Merge branch 'master' of git://repo.or.cz/git-gui

* 'master' of git://repo.or.cz/git-gui:
  git-gui: Use vi-like keys in merge dialog
  git-gui: Include commit id/subject in merge choices
  git-gui: Show all possible branches for merge
  git-gui: Move merge support into a namespace
  git-gui: Allow vi keys to scroll the diff/blame regions
  git-gui: Move console procs into their own namespace
  git-gui: Refactor into multiple files to save my sanity
  git-gui: Track our own embedded values and rebuild when they change
  git-gui: Refactor to use our git proc more often
  git-gui: Use option database defaults to set the font
  git-gui: Cleanup common font handling for font_ui
  git-gui: Correct line wrapping for too many branch message
  git-gui: Warn users before making an octopus merge
  git-gui: Include the subject in the status bar after commit

Also perform an evil merge change to update Git's main Makefile to
pass the proper options down into git-gui now that it depends on
reasonable values for 'sharedir' and 'TCL_PATH'.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

17 files changed, 3996 insertions, 4016 deletions

diff --git a/git-gui/.gitignore b/git-gui/.gitignore
index c714d382e8..020b86deae 100644
--- a/git-gui/.gitignore
+++ b/git-gui/.gitignore
@@ -1,3 +1,5 @@
 GIT-VERSION-FILE
+GIT-GUI-VARS
 git-citool
 git-gui
+lib/tclIndex
diff --git a/git-gui/Makefile b/git-gui/Makefile
index b29d7d1e68..ba1e33ba84 100644
--- a/git-gui/Makefile
+++ b/git-gui/Makefile
@@ -10,6 +10,7 @@ GIT-VERSION-FILE: .FORCE-GIT-VERSION-FILE
 SCRIPT_SH = git-gui.sh
 GITGUI_BUILT_INS = git-citool
 ALL_PROGRAMS = $(GITGUI_BUILT_INS) $(patsubst %.sh,%,$(SCRIPT_SH))
+ALL_LIBFILES = $(wildcard lib/*.tcl)
 
 ifndef SHELL_PATH
 	SHELL_PATH = /bin/sh
@@ -19,6 +20,10 @@ ifndef gitexecdir
 	gitexecdir := $(shell git --exec-path)
 endif
 
+ifndef sharedir
+	sharedir := $(dir $(gitexecdir))/share
+endif
+
 ifndef INSTALL
 	INSTALL = install
 endif
@@ -26,8 +31,10 @@ endif
 ifndef V
 	QUIET_GEN      = @echo '   ' GEN $@;
 	QUIET_BUILT_IN = @echo '   ' BUILTIN $@;
+	QUIET_INDEX    = @echo '   ' INDEX $(dir $@);
 endif
 
+TCL_PATH   ?= tclsh
 TCLTK_PATH ?= wish
 
 ifeq ($(findstring $(MAKEFLAGS),s),s)
@@ -40,11 +47,15 @@ gitexecdir_SQ = $(subst ','\'',$(gitexecdir))
 SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
 TCLTK_PATH_SQ = $(subst ','\'',$(TCLTK_PATH))
 
+libdir   ?= $(sharedir)/git-gui/lib
+libdir_SQ = $(subst ','\'',$(libdir))
+
 $(patsubst %.sh,%,$(SCRIPT_SH)) : % : %.sh
 	$(QUIET_GEN)rm -f $@ $@+ && \
 	sed -e '1s|#!.*/sh|#!$(SHELL_PATH_SQ)|' \
 		-e 's|^exec wish "$$0"|exec $(subst |,'\|',$(TCLTK_PATH_SQ)) "$$0"|' \
 		-e 's/@@GITGUI_VERSION@@/$(GITGUI_VERSION)/g' \
+		-e 's|@@GITGUI_LIBDIR@@|$(libdir_SQ)|' \
 		$@.sh >$@+ && \
 	chmod +x $@+ && \
 	mv $@+ $@
@@ -52,22 +63,43 @@ $(patsubst %.sh,%,$(SCRIPT_SH)) : % : %.sh
 $(GITGUI_BUILT_INS): git-gui
 	$(QUIET_BUILT_IN)rm -f $@ && ln git-gui $@
 
+lib/tclIndex: $(ALL_LIBFILES)
+	$(QUIET_INDEX)echo auto_mkindex lib '*.tcl' | $(TCL_PATH)
+
 # These can record GITGUI_VERSION
-$(patsubst %.sh,%,$(SCRIPT_SH)): GIT-VERSION-FILE
+$(patsubst %.sh,%,$(SCRIPT_SH)): GIT-VERSION-FILE GIT-GUI-VARS
+
+TRACK_VARS = \
+	$(subst ','\'',SHELL_PATH='$(SHELL_PATH_SQ)') \
+	$(subst ','\'',TCLTK_PATH='$(TCLTK_PATH_SQ)') \
+	$(subst ','\'',libdir='$(libdir_SQ)') \
+#end TRACK_VARS
+
+GIT-GUI-VARS: .FORCE-GIT-GUI-VARS
+	@VARS='$(TRACK_VARS)'; \
+	if test x"$$VARS" != x"`cat $@ 2>/dev/null`" ; then \
+		echo 1>&2 "    * new locations or Tcl/Tk interpreter"; \
+		echo 1>$@ "$$VARS"; \
+	fi
 
-all:: $(ALL_PROGRAMS)
+all:: $(ALL_PROGRAMS) lib/tclIndex
 
 install: all
 	$(INSTALL) -d -m755 '$(DESTDIR_SQ)$(gitexecdir_SQ)'
 	$(INSTALL) git-gui '$(DESTDIR_SQ)$(gitexecdir_SQ)'
 	$(foreach p,$(GITGUI_BUILT_INS), rm -f '$(DESTDIR_SQ)$(gitexecdir_SQ)/$p' && ln '$(DESTDIR_SQ)$(gitexecdir_SQ)/git-gui' '$(DESTDIR_SQ)$(gitexecdir_SQ)/$p' ;)
+	$(INSTALL) -d -m755 '$(DESTDIR_SQ)$(libdir_SQ)'
+	$(INSTALL) -m644 lib/tclIndex '$(DESTDIR_SQ)$(libdir_SQ)'
+	$(foreach p,$(ALL_LIBFILES), $(INSTALL) -m644 $p '$(DESTDIR_SQ)$(libdir_SQ)' ;)
 
 dist-version:
 	@mkdir -p $(TARDIR)
 	@echo $(GITGUI_VERSION) > $(TARDIR)/version
 
 clean::
-	rm -f $(ALL_PROGRAMS) GIT-VERSION-FILE
+	rm -f $(ALL_PROGRAMS) lib/tclIndex
+	rm -f GIT-VERSION-FILE GIT-GUI-VARS
 
 .PHONY: all install dist-version clean
 .PHONY: .FORCE-GIT-VERSION-FILE
+.PHONY: .FORCE-GIT-GUI-VARS
diff --git a/git-gui/git-gui.sh b/git-gui/git-gui.sh
index 0ad2815d10..46358258bb 100755
--- a/git-gui/git-gui.sh
+++ b/git-gui/git-gui.sh
@@ -22,6 +22,30 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA}
 
 ######################################################################
 ##
+## configure our library
+
+set oguilib {@@GITGUI_LIBDIR@@}
+if {[string match @@* $oguilib]} {
+	set oguilib [file join [file dirname [file normalize $argv0]] lib]
+}
+set auto_path [concat [list $oguilib] $auto_path]
+
+if {![catch {set _verbose $env(GITGUI_VERBOSE)}]} {
+	unset _verbose
+	rename auto_load real__auto_load
+	proc auto_load {name args} {
+		puts stderr "auto_load $name"
+		return [uplevel 1 real__auto_load $name $args]
+	}
+	rename source real__source
+	proc source {name} {
+		puts stderr "source    $name"
+		uplevel 1 real__source $name
+	}
+}
+
+######################################################################
+##
 ## read only globals
 
 set _appname [lindex [file split $argv0] end]
@@ -179,56 +203,6 @@ proc load_config {include_global} {
 	}
 }
 
-proc save_config {} {
-	global default_config font_descs
-	global repo_config global_config
-	global repo_config_new global_config_new
-
-	foreach option $font_descs {
-		set name [lindex $option 0]
-		set font [lindex $option 1]
-		font configure $font \
-			-family $global_config_new(gui.$font^^family) \
-			-size $global_config_new(gui.$font^^size)
-		font configure ${font}bold \
-			-family $global_config_new(gui.$font^^family) \
-			-size $global_config_new(gui.$font^^size)
-		set global_config_new(gui.$name) [font configure $font]
-		unset global_config_new(gui.$font^^family)
-		unset global_config_new(gui.$font^^size)
-	}
-
-	foreach name [array names default_config] {
-		set value $global_config_new($name)
-		if {$value ne $global_config($name)} {
-			if {$value eq $default_config($name)} {
-				catch {git config --global --unset $name}
-			} else {
-				regsub -all "\[{}\]" $value {"} value
-				git config --global $name $value
-			}
-			set global_config($name) $value
-			if {$value eq $repo_config($name)} {
-				catch {git config --unset $name}
-				set repo_config($name) $value
-			}
-		}
-	}
-
-	foreach name [array names default_config] {
-		set value $repo_config_new($name)
-		if {$value ne $repo_config($name)} {
-			if {$value eq $global_config($name)} {
-				catch {git config --unset $name}
-			} else {
-				regsub -all "\[{}\]" $value {"} value
-				git config $name $value
-			}
-			set repo_config($name) $value
-		}
-	}
-}
-
 ######################################################################
 ##
 ## handy utils
@@ -237,70 +211,13 @@ proc git {args} {
 	return [eval exec git $args]
 }
 
-proc error_popup {msg} {
-	set title [appname]
-	if {[reponame] ne {}} {
-		append title " ([reponame])"
-	}
-	option add *Dialog.msg.font font_ui
-	option add *Button.font font_ui
-	set cmd [list tk_messageBox \
-		-icon error \
-		-type ok \
-		-title "$title: error" \
-		-message $msg]
-	if {[winfo ismapped .]} {
-		lappend cmd -parent .
-	}
-	eval $cmd
-}
-
-proc warn_popup {msg} {
-	set title [appname]
-	if {[reponame] ne {}} {
-		append title " ([reponame])"
-	}
-	option add *Dialog.msg.font font_ui
-	option add *Button.font font_ui
-	set cmd [list tk_messageBox \
-		-icon warning \
-		-type ok \
-		-title "$title: warning" \
-		-message $msg]
-	if {[winfo ismapped .]} {
-		lappend cmd -parent .
-	}
-	eval $cmd
-}
-
-proc info_popup {msg {parent .}} {
-	set title [appname]
-	if {[reponame] ne {}} {
-		append title " ([reponame])"
-	}
-	option add *Dialog.msg.font font_ui
-	option add *Button.font font_ui
-	tk_messageBox \
-		-parent $parent \
-		-icon info \
-		-type ok \
-		-title $title \
-		-message $msg
-}
-
-proc ask_popup {msg} {
-	set title [appname]
-	if {[reponame] ne {}} {
-		append title " ([reponame])"
-	}
-	option add *Dialog.msg.font font_ui
-	option add *Button.font font_ui
-	return [tk_messageBox \
-		-parent . \
-		-icon question \
-		-type yesno \
-		-title $title \
-		-message $msg]
+auto_load tk_optionMenu
+rename tk_optionMenu real__tkOptionMenu
+proc tk_optionMenu {w varName args} {
+	set m [eval real__tkOptionMenu $w $varName $args]
+	$m configure -font font_ui
+	$w configure -font font_ui
+	return $m
 }
 
 ######################################################################
@@ -663,7 +580,7 @@ proc read_ls_others {fd after} {
 }
 
 proc rescan_done {fd buf after} {
-	global rescan_active
+	global rescan_active current_diff_path
 	global file_states repo_config
 	upvar $buf to_clear
 
@@ -675,7 +592,7 @@ proc rescan_done {fd buf after} {
 	prune_selection
 	unlock_index
 	display_all_files
-	reshow_diff
+	if {$current_diff_path ne {}} reshow_diff
 	uplevel #0 $after
 }
 
@@ -691,757 +608,6 @@ proc prune_selection {} {
 
 ######################################################################
 ##
-## diff
-
-proc clear_diff {} {
-	global ui_diff current_diff_path current_diff_header
-	global ui_index ui_workdir
-
-	$ui_diff conf -state normal
-	$ui_diff delete 0.0 end
-	$ui_diff conf -state disabled
-
-	set current_diff_path {}
-	set current_diff_header {}
-
-	$ui_index tag remove in_diff 0.0 end
-	$ui_workdir tag remove in_diff 0.0 end
-}
-
-proc reshow_diff {} {
-	global ui_status_value file_states file_lists
-	global current_diff_path current_diff_side
-
-	set p $current_diff_path
-	if {$p eq {}} {
-		# No diff is being shown.
-	} elseif {$current_diff_side eq {}
-		|| [catch {set s $file_states($p)}]
-		|| [lsearch -sorted -exact $file_lists($current_diff_side) $p] == -1} {
-		clear_diff
-	} else {
-		show_diff $p $current_diff_side
-	}
-}
-
-proc handle_empty_diff {} {
-	global current_diff_path file_states file_lists
-
-	set path $current_diff_path
-	set s $file_states($path)
-	if {[lindex $s 0] ne {_M}} return
-
-	info_popup "No differences detected.
-
-[short_path $path] has no changes.
-
-The modification date of this file was updated by another application, but the content within the file was not changed.
-
-A rescan will be automatically started to find other files which may have the same state."
-
-	clear_diff
-	display_file $path __
-	rescan {set ui_status_value {Ready.}} 0
-}
-
-proc show_diff {path w {lno {}}} {
-	global file_states file_lists
-	global is_3way_diff diff_active repo_config
-	global ui_diff ui_status_value ui_index ui_workdir
-	global current_diff_path current_diff_side current_diff_header
-
-	if {$diff_active || ![lock_index read]} return
-
-	clear_diff
-	if {$lno == {}} {
-		set lno [lsearch -sorted -exact $file_lists($w) $path]
-		if {$lno >= 0} {
-			incr lno
-		}
-	}
-	if {$lno >= 1} {
-		$w tag add in_diff $lno.0 [expr {$lno + 1}].0
-	}
-
-	set s $file_states($path)
-	set m [lindex $s 0]
-	set is_3way_diff 0
-	set diff_active 1
-	set current_diff_path $path
-	set current_diff_side $w
-	set current_diff_header {}
-	set ui_status_value "Loading diff of [escape_path $path]..."
-
-	# - Git won't give us the diff, there's nothing to compare to!
-	#
-	if {$m eq {_O}} {
-		set max_sz [expr {128 * 1024}]
-		if {[catch {
-				set fd [open $path r]
-				set content [read $fd $max_sz]
-				close $fd
-				set sz [file size $path]
-			} err ]} {
-			set diff_active 0
-			unlock_index
-			set ui_status_value "Unable to display [escape_path $path]"
-			error_popup "Error loading file:\n\n$err"
-			return
-		}
-		$ui_diff conf -state normal
-		if {![catch {set type [exec file $path]}]} {
-			set n [string length $path]
-			if {[string equal -length $n $path $type]} {
-				set type [string range $type $n end]
-				regsub {^:?\s*} $type {} type
-			}
-			$ui_diff insert end "* $type\n" d_@
-		}
-		if {[string first "\0" $content] != -1} {
-			$ui_diff insert end \
-				"* Binary file (not showing content)." \
-				d_@
-		} else {
-			if {$sz > $max_sz} {
-				$ui_diff insert end \
-"* Untracked file is $sz bytes.
-* Showing only first $max_sz bytes.
-" d_@
-			}
-			$ui_diff insert end $content
-			if {$sz > $max_sz} {
-				$ui_diff insert end "
-* Untracked file clipped here by [appname].
-* To see the entire file, use an external editor.
-" d_@
-			}
-		}
-		$ui_diff conf -state disabled
-		set diff_active 0
-		unlock_index
-		set ui_status_value {Ready.}
-		return
-	}
-
-	set cmd [list | git]
-	if {$w eq $ui_index} {
-		lappend cmd diff-index
-		lappend cmd --cached
-	} elseif {$w eq $ui_workdir} {
-		if {[string index $m 0] eq {U}} {
-			lappend cmd diff
-		} else {
-			lappend cmd diff-files
-		}
-	}
-
-	lappend cmd -p
-	lappend cmd --no-color
-	if {$repo_config(gui.diffcontext) > 0} {
-		lappend cmd "-U$repo_config(gui.diffcontext)"
-	}
-	if {$w eq $ui_index} {
-		lappend cmd [PARENT]
-	}
-	lappend cmd --
-	lappend cmd $path
-
-	if {[catch {set fd [open $cmd r]} err]} {
-		set diff_active 0
-		unlock_index
-		set ui_status_value "Unable to display [escape_path $path]"
-		error_popup "Error loading diff:\n\n$err"
-		return
-	}
-
-	fconfigure $fd \
-		-blocking 0 \
-		-encoding binary \
-		-translation binary
-	fileevent $fd readable [list read_diff $fd]
-}
-
-proc read_diff {fd} {
-	global ui_diff ui_status_value diff_active
-	global is_3way_diff current_diff_header
-
-	$ui_diff conf -state normal
-	while {[gets $fd line] >= 0} {
-		# -- Cleanup uninteresting diff header lines.
-		#
-		if {   [string match {diff --git *}      $line]
-			|| [string match {diff --cc *}       $line]
-			|| [string match {diff --combined *} $line]
-			|| [string match {--- *}             $line]
-			|| [string match {+++ *}             $line]} {
-			append current_diff_header $line "\n"
-			continue
-		}
-		if {[string match {index *} $line]} continue
-		if {$line eq {deleted file mode 120000}} {
-			set line "deleted symlink"
-		}
-
-		# -- Automatically detect if this is a 3 way diff.
-		#
-		if {[string match {@@@ *} $line]} {set is_3way_diff 1}
-
-		if {[string match {mode *} $line]
-			|| [string match {new file *} $line]
-			|| [string match {deleted file *} $line]
-			|| [string match {Binary files * and * differ} $line]
-			|| $line eq {\ No newline at end of file}
-			|| [regexp {^\* Unmerged path } $line]} {
-			set tags {}
-		} elseif {$is_3way_diff} {
-			set op [string range $line 0 1]
-			switch -- $op {
-			{  } {set tags {}}
-			{@@} {set tags d_@}
-			{ +} {set tags d_s+}
-			{ -} {set tags d_s-}
-			{+ } {set tags d_+s}
-			{- } {set tags d_-s}
-			{--} {set tags d_--}
-			{++} {
-				if {[regexp {^\+\+([<>]{7} |={7})} $line _g op]} {
-					set line [string replace $line 0 1 {  }]
-					set tags d$op
-				} else {
-					set tags d_++
-				}
-			}
-			default {
-				puts "error: Unhandled 3 way diff marker: {$op}"
-				set tags {}
-			}
-			}
-		} else {
-			set op [string index $line 0]
-			switch -- $op {
-			{ } {set tags {}}
-			{@} {set tags d_@}
-			{-} {set tags d_-}
-			{+} {
-				if {[regexp {^\+([<>]{7} |={7})} $line _g op]} {
-					set line [string replace $line 0 0 { }]
-					set tags d$op
-				} else {
-					set tags d_+
-				}
-			}
-			default {
-				puts "error: Unhandled 2 way diff marker: {$op}"
-				set tags {}
-			}
-			}
-		}
-		$ui_diff insert end $line $tags
-		if {[string index $line end] eq "\r"} {
-			$ui_diff tag add d_cr {end - 2c}
-		}
-		$ui_diff insert end "\n" $tags
-	}
-	$ui_diff conf -state disabled
-
-	if {[eof $fd]} {
-		close $fd
-		set diff_active 0
-		unlock_index
-		set ui_status_value {Ready.}
-
-		if {[$ui_diff index end] eq {2.0}} {
-			handle_empty_diff
-		}
-	}
-}
-
-proc apply_hunk {x y} {
-	global current_diff_path current_diff_header current_diff_side
-	global ui_diff ui_index file_states
-
-	if {$current_diff_path eq {} || $current_diff_header eq {}} return
-	if {![lock_index apply_hunk]} return
-
-	set apply_cmd {git apply --cached --whitespace=nowarn}
-	set mi [lindex $file_states($current_diff_path) 0]
-	if {$current_diff_side eq $ui_index} {
-		set mode unstage
-		lappend apply_cmd --reverse
-		if {[string index $mi 0] ne {M}} {
-			unlock_index
-			return
-		}
-	} else {
-		set mode stage
-		if {[string index $mi 1] ne {M}} {
-			unlock_index
-			return
-		}
-	}
-
-	set s_lno [lindex [split [$ui_diff index @$x,$y] .] 0]
-	set s_lno [$ui_diff search -backwards -regexp ^@@ $s_lno.0 0.0]
-	if {$s_lno eq {}} {
-		unlock_index
-		return
-	}
-
-	set e_lno [$ui_diff search -forwards -regexp ^@@ "$s_lno + 1 lines" end]
-	if {$e_lno eq {}} {
-		set e_lno end
-	}
-
-	if {[catch {
-		set p [open "| $apply_cmd" w]
-		fconfigure $p -translation binary -encoding binary
-		puts -nonewline $p $current_diff_header
-		puts -nonewline $p [$ui_diff get $s_lno $e_lno]
-		close $p} err]} {
-		error_popup "Failed to $mode selected hunk.\n\n$err"
-		unlock_index
-		return
-	}
-
-	$ui_diff conf -state normal
-	$ui_diff delete $s_lno $e_lno
-	$ui_diff conf -state disabled
-
-	if {[$ui_diff get 1.0 end] eq "\n"} {
-		set o _
-	} else {
-		set o ?
-	}
-
-	if {$current_diff_side eq $ui_index} {
-		set mi ${o}M
-	} elseif {[string index $mi 0] eq {_}} {
-		set mi M$o
-	} else {
-		set mi ?$o
-	}
-	unlock_index
-	display_file $current_diff_path $mi
-	if {$o eq {_}} {
-		clear_diff
-	}
-}
-
-######################################################################
-##
-## commit
-
-proc load_last_commit {} {
-	global HEAD PARENT MERGE_HEAD commit_type ui_comm
-	global repo_config
-
-	if {[llength $PARENT] == 0} {
-		error_popup {There is nothing to amend.
-
-You are about to create the initial commit.  There is no commit before this to amend.
-}
-		return
-	}
-
-	repository_state curType curHEAD curMERGE_HEAD
-	if {$curType eq {merge}} {
-		error_popup {Cannot amend while merging.
-
-You are currently in the middle of a merge that has not been fully completed.  You cannot amend the prior commit unless you first abort the current merge activity.
-}
-		return
-	}
-
-	set msg {}
-	set parents [list]
-	if {[catch {
-			set fd [open "| git cat-file commit $curHEAD" r]
-			fconfigure $fd -encoding binary -translation lf
-			if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
-				set enc utf-8
-			}
-			while {[gets $fd line] > 0} {
-				if {[string match {parent *} $line]} {
-					lappend parents [string range $line 7 end]
-				} elseif {[string match {encoding *} $line]} {
-					set enc [string tolower [string range $line 9 end]]
-				}
-			}
-			set msg [encoding convertfrom $enc [read $fd]]
-			set msg [string trim $msg]
-			close $fd
-		} err]} {
-		error_popup "Error loading commit data for amend:\n\n$err"
-		return
-	}
-
-	set HEAD $curHEAD
-	set PARENT $parents
-	set MERGE_HEAD [list]
-	switch -- [llength $parents] {
-	0       {set commit_type amend-initial}
-	1       {set commit_type amend}
-	default {set commit_type amend-merge}
-	}
-
-	$ui_comm delete 0.0 end
-	$ui_comm insert end $msg
-	$ui_comm edit reset
-	$ui_comm edit modified false
-	rescan {set ui_status_value {Ready.}}
-}
-
-proc create_new_commit {} {
-	global commit_type ui_comm
-
-	set commit_type normal
-	$ui_comm delete 0.0 end
-	$ui_comm edit reset
-	$ui_comm edit modified false
-	rescan {set ui_status_value {Ready.}}
-}
-
-set GIT_COMMITTER_IDENT {}
-
-proc committer_ident {} {
-	global GIT_COMMITTER_IDENT
-
-	if {$GIT_COMMITTER_IDENT eq {}} {
-		if {[catch {set me [git var GIT_COMMITTER_IDENT]} err]} {
-			error_popup "Unable to obtain your identity:\n\n$err"
-			return {}
-		}
-		if {![regexp {^(.*) [0-9]+ [-+0-9]+$} \
-			$me me GIT_COMMITTER_IDENT]} {
-			error_popup "Invalid GIT_COMMITTER_IDENT:\n\n$me"
-			return {}
-		}
-	}
-
-	return $GIT_COMMITTER_IDENT
-}
-
-proc commit_tree {} {
-	global HEAD commit_type file_states ui_comm repo_config
-	global ui_status_value pch_error
-
-	if {[committer_ident] eq {}} return
-	if {![lock_index update]} return
-
-	# -- Our in memory state should match the repository.
-	#
-	repository_state curType curHEAD curMERGE_HEAD
-	if {[string match amend* $commit_type]
-		&& $curType eq {normal}
-		&& $curHEAD eq $HEAD} {
-	} elseif {$commit_type ne $curType || $HEAD ne $curHEAD} {
-		info_popup {Last scanned state does not match repository state.
-
-Another Git program has modified this repository since the last scan.  A rescan must be performed before another commit can be created.
-
-The rescan will be automatically started now.
-}
-		unlock_index
-		rescan {set ui_status_value {Ready.}}
-		return
-	}
-
-	# -- At least one file should differ in the index.
-	#
-	set files_ready 0
-	foreach path [array names file_states] {
-		switch -glob -- [lindex $file_states($path) 0] {
-		_? {continue}
-		A? -
-		D? -
-		M? {set files_ready 1}
-		U? {
-			error_popup "Unmerged files cannot be committed.
-
-File [short_path $path] has merge conflicts.  You must resolve them and add the file before committing.
-"
-			unlock_index
-			return
-		}
-		default {
-			error_popup "Unknown file state [lindex $s 0] detected.
-
-File [short_path $path] cannot be committed by this program.
-"
-		}
-		}
-	}
-	if {!$files_ready && ![string match *merge $curType]} {
-		info_popup {No changes to commit.
-
-You must add at least 1 file before you can commit.
-}
-		unlock_index
-		return
-	}
-
-	# -- A message is required.
-	#
-	set msg [string trim [$ui_comm get 1.0 end]]
-	regsub -all -line {[ \t\r]+$} $msg {} msg
-	if {$msg eq {}} {
-		error_popup {Please supply a commit message.
-
-A good commit message has the following format:
-
-- First line: Describe in one sentance what you did.
-- Second line: Blank
-- Remaining lines: Describe why this change is good.
-}
-		unlock_index
-		return
-	}
-
-	# -- Run the pre-commit hook.
-	#
-	set pchook [gitdir hooks pre-commit]
-
-	# On Cygwin [file executable] might lie so we need to ask
-	# the shell if the hook is executable.  Yes that's annoying.
-	#
-	if {[is_Cygwin] && [file isfile $pchook]} {
-		set pchook [list sh -c [concat \
-			"if test -x \"$pchook\";" \
-			"then exec \"$pchook\" 2>&1;" \
-			"fi"]]
-	} elseif {[file executable $pchook]} {
-		set pchook [list $pchook |& cat]
-	} else {
-		commit_writetree $curHEAD $msg
-		return
-	}
-
-	set ui_status_value {Calling pre-commit hook...}
-	set pch_error {}
-	set fd_ph [open "| $pchook" r]
-	fconfigure $fd_ph -blocking 0 -translation binary
-	fileevent $fd_ph readable \
-		[list commit_prehook_wait $fd_ph $curHEAD $msg]
-}
-
-proc commit_prehook_wait {fd_ph curHEAD msg} {
-	global pch_error ui_status_value
-
-	append pch_error [read $fd_ph]
-	fconfigure $fd_ph -blocking 1
-	if {[eof $fd_ph]} {
-		if {[catch {close $fd_ph}]} {
-			set ui_status_value {Commit declined by pre-commit hook.}
-			hook_failed_popup pre-commit $pch_error
-			unlock_index
-		} else {
-			commit_writetree $curHEAD $msg
-		}
-		set pch_error {}
-		return
-	}
-	fconfigure $fd_ph -blocking 0
-}
-
-proc commit_writetree {curHEAD msg} {
-	global ui_status_value
-
-	set ui_status_value {Committing changes...}
-	set fd_wt [open "| git write-tree" r]
-	fileevent $fd_wt readable \
-		[list commit_committree $fd_wt $curHEAD $msg]
-}
-
-proc commit_committree {fd_wt curHEAD msg} {
-	global HEAD PARENT MERGE_HEAD commit_type
-	global all_heads current_branch
-	global ui_status_value ui_comm selected_commit_type
-	global file_states selected_paths rescan_active
-	global repo_config
-
-	gets $fd_wt tree_id
-	if {$tree_id eq {} || [catch {close $fd_wt} err]} {
-		error_popup "write-tree failed:\n\n$err"
-		set ui_status_value {Commit failed.}
-		unlock_index
-		return
-	}
-
-	# -- Verify this wasn't an empty change.
-	#
-	if {$commit_type eq {normal}} {
-		set old_tree [git rev-parse "$PARENT^{tree}"]
-		if {$tree_id eq $old_tree} {
-			info_popup {No changes to commit.
-
-No files were modified by this commit and it was not a merge commit.
-
-A rescan will be automatically started now.
-}
-			unlock_index
-			rescan {set ui_status_value {No changes to commit.}}
-			return
-		}
-	}
-
-	# -- Build the message.
-	#
-	set msg_p [gitdir COMMIT_EDITMSG]
-	set msg_wt [open $msg_p w]
-	if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
-		set enc utf-8
-	}
-	fconfigure $msg_wt -encoding binary -translation binary
-	puts -nonewline $msg_wt [encoding convertto $enc $msg]
-	close $msg_wt
-
-	# -- Create the commit.
-	#
-	set cmd [list git commit-tree $tree_id]
-	foreach p [concat $PARENT $MERGE_HEAD] {
-		lappend cmd -p $p
-	}
-	lappend cmd <$msg_p
-	if {[catch {set cmt_id [eval exec $cmd]} err]} {
-		error_popup "commit-tree failed:\n\n$err"
-		set ui_status_value {Commit failed.}
-		unlock_index
-		return
-	}
-
-	# -- Update the HEAD ref.
-	#
-	set reflogm commit
-	if {$commit_type ne {normal}} {
-		append reflogm " ($commit_type)"
-	}
-	set i [string first "\n" $msg]
-	if {$i >= 0} {
-		append reflogm {: } [string range $msg 0 [expr {$i - 1}]]
-	} else {
-		append reflogm {: } $msg
-	}
-	set cmd [list git update-ref -m $reflogm HEAD $cmt_id $curHEAD]
-	if {[catch {eval exec $cmd} err]} {
-		error_popup "update-ref failed:\n\n$err"
-		set ui_status_value {Commit failed.}
-		unlock_index
-		return
-	}
-
-	# -- Cleanup after ourselves.
-	#
-	catch {file delete $msg_p}
-	catch {file delete [gitdir MERGE_HEAD]}
-	catch {file delete [gitdir MERGE_MSG]}
-	catch {file delete [gitdir SQUASH_MSG]}
-	catch {file delete [gitdir GITGUI_MSG]}
-
-	# -- Let rerere do its thing.
-	#
-	if {[file isdirectory [gitdir rr-cache]]} {
-		catch {git rerere}
-	}
-
-	# -- Run the post-commit hook.
-	#
-	set pchook [gitdir hooks post-commit]
-	if {[is_Cygwin] && [file isfile $pchook]} {
-		set pchook [list sh -c [concat \
-			"if test -x \"$pchook\";" \
-			"then exec \"$pchook\";" \
-			"fi"]]
-	} elseif {![file executable $pchook]} {
-		set pchook {}
-	}
-	if {$pchook ne {}} {
-		catch {exec $pchook &}
-	}
-
-	$ui_comm delete 0.0 end
-	$ui_comm edit reset
-	$ui_comm edit modified false
-
-	if {[is_enabled singlecommit]} do_quit
-
-	# -- Make sure our current branch exists.
-	#
-	if {$commit_type eq {initial}} {
-		lappend all_heads $current_branch
-		set all_heads [lsort -unique $all_heads]
-		populate_branch_menu
-	}
-
-	# -- Update in memory status
-	#
-	set selected_commit_type new
-	set commit_type normal
-	set HEAD $cmt_id
-	set PARENT $cmt_id
-	set MERGE_HEAD [list]
-
-	foreach path [array names file_states] {
-		set s $file_states($path)
-		set m [lindex $s 0]
-		switch -glob -- $m {
-		_O -
-		_M -
-		_D {continue}
-		__ -
-		A_ -
-		M_ -
-		D_ {
-			unset file_states($path)
-			catch {unset selected_paths($path)}
-		}
-		DO {
-			set file_states($path) [list _O [lindex $s 1] {} {}]
-		}
-		AM -
-		AD -
-		MM -
-		MD {
-			set file_states($path) [list \
-				_[string index $m 1] \
-				[lindex $s 1] \
-				[lindex $s 3] \
-				{}]
-		}
-		}
-	}
-
-	display_all_files
-	unlock_index
-	reshow_diff
-	set ui_status_value \
-		"Changes committed as [string range $cmt_id 0 7]."
-}
-
-######################################################################
-##
-## fetch push
-
-proc fetch_from {remote} {
-	set w [new_console \
-		"fetch $remote" \
-		"Fetching new changes from $remote"]
-	set cmd [list git fetch]
-	lappend cmd $remote
-	console_exec $w $cmd console_done
-}
-
-proc push_to {remote} {
-	set w [new_console \
-		"push $remote" \
-		"Pushing changes to $remote"]
-	set cmd [list git push]
-	lappend cmd -v
-	lappend cmd $remote
-	console_exec $w $cmd console_done
-}
-
-######################################################################
-##
 ## ui helpers
 
 proc mapicon {w state path} {
@@ -1633,2101 +799,6 @@ proc display_all_files {} {
 	$ui_workdir conf -state disabled
 }
 
-proc update_indexinfo {msg pathList after} {
-	global update_index_cp ui_status_value
-
-	if {![lock_index update]} return
-
-	set update_index_cp 0
-	set pathList [lsort $pathList]
-	set totalCnt [llength $pathList]
-	set batch [expr {int($totalCnt * .01) + 1}]
-	if {$batch > 25} {set batch 25}
-
-	set ui_status_value [format \
-		"$msg... %i/%i files (%.2f%%)" \
-		$update_index_cp \
-		$totalCnt \
-		0.0]
-	set fd [open "| git update-index -z --index-info" w]
-	fconfigure $fd \
-		-blocking 0 \
-		-buffering full \
-		-buffersize 512 \
-		-encoding binary \
-		-translation binary
-	fileevent $fd writable [list \
-		write_update_indexinfo \
-		$fd \
-		$pathList \
-		$totalCnt \
-		$batch \
-		$msg \
-		$after \
-		]
-}
-
-proc write_update_indexinfo {fd pathList totalCnt batch msg after} {
-	global update_index_cp ui_status_value
-	global file_states current_diff_path
-
-	if {$update_index_cp >= $totalCnt} {
-		close $fd
-		unlock_index
-		uplevel #0 $after
-		return
-	}
-
-	for {set i $batch} \
-		{$update_index_cp < $totalCnt && $i > 0} \
-		{incr i -1} {
-		set path [lindex $pathList $update_index_cp]
-		incr update_index_cp
-
-		set s $file_states($path)
-		switch -glob -- [lindex $s 0] {
-		A? {set new _O}
-		M? {set new _M}
-		D_ {set new _D}
-		D? {set new _?}
-		?? {continue}
-		}
-		set info [lindex $s 2]
-		if {$info eq {}} continue
-
-		puts -nonewline $fd "$info\t[encoding convertto $path]\0"
-		display_file $path $new
-	}
-
-	set ui_status_value [format \
-		"$msg... %i/%i files (%.2f%%)" \
-		$update_index_cp \
-		$totalCnt \
-		[expr {100.0 * $update_index_cp / $totalCnt}]]
-}
-
-proc update_index {msg pathList after} {
-	global update_index_cp ui_status_value
-
-	if {![lock_index update]} return
-
-	set update_index_cp 0
-	set pathList [lsort $pathList]
-	set totalCnt [llength $pathList]
-	set batch [expr {int($totalCnt * .01) + 1}]
-	if {$batch > 25} {set batch 25}
-
-	set ui_status_value [format \
-		"$msg... %i/%i files (%.2f%%)" \
-		$update_index_cp \
-		$totalCnt \
-		0.0]
-	set fd [open "| git update-index --add --remove -z --stdin" w]
-	fconfigure $fd \
-		-blocking 0 \
-		-buffering full \
-		-buffersize 512 \
-		-encoding binary \
-		-translation binary
-	fileevent $fd writable [list \
-		write_update_index \
-		$fd \
-		$pathList \
-		$totalCnt \
-		$batch \
-		$msg \
-		$after \
-		]
-}
-
-proc write_update_index {fd pathList totalCnt batch msg after} {
-	global update_index_cp ui_status_value
-	global file_states current_diff_path
-
-	if {$update_index_cp >= $totalCnt} {
-		close $fd
-		unlock_index
-		uplevel #0 $after
-		return
-	}
-
-	for {set i $batch} \
-		{$update_index_cp < $totalCnt && $i > 0} \
-		{incr i -1} {
-		set path [lindex $pathList $update_index_cp]
-		incr update_index_cp
-
-		switch -glob -- [lindex $file_states($path) 0] {
-		AD {set new __}
-		?D {set new D_}
-		_O -
-		AM {set new A_}
-		U? {
-			if {[file exists $path]} {
-				set new M_
-			} else {
-				set new D_
-			}
-		}
-		?M {set new M_}
-		?? {continue}
-		}
-		puts -nonewline $fd "[encoding convertto $path]\0"
-		display_file $path $new
-	}
-
-	set ui_status_value [format \
-		"$msg... %i/%i files (%.2f%%)" \
-		$update_index_cp \
-		$totalCnt \
-		[expr {100.0 * $update_index_cp / $totalCnt}]]
-}
-
-proc checkout_index {msg pathList after} {
-	global update_index_cp ui_status_value
-
-	if {![lock_index update]} return
-
-	set update_index_cp 0
-	set pathList [lsort $pathList]
-	set totalCnt [llength $pathList]
-	set batch [expr {int($totalCnt * .01) + 1}]
-	if {$batch > 25} {set batch 25}
-
-	set ui_status_value [format \
-		"$msg... %i/%i files (%.2f%%)" \
-		$update_index_cp \
-		$totalCnt \
-		0.0]
-	set cmd [list git checkout-index]
-	lappend cmd --index
-	lappend cmd --quiet
-	lappend cmd --force
-	lappend cmd -z
-	lappend cmd --stdin
-	set fd [open "| $cmd " w]
-	fconfigure $fd \
-		-blocking 0 \
-		-buffering full \
-		-buffersize 512 \
-		-encoding binary \
-		-translation binary
-	fileevent $fd writable [list \
-		write_checkout_index \
-		$fd \
-		$pathList \
-		$totalCnt \
-		$batch \
-		$msg \
-		$after \
-		]
-}
-
-proc write_checkout_index {fd pathList totalCnt batch msg after} {
-	global update_index_cp ui_status_value
-	global file_states current_diff_path
-
-	if {$update_index_cp >= $totalCnt} {
-		close $fd
-		unlock_index
-		uplevel #0 $after
-		return
-	}
-
-	for {set i $batch} \
-		{$update_index_cp < $totalCnt && $i > 0} \
-		{incr i -1} {
-		set path [lindex $pathList $update_index_cp]
-		incr update_index_cp
-		switch -glob -- [lindex $file_states($path) 0] {
-		U? {continue}
-		?M -
-		?D {
-			puts -nonewline $fd "[encoding convertto $path]\0"
-			display_file $path ?_
-		}
-		}
-	}
-
-	set ui_status_value [format \
-		"$msg... %i/%i files (%.2f%%)" \
-		$update_index_cp \
-		$totalCnt \
-		[expr {100.0 * $update_index_cp / $totalCnt}]]
-}
-
-######################################################################
-##
-## branch management
-
-proc is_tracking_branch {name} {
-	global tracking_branches
-
-	if {![catch {set info $tracking_branches($name)}]} {
-		return 1
-	}
-	foreach t [array names tracking_branches] {
-		if {[string match {*/\*} $t] && [string match $t $name]} {
-			return 1
-		}
-	}
-	return 0
-}
-
-proc load_all_heads {} {
-	global all_heads
-
-	set all_heads [list]
-	set fd [open "| git for-each-ref --format=%(refname) refs/heads" r]
-	while {[gets $fd line] > 0} {
-		if {[is_tracking_branch $line]} continue
-		if {![regsub ^refs/heads/ $line {} name]} continue
-		lappend all_heads $name
-	}
-	close $fd
-
-	set all_heads [lsort $all_heads]
-}
-
-proc populate_branch_menu {} {
-	global all_heads disable_on_lock
-
-	set m .mbar.branch
-	set last [$m index last]
-	for {set i 0} {$i <= $last} {incr i} {
-		if {[$m type $i] eq {separator}} {
-			$m delete $i last
-			set new_dol [list]
-			foreach a $disable_on_lock {
-				if {[lindex $a 0] ne $m || [lindex $a 2] < $i} {
-					lappend new_dol $a
-				}
-			}
-			set disable_on_lock $new_dol
-			break
-		}
-	}
-
-	if {$all_heads ne {}} {
-		$m add separator
-	}
-	foreach b $all_heads {
-		$m add radiobutton \
-			-label $b \
-			-command [list switch_branch $b] \
-			-variable current_branch \
-			-value $b \
-			-font font_ui
-		lappend disable_on_lock \
-			[list $m entryconf [$m index last] -state]
-	}
-}
-
-proc all_tracking_branches {} {
-	global tracking_branches
-
-	set all_trackings {}
-	set cmd {}
-	foreach name [array names tracking_branches] {
-		if {[regsub {/\*$} $name {} name]} {
-			lappend cmd $name
-		} else {
-			regsub ^refs/(heads|remotes)/ $name {} name
-			lappend all_trackings $name
-		}
-	}
-
-	if {$cmd ne {}} {
-		set fd [open "| git for-each-ref --format=%(refname) $cmd" r]
-		while {[gets $fd name] > 0} {
-			regsub ^refs/(heads|remotes)/ $name {} name
-			lappend all_trackings $name
-		}
-		close $fd
-	}
-
-	return [lsort -unique $all_trackings]
-}
-
-proc load_all_tags {} {
-	set all_tags [list]
-	set fd [open "| git for-each-ref --format=%(refname) refs/tags" r]
-	while {[gets $fd line] > 0} {
-		if {![regsub ^refs/tags/ $line {} name]} continue
-		lappend all_tags $name
-	}
-	close $fd
-
-	return [lsort $all_tags]
-}
-
-proc do_create_branch_action {w} {
-	global all_heads null_sha1 repo_config
-	global create_branch_checkout create_branch_revtype
-	global create_branch_head create_branch_trackinghead
-	global create_branch_name create_branch_revexp
-	global create_branch_tag
-
-	set newbranch $create_branch_name
-	if {$newbranch eq {}
-		|| $newbranch eq $repo_config(gui.newbranchtemplate)} {
-		tk_messageBox \
-			-icon error \
-			-type ok \
-			-title [wm title $w] \
-			-parent $w \
-			-message "Please supply a branch name."
-		focus $w.desc.name_t
-		return
-	}
-	if {![catch {git show-ref --verify -- "refs/heads/$newbranch"}]} {
-		tk_messageBox \
-			-icon error \
-			-type ok \
-			-title [wm title $w] \
-			-parent $w \
-			-message "Branch '$newbranch' already exists."
-		focus $w.desc.name_t
-		return
-	}
-	if {[catch {git check-ref-format "heads/$newbranch"}]} {
-		tk_messageBox \
-			-icon error \
-			-type ok \
-			-title [wm title $w] \
-			-parent $w \
-			-message "We do not like '$newbranch' as a branch name."
-		focus $w.desc.name_t
-		return
-	}
-
-	set rev {}
-	switch -- $create_branch_revtype {
-	head {set rev $create_branch_head}
-	tracking {set rev $create_branch_trackinghead}
-	tag {set rev $create_branch_tag}
-	expression {set rev $create_branch_revexp}
-	}
-	if {[catch {set cmt [git rev-parse --verify "${rev}^0"]}]} {
-		tk_messageBox \
-			-icon error \
-			-type ok \
-			-title [wm title $w] \
-			-parent $w \
-			-message "Invalid starting revision: $rev"
-		return
-	}
-	set cmd [list git update-ref]
-	lappend cmd -m
-	lappend cmd "branch: Created from $rev"
-	lappend cmd "refs/heads/$newbranch"
-	lappend cmd $cmt
-	lappend cmd $null_sha1
-	if {[catch {eval exec $cmd} err]} {
-		tk_messageBox \
-			-icon error \
-			-type ok \
-			-title [wm title $w] \
-			-parent $w \
-			-message "Failed to create '$newbranch'.\n\n$err"
-		return
-	}
-
-	lappend all_heads $newbranch
-	set all_heads [lsort $all_heads]
-	populate_branch_menu
-	destroy $w
-	if {$create_branch_checkout} {
-		switch_branch $newbranch
-	}
-}
-
-proc radio_selector {varname value args} {
-	upvar #0 $varname var
-	set var $value
-}
-
-trace add variable create_branch_head write \
-	[list radio_selector create_branch_revtype head]
-trace add variable create_branch_trackinghead write \
-	[list radio_selector create_branch_revtype tracking]
-trace add variable create_branch_tag write \
-	[list radio_selector create_branch_revtype tag]
-
-trace add variable delete_branch_head write \
-	[list radio_selector delete_branch_checktype head]
-trace add variable delete_branch_trackinghead write \
-	[list radio_selector delete_branch_checktype tracking]
-
-proc do_create_branch {} {
-	global all_heads current_branch repo_config
-	global create_branch_checkout create_branch_revtype
-	global create_branch_head create_branch_trackinghead
-	global create_branch_name create_branch_revexp
-	global create_branch_tag
-
-	set w .branch_editor
-	toplevel $w
-	wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
-
-	label $w.header -text {Create New Branch} \
-		-font font_uibold
-	pack $w.header -side top -fill x
-
-	frame $w.buttons
-	button $w.buttons.create -text Create \
-		-font font_ui \
-		-default active \
-		-command [list do_create_branch_action $w]
-	pack $w.buttons.create -side right
-	button $w.buttons.cancel -text {Cancel} \
-		-font font_ui \
-		-command [list destroy $w]
-	pack $w.buttons.cancel -side right -padx 5
-	pack $w.buttons -side bottom -fill x -pady 10 -padx 10
-
-	labelframe $w.desc \
-		-text {Branch Description} \
-		-font font_ui
-	label $w.desc.name_l -text {Name:} -font font_ui
-	entry $w.desc.name_t \
-		-borderwidth 1 \
-		-relief sunken \
-		-width 40 \
-		-textvariable create_branch_name \
-		-font font_ui \
-		-validate key \
-		-validatecommand {
-			if {%d == 1 && [regexp {[~^:?*\[\0- ]} %S]} {return 0}
-			return 1
-		}
-	grid $w.desc.name_l $w.desc.name_t -sticky we -padx {0 5}
-	grid columnconfigure $w.desc 1 -weight 1
-	pack $w.desc -anchor nw -fill x -pady 5 -padx 5
-
-	labelframe $w.from \
-		-text {Starting Revision} \
-		-font font_ui
-	radiobutton $w.from.head_r \
-		-text {Local Branch:} \
-		-value head \
-		-variable create_branch_revtype \
-		-font font_ui
-	set lbranchm [eval tk_optionMenu $w.from.head_m create_branch_head \
-		$all_heads]
-	$lbranchm configure -font font_ui
-	$w.from.head_m configure -font font_ui
-	grid $w.from.head_r $w.from.head_m -sticky w
-	set all_trackings [all_tracking_branches]
-	if {$all_trackings ne {}} {
-		set create_branch_trackinghead [lindex $all_trackings 0]
-		radiobutton $w.from.tracking_r \
-			-text {Tracking Branch:} \
-			-value tracking \
-			-variable create_branch_revtype \
-			-font font_ui
-		set tbranchm [eval tk_optionMenu $w.from.tracking_m \
-			create_branch_trackinghead \
-			$all_trackings]
-		$tbranchm configure -font font_ui
-		$w.from.tracking_m configure -font font_ui
-		grid $w.from.tracking_r $w.from.tracking_m -sticky w
-	}
-	set all_tags [load_all_tags]
-	if {$all_tags ne {}} {
-		set create_branch_tag [lindex $all_tags 0]
-		radiobutton $w.from.tag_r \
-			-text {Tag:} \
-			-value tag \
-			-variable create_branch_revtype \
-			-font font_ui
-		set tagsm [eval tk_optionMenu $w.from.tag_m \
-			create_branch_tag \
-			$all_tags]
-		$tagsm configure -font font_ui
-		$w.from.tag_m configure -font font_ui
-		grid $w.from.tag_r $w.from.tag_m -sticky w
-	}
-	radiobutton $w.from.exp_r \
-		-text {Revision Expression:} \
-		-value expression \
-		-variable create_branch_revtype \
-		-font font_ui
-	entry $w.from.exp_t \
-		-borderwidth 1 \
-		-relief sunken \
-		-width 50 \
-		-textvariable create_branch_revexp \
-		-font font_ui \
-		-validate key \
-		-validatecommand {
-			if {%d == 1 && [regexp {\s} %S]} {return 0}
-			if {%d == 1 && [string length %S] > 0} {
-				set create_branch_revtype expression
-			}
-			return 1
-		}
-	grid $w.from.exp_r $w.from.exp_t -sticky we -padx {0 5}
-	grid columnconfigure $w.from 1 -weight 1
-	pack $w.from -anchor nw -fill x -pady 5 -padx 5
-
-	labelframe $w.postActions \
-		-text {Post Creation Actions} \
-		-font font_ui
-	checkbutton $w.postActions.checkout \
-		-text {Checkout after creation} \
-		-variable create_branch_checkout \
-		-font font_ui
-	pack $w.postActions.checkout -anchor nw
-	pack $w.postActions -anchor nw -fill x -pady 5 -padx 5
-
-	set create_branch_checkout 1
-	set create_branch_head $current_branch
-	set create_branch_revtype head
-	set create_branch_name $repo_config(gui.newbranchtemplate)
-	set create_branch_revexp {}
-
-	bind $w <Visibility> "
-		grab $w
-		$w.desc.name_t icursor end
-		focus $w.desc.name_t
-	"
-	bind $w <Key-Escape> "destroy $w"
-	bind $w <Key-Return> "do_create_branch_action $w;break"
-	wm title $w "[appname] ([reponame]): Create Branch"
-	tkwait window $w
-}
-
-proc do_delete_branch_action {w} {
-	global all_heads
-	global delete_branch_checktype delete_branch_head delete_branch_trackinghead
-
-	set check_rev {}
-	switch -- $delete_branch_checktype {
-	head {set check_rev $delete_branch_head}
-	tracking {set check_rev $delete_branch_trackinghead}
-	always {set check_rev {:none}}
-	}
-	if {$check_rev eq {:none}} {
-		set check_cmt {}
-	} elseif {[catch {set check_cmt [git rev-parse --verify "${check_rev}^0"]}]} {
-		tk_messageBox \
-			-icon error \
-			-type ok \
-			-title [wm title $w] \
-			-parent $w \
-			-message "Invalid check revision: $check_rev"
-		return
-	}
-
-	set to_delete [list]
-	set not_merged [list]
-	foreach i [$w.list.l curselection] {
-		set b [$w.list.l get $i]
-		if {[catch {set o [git rev-parse --verify $b]}]} continue
-		if {$check_cmt ne {}} {
-			if {$b eq $check_rev} continue
-			if {[catch {set m [git merge-base $o $check_cmt]}]} continue
-			if {$o ne $m} {
-				lappend not_merged $b
-				continue
-			}
-		}
-		lappend to_delete [list $b $o]
-	}
-	if {$not_merged ne {}} {
-		set msg "The following branches are not completely merged into $check_rev:
-
- - [join $not_merged "\n - "]"
-		tk_messageBox \
-			-icon info \
-			-type ok \
-			-title [wm title $w] \
-			-parent $w \
-			-message $msg
-	}
-	if {$to_delete eq {}} return
-	if {$delete_branch_checktype eq {always}} {
-		set msg {Recovering deleted branches is difficult.
-
-Delete the selected branches?}
-		if {[tk_messageBox \
-			-icon warning \
-			-type yesno \
-			-title [wm title $w] \
-			-parent $w \
-			-message $msg] ne yes} {
-			return
-		}
-	}
-
-	set failed {}
-	foreach i $to_delete {
-		set b [lindex $i 0]
-		set o [lindex $i 1]
-		if {[catch {git update-ref -d "refs/heads/$b" $o} err]} {
-			append failed " - $b: $err\n"
-		} else {
-			set x [lsearch -sorted -exact $all_heads $b]
-			if {$x >= 0} {
-				set all_heads [lreplace $all_heads $x $x]
-			}
-		}
-	}
-
-	if {$failed ne {}} {
-		tk_messageBox \
-			-icon error \
-			-type ok \
-			-title [wm title $w] \
-			-parent $w \
-			-message "Failed to delete branches:\n$failed"
-	}
-
-	set all_heads [lsort $all_heads]
-	populate_branch_menu
-	destroy $w
-}
-
-proc do_delete_branch {} {
-	global all_heads tracking_branches current_branch
-	global delete_branch_checktype delete_branch_head delete_branch_trackinghead
-
-	set w .branch_editor
-	toplevel $w
-	wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
-
-	label $w.header -text {Delete Local Branch} \
-		-font font_uibold
-	pack $w.header -side top -fill x
-
-	frame $w.buttons
-	button $w.buttons.create -text Delete \
-		-font font_ui \
-		-command [list do_delete_branch_action $w]
-	pack $w.buttons.create -side right
-	button $w.buttons.cancel -text {Cancel} \
-		-font font_ui \
-		-command [list destroy $w]
-	pack $w.buttons.cancel -side right -padx 5
-	pack $w.buttons -side bottom -fill x -pady 10 -padx 10
-
-	labelframe $w.list \
-		-text {Local Branches} \
-		-font font_ui
-	listbox $w.list.l \
-		-height 10 \
-		-width 70 \
-		-selectmode extended \
-		-yscrollcommand [list $w.list.sby set] \
-		-font font_ui
-	foreach h $all_heads {
-		if {$h ne $current_branch} {
-			$w.list.l insert end $h
-		}
-	}
-	scrollbar $w.list.sby -command [list $w.list.l yview]
-	pack $w.list.sby -side right -fill y
-	pack $w.list.l -side left -fill both -expand 1
-	pack $w.list -fill both -expand 1 -pady 5 -padx 5
-
-	labelframe $w.validate \
-		-text {Delete Only If} \
-		-font font_ui
-	radiobutton $w.validate.head_r \
-		-text {Merged Into Local Branch:} \
-		-value head \
-		-variable delete_branch_checktype \
-		-font font_ui
-	set mergedlocalm [eval tk_optionMenu $w.validate.head_m \
-		delete_branch_head \
-		$all_heads]
-	$mergedlocalm configure -font font_ui
-	$w.validate.head_m configure -font font_ui
-	grid $w.validate.head_r $w.validate.head_m -sticky w
-	set all_trackings [all_tracking_branches]
-	if {$all_trackings ne {}} {
-		set delete_branch_trackinghead [lindex $all_trackings 0]
-		radiobutton $w.validate.tracking_r \
-			-text {Merged Into Tracking Branch:} \
-			-value tracking \
-			-variable delete_branch_checktype \
-			-font font_ui
-		set mergedtrackm [eval tk_optionMenu $w.validate.tracking_m \
-			delete_branch_trackinghead \
-			$all_trackings]
-		$mergedtrackm configure -font font_ui
-		$w.validate.tracking_m configure -font font_ui
-		grid $w.validate.tracking_r $w.validate.tracking_m -sticky w
-	}
-	radiobutton $w.validate.always_r \
-		-text {Always (Do not perform merge checks)} \
-		-value always \
-		-variable delete_branch_checktype \
-		-font font_ui
-	grid $w.validate.always_r -columnspan 2 -sticky w
-	grid columnconfigure $w.validate 1 -weight 1
-	pack $w.validate -anchor nw -fill x -pady 5 -padx 5
-
-	set delete_branch_head $current_branch
-	set delete_branch_checktype head
-
-	bind $w <Visibility> "grab $w; focus $w"
-	bind $w <Key-Escape> "destroy $w"
-	wm title $w "[appname] ([reponame]): Delete Branch"
-	tkwait window $w
-}
-
-proc switch_branch {new_branch} {
-	global HEAD commit_type current_branch repo_config
-
-	if {![lock_index switch]} return
-
-	# -- Our in memory state should match the repository.
-	#
-	repository_state curType curHEAD curMERGE_HEAD
-	if {[string match amend* $commit_type]
-		&& $curType eq {normal}
-		&& $curHEAD eq $HEAD} {
-	} elseif {$commit_type ne $curType || $HEAD ne $curHEAD} {
-		info_popup {Last scanned state does not match repository state.
-
-Another Git program has modified this repository since the last scan.  A rescan must be performed before the current branch can be changed.
-
-The rescan will be automatically started now.
-}
-		unlock_index
-		rescan {set ui_status_value {Ready.}}
-		return
-	}
-
-	# -- Don't do a pointless switch.
-	#
-	if {$current_branch eq $new_branch} {
-		unlock_index
-		return
-	}
-
-	if {$repo_config(gui.trustmtime) eq {true}} {
-		switch_branch_stage2 {} $new_branch
-	} else {
-		set ui_status_value {Refreshing file status...}
-		set cmd [list git update-index]
-		lappend cmd -q
-		lappend cmd --unmerged
-		lappend cmd --ignore-missing
-		lappend cmd --refresh
-		set fd_rf [open "| $cmd" r]
-		fconfigure $fd_rf -blocking 0 -translation binary
-		fileevent $fd_rf readable \
-			[list switch_branch_stage2 $fd_rf $new_branch]
-	}
-}
-
-proc switch_branch_stage2 {fd_rf new_branch} {
-	global ui_status_value HEAD
-
-	if {$fd_rf ne {}} {
-		read $fd_rf
-		if {![eof $fd_rf]} return
-		close $fd_rf
-	}
-
-	set ui_status_value "Updating working directory to '$new_branch'..."
-	set cmd [list git read-tree]
-	lappend cmd -m
-	lappend cmd -u
-	lappend cmd --exclude-per-directory=.gitignore
-	lappend cmd $HEAD
-	lappend cmd $new_branch
-	set fd_rt [open "| $cmd" r]
-	fconfigure $fd_rt -blocking 0 -translation binary
-	fileevent $fd_rt readable \
-		[list switch_branch_readtree_wait $fd_rt $new_branch]
-}
-
-proc switch_branch_readtree_wait {fd_rt new_branch} {
-	global selected_commit_type commit_type HEAD MERGE_HEAD PARENT
-	global current_branch
-	global ui_comm ui_status_value
-
-	# -- We never get interesting output on stdout; only stderr.
-	#
-	read $fd_rt
-	fconfigure $fd_rt -blocking 1
-	if {![eof $fd_rt]} {
-		fconfigure $fd_rt -blocking 0
-		return
-	}
-
-	# -- The working directory wasn't in sync with the index and
-	#    we'd have to overwrite something to make the switch. A
-	#    merge is required.
-	#
-	if {[catch {close $fd_rt} err]} {
-		regsub {^fatal: } $err {} err
-		warn_popup "File level merge required.
-
-$err
-
-Staying on branch '$current_branch'."
-		set ui_status_value "Aborted checkout of '$new_branch' (file level merging is required)."
-		unlock_index
-		return
-	}
-
-	# -- Update the symbolic ref.  Core git doesn't even check for failure
-	#    here, it Just Works(tm).  If it doesn't we are in some really ugly
-	#    state that is difficult to recover from within git-gui.
-	#
-	if {[catch {git symbolic-ref HEAD "refs/heads/$new_branch"} err]} {
-		error_popup "Failed to set current branch.
-
-This working directory is only partially switched.  We successfully updated your files, but failed to update an internal Git file.
-
-This should not have occurred.  [appname] will now close and give up.
-
-$err"
-		do_quit
-		return
-	}
-
-	# -- Update our repository state.  If we were previously in amend mode
-	#    we need to toss the current buffer and do a full rescan to update
-	#    our file lists.  If we weren't in amend mode our file lists are
-	#    accurate and we can avoid the rescan.
-	#
-	unlock_index
-	set selected_commit_type new
-	if {[string match amend* $commit_type]} {
-		$ui_comm delete 0.0 end
-		$ui_comm edit reset
-		$ui_comm edit modified false
-		rescan {set ui_status_value "Checked out branch '$current_branch'."}
-	} else {
-		repository_state commit_type HEAD MERGE_HEAD
-		set PARENT $HEAD
-		set ui_status_value "Checked out branch '$current_branch'."
-	}
-}
-
-######################################################################
-##
-## remote management
-
-proc load_all_remotes {} {
-	global repo_config
-	global all_remotes tracking_branches
-
-	set all_remotes [list]
-	array unset tracking_branches
-
-	set rm_dir [gitdir remotes]
-	if {[file isdirectory $rm_dir]} {
-		set all_remotes [glob \
-			-types f \
-			-tails \
-			-nocomplain \
-			-directory $rm_dir *]
-
-		foreach name $all_remotes {
-			catch {
-				set fd [open [file join $rm_dir $name] r]
-				while {[gets $fd line] >= 0} {
-					if {![regexp {^Pull:[ 	]*([^:]+):(.+)$} \
-						$line line src dst]} continue
-					if {![regexp ^refs/ $dst]} {
-						set dst "refs/heads/$dst"
-					}
-					set tracking_branches($dst) [list $name $src]
-				}
-				close $fd
-			}
-		}
-	}
-
-	foreach line [array names repo_config remote.*.url] {
-		if {![regexp ^remote\.(.*)\.url\$ $line line name]} continue
-		lappend all_remotes $name
-
-		if {[catch {set fl $repo_config(remote.$name.fetch)}]} {
-			set fl {}
-		}
-		foreach line $fl {
-			if {![regexp {^([^:]+):(.+)$} $line line src dst]} continue
-			if {![regexp ^refs/ $dst]} {
-				set dst "refs/heads/$dst"
-			}
-			set tracking_branches($dst) [list $name $src]
-		}
-	}
-
-	set all_remotes [lsort -unique $all_remotes]
-}
-
-proc populate_fetch_menu {} {
-	global all_remotes repo_config
-
-	set m .mbar.fetch
-	foreach r $all_remotes {
-		set enable 0
-		if {![catch {set a $repo_config(remote.$r.url)}]} {
-			if {![catch {set a $repo_config(remote.$r.fetch)}]} {
-				set enable 1
-			}
-		} else {
-			catch {
-				set fd [open [gitdir remotes $r] r]
-				while {[gets $fd n] >= 0} {
-					if {[regexp {^Pull:[ \t]*([^:]+):} $n]} {
-						set enable 1
-						break
-					}
-				}
-				close $fd
-			}
-		}
-
-		if {$enable} {
-			$m add command \
-				-label "Fetch from $r..." \
-				-command [list fetch_from $r] \
-				-font font_ui
-		}
-	}
-}
-
-proc populate_push_menu {} {
-	global all_remotes repo_config
-
-	set m .mbar.push
-	set fast_count 0
-	foreach r $all_remotes {
-		set enable 0
-		if {![catch {set a $repo_config(remote.$r.url)}]} {
-			if {![catch {set a $repo_config(remote.$r.push)}]} {
-				set enable 1
-			}
-		} else {
-			catch {
-				set fd [open [gitdir remotes $r] r]
-				while {[gets $fd n] >= 0} {
-					if {[regexp {^Push:[ \t]*([^:]+):} $n]} {
-						set enable 1
-						break
-					}
-				}
-				close $fd
-			}
-		}
-
-		if {$enable} {
-			if {!$fast_count} {
-				$m add separator
-			}
-			$m add command \
-				-label "Push to $r..." \
-				-command [list push_to $r] \
-				-font font_ui
-			incr fast_count
-		}
-	}
-}
-
-proc start_push_anywhere_action {w} {
-	global push_urltype push_remote push_url push_thin push_tags
-
-	set r_url {}
-	switch -- $push_urltype {
-	remote {set r_url $push_remote}
-	url {set r_url $push_url}
-	}
-	if {$r_url eq {}} return
-
-	set cmd [list git push]
-	lappend cmd -v
-	if {$push_thin} {
-		lappend cmd --thin
-	}
-	if {$push_tags} {
-		lappend cmd --tags
-	}
-	lappend cmd $r_url
-	set cnt 0
-	foreach i [$w.source.l curselection] {
-		set b [$w.source.l get $i]
-		lappend cmd "refs/heads/$b:refs/heads/$b"
-		incr cnt
-	}
-	if {$cnt == 0} {
-		return
-	} elseif {$cnt == 1} {
-		set unit branch
-	} else {
-		set unit branches
-	}
-
-	set cons [new_console "push $r_url" "Pushing $cnt $unit to $r_url"]
-	console_exec $cons $cmd console_done
-	destroy $w
-}
-
-trace add variable push_remote write \
-	[list radio_selector push_urltype remote]
-
-proc do_push_anywhere {} {
-	global all_heads all_remotes current_branch
-	global push_urltype push_remote push_url push_thin push_tags
-
-	set w .push_setup
-	toplevel $w
-	wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
-
-	label $w.header -text {Push Branches} -font font_uibold
-	pack $w.header -side top -fill x
-
-	frame $w.buttons
-	button $w.buttons.create -text Push \
-		-font font_ui \
-		-default active \
-		-command [list start_push_anywhere_action $w]
-	pack $w.buttons.create -side right
-	button $w.buttons.cancel -text {Cancel} \
-		-font font_ui \
-		-default normal \
-		-command [list destroy $w]
-	pack $w.buttons.cancel -side right -padx 5
-	pack $w.buttons -side bottom -fill x -pady 10 -padx 10
-
-	labelframe $w.source \
-		-text {Source Branches} \
-		-font font_ui
-	listbox $w.source.l \
-		-height 10 \
-		-width 70 \
-		-selectmode extended \
-		-yscrollcommand [list $w.source.sby set] \
-		-font font_ui
-	foreach h $all_heads {
-		$w.source.l insert end $h
-		if {$h eq $current_branch} {
-			$w.source.l select set end
-		}
-	}
-	scrollbar $w.source.sby -command [list $w.source.l yview]
-	pack $w.source.sby -side right -fill y
-	pack $w.source.l -side left -fill both -expand 1
-	pack $w.source -fill both -expand 1 -pady 5 -padx 5
-
-	labelframe $w.dest \
-		-text {Destination Repository} \
-		-font font_ui
-	if {$all_remotes ne {}} {
-		radiobutton $w.dest.remote_r \
-			-text {Remote:} \
-			-value remote \
-			-variable push_urltype \
-			-font font_ui
-		set remmenu [eval tk_optionMenu $w.dest.remote_m push_remote \
-			$all_remotes]
-		$remmenu configure -font font_ui
-		$w.dest.remote_m configure -font font_ui
-		grid $w.dest.remote_r $w.dest.remote_m -sticky w
-		if {[lsearch -sorted -exact $all_remotes origin] != -1} {
-			set push_remote origin
-		} else {
-			set push_remote [lindex $all_remotes 0]
-		}
-		set push_urltype remote
-	} else {
-		set push_urltype url
-	}
-	radiobutton $w.dest.url_r \
-		-text {Arbitrary URL:} \
-		-value url \
-		-variable push_urltype \
-		-font font_ui
-	entry $w.dest.url_t \
-		-borderwidth 1 \
-		-relief sunken \
-		-width 50 \
-		-textvariable push_url \
-		-font font_ui \
-		-validate key \
-		-validatecommand {
-			if {%d == 1 && [regexp {\s} %S]} {return 0}
-			if {%d == 1 && [string length %S] > 0} {
-				set push_urltype url
-			}
-			return 1
-		}
-	grid $w.dest.url_r $w.dest.url_t -sticky we -padx {0 5}
-	grid columnconfigure $w.dest 1 -weight 1
-	pack $w.dest -anchor nw -fill x -pady 5 -padx 5
-
-	labelframe $w.options \
-		-text {Transfer Options} \
-		-font font_ui
-	checkbutton $w.options.thin \
-		-text {Use thin pack (for slow network connections)} \
-		-variable push_thin \
-		-font font_ui
-	grid $w.options.thin -columnspan 2 -sticky w
-	checkbutton $w.options.tags \
-		-text {Include tags} \
-		-variable push_tags \
-		-font font_ui
-	grid $w.options.tags -columnspan 2 -sticky w
-	grid columnconfigure $w.options 1 -weight 1
-	pack $w.options -anchor nw -fill x -pady 5 -padx 5
-
-	set push_url {}
-	set push_thin 0
-	set push_tags 0
-
-	bind $w <Visibility> "grab $w; focus $w.buttons.create"
-	bind $w <Key-Escape> "destroy $w"
-	bind $w <Key-Return> [list start_push_anywhere_action $w]
-	wm title $w "[appname] ([reponame]): Push"
-	tkwait window $w
-}
-
-######################################################################
-##
-## merge
-
-proc can_merge {} {
-	global HEAD commit_type file_states
-
-	if {[string match amend* $commit_type]} {
-		info_popup {Cannot merge while amending.
-
-You must finish amending this commit before starting any type of merge.
-}
-		return 0
-	}
-
-	if {[committer_ident] eq {}} {return 0}
-	if {![lock_index merge]} {return 0}
-
-	# -- Our in memory state should match the repository.
-	#
-	repository_state curType curHEAD curMERGE_HEAD
-	if {$commit_type ne $curType || $HEAD ne $curHEAD} {
-		info_popup {Last scanned state does not match repository state.
-
-Another Git program has modified this repository since the last scan.  A rescan must be performed before a merge can be performed.
-
-The rescan will be automatically started now.
-}
-		unlock_index
-		rescan {set ui_status_value {Ready.}}
-		return 0
-	}
-
-	foreach path [array names file_states] {
-		switch -glob -- [lindex $file_states($path) 0] {
-		_O {
-			continue; # and pray it works!
-		}
-		U? {
-			error_popup "You are in the middle of a conflicted merge.
-
-File [short_path $path] has merge conflicts.
-
-You must resolve them, add the file, and commit to complete the current merge.  Only then can you begin another merge.
-"
-			unlock_index
-			return 0
-		}
-		?? {
-			error_popup "You are in the middle of a change.
-
-File [short_path $path] is modified.
-
-You should complete the current commit before starting a merge.  Doing so will help you abort a failed merge, should the need arise.
-"
-			unlock_index
-			return 0
-		}
-		}
-	}
-
-	return 1
-}
-
-proc visualize_local_merge {w} {
-	set revs {}
-	foreach i [$w.source.l curselection] {
-		lappend revs [$w.source.l get $i]
-	}
-	if {$revs eq {}} return
-	lappend revs --not HEAD
-	do_gitk $revs
-}
-
-proc start_local_merge_action {w} {
-	global HEAD ui_status_value current_branch
-
-	set cmd [list git merge]
-	set names {}
-	set revcnt 0
-	foreach i [$w.source.l curselection] {
-		set b [$w.source.l get $i]
-		lappend cmd $b
-		lappend names $b
-		incr revcnt
-	}
-
-	if {$revcnt == 0} {
-		return
-	} elseif {$revcnt == 1} {
-		set unit branch
-	} elseif {$revcnt <= 15} {
-		set unit branches
-	} else {
-		tk_messageBox \
-			-icon error \
-			-type ok \
-			-title [wm title $w] \
-			-parent $w \
-			-message "Too many branches selected.
-
-You have requested to merge $revcnt branches
-in an octopus merge.  This exceeds Git's
-internal limit of 15 branches per merge.
-
-Please select fewer branches.  To merge more
-than 15 branches, merge the branches in batches.
-"
-		return
-	}
-
-	set msg "Merging $current_branch, [join $names {, }]"
-	set ui_status_value "$msg..."
-	set cons [new_console "Merge" $msg]
-	console_exec $cons $cmd [list finish_merge $revcnt]
-	bind $w <Destroy> {}
-	destroy $w
-}
-
-proc finish_merge {revcnt w ok} {
-	console_done $w $ok
-	if {$ok} {
-		set msg {Merge completed successfully.}
-	} else {
-		if {$revcnt != 1} {
-			info_popup "Octopus merge failed.
-
-Your merge of $revcnt branches has failed.
-
-There are file-level conflicts between the branches which must be resolved manually.
-
-The working directory will now be reset.
-
-You can attempt this merge again by merging only one branch at a time." $w
-
-			set fd [open "| git read-tree --reset -u HEAD" r]
-			fconfigure $fd -blocking 0 -translation binary
-			fileevent $fd readable [list reset_hard_wait $fd]
-			set ui_status_value {Aborting... please wait...}
-			return
-		}
-
-		set msg {Merge failed.  Conflict resolution is required.}
-	}
-	unlock_index
-	rescan [list set ui_status_value $msg]
-}
-
-proc do_local_merge {} {
-	global current_branch
-
-	if {![can_merge]} return
-
-	set w .merge_setup
-	toplevel $w
-	wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
-
-	label $w.header \
-		-text "Merge Into $current_branch" \
-		-font font_uibold
-	pack $w.header -side top -fill x
-
-	frame $w.buttons
-	button $w.buttons.visualize -text Visualize \
-		-font font_ui \
-		-command [list visualize_local_merge $w]
-	pack $w.buttons.visualize -side left
-	button $w.buttons.create -text Merge \
-		-font font_ui \
-		-command [list start_local_merge_action $w]
-	pack $w.buttons.create -side right
-	button $w.buttons.cancel -text {Cancel} \
-		-font font_ui \
-		-command [list destroy $w]
-	pack $w.buttons.cancel -side right -padx 5
-	pack $w.buttons -side bottom -fill x -pady 10 -padx 10
-
-	labelframe $w.source \
-		-text {Source Branches} \
-		-font font_ui
-	listbox $w.source.l \
-		-height 10 \
-		-width 70 \
-		-selectmode extended \
-		-yscrollcommand [list $w.source.sby set] \
-		-font font_ui
-	scrollbar $w.source.sby -command [list $w.source.l yview]
-	pack $w.source.sby -side right -fill y
-	pack $w.source.l -side left -fill both -expand 1
-	pack $w.source -fill both -expand 1 -pady 5 -padx 5
-
-	set cmd [list git for-each-ref]
-	lappend cmd {--format=%(objectname) %(*objectname) %(refname)}
-	lappend cmd refs/heads
-	lappend cmd refs/remotes
-	lappend cmd refs/tags
-	set fr_fd [open "| $cmd" r]
-	fconfigure $fr_fd -translation binary
-	while {[gets $fr_fd line] > 0} {
-		set line [split $line { }]
-		set sha1([lindex $line 0]) [lindex $line 2]
-		set sha1([lindex $line 1]) [lindex $line 2]
-	}
-	close $fr_fd
-
-	set to_show {}
-	set fr_fd [open "| git rev-list --all --not HEAD"]
-	while {[gets $fr_fd line] > 0} {
-		if {[catch {set ref $sha1($line)}]} continue
-		regsub ^refs/(heads|remotes|tags)/ $ref {} ref
-		lappend to_show $ref
-	}
-	close $fr_fd
-
-	foreach ref [lsort -unique $to_show] {
-		$w.source.l insert end $ref
-	}
-
-	bind $w <Visibility> "grab $w"
-	bind $w <Key-Escape> "unlock_index;destroy $w"
-	bind $w <Destroy> unlock_index
-	wm title $w "[appname] ([reponame]): Merge"
-	tkwait window $w
-}
-
-proc do_reset_hard {} {
-	global HEAD commit_type file_states
-
-	if {[string match amend* $commit_type]} {
-		info_popup {Cannot abort while amending.
-
-You must finish amending this commit.
-}
-		return
-	}
-
-	if {![lock_index abort]} return
-
-	if {[string match *merge* $commit_type]} {
-		set op merge
-	} else {
-		set op commit
-	}
-
-	if {[ask_popup "Abort $op?
-
-Aborting the current $op will cause *ALL* uncommitted changes to be lost.
-
-Continue with aborting the current $op?"] eq {yes}} {
-		set fd [open "| git read-tree --reset -u HEAD" r]
-		fconfigure $fd -blocking 0 -translation binary
-		fileevent $fd readable [list reset_hard_wait $fd]
-		set ui_status_value {Aborting... please wait...}
-	} else {
-		unlock_index
-	}
-}
-
-proc reset_hard_wait {fd} {
-	global ui_comm
-
-	read $fd
-	if {[eof $fd]} {
-		close $fd
-		unlock_index
-
-		$ui_comm delete 0.0 end
-		$ui_comm edit modified false
-
-		catch {file delete [gitdir MERGE_HEAD]}
-		catch {file delete [gitdir rr-cache MERGE_RR]}
-		catch {file delete [gitdir SQUASH_MSG]}
-		catch {file delete [gitdir MERGE_MSG]}
-		catch {file delete [gitdir GITGUI_MSG]}
-
-		rescan {set ui_status_value {Abort completed.  Ready.}}
-	}
-}
-
-######################################################################
-##
-## browser
-
-set next_browser_id 0
-
-proc new_browser {commit} {
-	global next_browser_id cursor_ptr M1B
-	global browser_commit browser_status browser_stack browser_path browser_busy
-
-	if {[winfo ismapped .]} {
-		set w .browser[incr next_browser_id]
-		set tl $w
-		toplevel $w
-	} else {
-		set w {}
-		set tl .
-	}
-	set w_list $w.list.l
-	set browser_commit($w_list) $commit
-	set browser_status($w_list) {Starting...}
-	set browser_stack($w_list) {}
-	set browser_path($w_list) $browser_commit($w_list):
-	set browser_busy($w_list) 1
-
-	label $w.path -textvariable browser_path($w_list) \
-		-anchor w \
-		-justify left \
-		-borderwidth 1 \
-		-relief sunken \
-		-font font_uibold
-	pack $w.path -anchor w -side top -fill x
-
-	frame $w.list
-	text $w_list -background white -borderwidth 0 \
-		-cursor $cursor_ptr \
-		-state disabled \
-		-wrap none \
-		-height 20 \
-		-width 70 \
-		-xscrollcommand [list $w.list.sbx set] \
-		-yscrollcommand [list $w.list.sby set] \
-		-font font_ui
-	$w_list tag conf in_sel \
-		-background [$w_list cget -foreground] \
-		-foreground [$w_list cget -background]
-	scrollbar $w.list.sbx -orient h -command [list $w_list xview]
-	scrollbar $w.list.sby -orient v -command [list $w_list yview]
-	pack $w.list.sbx -side bottom -fill x
-	pack $w.list.sby -side right -fill y
-	pack $w_list -side left -fill both -expand 1
-	pack $w.list -side top -fill both -expand 1
-
-	label $w.status -textvariable browser_status($w_list) \
-		-anchor w \
-		-justify left \
-		-borderwidth 1 \
-		-relief sunken \
-		-font font_ui
-	pack $w.status -anchor w -side bottom -fill x
-
-	bind $w_list <Button-1>        "browser_click 0 $w_list @%x,%y;break"
-	bind $w_list <Double-Button-1> "browser_click 1 $w_list @%x,%y;break"
-	bind $w_list <$M1B-Up>         "browser_parent $w_list;break"
-	bind $w_list <$M1B-Left>       "browser_parent $w_list;break"
-	bind $w_list <Up>              "browser_move -1 $w_list;break"
-	bind $w_list <Down>            "browser_move 1 $w_list;break"
-	bind $w_list <$M1B-Right>      "browser_enter $w_list;break"
-	bind $w_list <Return>          "browser_enter $w_list;break"
-	bind $w_list <Prior>           "browser_page -1 $w_list;break"
-	bind $w_list <Next>            "browser_page 1 $w_list;break"
-	bind $w_list <Left>            break
-	bind $w_list <Right>           break
-
-	bind $tl <Visibility> "focus $w"
-	bind $tl <Destroy> "
-		array unset browser_buffer $w_list
-		array unset browser_files $w_list
-		array unset browser_status $w_list
-		array unset browser_stack $w_list
-		array unset browser_path $w_list
-		array unset browser_commit $w_list
-		array unset browser_busy $w_list
-	"
-	wm title $tl "[appname] ([reponame]): File Browser"
-	ls_tree $w_list $browser_commit($w_list) {}
-}
-
-proc browser_move {dir w} {
-	global browser_files browser_busy
-
-	if {$browser_busy($w)} return
-	set lno [lindex [split [$w index in_sel.first] .] 0]
-	incr lno $dir
-	if {[lindex $browser_files($w) [expr {$lno - 1}]] ne {}} {
-		$w tag remove in_sel 0.0 end
-		$w tag add in_sel $lno.0 [expr {$lno + 1}].0
-		$w see $lno.0
-	}
-}
-
-proc browser_page {dir w} {
-	global browser_files browser_busy
-
-	if {$browser_busy($w)} return
-	$w yview scroll $dir pages
-	set lno [expr {int(
-		  [lindex [$w yview] 0]
-		* [llength $browser_files($w)]
-		+ 1)}]
-	if {[lindex $browser_files($w) [expr {$lno - 1}]] ne {}} {
-		$w tag remove in_sel 0.0 end
-		$w tag add in_sel $lno.0 [expr {$lno + 1}].0
-		$w see $lno.0
-	}
-}
-
-proc browser_parent {w} {
-	global browser_files browser_status browser_path
-	global browser_stack browser_busy
-
-	if {$browser_busy($w)} return
-	set info [lindex $browser_files($w) 0]
-	if {[lindex $info 0] eq {parent}} {
-		set parent [lindex $browser_stack($w) end-1]
-		set browser_stack($w) [lrange $browser_stack($w) 0 end-2]
-		if {$browser_stack($w) eq {}} {
-			regsub {:.*$} $browser_path($w) {:} browser_path($w)
-		} else {
-			regsub {/[^/]+$} $browser_path($w) {} browser_path($w)
-		}
-		set browser_status($w) "Loading $browser_path($w)..."
-		ls_tree $w [lindex $parent 0] [lindex $parent 1]
-	}
-}
-
-proc browser_enter {w} {
-	global browser_files browser_status browser_path
-	global browser_commit browser_stack browser_busy
-
-	if {$browser_busy($w)} return
-	set lno [lindex [split [$w index in_sel.first] .] 0]
-	set info [lindex $browser_files($w) [expr {$lno - 1}]]
-	if {$info ne {}} {
-		switch -- [lindex $info 0] {
-		parent {
-			browser_parent $w
-		}
-		tree {
-			set name [lindex $info 2]
-			set escn [escape_path $name]
-			set browser_status($w) "Loading $escn..."
-			append browser_path($w) $escn
-			ls_tree $w [lindex $info 1] $name
-		}
-		blob {
-			set name [lindex $info 2]
-			set p {}
-			foreach n $browser_stack($w) {
-				append p [lindex $n 1]
-			}
-			append p $name
-			show_blame $browser_commit($w) $p
-		}
-		}
-	}
-}
-
-proc browser_click {was_double_click w pos} {
-	global browser_files browser_busy
-
-	if {$browser_busy($w)} return
-	set lno [lindex [split [$w index $pos] .] 0]
-	focus $w
-
-	if {[lindex $browser_files($w) [expr {$lno - 1}]] ne {}} {
-		$w tag remove in_sel 0.0 end
-		$w tag add in_sel $lno.0 [expr {$lno + 1}].0
-		if {$was_double_click} {
-			browser_enter $w
-		}
-	}
-}
-
-proc ls_tree {w tree_id name} {
-	global browser_buffer browser_files browser_stack browser_busy
-
-	set browser_buffer($w) {}
-	set browser_files($w) {}
-	set browser_busy($w) 1
-
-	$w conf -state normal
-	$w tag remove in_sel 0.0 end
-	$w delete 0.0 end
-	if {$browser_stack($w) ne {}} {
-		$w image create end \
-			-align center -padx 5 -pady 1 \
-			-name icon0 \
-			-image file_uplevel
-		$w insert end {[Up To Parent]}
-		lappend browser_files($w) parent
-	}
-	lappend browser_stack($w) [list $tree_id $name]
-	$w conf -state disabled
-
-	set cmd [list git ls-tree -z $tree_id]
-	set fd [open "| $cmd" r]
-	fconfigure $fd -blocking 0 -translation binary -encoding binary
-	fileevent $fd readable [list read_ls_tree $fd $w]
-}
-
-proc read_ls_tree {fd w} {
-	global browser_buffer browser_files browser_status browser_busy
-
-	if {![winfo exists $w]} {
-		catch {close $fd}
-		return
-	}
-
-	append browser_buffer($w) [read $fd]
-	set pck [split $browser_buffer($w) "\0"]
-	set browser_buffer($w) [lindex $pck end]
-
-	set n [llength $browser_files($w)]
-	$w conf -state normal
-	foreach p [lrange $pck 0 end-1] {
-		set info [split $p "\t"]
-		set path [lindex $info 1]
-		set info [split [lindex $info 0] { }]
-		set type [lindex $info 1]
-		set object [lindex $info 2]
-
-		switch -- $type {
-		blob {
-			set image file_mod
-		}
-		tree {
-			set image file_dir
-			append path /
-		}
-		default {
-			set image file_question
-		}
-		}
-
-		if {$n > 0} {$w insert end "\n"}
-		$w image create end \
-			-align center -padx 5 -pady 1 \
-			-name icon[incr n] \
-			-image $image
-		$w insert end [escape_path $path]
-		lappend browser_files($w) [list $type $object $path]
-	}
-	$w conf -state disabled
-
-	if {[eof $fd]} {
-		close $fd
-		set browser_status($w) Ready.
-		set browser_busy($w) 0
-		array unset browser_buffer $w
-		if {$n > 0} {
-			$w tag add in_sel 1.0 2.0
-			focus -force $w
-		}
-	}
-}
-
-proc show_blame {commit path} {
-	global next_browser_id blame_status blame_data
-
-	if {[winfo ismapped .]} {
-		set w .browser[incr next_browser_id]
-		set tl $w
-		toplevel $w
-	} else {
-		set w {}
-		set tl .
-	}
-	set blame_status($w) {Loading current file content...}
-
-	label $w.path -text "$commit:$path" \
-		-anchor w \
-		-justify left \
-		-borderwidth 1 \
-		-relief sunken \
-		-font font_uibold
-	pack $w.path -side top -fill x
-
-	frame $w.out
-	text $w.out.loaded_t \
-		-background white -borderwidth 0 \
-		-state disabled \
-		-wrap none \
-		-height 40 \
-		-width 1 \
-		-font font_diff
-	$w.out.loaded_t tag conf annotated -background grey
-
-	text $w.out.linenumber_t \
-		-background white -borderwidth 0 \
-		-state disabled \
-		-wrap none \
-		-height 40 \
-		-width 5 \
-		-font font_diff
-	$w.out.linenumber_t tag conf linenumber -justify right
-
-	text $w.out.file_t \
-		-background white -borderwidth 0 \
-		-state disabled \
-		-wrap none \
-		-height 40 \
-		-width 80 \
-		-xscrollcommand [list $w.out.sbx set] \
-		-font font_diff
-
-	scrollbar $w.out.sbx -orient h -command [list $w.out.file_t xview]
-	scrollbar $w.out.sby -orient v \
-		-command [list scrollbar2many [list \
-		$w.out.loaded_t \
-		$w.out.linenumber_t \
-		$w.out.file_t \
-		] yview]
-	grid \
-		$w.out.linenumber_t \
-		$w.out.loaded_t \
-		$w.out.file_t \
-		$w.out.sby \
-		-sticky nsew
-	grid conf $w.out.sbx -column 2 -sticky we
-	grid columnconfigure $w.out 2 -weight 1
-	grid rowconfigure $w.out 0 -weight 1
-	pack $w.out -fill both -expand 1
-
-	label $w.status -textvariable blame_status($w) \
-		-anchor w \
-		-justify left \
-		-borderwidth 1 \
-		-relief sunken \
-		-font font_ui
-	pack $w.status -side bottom -fill x
-
-	frame $w.cm
-	text $w.cm.t \
-		-background white -borderwidth 0 \
-		-state disabled \
-		-wrap none \
-		-height 10 \
-		-width 80 \
-		-xscrollcommand [list $w.cm.sbx set] \
-		-yscrollcommand [list $w.cm.sby set] \
-		-font font_diff
-	scrollbar $w.cm.sbx -orient h -command [list $w.cm.t xview]
-	scrollbar $w.cm.sby -orient v -command [list $w.cm.t yview]
-	pack $w.cm.sby -side right -fill y
-	pack $w.cm.sbx -side bottom -fill x
-	pack $w.cm.t -expand 1 -fill both
-	pack $w.cm -side bottom -fill x
-
-	menu $w.ctxm -tearoff 0
-	$w.ctxm add command -label "Copy Commit" \
-		-font font_ui \
-		-command "blame_copycommit $w \$cursorW @\$cursorX,\$cursorY"
-
-	foreach i [list \
-		$w.out.loaded_t \
-		$w.out.linenumber_t \
-		$w.out.file_t] {
-		$i tag conf in_sel \
-			-background [$i cget -foreground] \
-			-foreground [$i cget -background]
-		$i conf -yscrollcommand \
-			[list many2scrollbar [list \
-			$w.out.loaded_t \
-			$w.out.linenumber_t \
-			$w.out.file_t \
-			] yview $w.out.sby]
-		bind $i <Button-1> "
-			blame_click {$w} \\
-				$w.cm.t \\
-				$w.out.linenumber_t \\
-				$w.out.file_t \\
-				$i @%x,%y
-			focus $i
-		"
-		bind_button3 $i "
-			set cursorX %x
-			set cursorY %y
-			set cursorW %W
-			tk_popup $w.ctxm %X %Y
-		"
-	}
-
-	bind $w.cm.t <Button-1> "focus $w.cm.t"
-	bind $tl <Visibility> "focus $tl"
-	bind $tl <Destroy> "
-		array unset blame_status {$w}
-		array unset blame_data $w,*
-	"
-	wm title $tl "[appname] ([reponame]): File Viewer"
-
-	set blame_data($w,commit_count) 0
-	set blame_data($w,commit_list) {}
-	set blame_data($w,total_lines) 0
-	set blame_data($w,blame_lines) 0
-	set blame_data($w,highlight_commit) {}
-	set blame_data($w,highlight_line) -1
-
-	set cmd [list git cat-file blob "$commit:$path"]
-	set fd [open "| $cmd" r]
-	fconfigure $fd -blocking 0 -translation lf -encoding binary
-	fileevent $fd readable [list read_blame_catfile \
-		$fd $w $commit $path \
-		$w.cm.t $w.out.loaded_t $w.out.linenumber_t $w.out.file_t]
-}
-
-proc read_blame_catfile {fd w commit path w_cmit w_load w_line w_file} {
-	global blame_status blame_data
-
-	if {![winfo exists $w_file]} {
-		catch {close $fd}
-		return
-	}
-
-	set n $blame_data($w,total_lines)
-	$w_load conf -state normal
-	$w_line conf -state normal
-	$w_file conf -state normal
-	while {[gets $fd line] >= 0} {
-		regsub "\r\$" $line {} line
-		incr n
-		$w_load insert end "\n"
-		$w_line insert end "$n\n" linenumber
-		$w_file insert end "$line\n"
-	}
-	$w_load conf -state disabled
-	$w_line conf -state disabled
-	$w_file conf -state disabled
-	set blame_data($w,total_lines) $n
-
-	if {[eof $fd]} {
-		close $fd
-		blame_incremental_status $w
-		set cmd [list git blame -M -C --incremental]
-		lappend cmd $commit -- $path
-		set fd [open "| $cmd" r]
-		fconfigure $fd -blocking 0 -translation lf -encoding binary
-		fileevent $fd readable [list read_blame_incremental $fd $w \
-			$w_load $w_cmit $w_line $w_file]
-	}
-}
-
-proc read_blame_incremental {fd w w_load w_cmit w_line w_file} {
-	global blame_status blame_data
-
-	if {![winfo exists $w_file]} {
-		catch {close $fd}
-		return
-	}
-
-	while {[gets $fd line] >= 0} {
-		if {[regexp {^([a-z0-9]{40}) (\d+) (\d+) (\d+)$} $line line \
-			cmit original_line final_line line_count]} {
-			set blame_data($w,commit) $cmit
-			set blame_data($w,original_line) $original_line
-			set blame_data($w,final_line) $final_line
-			set blame_data($w,line_count) $line_count
-
-			if {[catch {set g $blame_data($w,$cmit,order)}]} {
-				$w_line tag conf g$cmit
-				$w_file tag conf g$cmit
-				$w_line tag raise in_sel
-				$w_file tag raise in_sel
-				$w_file tag raise sel
-				set blame_data($w,$cmit,order) $blame_data($w,commit_count)
-				incr blame_data($w,commit_count)
-				lappend blame_data($w,commit_list) $cmit
-			}
-		} elseif {[string match {filename *} $line]} {
-			set file [string range $line 9 end]
-			set n $blame_data($w,line_count)
-			set lno $blame_data($w,final_line)
-			set cmit $blame_data($w,commit)
-
-			while {$n > 0} {
-				if {[catch {set g g$blame_data($w,line$lno,commit)}]} {
-					$w_load tag add annotated $lno.0 "$lno.0 lineend + 1c"
-				} else {
-					$w_line tag remove g$g $lno.0 "$lno.0 lineend + 1c"
-					$w_file tag remove g$g $lno.0 "$lno.0 lineend + 1c"
-				}
-
-				set blame_data($w,line$lno,commit) $cmit
-				set blame_data($w,line$lno,file) $file
-				$w_line tag add g$cmit $lno.0 "$lno.0 lineend + 1c"
-				$w_file tag add g$cmit $lno.0 "$lno.0 lineend + 1c"
-
-				if {$blame_data($w,highlight_line) == -1} {
-					if {[lindex [$w_file yview] 0] == 0} {
-						$w_file see $lno.0
-						blame_showcommit $w $w_cmit $w_line $w_file $lno
-					}
-				} elseif {$blame_data($w,highlight_line) == $lno} {
-					blame_showcommit $w $w_cmit $w_line $w_file $lno
-				}
-
-				incr n -1
-				incr lno
-				incr blame_data($w,blame_lines)
-			}
-
-			set hc $blame_data($w,highlight_commit)
-			if {$hc ne {}
-				&& [expr {$blame_data($w,$hc,order) + 1}]
-					== $blame_data($w,$cmit,order)} {
-				blame_showcommit $w $w_cmit $w_line $w_file \
-					$blame_data($w,highlight_line)
-			}
-		} elseif {[regexp {^([a-z-]+) (.*)$} $line line header data]} {
-			set blame_data($w,$blame_data($w,commit),$header) $data
-		}
-	}
-
-	if {[eof $fd]} {
-		close $fd
-		set blame_status($w) {Annotation complete.}
-	} else {
-		blame_incremental_status $w
-	}
-}
-
-proc blame_incremental_status {w} {
-	global blame_status blame_data
-
-	set have  $blame_data($w,blame_lines)
-	set total $blame_data($w,total_lines)
-	set pdone 0
-	if {$total} {set pdone [expr {100 * $have / $total}]}
-
-	set blame_status($w) [format \
-		"Loading annotations... %i of %i lines annotated (%2i%%)" \
-		$have $total $pdone]
-}
-
-proc blame_click {w w_cmit w_line w_file cur_w pos} {
-	set lno [lindex [split [$cur_w index $pos] .] 0]
-	if {$lno eq {}} return
-
-	$w_line tag remove in_sel 0.0 end
-	$w_file tag remove in_sel 0.0 end
-	$w_line tag add in_sel $lno.0 "$lno.0 + 1 line"
-	$w_file tag add in_sel $lno.0 "$lno.0 + 1 line"
-
-	blame_showcommit $w $w_cmit $w_line $w_file $lno
-}
-
-set blame_colors {
-	#ff4040
-	#ff40ff
-	#4040ff
-}
-
-proc blame_showcommit {w w_cmit w_line w_file lno} {
-	global blame_colors blame_data repo_config
-
-	set cmit $blame_data($w,highlight_commit)
-	if {$cmit ne {}} {
-		set idx $blame_data($w,$cmit,order)
-		set i 0
-		foreach c $blame_colors {
-			set h [lindex $blame_data($w,commit_list) [expr {$idx - 1 + $i}]]
-			$w_line tag conf g$h -background white
-			$w_file tag conf g$h -background white
-			incr i
-		}
-	}
-
-	$w_cmit conf -state normal
-	$w_cmit delete 0.0 end
-	if {[catch {set cmit $blame_data($w,line$lno,commit)}]} {
-		set cmit {}
-		$w_cmit insert end "Loading annotation..."
-	} else {
-		set idx $blame_data($w,$cmit,order)
-		set i 0
-		foreach c $blame_colors {
-			set h [lindex $blame_data($w,commit_list) [expr {$idx - 1 + $i}]]
-			$w_line tag conf g$h -background $c
-			$w_file tag conf g$h -background $c
-			incr i
-		}
-
-		set author_name {}
-		set author_email {}
-		set author_time {}
-		catch {set author_name $blame_data($w,$cmit,author)}
-		catch {set author_email $blame_data($w,$cmit,author-mail)}
-		catch {set author_time [clock format $blame_data($w,$cmit,author-time)]}
-
-		set committer_name {}
-		set committer_email {}
-		set committer_time {}
-		catch {set committer_name $blame_data($w,$cmit,committer)}
-		catch {set committer_email $blame_data($w,$cmit,committer-mail)}
-		catch {set committer_time [clock format $blame_data($w,$cmit,committer-time)]}
-
-		if {[catch {set msg $blame_data($w,$cmit,message)}]} {
-			set msg {}
-			catch {
-				set fd [open "| git cat-file commit $cmit" r]
-				fconfigure $fd -encoding binary -translation lf
-				if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
-					set enc utf-8
-				}
-				while {[gets $fd line] > 0} {
-					if {[string match {encoding *} $line]} {
-						set enc [string tolower [string range $line 9 end]]
-					}
-				}
-				set msg [encoding convertfrom $enc [read $fd]]
-				set msg [string trim $msg]
-				close $fd
-
-				set author_name [encoding convertfrom $enc $author_name]
-				set committer_name [encoding convertfrom $enc $committer_name]
-
-				set blame_data($w,$cmit,author) $author_name
-				set blame_data($w,$cmit,committer) $committer_name
-			}
-			set blame_data($w,$cmit,message) $msg
-		}
-
-		$w_cmit insert end "commit $cmit\n"
-		$w_cmit insert end "Author: $author_name $author_email $author_time\n"
-		$w_cmit insert end "Committer: $committer_name $committer_email $committer_time\n"
-		$w_cmit insert end "Original File: [escape_path $blame_data($w,line$lno,file)]\n"
-		$w_cmit insert end "\n"
-		$w_cmit insert end $msg
-	}
-	$w_cmit conf -state disabled
-
-	set blame_data($w,highlight_line) $lno
-	set blame_data($w,highlight_commit) $cmit
-}
-
-proc blame_copycommit {w i pos} {
-	global blame_data
-	set lno [lindex [split [$i index $pos] .] 0]
-	if {![catch {set commit $blame_data($w,line$lno,commit)}]} {
-		clipboard clear
-		clipboard append \
-			-format STRING \
-			-type STRING \
-			-- $commit
-	}
-}
-
 ######################################################################
 ##
 ## icons
@@ -3902,235 +973,6 @@ proc incr_font_size {font {amt 1}} {
 	font configure ${font}bold -size $sz
 }
 
-proc hook_failed_popup {hook msg} {
-	set w .hookfail
-	toplevel $w
-
-	frame $w.m
-	label $w.m.l1 -text "$hook hook failed:" \
-		-anchor w \
-		-justify left \
-		-font font_uibold
-	text $w.m.t \
-		-background white -borderwidth 1 \
-		-relief sunken \
-		-width 80 -height 10 \
-		-font font_diff \
-		-yscrollcommand [list $w.m.sby set]
-	label $w.m.l2 \
-		-text {You must correct the above errors before committing.} \
-		-anchor w \
-		-justify left \
-		-font font_uibold
-	scrollbar $w.m.sby -command [list $w.m.t yview]
-	pack $w.m.l1 -side top -fill x
-	pack $w.m.l2 -side bottom -fill x
-	pack $w.m.sby -side right -fill y
-	pack $w.m.t -side left -fill both -expand 1
-	pack $w.m -side top -fill both -expand 1 -padx 5 -pady 10
-
-	$w.m.t insert 1.0 $msg
-	$w.m.t conf -state disabled
-
-	button $w.ok -text OK \
-		-width 15 \
-		-font font_ui \
-		-command "destroy $w"
-	pack $w.ok -side bottom -anchor e -pady 10 -padx 10
-
-	bind $w <Visibility> "grab $w; focus $w"
-	bind $w <Key-Return> "destroy $w"
-	wm title $w "[appname] ([reponame]): error"
-	tkwait window $w
-}
-
-set next_console_id 0
-
-proc new_console {short_title long_title} {
-	global next_console_id console_data
-	set w .console[incr next_console_id]
-	set console_data($w) [list $short_title $long_title]
-	return [console_init $w]
-}
-
-proc console_init {w} {
-	global console_cr console_data M1B
-
-	set console_cr($w) 1.0
-	toplevel $w
-	frame $w.m
-	label $w.m.l1 -text "[lindex $console_data($w) 1]:" \
-		-anchor w \
-		-justify left \
-		-font font_uibold
-	text $w.m.t \
-		-background white -borderwidth 1 \
-		-relief sunken \
-		-width 80 -height 10 \
-		-font font_diff \
-		-state disabled \
-		-yscrollcommand [list $w.m.sby set]
-	label $w.m.s -text {Working... please wait...} \
-		-anchor w \
-		-justify left \
-		-font font_uibold
-	scrollbar $w.m.sby -command [list $w.m.t yview]
-	pack $w.m.l1 -side top -fill x
-	pack $w.m.s -side bottom -fill x
-	pack $w.m.sby -side right -fill y
-	pack $w.m.t -side left -fill both -expand 1
-	pack $w.m -side top -fill both -expand 1 -padx 5 -pady 10
-
-	menu $w.ctxm -tearoff 0
-	$w.ctxm add command -label "Copy" \
-		-font font_ui \
-		-command "tk_textCopy $w.m.t"
-	$w.ctxm add command -label "Select All" \
-		-font font_ui \
-		-command "focus $w.m.t;$w.m.t tag add sel 0.0 end"
-	$w.ctxm add command -label "Copy All" \
-		-font font_ui \
-		-command "
-			$w.m.t tag add sel 0.0 end
-			tk_textCopy $w.m.t
-			$w.m.t tag remove sel 0.0 end
-		"
-
-	button $w.ok -text {Close} \
-		-font font_ui \
-		-state disabled \
-		-command "destroy $w"
-	pack $w.ok -side bottom -anchor e -pady 10 -padx 10
-
-	bind_button3 $w.m.t "tk_popup $w.ctxm %X %Y"
-	bind $w.m.t <$M1B-Key-a> "$w.m.t tag add sel 0.0 end;break"
-	bind $w.m.t <$M1B-Key-A> "$w.m.t tag add sel 0.0 end;break"
-	bind $w <Visibility> "focus $w"
-	wm title $w "[appname] ([reponame]): [lindex $console_data($w) 0]"
-	return $w
-}
-
-proc console_exec {w cmd after} {
-	# -- Cygwin's Tcl tosses the enviroment when we exec our child.
-	#    But most users need that so we have to relogin. :-(
-	#
-	if {[is_Cygwin]} {
-		set cmd [list sh --login -c "cd \"[pwd]\" && [join $cmd { }]"]
-	}
-
-	# -- Tcl won't let us redirect both stdout and stderr to
-	#    the same pipe.  So pass it through cat...
-	#
-	set cmd [concat | $cmd |& cat]
-
-	set fd_f [open $cmd r]
-	fconfigure $fd_f -blocking 0 -translation binary
-	fileevent $fd_f readable [list console_read $w $fd_f $after]
-}
-
-proc console_read {w fd after} {
-	global console_cr
-
-	set buf [read $fd]
-	if {$buf ne {}} {
-		if {![winfo exists $w]} {console_init $w}
-		$w.m.t conf -state normal
-		set c 0
-		set n [string length $buf]
-		while {$c < $n} {
-			set cr [string first "\r" $buf $c]
-			set lf [string first "\n" $buf $c]
-			if {$cr < 0} {set cr [expr {$n + 1}]}
-			if {$lf < 0} {set lf [expr {$n + 1}]}
-
-			if {$lf < $cr} {
-				$w.m.t insert end [string range $buf $c $lf]
-				set console_cr($w) [$w.m.t index {end -1c}]
-				set c $lf
-				incr c
-			} else {
-				$w.m.t delete $console_cr($w) end
-				$w.m.t insert end "\n"
-				$w.m.t insert end [string range $buf $c $cr]
-				set c $cr
-				incr c
-			}
-		}
-		$w.m.t conf -state disabled
-		$w.m.t see end
-	}
-
-	fconfigure $fd -blocking 1
-	if {[eof $fd]} {
-		if {[catch {close $fd}]} {
-			set ok 0
-		} else {
-			set ok 1
-		}
-		uplevel #0 $after $w $ok
-		return
-	}
-	fconfigure $fd -blocking 0
-}
-
-proc console_chain {cmdlist w {ok 1}} {
-	if {$ok} {
-		if {[llength $cmdlist] == 0} {
-			console_done $w $ok
-			return
-		}
-
-		set cmd [lindex $cmdlist 0]
-		set cmdlist [lrange $cmdlist 1 end]
-
-		if {[lindex $cmd 0] eq {console_exec}} {
-			console_exec $w \
-				[lindex $cmd 1] \
-				[list console_chain $cmdlist]
-		} else {
-			uplevel #0 $cmd $cmdlist $w $ok
-		}
-	} else {
-		console_done $w $ok
-	}
-}
-
-proc console_done {args} {
-	global console_cr console_data
-
-	switch -- [llength $args] {
-	2 {
-		set w [lindex $args 0]
-		set ok [lindex $args 1]
-	}
-	3 {
-		set w [lindex $args 1]
-		set ok [lindex $args 2]
-	}
-	default {
-		error "wrong number of args: console_done ?ignored? w ok"
-	}
-	}
-
-	if {$ok} {
-		if {[winfo exists $w]} {
-			$w.m.s conf -background green -text {Success}
-			$w.ok conf -state normal
-			focus $w.ok
-		}
-	} else {
-		if {![winfo exists $w]} {
-			console_init $w
-		}
-		$w.m.s conf -background red -text {Error: Command Failed}
-		$w.ok conf -state normal
-		focus $w.ok
-	}
-
-	array unset console_cr $w
-	array unset console_data $w
-}
-
 ######################################################################
 ##
 ## ui commands
@@ -4162,96 +1004,6 @@ proc do_gitk {revs} {
 	}
 }
 
-proc do_stats {} {
-	set fd [open "| git count-objects -v" r]
-	while {[gets $fd line] > 0} {
-		if {[regexp {^([^:]+): (\d+)$} $line _ name value]} {
-			set stats($name) $value
-		}
-	}
-	close $fd
-
-	set packed_sz 0
-	foreach p [glob -directory [gitdir objects pack] \
-		-type f \
-		-nocomplain -- *] {
-		incr packed_sz [file size $p]
-	}
-	if {$packed_sz > 0} {
-		set stats(size-pack) [expr {$packed_sz / 1024}]
-	}
-
-	set w .stats_view
-	toplevel $w
-	wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
-
-	label $w.header -text {Database Statistics} \
-		-font font_uibold
-	pack $w.header -side top -fill x
-
-	frame $w.buttons -border 1
-	button $w.buttons.close -text Close \
-		-font font_ui \
-		-default active \
-		-command [list destroy $w]
-	button $w.buttons.gc -text {Compress Database} \
-		-font font_ui \
-		-default normal \
-		-command "destroy $w;do_gc"
-	pack $w.buttons.close -side right
-	pack $w.buttons.gc -side left
-	pack $w.buttons -side bottom -fill x -pady 10 -padx 10
-
-	frame $w.stat -borderwidth 1 -relief solid
-	foreach s {
-		{count           {Number of loose objects}}
-		{size            {Disk space used by loose objects} { KiB}}
-		{in-pack         {Number of packed objects}}
-		{packs           {Number of packs}}
-		{size-pack       {Disk space used by packed objects} { KiB}}
-		{prune-packable  {Packed objects waiting for pruning}}
-		{garbage         {Garbage files}}
-		} {
-		set name [lindex $s 0]
-		set label [lindex $s 1]
-		if {[catch {set value $stats($name)}]} continue
-		if {[llength $s] > 2} {
-			set value "$value[lindex $s 2]"
-		}
-
-		label $w.stat.l_$name -text "$label:" -anchor w -font font_ui
-		label $w.stat.v_$name -text $value -anchor w -font font_ui
-		grid $w.stat.l_$name $w.stat.v_$name -sticky we -padx {0 5}
-	}
-	pack $w.stat -pady 10 -padx 10
-
-	bind $w <Visibility> "grab $w; focus $w.buttons.close"
-	bind $w <Key-Escape> [list destroy $w]
-	bind $w <Key-Return> [list destroy $w]
-	wm title $w "[appname] ([reponame]): Database Statistics"
-	tkwait window $w
-}
-
-proc do_gc {} {
-	set w [new_console {gc} {Compressing the object database}]
-	console_chain {
-		{console_exec {git pack-refs --prune}}
-		{console_exec {git reflog expire --all}}
-		{console_exec {git repack -a -d -l}}
-		{console_exec {git rerere gc}}
-	} $w
-}
-
-proc do_fsck_objects {} {
-	set w [new_console {fsck-objects} \
-		{Verifying the object database with fsck-objects}]
-	set cmd [list git fsck-objects]
-	lappend cmd --full
-	lappend cmd --cache
-	lappend cmd --strict
-	console_exec $w $cmd console_done
-}
-
 set is_quitting 0
 
 proc do_quit {} {
@@ -4299,606 +1051,10 @@ proc do_rescan {} {
 	rescan {set ui_status_value {Ready.}}
 }
 
-proc unstage_helper {txt paths} {
-	global file_states current_diff_path
-
-	if {![lock_index begin-update]} return
-
-	set pathList [list]
-	set after {}
-	foreach path $paths {
-		switch -glob -- [lindex $file_states($path) 0] {
-		A? -
-		M? -
-		D? {
-			lappend pathList $path
-			if {$path eq $current_diff_path} {
-				set after {reshow_diff;}
-			}
-		}
-		}
-	}
-	if {$pathList eq {}} {
-		unlock_index
-	} else {
-		update_indexinfo \
-			$txt \
-			$pathList \
-			[concat $after {set ui_status_value {Ready.}}]
-	}
-}
-
-proc do_unstage_selection {} {
-	global current_diff_path selected_paths
-
-	if {[array size selected_paths] > 0} {
-		unstage_helper \
-			{Unstaging selected files from commit} \
-			[array names selected_paths]
-	} elseif {$current_diff_path ne {}} {
-		unstage_helper \
-			"Unstaging [short_path $current_diff_path] from commit" \
-			[list $current_diff_path]
-	}
-}
-
-proc add_helper {txt paths} {
-	global file_states current_diff_path
-
-	if {![lock_index begin-update]} return
-
-	set pathList [list]
-	set after {}
-	foreach path $paths {
-		switch -glob -- [lindex $file_states($path) 0] {
-		_O -
-		?M -
-		?D -
-		U? {
-			lappend pathList $path
-			if {$path eq $current_diff_path} {
-				set after {reshow_diff;}
-			}
-		}
-		}
-	}
-	if {$pathList eq {}} {
-		unlock_index
-	} else {
-		update_index \
-			$txt \
-			$pathList \
-			[concat $after {set ui_status_value {Ready to commit.}}]
-	}
-}
-
-proc do_add_selection {} {
-	global current_diff_path selected_paths
-
-	if {[array size selected_paths] > 0} {
-		add_helper \
-			{Adding selected files} \
-			[array names selected_paths]
-	} elseif {$current_diff_path ne {}} {
-		add_helper \
-			"Adding [short_path $current_diff_path]" \
-			[list $current_diff_path]
-	}
-}
-
-proc do_add_all {} {
-	global file_states
-
-	set paths [list]
-	foreach path [array names file_states] {
-		switch -glob -- [lindex $file_states($path) 0] {
-		U? {continue}
-		?M -
-		?D {lappend paths $path}
-		}
-	}
-	add_helper {Adding all changed files} $paths
-}
-
-proc revert_helper {txt paths} {
-	global file_states current_diff_path
-
-	if {![lock_index begin-update]} return
-
-	set pathList [list]
-	set after {}
-	foreach path $paths {
-		switch -glob -- [lindex $file_states($path) 0] {
-		U? {continue}
-		?M -
-		?D {
-			lappend pathList $path
-			if {$path eq $current_diff_path} {
-				set after {reshow_diff;}
-			}
-		}
-		}
-	}
-
-	set n [llength $pathList]
-	if {$n == 0} {
-		unlock_index
-		return
-	} elseif {$n == 1} {
-		set s "[short_path [lindex $pathList]]"
-	} else {
-		set s "these $n files"
-	}
-
-	set reply [tk_dialog \
-		.confirm_revert \
-		"[appname] ([reponame])" \
-		"Revert changes in $s?
-
-Any unadded changes will be permanently lost by the revert." \
-		question \
-		1 \
-		{Do Nothing} \
-		{Revert Changes} \
-		]
-	if {$reply == 1} {
-		checkout_index \
-			$txt \
-			$pathList \
-			[concat $after {set ui_status_value {Ready.}}]
-	} else {
-		unlock_index
-	}
-}
-
-proc do_revert_selection {} {
-	global current_diff_path selected_paths
-
-	if {[array size selected_paths] > 0} {
-		revert_helper \
-			{Reverting selected files} \
-			[array names selected_paths]
-	} elseif {$current_diff_path ne {}} {
-		revert_helper \
-			"Reverting [short_path $current_diff_path]" \
-			[list $current_diff_path]
-	}
-}
-
-proc do_signoff {} {
-	global ui_comm
-
-	set me [committer_ident]
-	if {$me eq {}} return
-
-	set sob "Signed-off-by: $me"
-	set last [$ui_comm get {end -1c linestart} {end -1c}]
-	if {$last ne $sob} {
-		$ui_comm edit separator
-		if {$last ne {}
-			&& ![regexp {^[A-Z][A-Za-z]*-[A-Za-z-]+: *} $last]} {
-			$ui_comm insert end "\n"
-		}
-		$ui_comm insert end "\n$sob"
-		$ui_comm edit separator
-		$ui_comm see end
-	}
-}
-
-proc do_select_commit_type {} {
-	global commit_type selected_commit_type
-
-	if {$selected_commit_type eq {new}
-		&& [string match amend* $commit_type]} {
-		create_new_commit
-	} elseif {$selected_commit_type eq {amend}
-		&& ![string match amend* $commit_type]} {
-		load_last_commit
-
-		# The amend request was rejected...
-		#
-		if {![string match amend* $commit_type]} {
-			set selected_commit_type new
-		}
-	}
-}
-
 proc do_commit {} {
 	commit_tree
 }
 
-proc do_about {} {
-	global appvers copyright
-	global tcl_patchLevel tk_patchLevel
-
-	set w .about_dialog
-	toplevel $w
-	wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
-
-	label $w.header -text "About [appname]" \
-		-font font_uibold
-	pack $w.header -side top -fill x
-
-	frame $w.buttons
-	button $w.buttons.close -text {Close} \
-		-font font_ui \
-		-default active \
-		-command [list destroy $w]
-	pack $w.buttons.close -side right
-	pack $w.buttons -side bottom -fill x -pady 10 -padx 10
-
-	label $w.desc \
-		-text "git-gui - a graphical user interface for Git.
-$copyright" \
-		-padx 5 -pady 5 \
-		-justify left \
-		-anchor w \
-		-borderwidth 1 \
-		-relief solid \
-		-font font_ui
-	pack $w.desc -side top -fill x -padx 5 -pady 5
-
-	set v {}
-	append v "git-gui version $appvers\n"
-	append v "[git version]\n"
-	append v "\n"
-	if {$tcl_patchLevel eq $tk_patchLevel} {
-		append v "Tcl/Tk version $tcl_patchLevel"
-	} else {
-		append v "Tcl version $tcl_patchLevel"
-		append v ", Tk version $tk_patchLevel"
-	}
-
-	label $w.vers \
-		-text $v \
-		-padx 5 -pady 5 \
-		-justify left \
-		-anchor w \
-		-borderwidth 1 \
-		-relief solid \
-		-font font_ui
-	pack $w.vers -side top -fill x -padx 5 -pady 5
-
-	menu $w.ctxm -tearoff 0
-	$w.ctxm add command \
-		-label {Copy} \
-		-font font_ui \
-		-command "
-		clipboard clear
-		clipboard append -format STRING -type STRING -- \[$w.vers cget -text\]
-	"
-
-	bind $w <Visibility> "grab $w; focus $w.buttons.close"
-	bind $w <Key-Escape> "destroy $w"
-	bind $w <Key-Return> "destroy $w"
-	bind_button3 $w.vers "tk_popup $w.ctxm %X %Y; grab $w; focus $w"
-	wm title $w "About [appname]"
-	tkwait window $w
-}
-
-proc do_options {} {
-	global repo_config global_config font_descs
-	global repo_config_new global_config_new
-
-	array unset repo_config_new
-	array unset global_config_new
-	foreach name [array names repo_config] {
-		set repo_config_new($name) $repo_config($name)
-	}
-	load_config 1
-	foreach name [array names repo_config] {
-		switch -- $name {
-		gui.diffcontext {continue}
-		}
-		set repo_config_new($name) $repo_config($name)
-	}
-	foreach name [array names global_config] {
-		set global_config_new($name) $global_config($name)
-	}
-
-	set w .options_editor
-	toplevel $w
-	wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
-
-	label $w.header -text "Options" \
-		-font font_uibold
-	pack $w.header -side top -fill x
-
-	frame $w.buttons
-	button $w.buttons.restore -text {Restore Defaults} \
-		-font font_ui \
-		-default normal \
-		-command do_restore_defaults
-	pack $w.buttons.restore -side left
-	button $w.buttons.save -text Save \
-		-font font_ui \
-		-default active \
-		-command [list do_save_config $w]
-	pack $w.buttons.save -side right
-	button $w.buttons.cancel -text {Cancel} \
-		-font font_ui \
-		-default normal \
-		-command [list destroy $w]
-	pack $w.buttons.cancel -side right -padx 5
-	pack $w.buttons -side bottom -fill x -pady 10 -padx 10
-
-	labelframe $w.repo -text "[reponame] Repository" \
-		-font font_ui
-	labelframe $w.global -text {Global (All Repositories)} \
-		-font font_ui
-	pack $w.repo -side left -fill both -expand 1 -pady 5 -padx 5
-	pack $w.global -side right -fill both -expand 1 -pady 5 -padx 5
-
-	set optid 0
-	foreach option {
-		{t user.name {User Name}}
-		{t user.email {Email Address}}
-
-		{b merge.summary {Summarize Merge Commits}}
-		{i-1..5 merge.verbosity {Merge Verbosity}}
-
-		{b gui.trustmtime  {Trust File Modification Timestamps}}
-		{i-1..99 gui.diffcontext {Number of Diff Context Lines}}
-		{t gui.newbranchtemplate {New Branch Name Template}}
-		} {
-		set type [lindex $option 0]
-		set name [lindex $option 1]
-		set text [lindex $option 2]
-		incr optid
-		foreach f {repo global} {
-			switch -glob -- $type {
-			b {
-				checkbutton $w.$f.$optid -text $text \
-					-variable ${f}_config_new($name) \
-					-onvalue true \
-					-offvalue false \
-					-font font_ui
-				pack $w.$f.$optid -side top -anchor w
-			}
-			i-* {
-				regexp -- {-(\d+)\.\.(\d+)$} $type _junk min max
-				frame $w.$f.$optid
-				label $w.$f.$optid.l -text "$text:" -font font_ui
-				pack $w.$f.$optid.l -side left -anchor w -fill x
-				spinbox $w.$f.$optid.v \
-					-textvariable ${f}_config_new($name) \
-					-from $min \
-					-to $max \
-					-increment 1 \
-					-width [expr {1 + [string length $max]}] \
-					-font font_ui
-				bind $w.$f.$optid.v <FocusIn> {%W selection range 0 end}
-				pack $w.$f.$optid.v -side right -anchor e -padx 5
-				pack $w.$f.$optid -side top -anchor w -fill x
-			}
-			t {
-				frame $w.$f.$optid
-				label $w.$f.$optid.l -text "$text:" -font font_ui
-				entry $w.$f.$optid.v \
-					-borderwidth 1 \
-					-relief sunken \
-					-width 20 \
-					-textvariable ${f}_config_new($name) \
-					-font font_ui
-				pack $w.$f.$optid.l -side left -anchor w
-				pack $w.$f.$optid.v -side left -anchor w \
-					-fill x -expand 1 \
-					-padx 5
-				pack $w.$f.$optid -side top -anchor w -fill x
-			}
-			}
-		}
-	}
-
-	set all_fonts [lsort [font families]]
-	foreach option $font_descs {
-		set name [lindex $option 0]
-		set font [lindex $option 1]
-		set text [lindex $option 2]
-
-		set global_config_new(gui.$font^^family) \
-			[font configure $font -family]
-		set global_config_new(gui.$font^^size) \
-			[font configure $font -size]
-
-		frame $w.global.$name
-		label $w.global.$name.l -text "$text:" -font font_ui
-		pack $w.global.$name.l -side left -anchor w -fill x
-		set fontmenu [eval tk_optionMenu $w.global.$name.family \
-			global_config_new(gui.$font^^family) \
-			$all_fonts]
-		$w.global.$name.family configure -font font_ui
-		$fontmenu configure -font font_ui
-		spinbox $w.global.$name.size \
-			-textvariable global_config_new(gui.$font^^size) \
-			-from 2 -to 80 -increment 1 \
-			-width 3 \
-			-font font_ui
-		bind $w.global.$name.size <FocusIn> {%W selection range 0 end}
-		pack $w.global.$name.size -side right -anchor e
-		pack $w.global.$name.family -side right -anchor e
-		pack $w.global.$name -side top -anchor w -fill x
-	}
-
-	bind $w <Visibility> "grab $w; focus $w.buttons.save"
-	bind $w <Key-Escape> "destroy $w"
-	bind $w <Key-Return> [list do_save_config $w]
-	wm title $w "[appname] ([reponame]): Options"
-	tkwait window $w
-}
-
-proc do_restore_defaults {} {
-	global font_descs default_config repo_config
-	global repo_config_new global_config_new
-
-	foreach name [array names default_config] {
-		set repo_config_new($name) $default_config($name)
-		set global_config_new($name) $default_config($name)
-	}
-
-	foreach option $font_descs {
-		set name [lindex $option 0]
-		set repo_config(gui.$name) $default_config(gui.$name)
-	}
-	apply_config
-
-	foreach option $font_descs {
-		set name [lindex $option 0]
-		set font [lindex $option 1]
-		set global_config_new(gui.$font^^family) \
-			[font configure $font -family]
-		set global_config_new(gui.$font^^size) \
-			[font configure $font -size]
-	}
-}
-
-proc do_save_config {w} {
-	if {[catch {save_config} err]} {
-		error_popup "Failed to completely save options:\n\n$err"
-	}
-	reshow_diff
-	destroy $w
-}
-
-proc do_windows_shortcut {} {
-	global argv0
-
-	set fn [tk_getSaveFile \
-		-parent . \
-		-title "[appname] ([reponame]): Create Desktop Icon" \
-		-initialfile "Git [reponame].bat"]
-	if {$fn != {}} {
-		if {[catch {
-				set fd [open $fn w]
-				puts $fd "@ECHO Entering [reponame]"
-				puts $fd "@ECHO Starting git-gui... please wait..."
-				puts $fd "@SET PATH=[file normalize [gitexec]];%PATH%"
-				puts $fd "@SET GIT_DIR=[file normalize [gitdir]]"
-				puts -nonewline $fd "@\"[info nameofexecutable]\""
-				puts $fd " \"[file normalize $argv0]\""
-				close $fd
-			} err]} {
-			error_popup "Cannot write script:\n\n$err"
-		}
-	}
-}
-
-proc do_cygwin_shortcut {} {
-	global argv0
-
-	if {[catch {
-		set desktop [exec cygpath \
-			--windows \
-			--absolute \
-			--long-name \
-			--desktop]
-		}]} {
-			set desktop .
-	}
-	set fn [tk_getSaveFile \
-		-parent . \
-		-title "[appname] ([reponame]): Create Desktop Icon" \
-		-initialdir $desktop \
-		-initialfile "Git [reponame].bat"]
-	if {$fn != {}} {
-		if {[catch {
-				set fd [open $fn w]
-				set sh [exec cygpath \
-					--windows \
-					--absolute \
-					/bin/sh]
-				set me [exec cygpath \
-					--unix \
-					--absolute \
-					$argv0]
-				set gd [exec cygpath \
-					--unix \
-					--absolute \
-					[gitdir]]
-				set gw [exec cygpath \
-					--windows \
-					--absolute \
-					[file dirname [gitdir]]]
-				regsub -all ' $me "'\\''" me
-				regsub -all ' $gd "'\\''" gd
-				puts $fd "@ECHO Entering $gw"
-				puts $fd "@ECHO Starting git-gui... please wait..."
-				puts -nonewline $fd "@\"$sh\" --login -c \""
-				puts -nonewline $fd "GIT_DIR='$gd'"
-				puts -nonewline $fd " '$me'"
-				puts $fd "&\""
-				close $fd
-			} err]} {
-			error_popup "Cannot write script:\n\n$err"
-		}
-	}
-}
-
-proc do_macosx_app {} {
-	global argv0 env
-
-	set fn [tk_getSaveFile \
-		-parent . \
-		-title "[appname] ([reponame]): Create Desktop Icon" \
-		-initialdir [file join $env(HOME) Desktop] \
-		-initialfile "Git [reponame].app"]
-	if {$fn != {}} {
-		if {[catch {
-				set Contents [file join $fn Contents]
-				set MacOS [file join $Contents MacOS]
-				set exe [file join $MacOS git-gui]
-
-				file mkdir $MacOS
-
-				set fd [open [file join $Contents Info.plist] w]
-				puts $fd {<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>CFBundleDevelopmentRegion</key>
-	<string>English</string>
-	<key>CFBundleExecutable</key>
-	<string>git-gui</string>
-	<key>CFBundleIdentifier</key>
-	<string>org.spearce.git-gui</string>
-	<key>CFBundleInfoDictionaryVersion</key>
-	<string>6.0</string>
-	<key>CFBundlePackageType</key>
-	<string>APPL</string>
-	<key>CFBundleSignature</key>
-	<string>????</string>
-	<key>CFBundleVersion</key>
-	<string>1.0</string>
-	<key>NSPrincipalClass</key>
-	<string>NSApplication</string>
-</dict>
-</plist>}
-				close $fd
-
-				set fd [open $exe w]
-				set gd [file normalize [gitdir]]
-				set ep [file normalize [gitexec]]
-				regsub -all ' $gd "'\\''" gd
-				regsub -all ' $ep "'\\''" ep
-				puts $fd "#!/bin/sh"
-				foreach name [array names env] {
-					if {[string match GIT_* $name]} {
-						regsub -all ' $env($name) "'\\''" v
-						puts $fd "export $name='$v'"
-					}
-				}
-				puts $fd "export PATH='$ep':\$PATH"
-				puts $fd "export GIT_DIR='$gd'"
-				puts $fd "exec [file normalize $argv0]"
-				close $fd
-
-				file attributes $exe -permissions u+x,g+x,o+x
-			} err]} {
-			error_popup "Cannot write icon:\n\n$err"
-		}
-	}
-}
-
 proc toggle_or_diff {w x y} {
 	global file_states file_lists current_diff_path ui_index ui_workdir
 	global last_clicked selected_paths
@@ -5010,6 +1166,13 @@ catch {
 font create font_uibold
 font create font_diffbold
 
+foreach class {Button Checkbutton Entry Label
+		Labelframe Listbox Menu Message
+		Radiobutton Text} {
+	option add *$class.font font_ui
+}
+unset class
+
 if {[is_Windows]} {
 	set M1B Control
 	set M1T Ctrl
@@ -5104,18 +1267,18 @@ set ui_comm {}
 # -- Menu Bar
 #
 menu .mbar -tearoff 0
-.mbar add cascade -label Repository -menu .mbar.repository -font font_ui
-.mbar add cascade -label Edit -menu .mbar.edit -font font_ui
+.mbar add cascade -label Repository -menu .mbar.repository
+.mbar add cascade -label Edit -menu .mbar.edit
 if {[is_enabled branch]} {
-	.mbar add cascade -label Branch -menu .mbar.branch -font font_ui
+	.mbar add cascade -label Branch -menu .mbar.branch
 }
 if {[is_enabled multicommit] || [is_enabled singlecommit]} {
-	.mbar add cascade -label Commit -menu .mbar.commit -font font_ui
+	.mbar add cascade -label Commit -menu .mbar.commit
 }
 if {[is_enabled transport]} {
-	.mbar add cascade -label Merge -menu .mbar.merge -font font_ui
-	.mbar add cascade -label Fetch -menu .mbar.fetch -font font_ui
-	.mbar add cascade -label Push -menu .mbar.push -font font_ui
+	.mbar add cascade -label Merge -menu .mbar.merge
+	.mbar add cascade -label Fetch -menu .mbar.fetch
+	.mbar add cascade -label Push -menu .mbar.push
 }
 . configure -menu .mbar
 
@@ -5125,93 +1288,76 @@ menu .mbar.repository
 
 .mbar.repository add command \
 	-label {Browse Current Branch} \
-	-command {new_browser $current_branch} \
-	-font font_ui
+	-command {new_browser $current_branch}
 trace add variable current_branch write ".mbar.repository entryconf [.mbar.repository index last] -label \"Browse \$current_branch\" ;#"
 .mbar.repository add separator
 
 .mbar.repository add command \
 	-label {Visualize Current Branch} \
-	-command {do_gitk $current_branch} \
-	-font font_ui
+	-command {do_gitk $current_branch}
 trace add variable current_branch write ".mbar.repository entryconf [.mbar.repository index last] -label \"Visualize \$current_branch\" ;#"
 .mbar.repository add command \
 	-label {Visualize All Branches} \
-	-command {do_gitk --all} \
-	-font font_ui
+	-command {do_gitk --all}
 .mbar.repository add separator
 
 if {[is_enabled multicommit]} {
 	.mbar.repository add command -label {Database Statistics} \
-		-command do_stats \
-		-font font_ui
+		-command do_stats
 
 	.mbar.repository add command -label {Compress Database} \
-		-command do_gc \
-		-font font_ui
+		-command do_gc
 
 	.mbar.repository add command -label {Verify Database} \
-		-command do_fsck_objects \
-		-font font_ui
+		-command do_fsck_objects
 
 	.mbar.repository add separator
 
 	if {[is_Cygwin]} {
 		.mbar.repository add command \
 			-label {Create Desktop Icon} \
-			-command do_cygwin_shortcut \
-			-font font_ui
+			-command do_cygwin_shortcut
 	} elseif {[is_Windows]} {
 		.mbar.repository add command \
 			-label {Create Desktop Icon} \
-			-command do_windows_shortcut \
-			-font font_ui
+			-command do_windows_shortcut
 	} elseif {[is_MacOSX]} {
 		.mbar.repository add command \
 			-label {Create Desktop Icon} \
-			-command do_macosx_app \
-			-font font_ui
+			-command do_macosx_app
 	}
 }
 
 .mbar.repository add command -label Quit \
 	-command do_quit \
-	-accelerator $M1T-Q \
-	-font font_ui
+	-accelerator $M1T-Q
 
 # -- Edit Menu
 #
 menu .mbar.edit
 .mbar.edit add command -label Undo \
 	-command {catch {[focus] edit undo}} \
-	-accelerator $M1T-Z \
-	-font font_ui
+	-accelerator $M1T-Z
 .mbar.edit add command -label Redo \
 	-command {catch {[focus] edit redo}} \
-	-accelerator $M1T-Y \
-	-font font_ui
+	-accelerator $M1T-Y
 .mbar.edit add separator
 .mbar.edit add command -label Cut \
 	-command {catch {tk_textCut [focus]}} \
-	-accelerator $M1T-X \
-	-font font_ui
+	-accelerator $M1T-X
 .mbar.edit add command -label Copy \
 	-command {catch {tk_textCopy [focus]}} \
-	-accelerator $M1T-C \
-	-font font_ui
+	-accelerator $M1T-C
 .mbar.edit add command -label Paste \
 	-command {catch {tk_textPaste [focus]; [focus] see insert}} \
-	-accelerator $M1T-V \
-	-font font_ui
+	-accelerator $M1T-V
 .mbar.edit add command -label Delete \
 	-command {catch {[focus] delete sel.first sel.last}} \
-	-accelerator Del \
-	-font font_ui
+	-accelerator Del
 .mbar.edit add separator
 .mbar.edit add command -label {Select All} \
 	-command {catch {[focus] tag add sel 0.0 end}} \
-	-accelerator $M1T-A \
-	-font font_ui
+	-accelerator $M1T-A
 
 # -- Branch Menu
 #
@@ -5220,20 +1366,17 @@ if {[is_enabled branch]} {
 
 	.mbar.branch add command -label {Create...} \
 		-command do_create_branch \
-		-accelerator $M1T-N \
-		-font font_ui
+		-accelerator $M1T-N
 	lappend disable_on_lock [list .mbar.branch entryconf \
 		[.mbar.branch index last] -state]
 
 	.mbar.branch add command -label {Delete...} \
-		-command do_delete_branch \
-		-font font_ui
+		-command do_delete_branch
 	lappend disable_on_lock [list .mbar.branch entryconf \
 		[.mbar.branch index last] -state]
 
 	.mbar.branch add command -label {Reset...} \
-		-command do_reset_hard \
-		-font font_ui
+		-command merge::reset_hard
 	lappend disable_on_lock [list .mbar.branch entryconf \
 		[.mbar.branch index last] -state]
 }
@@ -5247,8 +1390,7 @@ if {[is_enabled multicommit] || [is_enabled singlecommit]} {
 		-label {New Commit} \
 		-command do_select_commit_type \
 		-variable selected_commit_type \
-		-value new \
-		-font font_ui
+		-value new
 	lappend disable_on_lock \
 		[list .mbar.commit entryconf [.mbar.commit index last] -state]
 
@@ -5256,8 +1398,7 @@ if {[is_enabled multicommit] || [is_enabled singlecommit]} {
 		-label {Amend Last Commit} \
 		-command do_select_commit_type \
 		-variable selected_commit_type \
-		-value amend \
-		-font font_ui
+		-value amend
 	lappend disable_on_lock \
 		[list .mbar.commit entryconf [.mbar.commit index last] -state]
 
@@ -5265,33 +1406,28 @@ if {[is_enabled multicommit] || [is_enabled singlecommit]} {
 
 	.mbar.commit add command -label Rescan \
 		-command do_rescan \
-		-accelerator F5 \
-		-font font_ui
+		-accelerator F5
 	lappend disable_on_lock \
 		[list .mbar.commit entryconf [.mbar.commit index last] -state]
 
 	.mbar.commit add command -label {Add To Commit} \
-		-command do_add_selection \
-		-font font_ui
+		-command do_add_selection
 	lappend disable_on_lock \
 		[list .mbar.commit entryconf [.mbar.commit index last] -state]
 
 	.mbar.commit add command -label {Add Existing To Commit} \
 		-command do_add_all \
-		-accelerator $M1T-I \
-		-font font_ui
+		-accelerator $M1T-I
 	lappend disable_on_lock \
 		[list .mbar.commit entryconf [.mbar.commit index last] -state]
 
 	.mbar.commit add command -label {Unstage From Commit} \
-		-command do_unstage_selection \
-		-font font_ui
+		-command do_unstage_selection
 	lappend disable_on_lock \
 		[list .mbar.commit entryconf [.mbar.commit index last] -state]
 
 	.mbar.commit add command -label {Revert Changes} \
-		-command do_revert_selection \
-		-font font_ui
+		-command do_revert_selection
 	lappend disable_on_lock \
 		[list .mbar.commit entryconf [.mbar.commit index last] -state]
 
@@ -5299,13 +1435,11 @@ if {[is_enabled multicommit] || [is_enabled singlecommit]} {
 
 	.mbar.commit add command -label {Sign Off} \
 		-command do_signoff \
-		-accelerator $M1T-S \
-		-font font_ui
+		-accelerator $M1T-S
 
 	.mbar.commit add command -label Commit \
 		-command do_commit \
-		-accelerator $M1T-Return \
-		-font font_ui
+		-accelerator $M1T-Return
 	lappend disable_on_lock \
 		[list .mbar.commit entryconf [.mbar.commit index last] -state]
 }
@@ -5315,13 +1449,11 @@ if {[is_enabled multicommit] || [is_enabled singlecommit]} {
 if {[is_enabled branch]} {
 	menu .mbar.merge
 	.mbar.merge add command -label {Local Merge...} \
-		-command do_local_merge \
-		-font font_ui
+		-command merge::dialog
 	lappend disable_on_lock \
 		[list .mbar.merge entryconf [.mbar.merge index last] -state]
 	.mbar.merge add command -label {Abort Merge...} \
-		-command do_reset_hard \
-		-font font_ui
+		-command merge::reset_hard
 	lappend disable_on_lock \
 		[list .mbar.merge entryconf [.mbar.merge index last] -state]
 
@@ -5334,8 +1466,7 @@ if {[is_enabled transport]} {
 
 	menu .mbar.push
 	.mbar.push add command -label {Push...} \
-		-command do_push_anywhere \
-		-font font_ui
+		-command do_push_anywhere
 }
 
 if {[is_MacOSX]} {
@@ -5345,18 +1476,15 @@ if {[is_MacOSX]} {
 	menu .mbar.apple
 
 	.mbar.apple add command -label "About [appname]" \
-		-command do_about \
-		-font font_ui
+		-command do_about
 	.mbar.apple add command -label "Options..." \
-		-command do_options \
-		-font font_ui
+		-command do_options
 } else {
 	# -- Edit Menu
 	#
 	.mbar.edit add separator
 	.mbar.edit add command -label {Options...} \
-		-command do_options \
-		-font font_ui
+		-command do_options
 
 	# -- Tools Menu
 	#
@@ -5382,8 +1510,7 @@ if {[is_MacOSX]} {
 	.mbar add cascade -label Tools -menu .mbar.tools
 	menu .mbar.tools
 	.mbar.tools add command -label "Migrate" \
-		-command do_miga \
-		-font font_ui
+		-command do_miga
 	lappend disable_on_lock \
 		[list .mbar.tools entryconf [.mbar.tools index last] -state]
 	}
@@ -5391,13 +1518,12 @@ if {[is_MacOSX]} {
 
 # -- Help Menu
 #
-.mbar add cascade -label Help -menu .mbar.help -font font_ui
+.mbar add cascade -label Help -menu .mbar.help
 menu .mbar.help
 
 if {![is_MacOSX]} {
 	.mbar.help add command -label "About [appname]" \
-		-command do_about \
-		-font font_ui
+		-command do_about
 }
 
 set browser {}
@@ -5434,8 +1560,7 @@ if {[file isfile $doc_path]} {
 
 if {$browser ne {}} {
 	.mbar.help add command -label {Online Documentation} \
-		-command [list exec $browser $doc_url &] \
-		-font font_ui
+		-command [list exec $browser $doc_url &]
 }
 unset browser doc_path doc_url
 
@@ -5494,13 +1619,11 @@ frame .branch \
 label .branch.l1 \
 	-text {Current Branch:} \
 	-anchor w \
-	-justify left \
-	-font font_ui
+	-justify left
 label .branch.cb \
 	-textvariable current_branch \
 	-anchor w \
-	-justify left \
-	-font font_ui
+	-justify left
 pack .branch.l1 -side left
 pack .branch.cb -side left -fill x
 pack .branch -side top -fill x
@@ -5516,12 +1639,10 @@ pack .vpane -anchor n -side top -fill both -expand 1
 #
 frame .vpane.files.index -height 100 -width 200
 label .vpane.files.index.title -text {Changes To Be Committed} \
-	-background green \
-	-font font_ui
+	-background green
 text $ui_index -background white -borderwidth 0 \
 	-width 20 -height 10 \
 	-wrap none \
-	-font font_ui \
 	-cursor $cursor_ptr \
 	-xscrollcommand {.vpane.files.index.sx set} \
 	-yscrollcommand {.vpane.files.index.sy set} \
@@ -5538,12 +1659,10 @@ pack $ui_index -side left -fill both -expand 1
 #
 frame .vpane.files.workdir -height 100 -width 200
 label .vpane.files.workdir.title -text {Changed But Not Updated} \
-	-background red \
-	-font font_ui
+	-background red
 text $ui_workdir -background white -borderwidth 0 \
 	-width 20 -height 10 \
 	-wrap none \
-	-font font_ui \
 	-cursor $cursor_ptr \
 	-xscrollcommand {.vpane.files.workdir.sx set} \
 	-yscrollcommand {.vpane.files.workdir.sy set} \
@@ -5578,33 +1697,28 @@ pack .vpane.lower.diff -side bottom -fill both -expand 1
 frame .vpane.lower.commarea.buttons
 label .vpane.lower.commarea.buttons.l -text {} \
 	-anchor w \
-	-justify left \
-	-font font_ui
+	-justify left
 pack .vpane.lower.commarea.buttons.l -side top -fill x
 pack .vpane.lower.commarea.buttons -side left -fill y
 
 button .vpane.lower.commarea.buttons.rescan -text {Rescan} \
-	-command do_rescan \
-	-font font_ui
+	-command do_rescan
 pack .vpane.lower.commarea.buttons.rescan -side top -fill x
 lappend disable_on_lock \
 	{.vpane.lower.commarea.buttons.rescan conf -state}
 
 button .vpane.lower.commarea.buttons.incall -text {Add Existing} \
-	-command do_add_all \
-	-font font_ui
+	-command do_add_all
 pack .vpane.lower.commarea.buttons.incall -side top -fill x
 lappend disable_on_lock \
 	{.vpane.lower.commarea.buttons.incall conf -state}
 
 button .vpane.lower.commarea.buttons.signoff -text {Sign Off} \
-	-command do_signoff \
-	-font font_ui
+	-command do_signoff
 pack .vpane.lower.commarea.buttons.signoff -side top -fill x
 
 button .vpane.lower.commarea.buttons.commit -text {Commit} \
-	-command do_commit \
-	-font font_ui
+	-command do_commit
 pack .vpane.lower.commarea.buttons.commit -side top -fill x
 lappend disable_on_lock \
 	{.vpane.lower.commarea.buttons.commit conf -state}
@@ -5619,22 +1733,19 @@ radiobutton .vpane.lower.commarea.buffer.header.new \
 	-text {New Commit} \
 	-command do_select_commit_type \
 	-variable selected_commit_type \
-	-value new \
-	-font font_ui
+	-value new
 lappend disable_on_lock \
 	[list .vpane.lower.commarea.buffer.header.new conf -state]
 radiobutton .vpane.lower.commarea.buffer.header.amend \
 	-text {Amend Last Commit} \
 	-command do_select_commit_type \
 	-variable selected_commit_type \
-	-value amend \
-	-font font_ui
+	-value amend
 lappend disable_on_lock \
 	[list .vpane.lower.commarea.buffer.header.amend conf -state]
 label $ui_coml \
 	-anchor w \
-	-justify left \
-	-font font_ui
+	-justify left
 proc trace_commit_type {varname args} {
 	global ui_coml commit_type
 	switch -glob -- $commit_type {
@@ -5673,28 +1784,22 @@ set ctxm .vpane.lower.commarea.buffer.ctxm
 menu $ctxm -tearoff 0
 $ctxm add command \
 	-label {Cut} \
-	-font font_ui \
 	-command {tk_textCut $ui_comm}
 $ctxm add command \
 	-label {Copy} \
-	-font font_ui \
 	-command {tk_textCopy $ui_comm}
 $ctxm add command \
 	-label {Paste} \
-	-font font_ui \
 	-command {tk_textPaste $ui_comm}
 $ctxm add command \
 	-label {Delete} \
-	-font font_ui \
 	-command {$ui_comm delete sel.first sel.last}
 $ctxm add separator
 $ctxm add command \
 	-label {Select All} \
-	-font font_ui \
 	-command {focus $ui_comm;$ui_comm tag add sel 0.0 end}
 $ctxm add command \
 	-label {Copy All} \
-	-font font_ui \
 	-command {
 		$ui_comm tag add sel 0.0 end
 		tk_textCopy $ui_comm
@@ -5703,7 +1808,6 @@ $ctxm add command \
 $ctxm add separator
 $ctxm add command \
 	-label {Sign Off} \
-	-font font_ui \
 	-command do_signoff
 bind_button3 $ui_comm "tk_popup $ctxm %X %Y"
 
@@ -5738,18 +1842,15 @@ label .vpane.lower.diff.header.status \
 	-background orange \
 	-width $max_status_desc \
 	-anchor w \
-	-justify left \
-	-font font_ui
+	-justify left
 label .vpane.lower.diff.header.file \
 	-background orange \
 	-anchor w \
-	-justify left \
-	-font font_ui
+	-justify left
 label .vpane.lower.diff.header.path \
 	-background orange \
 	-anchor w \
-	-justify left \
-	-font font_ui
+	-justify left
 pack .vpane.lower.diff.header.status -side left
 pack .vpane.lower.diff.header.file -side left
 pack .vpane.lower.diff.header.path -fill x
@@ -5757,7 +1858,6 @@ set ctxm .vpane.lower.diff.header.ctxm
 menu $ctxm -tearoff 0
 $ctxm add command \
 	-label {Copy} \
-	-font font_ui \
 	-command {
 		clipboard clear
 		clipboard append \
@@ -5826,22 +1926,18 @@ set ctxm .vpane.lower.diff.body.ctxm
 menu $ctxm -tearoff 0
 $ctxm add command \
 	-label {Refresh} \
-	-font font_ui \
 	-command reshow_diff
 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
 $ctxm add command \
 	-label {Copy} \
-	-font font_ui \
 	-command {tk_textCopy $ui_diff}
 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
 $ctxm add command \
 	-label {Select All} \
-	-font font_ui \
 	-command {focus $ui_diff;$ui_diff tag add sel 0.0 end}
 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
 $ctxm add command \
 	-label {Copy All} \
-	-font font_ui \
 	-command {
 		$ui_diff tag add sel 0.0 end
 		tk_textCopy $ui_diff
@@ -5851,25 +1947,21 @@ lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
 $ctxm add separator
 $ctxm add command \
 	-label {Apply/Reverse Hunk} \
-	-font font_ui \
 	-command {apply_hunk $cursorX $cursorY}
 set ui_diff_applyhunk [$ctxm index last]
 lappend diff_actions [list $ctxm entryconf $ui_diff_applyhunk -state]
 $ctxm add separator
 $ctxm add command \
 	-label {Decrease Font Size} \
-	-font font_ui \
 	-command {incr_font_size font_diff -1}
 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
 $ctxm add command \
 	-label {Increase Font Size} \
-	-font font_ui \
 	-command {incr_font_size font_diff 1}
 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
 $ctxm add separator
 $ctxm add command \
 	-label {Show Less Context} \
-	-font font_ui \
 	-command {if {$repo_config(gui.diffcontext) >= 2} {
 		incr repo_config(gui.diffcontext) -1
 		reshow_diff
@@ -5877,7 +1969,6 @@ $ctxm add command \
 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
 $ctxm add command \
 	-label {Show More Context} \
-	-font font_ui \
 	-command {
 		incr repo_config(gui.diffcontext)
 		reshow_diff
@@ -5885,7 +1976,6 @@ $ctxm add command \
 lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
 $ctxm add separator
 $ctxm add command -label {Options...} \
-	-font font_ui \
 	-command do_options
 bind_button3 $ui_diff "
 	set cursorX %x
@@ -5905,8 +1995,7 @@ label .status -textvariable ui_status_value \
 	-anchor w \
 	-justify left \
 	-borderwidth 1 \
-	-relief sunken \
-	-font font_ui
+	-relief sunken
 pack .status -anchor w -side bottom -fill x
 
 # -- Load geometry
@@ -5949,6 +2038,12 @@ bind $ui_diff <Key-Up>     {catch {%W yview scroll -1 units};break}
 bind $ui_diff <Key-Down>   {catch {%W yview scroll  1 units};break}
 bind $ui_diff <Key-Left>   {catch {%W xview scroll -1 units};break}
 bind $ui_diff <Key-Right>  {catch {%W xview scroll  1 units};break}
+bind $ui_diff <Key-k>         {catch {%W yview scroll -1 units};break}
+bind $ui_diff <Key-j>         {catch {%W yview scroll  1 units};break}
+bind $ui_diff <Key-h>         {catch {%W xview scroll -1 units};break}
+bind $ui_diff <Key-l>         {catch {%W xview scroll  1 units};break}
+bind $ui_diff <Control-Key-b> {catch {%W yview scroll -1 pages};break}
+bind $ui_diff <Control-Key-f> {catch {%W yview scroll  1 pages};break}
 bind $ui_diff <Button-1>   {focus %W}
 
 if {[is_enabled branch]} {
diff --git a/git-gui/lib/blame.tcl b/git-gui/lib/blame.tcl
new file mode 100644
index 0000000000..6d894e52d4
--- /dev/null
+++ b/git-gui/lib/blame.tcl
@@ -0,0 +1,407 @@
+# git-gui blame viewer
+# Copyright (C) 2006, 2007 Shawn Pearce
+
+proc show_blame {commit path} {
+	global next_browser_id blame_status blame_data
+
+	if {[winfo ismapped .]} {
+		set w .browser[incr next_browser_id]
+		set tl $w
+		toplevel $w
+	} else {
+		set w {}
+		set tl .
+	}
+	set blame_status($w) {Loading current file content...}
+
+	label $w.path -text "$commit:$path" \
+		-anchor w \
+		-justify left \
+		-borderwidth 1 \
+		-relief sunken \
+		-font font_uibold
+	pack $w.path -side top -fill x
+
+	frame $w.out
+	text $w.out.loaded_t \
+		-background white -borderwidth 0 \
+		-state disabled \
+		-wrap none \
+		-height 40 \
+		-width 1 \
+		-font font_diff
+	$w.out.loaded_t tag conf annotated -background grey
+
+	text $w.out.linenumber_t \
+		-background white -borderwidth 0 \
+		-state disabled \
+		-wrap none \
+		-height 40 \
+		-width 5 \
+		-font font_diff
+	$w.out.linenumber_t tag conf linenumber -justify right
+
+	text $w.out.file_t \
+		-background white -borderwidth 0 \
+		-state disabled \
+		-wrap none \
+		-height 40 \
+		-width 80 \
+		-xscrollcommand [list $w.out.sbx set] \
+		-font font_diff
+
+	scrollbar $w.out.sbx -orient h -command [list $w.out.file_t xview]
+	scrollbar $w.out.sby -orient v \
+		-command [list scrollbar2many [list \
+		$w.out.loaded_t \
+		$w.out.linenumber_t \
+		$w.out.file_t \
+		] yview]
+	grid \
+		$w.out.linenumber_t \
+		$w.out.loaded_t \
+		$w.out.file_t \
+		$w.out.sby \
+		-sticky nsew
+	grid conf $w.out.sbx -column 2 -sticky we
+	grid columnconfigure $w.out 2 -weight 1
+	grid rowconfigure $w.out 0 -weight 1
+	pack $w.out -fill both -expand 1
+
+	label $w.status -textvariable blame_status($w) \
+		-anchor w \
+		-justify left \
+		-borderwidth 1 \
+		-relief sunken
+	pack $w.status -side bottom -fill x
+
+	frame $w.cm
+	text $w.cm.t \
+		-background white -borderwidth 0 \
+		-state disabled \
+		-wrap none \
+		-height 10 \
+		-width 80 \
+		-xscrollcommand [list $w.cm.sbx set] \
+		-yscrollcommand [list $w.cm.sby set] \
+		-font font_diff
+	scrollbar $w.cm.sbx -orient h -command [list $w.cm.t xview]
+	scrollbar $w.cm.sby -orient v -command [list $w.cm.t yview]
+	pack $w.cm.sby -side right -fill y
+	pack $w.cm.sbx -side bottom -fill x
+	pack $w.cm.t -expand 1 -fill both
+	pack $w.cm -side bottom -fill x
+
+	menu $w.ctxm -tearoff 0
+	$w.ctxm add command -label "Copy Commit" \
+		-command "blame_copycommit $w \$cursorW @\$cursorX,\$cursorY"
+
+	foreach i [list \
+		$w.out.loaded_t \
+		$w.out.linenumber_t \
+		$w.out.file_t] {
+		$i tag conf in_sel \
+			-background [$i cget -foreground] \
+			-foreground [$i cget -background]
+		$i conf -yscrollcommand \
+			[list many2scrollbar [list \
+			$w.out.loaded_t \
+			$w.out.linenumber_t \
+			$w.out.file_t \
+			] yview $w.out.sby]
+		bind $i <Button-1> "
+			blame_click {$w} \\
+				$w.cm.t \\
+				$w.out.linenumber_t \\
+				$w.out.file_t \\
+				$i @%x,%y
+			focus $i
+		"
+		bind_button3 $i "
+			set cursorX %x
+			set cursorY %y
+			set cursorW %W
+			tk_popup $w.ctxm %X %Y
+		"
+	}
+
+	foreach i [list \
+		$w.out.loaded_t \
+		$w.out.linenumber_t \
+		$w.out.file_t \
+		$w.cm.t] {
+		bind $i <Key-Up>        {catch {%W yview scroll -1 units};break}
+		bind $i <Key-Down>      {catch {%W yview scroll  1 units};break}
+		bind $i <Key-Left>      {catch {%W xview scroll -1 units};break}
+		bind $i <Key-Right>     {catch {%W xview scroll  1 units};break}
+		bind $i <Key-k>         {catch {%W yview scroll -1 units};break}
+		bind $i <Key-j>         {catch {%W yview scroll  1 units};break}
+		bind $i <Key-h>         {catch {%W xview scroll -1 units};break}
+		bind $i <Key-l>         {catch {%W xview scroll  1 units};break}
+		bind $i <Control-Key-b> {catch {%W yview scroll -1 pages};break}
+		bind $i <Control-Key-f> {catch {%W yview scroll  1 pages};break}
+	}
+
+	bind $w.cm.t <Button-1> "focus $w.cm.t"
+	bind $tl <Visibility> "focus $tl"
+	bind $tl <Destroy> "
+		array unset blame_status {$w}
+		array unset blame_data $w,*
+	"
+	wm title $tl "[appname] ([reponame]): File Viewer"
+
+	set blame_data($w,commit_count) 0
+	set blame_data($w,commit_list) {}
+	set blame_data($w,total_lines) 0
+	set blame_data($w,blame_lines) 0
+	set blame_data($w,highlight_commit) {}
+	set blame_data($w,highlight_line) -1
+
+	set cmd [list git cat-file blob "$commit:$path"]
+	set fd [open "| $cmd" r]
+	fconfigure $fd -blocking 0 -translation lf -encoding binary
+	fileevent $fd readable [list read_blame_catfile \
+		$fd $w $commit $path \
+		$w.cm.t $w.out.loaded_t $w.out.linenumber_t $w.out.file_t]
+}
+
+proc read_blame_catfile {fd w commit path w_cmit w_load w_line w_file} {
+	global blame_status blame_data
+
+	if {![winfo exists $w_file]} {
+		catch {close $fd}
+		return
+	}
+
+	set n $blame_data($w,total_lines)
+	$w_load conf -state normal
+	$w_line conf -state normal
+	$w_file conf -state normal
+	while {[gets $fd line] >= 0} {
+		regsub "\r\$" $line {} line
+		incr n
+		$w_load insert end "\n"
+		$w_line insert end "$n\n" linenumber
+		$w_file insert end "$line\n"
+	}
+	$w_load conf -state disabled
+	$w_line conf -state disabled
+	$w_file conf -state disabled
+	set blame_data($w,total_lines) $n
+
+	if {[eof $fd]} {
+		close $fd
+		blame_incremental_status $w
+		set cmd [list git blame -M -C --incremental]
+		lappend cmd $commit -- $path
+		set fd [open "| $cmd" r]
+		fconfigure $fd -blocking 0 -translation lf -encoding binary
+		fileevent $fd readable [list read_blame_incremental $fd $w \
+			$w_load $w_cmit $w_line $w_file]
+	}
+}
+
+proc read_blame_incremental {fd w w_load w_cmit w_line w_file} {
+	global blame_status blame_data
+
+	if {![winfo exists $w_file]} {
+		catch {close $fd}
+		return
+	}
+
+	while {[gets $fd line] >= 0} {
+		if {[regexp {^([a-z0-9]{40}) (\d+) (\d+) (\d+)$} $line line \
+			cmit original_line final_line line_count]} {
+			set blame_data($w,commit) $cmit
+			set blame_data($w,original_line) $original_line
+			set blame_data($w,final_line) $final_line
+			set blame_data($w,line_count) $line_count
+
+			if {[catch {set g $blame_data($w,$cmit,order)}]} {
+				$w_line tag conf g$cmit
+				$w_file tag conf g$cmit
+				$w_line tag raise in_sel
+				$w_file tag raise in_sel
+				$w_file tag raise sel
+				set blame_data($w,$cmit,order) $blame_data($w,commit_count)
+				incr blame_data($w,commit_count)
+				lappend blame_data($w,commit_list) $cmit
+			}
+		} elseif {[string match {filename *} $line]} {
+			set file [string range $line 9 end]
+			set n $blame_data($w,line_count)
+			set lno $blame_data($w,final_line)
+			set cmit $blame_data($w,commit)
+
+			while {$n > 0} {
+				if {[catch {set g g$blame_data($w,line$lno,commit)}]} {
+					$w_load tag add annotated $lno.0 "$lno.0 lineend + 1c"
+				} else {
+					$w_line tag remove g$g $lno.0 "$lno.0 lineend + 1c"
+					$w_file tag remove g$g $lno.0 "$lno.0 lineend + 1c"
+				}
+
+				set blame_data($w,line$lno,commit) $cmit
+				set blame_data($w,line$lno,file) $file
+				$w_line tag add g$cmit $lno.0 "$lno.0 lineend + 1c"
+				$w_file tag add g$cmit $lno.0 "$lno.0 lineend + 1c"
+
+				if {$blame_data($w,highlight_line) == -1} {
+					if {[lindex [$w_file yview] 0] == 0} {
+						$w_file see $lno.0
+						blame_showcommit $w $w_cmit $w_line $w_file $lno
+					}
+				} elseif {$blame_data($w,highlight_line) == $lno} {
+					blame_showcommit $w $w_cmit $w_line $w_file $lno
+				}
+
+				incr n -1
+				incr lno
+				incr blame_data($w,blame_lines)
+			}
+
+			set hc $blame_data($w,highlight_commit)
+			if {$hc ne {}
+				&& [expr {$blame_data($w,$hc,order) + 1}]
+					== $blame_data($w,$cmit,order)} {
+				blame_showcommit $w $w_cmit $w_line $w_file \
+					$blame_data($w,highlight_line)
+			}
+		} elseif {[regexp {^([a-z-]+) (.*)$} $line line header data]} {
+			set blame_data($w,$blame_data($w,commit),$header) $data
+		}
+	}
+
+	if {[eof $fd]} {
+		close $fd
+		set blame_status($w) {Annotation complete.}
+	} else {
+		blame_incremental_status $w
+	}
+}
+
+proc blame_incremental_status {w} {
+	global blame_status blame_data
+
+	set have  $blame_data($w,blame_lines)
+	set total $blame_data($w,total_lines)
+	set pdone 0
+	if {$total} {set pdone [expr {100 * $have / $total}]}
+
+	set blame_status($w) [format \
+		"Loading annotations... %i of %i lines annotated (%2i%%)" \
+		$have $total $pdone]
+}
+
+proc blame_click {w w_cmit w_line w_file cur_w pos} {
+	set lno [lindex [split [$cur_w index $pos] .] 0]
+	if {$lno eq {}} return
+
+	$w_line tag remove in_sel 0.0 end
+	$w_file tag remove in_sel 0.0 end
+	$w_line tag add in_sel $lno.0 "$lno.0 + 1 line"
+	$w_file tag add in_sel $lno.0 "$lno.0 + 1 line"
+
+	blame_showcommit $w $w_cmit $w_line $w_file $lno
+}
+
+set blame_colors {
+	#ff4040
+	#ff40ff
+	#4040ff
+}
+
+proc blame_showcommit {w w_cmit w_line w_file lno} {
+	global blame_colors blame_data repo_config
+
+	set cmit $blame_data($w,highlight_commit)
+	if {$cmit ne {}} {
+		set idx $blame_data($w,$cmit,order)
+		set i 0
+		foreach c $blame_colors {
+			set h [lindex $blame_data($w,commit_list) [expr {$idx - 1 + $i}]]
+			$w_line tag conf g$h -background white
+			$w_file tag conf g$h -background white
+			incr i
+		}
+	}
+
+	$w_cmit conf -state normal
+	$w_cmit delete 0.0 end
+	if {[catch {set cmit $blame_data($w,line$lno,commit)}]} {
+		set cmit {}
+		$w_cmit insert end "Loading annotation..."
+	} else {
+		set idx $blame_data($w,$cmit,order)
+		set i 0
+		foreach c $blame_colors {
+			set h [lindex $blame_data($w,commit_list) [expr {$idx - 1 + $i}]]
+			$w_line tag conf g$h -background $c
+			$w_file tag conf g$h -background $c
+			incr i
+		}
+
+		set author_name {}
+		set author_email {}
+		set author_time {}
+		catch {set author_name $blame_data($w,$cmit,author)}
+		catch {set author_email $blame_data($w,$cmit,author-mail)}
+		catch {set author_time [clock format $blame_data($w,$cmit,author-time)]}
+
+		set committer_name {}
+		set committer_email {}
+		set committer_time {}
+		catch {set committer_name $blame_data($w,$cmit,committer)}
+		catch {set committer_email $blame_data($w,$cmit,committer-mail)}
+		catch {set committer_time [clock format $blame_data($w,$cmit,committer-time)]}
+
+		if {[catch {set msg $blame_data($w,$cmit,message)}]} {
+			set msg {}
+			catch {
+				set fd [open "| git cat-file commit $cmit" r]
+				fconfigure $fd -encoding binary -translation lf
+				if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
+					set enc utf-8
+				}
+				while {[gets $fd line] > 0} {
+					if {[string match {encoding *} $line]} {
+						set enc [string tolower [string range $line 9 end]]
+					}
+				}
+				set msg [encoding convertfrom $enc [read $fd]]
+				set msg [string trim $msg]
+				close $fd
+
+				set author_name [encoding convertfrom $enc $author_name]
+				set committer_name [encoding convertfrom $enc $committer_name]
+
+				set blame_data($w,$cmit,author) $author_name
+				set blame_data($w,$cmit,committer) $committer_name
+			}
+			set blame_data($w,$cmit,message) $msg
+		}
+
+		$w_cmit insert end "commit $cmit\n"
+		$w_cmit insert end "Author: $author_name $author_email $author_time\n"
+		$w_cmit insert end "Committer: $committer_name $committer_email $committer_time\n"
+		$w_cmit insert end "Original File: [escape_path $blame_data($w,line$lno,file)]\n"
+		$w_cmit insert end "\n"
+		$w_cmit insert end $msg
+	}
+	$w_cmit conf -state disabled
+
+	set blame_data($w,highlight_line) $lno
+	set blame_data($w,highlight_commit) $cmit
+}
+
+proc blame_copycommit {w i pos} {
+	global blame_data
+	set lno [lindex [split [$i index $pos] .] 0]
+	if {![catch {set commit $blame_data($w,line$lno,commit)}]} {
+		clipboard clear
+		clipboard append \
+			-format STRING \
+			-type STRING \
+			-- $commit
+	}
+}
diff --git a/git-gui/lib/branch.tcl b/git-gui/lib/branch.tcl
new file mode 100644
index 0000000000..caaee5cf17
--- /dev/null
+++ b/git-gui/lib/branch.tcl
@@ -0,0 +1,572 @@
+# git-gui branch (create/delete) support
+# Copyright (C) 2006, 2007 Shawn Pearce
+
+proc load_all_heads {} {
+	global all_heads
+
+	set all_heads [list]
+	set fd [open "| git for-each-ref --format=%(refname) refs/heads" r]
+	while {[gets $fd line] > 0} {
+		if {[is_tracking_branch $line]} continue
+		if {![regsub ^refs/heads/ $line {} name]} continue
+		lappend all_heads $name
+	}
+	close $fd
+
+	set all_heads [lsort $all_heads]
+}
+
+proc load_all_tags {} {
+	set all_tags [list]
+	set fd [open "| git for-each-ref --format=%(refname) refs/tags" r]
+	while {[gets $fd line] > 0} {
+		if {![regsub ^refs/tags/ $line {} name]} continue
+		lappend all_tags $name
+	}
+	close $fd
+
+	return [lsort $all_tags]
+}
+
+proc populate_branch_menu {} {
+	global all_heads disable_on_lock
+
+	set m .mbar.branch
+	set last [$m index last]
+	for {set i 0} {$i <= $last} {incr i} {
+		if {[$m type $i] eq {separator}} {
+			$m delete $i last
+			set new_dol [list]
+			foreach a $disable_on_lock {
+				if {[lindex $a 0] ne $m || [lindex $a 2] < $i} {
+					lappend new_dol $a
+				}
+			}
+			set disable_on_lock $new_dol
+			break
+		}
+	}
+
+	if {$all_heads ne {}} {
+		$m add separator
+	}
+	foreach b $all_heads {
+		$m add radiobutton \
+			-label $b \
+			-command [list switch_branch $b] \
+			-variable current_branch \
+			-value $b
+		lappend disable_on_lock \
+			[list $m entryconf [$m index last] -state]
+	}
+}
+
+proc do_create_branch_action {w} {
+	global all_heads null_sha1 repo_config
+	global create_branch_checkout create_branch_revtype
+	global create_branch_head create_branch_trackinghead
+	global create_branch_name create_branch_revexp
+	global create_branch_tag
+
+	set newbranch $create_branch_name
+	if {$newbranch eq {}
+		|| $newbranch eq $repo_config(gui.newbranchtemplate)} {
+		tk_messageBox \
+			-icon error \
+			-type ok \
+			-title [wm title $w] \
+			-parent $w \
+			-message "Please supply a branch name."
+		focus $w.desc.name_t
+		return
+	}
+	if {![catch {git show-ref --verify -- "refs/heads/$newbranch"}]} {
+		tk_messageBox \
+			-icon error \
+			-type ok \
+			-title [wm title $w] \
+			-parent $w \
+			-message "Branch '$newbranch' already exists."
+		focus $w.desc.name_t
+		return
+	}
+	if {[catch {git check-ref-format "heads/$newbranch"}]} {
+		tk_messageBox \
+			-icon error \
+			-type ok \
+			-title [wm title $w] \
+			-parent $w \
+			-message "We do not like '$newbranch' as a branch name."
+		focus $w.desc.name_t
+		return
+	}
+
+	set rev {}
+	switch -- $create_branch_revtype {
+	head {set rev $create_branch_head}
+	tracking {set rev $create_branch_trackinghead}
+	tag {set rev $create_branch_tag}
+	expression {set rev $create_branch_revexp}
+	}
+	if {[catch {set cmt [git rev-parse --verify "${rev}^0"]}]} {
+		tk_messageBox \
+			-icon error \
+			-type ok \
+			-title [wm title $w] \
+			-parent $w \
+			-message "Invalid starting revision: $rev"
+		return
+	}
+	if {[catch {
+			git update-ref \
+				-m "branch: Created from $rev" \
+				"refs/heads/$newbranch" \
+				$cmt \
+				$null_sha1
+		} err]} {
+		tk_messageBox \
+			-icon error \
+			-type ok \
+			-title [wm title $w] \
+			-parent $w \
+			-message "Failed to create '$newbranch'.\n\n$err"
+		return
+	}
+
+	lappend all_heads $newbranch
+	set all_heads [lsort $all_heads]
+	populate_branch_menu
+	destroy $w
+	if {$create_branch_checkout} {
+		switch_branch $newbranch
+	}
+}
+
+proc radio_selector {varname value args} {
+	upvar #0 $varname var
+	set var $value
+}
+
+trace add variable create_branch_head write \
+	[list radio_selector create_branch_revtype head]
+trace add variable create_branch_trackinghead write \
+	[list radio_selector create_branch_revtype tracking]
+trace add variable create_branch_tag write \
+	[list radio_selector create_branch_revtype tag]
+
+trace add variable delete_branch_head write \
+	[list radio_selector delete_branch_checktype head]
+trace add variable delete_branch_trackinghead write \
+	[list radio_selector delete_branch_checktype tracking]
+
+proc do_create_branch {} {
+	global all_heads current_branch repo_config
+	global create_branch_checkout create_branch_revtype
+	global create_branch_head create_branch_trackinghead
+	global create_branch_name create_branch_revexp
+	global create_branch_tag
+
+	set w .branch_editor
+	toplevel $w
+	wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
+
+	label $w.header -text {Create New Branch} \
+		-font font_uibold
+	pack $w.header -side top -fill x
+
+	frame $w.buttons
+	button $w.buttons.create -text Create \
+		-default active \
+		-command [list do_create_branch_action $w]
+	pack $w.buttons.create -side right
+	button $w.buttons.cancel -text {Cancel} \
+		-command [list destroy $w]
+	pack $w.buttons.cancel -side right -padx 5
+	pack $w.buttons -side bottom -fill x -pady 10 -padx 10
+
+	labelframe $w.desc -text {Branch Description}
+	label $w.desc.name_l -text {Name:}
+	entry $w.desc.name_t \
+		-borderwidth 1 \
+		-relief sunken \
+		-width 40 \
+		-textvariable create_branch_name \
+		-validate key \
+		-validatecommand {
+			if {%d == 1 && [regexp {[~^:?*\[\0- ]} %S]} {return 0}
+			return 1
+		}
+	grid $w.desc.name_l $w.desc.name_t -sticky we -padx {0 5}
+	grid columnconfigure $w.desc 1 -weight 1
+	pack $w.desc -anchor nw -fill x -pady 5 -padx 5
+
+	labelframe $w.from -text {Starting Revision}
+	radiobutton $w.from.head_r \
+		-text {Local Branch:} \
+		-value head \
+		-variable create_branch_revtype
+	eval tk_optionMenu $w.from.head_m create_branch_head $all_heads
+	grid $w.from.head_r $w.from.head_m -sticky w
+	set all_trackings [all_tracking_branches]
+	if {$all_trackings ne {}} {
+		set create_branch_trackinghead [lindex $all_trackings 0]
+		radiobutton $w.from.tracking_r \
+			-text {Tracking Branch:} \
+			-value tracking \
+			-variable create_branch_revtype
+		eval tk_optionMenu $w.from.tracking_m \
+			create_branch_trackinghead \
+			$all_trackings
+		grid $w.from.tracking_r $w.from.tracking_m -sticky w
+	}
+	set all_tags [load_all_tags]
+	if {$all_tags ne {}} {
+		set create_branch_tag [lindex $all_tags 0]
+		radiobutton $w.from.tag_r \
+			-text {Tag:} \
+			-value tag \
+			-variable create_branch_revtype
+		eval tk_optionMenu $w.from.tag_m create_branch_tag $all_tags
+		grid $w.from.tag_r $w.from.tag_m -sticky w
+	}
+	radiobutton $w.from.exp_r \
+		-text {Revision Expression:} \
+		-value expression \
+		-variable create_branch_revtype
+	entry $w.from.exp_t \
+		-borderwidth 1 \
+		-relief sunken \
+		-width 50 \
+		-textvariable create_branch_revexp \
+		-validate key \
+		-validatecommand {
+			if {%d == 1 && [regexp {\s} %S]} {return 0}
+			if {%d == 1 && [string length %S] > 0} {
+				set create_branch_revtype expression
+			}
+			return 1
+		}
+	grid $w.from.exp_r $w.from.exp_t -sticky we -padx {0 5}
+	grid columnconfigure $w.from 1 -weight 1
+	pack $w.from -anchor nw -fill x -pady 5 -padx 5
+
+	labelframe $w.postActions -text {Post Creation Actions}
+	checkbutton $w.postActions.checkout \
+		-text {Checkout after creation} \
+		-variable create_branch_checkout
+	pack $w.postActions.checkout -anchor nw
+	pack $w.postActions -anchor nw -fill x -pady 5 -padx 5
+
+	set create_branch_checkout 1
+	set create_branch_head $current_branch
+	set create_branch_revtype head
+	set create_branch_name $repo_config(gui.newbranchtemplate)
+	set create_branch_revexp {}
+
+	bind $w <Visibility> "
+		grab $w
+		$w.desc.name_t icursor end
+		focus $w.desc.name_t
+	"
+	bind $w <Key-Escape> "destroy $w"
+	bind $w <Key-Return> "do_create_branch_action $w;break"
+	wm title $w "[appname] ([reponame]): Create Branch"
+	tkwait window $w
+}
+
+proc do_delete_branch_action {w} {
+	global all_heads
+	global delete_branch_checktype delete_branch_head delete_branch_trackinghead
+
+	set check_rev {}
+	switch -- $delete_branch_checktype {
+	head {set check_rev $delete_branch_head}
+	tracking {set check_rev $delete_branch_trackinghead}
+	always {set check_rev {:none}}
+	}
+	if {$check_rev eq {:none}} {
+		set check_cmt {}
+	} elseif {[catch {set check_cmt [git rev-parse --verify "${check_rev}^0"]}]} {
+		tk_messageBox \
+			-icon error \
+			-type ok \
+			-title [wm title $w] \
+			-parent $w \
+			-message "Invalid check revision: $check_rev"
+		return
+	}
+
+	set to_delete [list]
+	set not_merged [list]
+	foreach i [$w.list.l curselection] {
+		set b [$w.list.l get $i]
+		if {[catch {set o [git rev-parse --verify $b]}]} continue
+		if {$check_cmt ne {}} {
+			if {$b eq $check_rev} continue
+			if {[catch {set m [git merge-base $o $check_cmt]}]} continue
+			if {$o ne $m} {
+				lappend not_merged $b
+				continue
+			}
+		}
+		lappend to_delete [list $b $o]
+	}
+	if {$not_merged ne {}} {
+		set msg "The following branches are not completely merged into $check_rev:
+
+ - [join $not_merged "\n - "]"
+		tk_messageBox \
+			-icon info \
+			-type ok \
+			-title [wm title $w] \
+			-parent $w \
+			-message $msg
+	}
+	if {$to_delete eq {}} return
+	if {$delete_branch_checktype eq {always}} {
+		set msg {Recovering deleted branches is difficult.
+
+Delete the selected branches?}
+		if {[tk_messageBox \
+			-icon warning \
+			-type yesno \
+			-title [wm title $w] \
+			-parent $w \
+			-message $msg] ne yes} {
+			return
+		}
+	}
+
+	set failed {}
+	foreach i $to_delete {
+		set b [lindex $i 0]
+		set o [lindex $i 1]
+		if {[catch {git update-ref -d "refs/heads/$b" $o} err]} {
+			append failed " - $b: $err\n"
+		} else {
+			set x [lsearch -sorted -exact $all_heads $b]
+			if {$x >= 0} {
+				set all_heads [lreplace $all_heads $x $x]
+			}
+		}
+	}
+
+	if {$failed ne {}} {
+		tk_messageBox \
+			-icon error \
+			-type ok \
+			-title [wm title $w] \
+			-parent $w \
+			-message "Failed to delete branches:\n$failed"
+	}
+
+	set all_heads [lsort $all_heads]
+	populate_branch_menu
+	destroy $w
+}
+
+proc do_delete_branch {} {
+	global all_heads tracking_branches current_branch
+	global delete_branch_checktype delete_branch_head delete_branch_trackinghead
+
+	set w .branch_editor
+	toplevel $w
+	wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
+
+	label $w.header -text {Delete Local Branch} \
+		-font font_uibold
+	pack $w.header -side top -fill x
+
+	frame $w.buttons
+	button $w.buttons.create -text Delete \
+		-command [list do_delete_branch_action $w]
+	pack $w.buttons.create -side right
+	button $w.buttons.cancel -text {Cancel} \
+		-command [list destroy $w]
+	pack $w.buttons.cancel -side right -padx 5
+	pack $w.buttons -side bottom -fill x -pady 10 -padx 10
+
+	labelframe $w.list -text {Local Branches}
+	listbox $w.list.l \
+		-height 10 \
+		-width 70 \
+		-selectmode extended \
+		-yscrollcommand [list $w.list.sby set]
+	foreach h $all_heads {
+		if {$h ne $current_branch} {
+			$w.list.l insert end $h
+		}
+	}
+	scrollbar $w.list.sby -command [list $w.list.l yview]
+	pack $w.list.sby -side right -fill y
+	pack $w.list.l -side left -fill both -expand 1
+	pack $w.list -fill both -expand 1 -pady 5 -padx 5
+
+	labelframe $w.validate -text {Delete Only If}
+	radiobutton $w.validate.head_r \
+		-text {Merged Into Local Branch:} \
+		-value head \
+		-variable delete_branch_checktype
+	eval tk_optionMenu $w.validate.head_m delete_branch_head $all_heads
+	grid $w.validate.head_r $w.validate.head_m -sticky w
+	set all_trackings [all_tracking_branches]
+	if {$all_trackings ne {}} {
+		set delete_branch_trackinghead [lindex $all_trackings 0]
+		radiobutton $w.validate.tracking_r \
+			-text {Merged Into Tracking Branch:} \
+			-value tracking \
+			-variable delete_branch_checktype
+		eval tk_optionMenu $w.validate.tracking_m \
+			delete_branch_trackinghead \
+			$all_trackings
+		grid $w.validate.tracking_r $w.validate.tracking_m -sticky w
+	}
+	radiobutton $w.validate.always_r \
+		-text {Always (Do not perform merge checks)} \
+		-value always \
+		-variable delete_branch_checktype
+	grid $w.validate.always_r -columnspan 2 -sticky w
+	grid columnconfigure $w.validate 1 -weight 1
+	pack $w.validate -anchor nw -fill x -pady 5 -padx 5
+
+	set delete_branch_head $current_branch
+	set delete_branch_checktype head
+
+	bind $w <Visibility> "grab $w; focus $w"
+	bind $w <Key-Escape> "destroy $w"
+	wm title $w "[appname] ([reponame]): Delete Branch"
+	tkwait window $w
+}
+
+proc switch_branch {new_branch} {
+	global HEAD commit_type current_branch repo_config
+
+	if {![lock_index switch]} return
+
+	# -- Our in memory state should match the repository.
+	#
+	repository_state curType curHEAD curMERGE_HEAD
+	if {[string match amend* $commit_type]
+		&& $curType eq {normal}
+		&& $curHEAD eq $HEAD} {
+	} elseif {$commit_type ne $curType || $HEAD ne $curHEAD} {
+		info_popup {Last scanned state does not match repository state.
+
+Another Git program has modified this repository since the last scan.  A rescan must be performed before the current branch can be changed.
+
+The rescan will be automatically started now.
+}
+		unlock_index
+		rescan {set ui_status_value {Ready.}}
+		return
+	}
+
+	# -- Don't do a pointless switch.
+	#
+	if {$current_branch eq $new_branch} {
+		unlock_index
+		return
+	}
+
+	if {$repo_config(gui.trustmtime) eq {true}} {
+		switch_branch_stage2 {} $new_branch
+	} else {
+		set ui_status_value {Refreshing file status...}
+		set cmd [list git update-index]
+		lappend cmd -q
+		lappend cmd --unmerged
+		lappend cmd --ignore-missing
+		lappend cmd --refresh
+		set fd_rf [open "| $cmd" r]
+		fconfigure $fd_rf -blocking 0 -translation binary
+		fileevent $fd_rf readable \
+			[list switch_branch_stage2 $fd_rf $new_branch]
+	}
+}
+
+proc switch_branch_stage2 {fd_rf new_branch} {
+	global ui_status_value HEAD
+
+	if {$fd_rf ne {}} {
+		read $fd_rf
+		if {![eof $fd_rf]} return
+		close $fd_rf
+	}
+
+	set ui_status_value "Updating working directory to '$new_branch'..."
+	set cmd [list git read-tree]
+	lappend cmd -m
+	lappend cmd -u
+	lappend cmd --exclude-per-directory=.gitignore
+	lappend cmd $HEAD
+	lappend cmd $new_branch
+	set fd_rt [open "| $cmd" r]
+	fconfigure $fd_rt -blocking 0 -translation binary
+	fileevent $fd_rt readable \
+		[list switch_branch_readtree_wait $fd_rt $new_branch]
+}
+
+proc switch_branch_readtree_wait {fd_rt new_branch} {
+	global selected_commit_type commit_type HEAD MERGE_HEAD PARENT
+	global current_branch
+	global ui_comm ui_status_value
+
+	# -- We never get interesting output on stdout; only stderr.
+	#
+	read $fd_rt
+	fconfigure $fd_rt -blocking 1
+	if {![eof $fd_rt]} {
+		fconfigure $fd_rt -blocking 0
+		return
+	}
+
+	# -- The working directory wasn't in sync with the index and
+	#    we'd have to overwrite something to make the switch. A
+	#    merge is required.
+	#
+	if {[catch {close $fd_rt} err]} {
+		regsub {^fatal: } $err {} err
+		warn_popup "File level merge required.
+
+$err
+
+Staying on branch '$current_branch'."
+		set ui_status_value "Aborted checkout of '$new_branch' (file level merging is required)."
+		unlock_index
+		return
+	}
+
+	# -- Update the symbolic ref.  Core git doesn't even check for failure
+	#    here, it Just Works(tm).  If it doesn't we are in some really ugly
+	#    state that is difficult to recover from within git-gui.
+	#
+	if {[catch {git symbolic-ref HEAD "refs/heads/$new_branch"} err]} {
+		error_popup "Failed to set current branch.
+
+This working directory is only partially switched.  We successfully updated your files, but failed to update an internal Git file.
+
+This should not have occurred.  [appname] will now close and give up.
+
+$err"
+		do_quit
+		return
+	}
+
+	# -- Update our repository state.  If we were previously in amend mode
+	#    we need to toss the current buffer and do a full rescan to update
+	#    our file lists.  If we weren't in amend mode our file lists are
+	#    accurate and we can avoid the rescan.
+	#
+	unlock_index
+	set selected_commit_type new
+	if {[string match amend* $commit_type]} {
+		$ui_comm delete 0.0 end
+		$ui_comm edit reset
+		$ui_comm edit modified false
+		rescan {set ui_status_value "Checked out branch '$current_branch'."}
+	} else {
+		repository_state commit_type HEAD MERGE_HEAD
+		set PARENT $HEAD
+		set ui_status_value "Checked out branch '$current_branch'."
+	}
+}
diff --git a/git-gui/lib/browser.tcl b/git-gui/lib/browser.tcl
new file mode 100644
index 0000000000..631859ae75
--- /dev/null
+++ b/git-gui/lib/browser.tcl
@@ -0,0 +1,263 @@
+# git-gui tree browser
+# Copyright (C) 2006, 2007 Shawn Pearce
+
+set next_browser_id 0
+
+proc new_browser {commit} {
+	global next_browser_id cursor_ptr M1B
+	global browser_commit browser_status browser_stack browser_path browser_busy
+
+	if {[winfo ismapped .]} {
+		set w .browser[incr next_browser_id]
+		set tl $w
+		toplevel $w
+	} else {
+		set w {}
+		set tl .
+	}
+	set w_list $w.list.l
+	set browser_commit($w_list) $commit
+	set browser_status($w_list) {Starting...}
+	set browser_stack($w_list) {}
+	set browser_path($w_list) $browser_commit($w_list):
+	set browser_busy($w_list) 1
+
+	label $w.path -textvariable browser_path($w_list) \
+		-anchor w \
+		-justify left \
+		-borderwidth 1 \
+		-relief sunken \
+		-font font_uibold
+	pack $w.path -anchor w -side top -fill x
+
+	frame $w.list
+	text $w_list -background white -borderwidth 0 \
+		-cursor $cursor_ptr \
+		-state disabled \
+		-wrap none \
+		-height 20 \
+		-width 70 \
+		-xscrollcommand [list $w.list.sbx set] \
+		-yscrollcommand [list $w.list.sby set]
+	$w_list tag conf in_sel \
+		-background [$w_list cget -foreground] \
+		-foreground [$w_list cget -background]
+	scrollbar $w.list.sbx -orient h -command [list $w_list xview]
+	scrollbar $w.list.sby -orient v -command [list $w_list yview]
+	pack $w.list.sbx -side bottom -fill x
+	pack $w.list.sby -side right -fill y
+	pack $w_list -side left -fill both -expand 1
+	pack $w.list -side top -fill both -expand 1
+
+	label $w.status -textvariable browser_status($w_list) \
+		-anchor w \
+		-justify left \
+		-borderwidth 1 \
+		-relief sunken
+	pack $w.status -anchor w -side bottom -fill x
+
+	bind $w_list <Button-1>        "browser_click 0 $w_list @%x,%y;break"
+	bind $w_list <Double-Button-1> "browser_click 1 $w_list @%x,%y;break"
+	bind $w_list <$M1B-Up>         "browser_parent $w_list;break"
+	bind $w_list <$M1B-Left>       "browser_parent $w_list;break"
+	bind $w_list <Up>              "browser_move -1 $w_list;break"
+	bind $w_list <Down>            "browser_move 1 $w_list;break"
+	bind $w_list <$M1B-Right>      "browser_enter $w_list;break"
+	bind $w_list <Return>          "browser_enter $w_list;break"
+	bind $w_list <Prior>           "browser_page -1 $w_list;break"
+	bind $w_list <Next>            "browser_page 1 $w_list;break"
+	bind $w_list <Left>            break
+	bind $w_list <Right>           break
+
+	bind $tl <Visibility> "focus $w"
+	bind $tl <Destroy> "
+		array unset browser_buffer $w_list
+		array unset browser_files $w_list
+		array unset browser_status $w_list
+		array unset browser_stack $w_list
+		array unset browser_path $w_list
+		array unset browser_commit $w_list
+		array unset browser_busy $w_list
+	"
+	wm title $tl "[appname] ([reponame]): File Browser"
+	ls_tree $w_list $browser_commit($w_list) {}
+}
+
+proc browser_move {dir w} {
+	global browser_files browser_busy
+
+	if {$browser_busy($w)} return
+	set lno [lindex [split [$w index in_sel.first] .] 0]
+	incr lno $dir
+	if {[lindex $browser_files($w) [expr {$lno - 1}]] ne {}} {
+		$w tag remove in_sel 0.0 end
+		$w tag add in_sel $lno.0 [expr {$lno + 1}].0
+		$w see $lno.0
+	}
+}
+
+proc browser_page {dir w} {
+	global browser_files browser_busy
+
+	if {$browser_busy($w)} return
+	$w yview scroll $dir pages
+	set lno [expr {int(
+		  [lindex [$w yview] 0]
+		* [llength $browser_files($w)]
+		+ 1)}]
+	if {[lindex $browser_files($w) [expr {$lno - 1}]] ne {}} {
+		$w tag remove in_sel 0.0 end
+		$w tag add in_sel $lno.0 [expr {$lno + 1}].0
+		$w see $lno.0
+	}
+}
+
+proc browser_parent {w} {
+	global browser_files browser_status browser_path
+	global browser_stack browser_busy
+
+	if {$browser_busy($w)} return
+	set info [lindex $browser_files($w) 0]
+	if {[lindex $info 0] eq {parent}} {
+		set parent [lindex $browser_stack($w) end-1]
+		set browser_stack($w) [lrange $browser_stack($w) 0 end-2]
+		if {$browser_stack($w) eq {}} {
+			regsub {:.*$} $browser_path($w) {:} browser_path($w)
+		} else {
+			regsub {/[^/]+$} $browser_path($w) {} browser_path($w)
+		}
+		set browser_status($w) "Loading $browser_path($w)..."
+		ls_tree $w [lindex $parent 0] [lindex $parent 1]
+	}
+}
+
+proc browser_enter {w} {
+	global browser_files browser_status browser_path
+	global browser_commit browser_stack browser_busy
+
+	if {$browser_busy($w)} return
+	set lno [lindex [split [$w index in_sel.first] .] 0]
+	set info [lindex $browser_files($w) [expr {$lno - 1}]]
+	if {$info ne {}} {
+		switch -- [lindex $info 0] {
+		parent {
+			browser_parent $w
+		}
+		tree {
+			set name [lindex $info 2]
+			set escn [escape_path $name]
+			set browser_status($w) "Loading $escn..."
+			append browser_path($w) $escn
+			ls_tree $w [lindex $info 1] $name
+		}
+		blob {
+			set name [lindex $info 2]
+			set p {}
+			foreach n $browser_stack($w) {
+				append p [lindex $n 1]
+			}
+			append p $name
+			show_blame $browser_commit($w) $p
+		}
+		}
+	}
+}
+
+proc browser_click {was_double_click w pos} {
+	global browser_files browser_busy
+
+	if {$browser_busy($w)} return
+	set lno [lindex [split [$w index $pos] .] 0]
+	focus $w
+
+	if {[lindex $browser_files($w) [expr {$lno - 1}]] ne {}} {
+		$w tag remove in_sel 0.0 end
+		$w tag add in_sel $lno.0 [expr {$lno + 1}].0
+		if {$was_double_click} {
+			browser_enter $w
+		}
+	}
+}
+
+proc ls_tree {w tree_id name} {
+	global browser_buffer browser_files browser_stack browser_busy
+
+	set browser_buffer($w) {}
+	set browser_files($w) {}
+	set browser_busy($w) 1
+
+	$w conf -state normal
+	$w tag remove in_sel 0.0 end
+	$w delete 0.0 end
+	if {$browser_stack($w) ne {}} {
+		$w image create end \
+			-align center -padx 5 -pady 1 \
+			-name icon0 \
+			-image file_uplevel
+		$w insert end {[Up To Parent]}
+		lappend browser_files($w) parent
+	}
+	lappend browser_stack($w) [list $tree_id $name]
+	$w conf -state disabled
+
+	set cmd [list git ls-tree -z $tree_id]
+	set fd [open "| $cmd" r]
+	fconfigure $fd -blocking 0 -translation binary -encoding binary
+	fileevent $fd readable [list read_ls_tree $fd $w]
+}
+
+proc read_ls_tree {fd w} {
+	global browser_buffer browser_files browser_status browser_busy
+
+	if {![winfo exists $w]} {
+		catch {close $fd}
+		return
+	}
+
+	append browser_buffer($w) [read $fd]
+	set pck [split $browser_buffer($w) "\0"]
+	set browser_buffer($w) [lindex $pck end]
+
+	set n [llength $browser_files($w)]
+	$w conf -state normal
+	foreach p [lrange $pck 0 end-1] {
+		set info [split $p "\t"]
+		set path [lindex $info 1]
+		set info [split [lindex $info 0] { }]
+		set type [lindex $info 1]
+		set object [lindex $info 2]
+
+		switch -- $type {
+		blob {
+			set image file_mod
+		}
+		tree {
+			set image file_dir
+			append path /
+		}
+		default {
+			set image file_question
+		}
+		}
+
+		if {$n > 0} {$w insert end "\n"}
+		$w image create end \
+			-align center -padx 5 -pady 1 \
+			-name icon[incr n] \
+			-image $image
+		$w insert end [escape_path $path]
+		lappend browser_files($w) [list $type $object $path]
+	}
+	$w conf -state disabled
+
+	if {[eof $fd]} {
+		close $fd
+		set browser_status($w) Ready.
+		set browser_busy($w) 0
+		array unset browser_buffer $w
+		if {$n > 0} {
+			$w tag add in_sel 1.0 2.0
+			focus -force $w
+		}
+	}
+}
diff --git a/git-gui/lib/commit.tcl b/git-gui/lib/commit.tcl
new file mode 100644
index 0000000000..f9791f64db
--- /dev/null
+++ b/git-gui/lib/commit.tcl
@@ -0,0 +1,410 @@
+# git-gui misc. commit reading/writing support
+# Copyright (C) 2006, 2007 Shawn Pearce
+
+proc load_last_commit {} {
+	global HEAD PARENT MERGE_HEAD commit_type ui_comm
+	global repo_config
+
+	if {[llength $PARENT] == 0} {
+		error_popup {There is nothing to amend.
+
+You are about to create the initial commit.  There is no commit before this to amend.
+}
+		return
+	}
+
+	repository_state curType curHEAD curMERGE_HEAD
+	if {$curType eq {merge}} {
+		error_popup {Cannot amend while merging.
+
+You are currently in the middle of a merge that has not been fully completed.  You cannot amend the prior commit unless you first abort the current merge activity.
+}
+		return
+	}
+
+	set msg {}
+	set parents [list]
+	if {[catch {
+			set fd [open "| git cat-file commit $curHEAD" r]
+			fconfigure $fd -encoding binary -translation lf
+			if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
+				set enc utf-8
+			}
+			while {[gets $fd line] > 0} {
+				if {[string match {parent *} $line]} {
+					lappend parents [string range $line 7 end]
+				} elseif {[string match {encoding *} $line]} {
+					set enc [string tolower [string range $line 9 end]]
+				}
+			}
+			set msg [encoding convertfrom $enc [read $fd]]
+			set msg [string trim $msg]
+			close $fd
+		} err]} {
+		error_popup "Error loading commit data for amend:\n\n$err"
+		return
+	}
+
+	set HEAD $curHEAD
+	set PARENT $parents
+	set MERGE_HEAD [list]
+	switch -- [llength $parents] {
+	0       {set commit_type amend-initial}
+	1       {set commit_type amend}
+	default {set commit_type amend-merge}
+	}
+
+	$ui_comm delete 0.0 end
+	$ui_comm insert end $msg
+	$ui_comm edit reset
+	$ui_comm edit modified false
+	rescan {set ui_status_value {Ready.}}
+}
+
+set GIT_COMMITTER_IDENT {}
+
+proc committer_ident {} {
+	global GIT_COMMITTER_IDENT
+
+	if {$GIT_COMMITTER_IDENT eq {}} {
+		if {[catch {set me [git var GIT_COMMITTER_IDENT]} err]} {
+			error_popup "Unable to obtain your identity:\n\n$err"
+			return {}
+		}
+		if {![regexp {^(.*) [0-9]+ [-+0-9]+$} \
+			$me me GIT_COMMITTER_IDENT]} {
+			error_popup "Invalid GIT_COMMITTER_IDENT:\n\n$me"
+			return {}
+		}
+	}
+
+	return $GIT_COMMITTER_IDENT
+}
+
+proc do_signoff {} {
+	global ui_comm
+
+	set me [committer_ident]
+	if {$me eq {}} return
+
+	set sob "Signed-off-by: $me"
+	set last [$ui_comm get {end -1c linestart} {end -1c}]
+	if {$last ne $sob} {
+		$ui_comm edit separator
+		if {$last ne {}
+			&& ![regexp {^[A-Z][A-Za-z]*-[A-Za-z-]+: *} $last]} {
+			$ui_comm insert end "\n"
+		}
+		$ui_comm insert end "\n$sob"
+		$ui_comm edit separator
+		$ui_comm see end
+	}
+}
+
+proc create_new_commit {} {
+	global commit_type ui_comm
+
+	set commit_type normal
+	$ui_comm delete 0.0 end
+	$ui_comm edit reset
+	$ui_comm edit modified false
+	rescan {set ui_status_value {Ready.}}
+}
+
+proc commit_tree {} {
+	global HEAD commit_type file_states ui_comm repo_config
+	global ui_status_value pch_error
+
+	if {[committer_ident] eq {}} return
+	if {![lock_index update]} return
+
+	# -- Our in memory state should match the repository.
+	#
+	repository_state curType curHEAD curMERGE_HEAD
+	if {[string match amend* $commit_type]
+		&& $curType eq {normal}
+		&& $curHEAD eq $HEAD} {
+	} elseif {$commit_type ne $curType || $HEAD ne $curHEAD} {
+		info_popup {Last scanned state does not match repository state.
+
+Another Git program has modified this repository since the last scan.  A rescan must be performed before another commit can be created.
+
+The rescan will be automatically started now.
+}
+		unlock_index
+		rescan {set ui_status_value {Ready.}}
+		return
+	}
+
+	# -- At least one file should differ in the index.
+	#
+	set files_ready 0
+	foreach path [array names file_states] {
+		switch -glob -- [lindex $file_states($path) 0] {
+		_? {continue}
+		A? -
+		D? -
+		M? {set files_ready 1}
+		U? {
+			error_popup "Unmerged files cannot be committed.
+
+File [short_path $path] has merge conflicts.  You must resolve them and add the file before committing.
+"
+			unlock_index
+			return
+		}
+		default {
+			error_popup "Unknown file state [lindex $s 0] detected.
+
+File [short_path $path] cannot be committed by this program.
+"
+		}
+		}
+	}
+	if {!$files_ready && ![string match *merge $curType]} {
+		info_popup {No changes to commit.
+
+You must add at least 1 file before you can commit.
+}
+		unlock_index
+		return
+	}
+
+	# -- A message is required.
+	#
+	set msg [string trim [$ui_comm get 1.0 end]]
+	regsub -all -line {[ \t\r]+$} $msg {} msg
+	if {$msg eq {}} {
+		error_popup {Please supply a commit message.
+
+A good commit message has the following format:
+
+- First line: Describe in one sentance what you did.
+- Second line: Blank
+- Remaining lines: Describe why this change is good.
+}
+		unlock_index
+		return
+	}
+
+	# -- Run the pre-commit hook.
+	#
+	set pchook [gitdir hooks pre-commit]
+
+	# On Cygwin [file executable] might lie so we need to ask
+	# the shell if the hook is executable.  Yes that's annoying.
+	#
+	if {[is_Cygwin] && [file isfile $pchook]} {
+		set pchook [list sh -c [concat \
+			"if test -x \"$pchook\";" \
+			"then exec \"$pchook\" 2>&1;" \
+			"fi"]]
+	} elseif {[file executable $pchook]} {
+		set pchook [list $pchook |& cat]
+	} else {
+		commit_writetree $curHEAD $msg
+		return
+	}
+
+	set ui_status_value {Calling pre-commit hook...}
+	set pch_error {}
+	set fd_ph [open "| $pchook" r]
+	fconfigure $fd_ph -blocking 0 -translation binary
+	fileevent $fd_ph readable \
+		[list commit_prehook_wait $fd_ph $curHEAD $msg]
+}
+
+proc commit_prehook_wait {fd_ph curHEAD msg} {
+	global pch_error ui_status_value
+
+	append pch_error [read $fd_ph]
+	fconfigure $fd_ph -blocking 1
+	if {[eof $fd_ph]} {
+		if {[catch {close $fd_ph}]} {
+			set ui_status_value {Commit declined by pre-commit hook.}
+			hook_failed_popup pre-commit $pch_error
+			unlock_index
+		} else {
+			commit_writetree $curHEAD $msg
+		}
+		set pch_error {}
+		return
+	}
+	fconfigure $fd_ph -blocking 0
+}
+
+proc commit_writetree {curHEAD msg} {
+	global ui_status_value
+
+	set ui_status_value {Committing changes...}
+	set fd_wt [open "| git write-tree" r]
+	fileevent $fd_wt readable \
+		[list commit_committree $fd_wt $curHEAD $msg]
+}
+
+proc commit_committree {fd_wt curHEAD msg} {
+	global HEAD PARENT MERGE_HEAD commit_type
+	global all_heads current_branch
+	global ui_status_value ui_comm selected_commit_type
+	global file_states selected_paths rescan_active
+	global repo_config
+
+	gets $fd_wt tree_id
+	if {$tree_id eq {} || [catch {close $fd_wt} err]} {
+		error_popup "write-tree failed:\n\n$err"
+		set ui_status_value {Commit failed.}
+		unlock_index
+		return
+	}
+
+	# -- Verify this wasn't an empty change.
+	#
+	if {$commit_type eq {normal}} {
+		set old_tree [git rev-parse "$PARENT^{tree}"]
+		if {$tree_id eq $old_tree} {
+			info_popup {No changes to commit.
+
+No files were modified by this commit and it was not a merge commit.
+
+A rescan will be automatically started now.
+}
+			unlock_index
+			rescan {set ui_status_value {No changes to commit.}}
+			return
+		}
+	}
+
+	# -- Build the message.
+	#
+	set msg_p [gitdir COMMIT_EDITMSG]
+	set msg_wt [open $msg_p w]
+	if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
+		set enc utf-8
+	}
+	fconfigure $msg_wt -encoding binary -translation binary
+	puts -nonewline $msg_wt [encoding convertto $enc $msg]
+	close $msg_wt
+
+	# -- Create the commit.
+	#
+	set cmd [list commit-tree $tree_id]
+	foreach p [concat $PARENT $MERGE_HEAD] {
+		lappend cmd -p $p
+	}
+	lappend cmd <$msg_p
+	if {[catch {set cmt_id [eval git $cmd]} err]} {
+		error_popup "commit-tree failed:\n\n$err"
+		set ui_status_value {Commit failed.}
+		unlock_index
+		return
+	}
+
+	# -- Update the HEAD ref.
+	#
+	set reflogm commit
+	if {$commit_type ne {normal}} {
+		append reflogm " ($commit_type)"
+	}
+	set i [string first "\n" $msg]
+	if {$i >= 0} {
+		set subject [string range $msg 0 [expr {$i - 1}]]
+	} else {
+		set subject $msg
+	}
+	append reflogm {: } $subject
+	if {[catch {
+			git update-ref -m $reflogm HEAD $cmt_id $curHEAD
+		} err]} {
+		error_popup "update-ref failed:\n\n$err"
+		set ui_status_value {Commit failed.}
+		unlock_index
+		return
+	}
+
+	# -- Cleanup after ourselves.
+	#
+	catch {file delete $msg_p}
+	catch {file delete [gitdir MERGE_HEAD]}
+	catch {file delete [gitdir MERGE_MSG]}
+	catch {file delete [gitdir SQUASH_MSG]}
+	catch {file delete [gitdir GITGUI_MSG]}
+
+	# -- Let rerere do its thing.
+	#
+	if {[file isdirectory [gitdir rr-cache]]} {
+		catch {git rerere}
+	}
+
+	# -- Run the post-commit hook.
+	#
+	set pchook [gitdir hooks post-commit]
+	if {[is_Cygwin] && [file isfile $pchook]} {
+		set pchook [list sh -c [concat \
+			"if test -x \"$pchook\";" \
+			"then exec \"$pchook\";" \
+			"fi"]]
+	} elseif {![file executable $pchook]} {
+		set pchook {}
+	}
+	if {$pchook ne {}} {
+		catch {exec $pchook &}
+	}
+
+	$ui_comm delete 0.0 end
+	$ui_comm edit reset
+	$ui_comm edit modified false
+
+	if {[is_enabled singlecommit]} do_quit
+
+	# -- Make sure our current branch exists.
+	#
+	if {$commit_type eq {initial}} {
+		lappend all_heads $current_branch
+		set all_heads [lsort -unique $all_heads]
+		populate_branch_menu
+	}
+
+	# -- Update in memory status
+	#
+	set selected_commit_type new
+	set commit_type normal
+	set HEAD $cmt_id
+	set PARENT $cmt_id
+	set MERGE_HEAD [list]
+
+	foreach path [array names file_states] {
+		set s $file_states($path)
+		set m [lindex $s 0]
+		switch -glob -- $m {
+		_O -
+		_M -
+		_D {continue}
+		__ -
+		A_ -
+		M_ -
+		D_ {
+			unset file_states($path)
+			catch {unset selected_paths($path)}
+		}
+		DO {
+			set file_states($path) [list _O [lindex $s 1] {} {}]
+		}
+		AM -
+		AD -
+		MM -
+		MD {
+			set file_states($path) [list \
+				_[string index $m 1] \
+				[lindex $s 1] \
+				[lindex $s 3] \
+				{}]
+		}
+		}
+	}
+
+	display_all_files
+	unlock_index
+	reshow_diff
+	set ui_status_value \
+		"Created commit [string range $cmt_id 0 7]: $subject"
+}
diff --git a/git-gui/lib/console.tcl b/git-gui/lib/console.tcl
new file mode 100644
index 0000000000..75f3e0463b
--- /dev/null
+++ b/git-gui/lib/console.tcl
@@ -0,0 +1,201 @@
+# git-gui console support
+# Copyright (C) 2006, 2007 Shawn Pearce
+
+namespace eval console {
+
+variable next_console_id 0
+variable console_data
+variable console_cr
+
+proc new {short_title long_title} {
+	variable next_console_id
+	variable console_data
+
+	set w .console[incr next_console_id]
+	set console_data($w) [list $short_title $long_title]
+	return [_init $w]
+}
+
+proc _init {w} {
+	global M1B
+	variable console_cr
+	variable console_data
+
+	set console_cr($w) 1.0
+	toplevel $w
+	frame $w.m
+	label $w.m.l1 -text "[lindex $console_data($w) 1]:" \
+		-anchor w \
+		-justify left \
+		-font font_uibold
+	text $w.m.t \
+		-background white -borderwidth 1 \
+		-relief sunken \
+		-width 80 -height 10 \
+		-font font_diff \
+		-state disabled \
+		-yscrollcommand [list $w.m.sby set]
+	label $w.m.s -text {Working... please wait...} \
+		-anchor w \
+		-justify left \
+		-font font_uibold
+	scrollbar $w.m.sby -command [list $w.m.t yview]
+	pack $w.m.l1 -side top -fill x
+	pack $w.m.s -side bottom -fill x
+	pack $w.m.sby -side right -fill y
+	pack $w.m.t -side left -fill both -expand 1
+	pack $w.m -side top -fill both -expand 1 -padx 5 -pady 10
+
+	menu $w.ctxm -tearoff 0
+	$w.ctxm add command -label "Copy" \
+		-command "tk_textCopy $w.m.t"
+	$w.ctxm add command -label "Select All" \
+		-command "focus $w.m.t;$w.m.t tag add sel 0.0 end"
+	$w.ctxm add command -label "Copy All" \
+		-command "
+			$w.m.t tag add sel 0.0 end
+			tk_textCopy $w.m.t
+			$w.m.t tag remove sel 0.0 end
+		"
+
+	button $w.ok -text {Close} \
+		-state disabled \
+		-command "destroy $w"
+	pack $w.ok -side bottom -anchor e -pady 10 -padx 10
+
+	bind_button3 $w.m.t "tk_popup $w.ctxm %X %Y"
+	bind $w.m.t <$M1B-Key-a> "$w.m.t tag add sel 0.0 end;break"
+	bind $w.m.t <$M1B-Key-A> "$w.m.t tag add sel 0.0 end;break"
+	bind $w <Visibility> "focus $w"
+	wm title $w "[appname] ([reponame]): [lindex $console_data($w) 0]"
+	return $w
+}
+
+proc exec {w cmd {after {}}} {
+	# -- Cygwin's Tcl tosses the enviroment when we exec our child.
+	#    But most users need that so we have to relogin. :-(
+	#
+	if {[is_Cygwin]} {
+		set cmd [list sh --login -c "cd \"[pwd]\" && [join $cmd { }]"]
+	}
+
+	# -- Tcl won't let us redirect both stdout and stderr to
+	#    the same pipe.  So pass it through cat...
+	#
+	set cmd [concat | $cmd |& cat]
+
+	set fd_f [open $cmd r]
+	fconfigure $fd_f -blocking 0 -translation binary
+	fileevent $fd_f readable \
+		[namespace code [list _read $w $fd_f $after]]
+}
+
+proc _read {w fd after} {
+	variable console_cr
+
+	set buf [read $fd]
+	if {$buf ne {}} {
+		if {![winfo exists $w]} {_init $w}
+		$w.m.t conf -state normal
+		set c 0
+		set n [string length $buf]
+		while {$c < $n} {
+			set cr [string first "\r" $buf $c]
+			set lf [string first "\n" $buf $c]
+			if {$cr < 0} {set cr [expr {$n + 1}]}
+			if {$lf < 0} {set lf [expr {$n + 1}]}
+
+			if {$lf < $cr} {
+				$w.m.t insert end [string range $buf $c $lf]
+				set console_cr($w) [$w.m.t index {end -1c}]
+				set c $lf
+				incr c
+			} else {
+				$w.m.t delete $console_cr($w) end
+				$w.m.t insert end "\n"
+				$w.m.t insert end [string range $buf $c $cr]
+				set c $cr
+				incr c
+			}
+		}
+		$w.m.t conf -state disabled
+		$w.m.t see end
+	}
+
+	fconfigure $fd -blocking 1
+	if {[eof $fd]} {
+		if {[catch {close $fd}]} {
+			set ok 0
+		} else {
+			set ok 1
+		}
+		if {$after ne {}} {
+			uplevel #0 $after $w $ok
+		} else {
+			done $w $ok
+		}
+		return
+	}
+	fconfigure $fd -blocking 0
+}
+
+proc chain {cmdlist w {ok 1}} {
+	if {$ok} {
+		if {[llength $cmdlist] == 0} {
+			done $w $ok
+			return
+		}
+
+		set cmd [lindex $cmdlist 0]
+		set cmdlist [lrange $cmdlist 1 end]
+
+		if {[lindex $cmd 0] eq {exec}} {
+			exec $w \
+				[lindex $cmd 1] \
+				[namespace code [list chain $cmdlist]]
+		} else {
+			uplevel #0 $cmd $cmdlist $w $ok
+		}
+	} else {
+		done $w $ok
+	}
+}
+
+proc done {args} {
+	variable console_cr
+	variable console_data
+
+	switch -- [llength $args] {
+	2 {
+		set w [lindex $args 0]
+		set ok [lindex $args 1]
+	}
+	3 {
+		set w [lindex $args 1]
+		set ok [lindex $args 2]
+	}
+	default {
+		error "wrong number of args: done ?ignored? w ok"
+	}
+	}
+
+	if {$ok} {
+		if {[winfo exists $w]} {
+			$w.m.s conf -background green -text {Success}
+			$w.ok conf -state normal
+			focus $w.ok
+		}
+	} else {
+		if {![winfo exists $w]} {
+			_init $w
+		}
+		$w.m.s conf -background red -text {Error: Command Failed}
+		$w.ok conf -state normal
+		focus $w.ok
+	}
+
+	array unset console_cr $w
+	array unset console_data $w
+}
+
+}
diff --git a/git-gui/lib/database.tcl b/git-gui/lib/database.tcl
new file mode 100644
index 0000000000..73058a8269
--- /dev/null
+++ b/git-gui/lib/database.tcl
@@ -0,0 +1,89 @@
+# git-gui object database management support
+# Copyright (C) 2006, 2007 Shawn Pearce
+
+proc do_stats {} {
+	set fd [open "| git count-objects -v" r]
+	while {[gets $fd line] > 0} {
+		if {[regexp {^([^:]+): (\d+)$} $line _ name value]} {
+			set stats($name) $value
+		}
+	}
+	close $fd
+
+	set packed_sz 0
+	foreach p [glob -directory [gitdir objects pack] \
+		-type f \
+		-nocomplain -- *] {
+		incr packed_sz [file size $p]
+	}
+	if {$packed_sz > 0} {
+		set stats(size-pack) [expr {$packed_sz / 1024}]
+	}
+
+	set w .stats_view
+	toplevel $w
+	wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
+
+	label $w.header -text {Database Statistics}
+	pack $w.header -side top -fill x
+
+	frame $w.buttons -border 1
+	button $w.buttons.close -text Close \
+		-default active \
+		-command [list destroy $w]
+	button $w.buttons.gc -text {Compress Database} \
+		-default normal \
+		-command "destroy $w;do_gc"
+	pack $w.buttons.close -side right
+	pack $w.buttons.gc -side left
+	pack $w.buttons -side bottom -fill x -pady 10 -padx 10
+
+	frame $w.stat -borderwidth 1 -relief solid
+	foreach s {
+		{count           {Number of loose objects}}
+		{size            {Disk space used by loose objects} { KiB}}
+		{in-pack         {Number of packed objects}}
+		{packs           {Number of packs}}
+		{size-pack       {Disk space used by packed objects} { KiB}}
+		{prune-packable  {Packed objects waiting for pruning}}
+		{garbage         {Garbage files}}
+		} {
+		set name [lindex $s 0]
+		set label [lindex $s 1]
+		if {[catch {set value $stats($name)}]} continue
+		if {[llength $s] > 2} {
+			set value "$value[lindex $s 2]"
+		}
+
+		label $w.stat.l_$name -text "$label:" -anchor w
+		label $w.stat.v_$name -text $value -anchor w
+		grid $w.stat.l_$name $w.stat.v_$name -sticky we -padx {0 5}
+	}
+	pack $w.stat -pady 10 -padx 10
+
+	bind $w <Visibility> "grab $w; focus $w.buttons.close"
+	bind $w <Key-Escape> [list destroy $w]
+	bind $w <Key-Return> [list destroy $w]
+	wm title $w "[appname] ([reponame]): Database Statistics"
+	tkwait window $w
+}
+
+proc do_gc {} {
+	set w [console::new {gc} {Compressing the object database}]
+	console::chain {
+		{exec {git pack-refs --prune}}
+		{exec {git reflog expire --all}}
+		{exec {git repack -a -d -l}}
+		{exec {git rerere gc}}
+	} $w
+}
+
+proc do_fsck_objects {} {
+	set w [console::new {fsck-objects} \
+		{Verifying the object database with fsck-objects}]
+	set cmd [list git fsck-objects]
+	lappend cmd --full
+	lappend cmd --cache
+	lappend cmd --strict
+	console::exec $w $cmd
+}
diff --git a/git-gui/lib/diff.tcl b/git-gui/lib/diff.tcl
new file mode 100644
index 0000000000..7e715a6865
--- /dev/null
+++ b/git-gui/lib/diff.tcl
@@ -0,0 +1,336 @@
+# git-gui diff viewer
+# Copyright (C) 2006, 2007 Shawn Pearce
+
+proc clear_diff {} {
+	global ui_diff current_diff_path current_diff_header
+	global ui_index ui_workdir
+
+	$ui_diff conf -state normal
+	$ui_diff delete 0.0 end
+	$ui_diff conf -state disabled
+
+	set current_diff_path {}
+	set current_diff_header {}
+
+	$ui_index tag remove in_diff 0.0 end
+	$ui_workdir tag remove in_diff 0.0 end
+}
+
+proc reshow_diff {} {
+	global ui_status_value file_states file_lists
+	global current_diff_path current_diff_side
+
+	set p $current_diff_path
+	if {$p eq {}} {
+		# No diff is being shown.
+	} elseif {$current_diff_side eq {}
+		|| [catch {set s $file_states($p)}]
+		|| [lsearch -sorted -exact $file_lists($current_diff_side) $p] == -1} {
+		clear_diff
+	} else {
+		show_diff $p $current_diff_side
+	}
+}
+
+proc handle_empty_diff {} {
+	global current_diff_path file_states file_lists
+
+	set path $current_diff_path
+	set s $file_states($path)
+	if {[lindex $s 0] ne {_M}} return
+
+	info_popup "No differences detected.
+
+[short_path $path] has no changes.
+
+The modification date of this file was updated by another application, but the content within the file was not changed.
+
+A rescan will be automatically started to find other files which may have the same state."
+
+	clear_diff
+	display_file $path __
+	rescan {set ui_status_value {Ready.}} 0
+}
+
+proc show_diff {path w {lno {}}} {
+	global file_states file_lists
+	global is_3way_diff diff_active repo_config
+	global ui_diff ui_status_value ui_index ui_workdir
+	global current_diff_path current_diff_side current_diff_header
+
+	if {$diff_active || ![lock_index read]} return
+
+	clear_diff
+	if {$lno == {}} {
+		set lno [lsearch -sorted -exact $file_lists($w) $path]
+		if {$lno >= 0} {
+			incr lno
+		}
+	}
+	if {$lno >= 1} {
+		$w tag add in_diff $lno.0 [expr {$lno + 1}].0
+	}
+
+	set s $file_states($path)
+	set m [lindex $s 0]
+	set is_3way_diff 0
+	set diff_active 1
+	set current_diff_path $path
+	set current_diff_side $w
+	set current_diff_header {}
+	set ui_status_value "Loading diff of [escape_path $path]..."
+
+	# - Git won't give us the diff, there's nothing to compare to!
+	#
+	if {$m eq {_O}} {
+		set max_sz [expr {128 * 1024}]
+		if {[catch {
+				set fd [open $path r]
+				set content [read $fd $max_sz]
+				close $fd
+				set sz [file size $path]
+			} err ]} {
+			set diff_active 0
+			unlock_index
+			set ui_status_value "Unable to display [escape_path $path]"
+			error_popup "Error loading file:\n\n$err"
+			return
+		}
+		$ui_diff conf -state normal
+		if {![catch {set type [exec file $path]}]} {
+			set n [string length $path]
+			if {[string equal -length $n $path $type]} {
+				set type [string range $type $n end]
+				regsub {^:?\s*} $type {} type
+			}
+			$ui_diff insert end "* $type\n" d_@
+		}
+		if {[string first "\0" $content] != -1} {
+			$ui_diff insert end \
+				"* Binary file (not showing content)." \
+				d_@
+		} else {
+			if {$sz > $max_sz} {
+				$ui_diff insert end \
+"* Untracked file is $sz bytes.
+* Showing only first $max_sz bytes.
+" d_@
+			}
+			$ui_diff insert end $content
+			if {$sz > $max_sz} {
+				$ui_diff insert end "
+* Untracked file clipped here by [appname].
+* To see the entire file, use an external editor.
+" d_@
+			}
+		}
+		$ui_diff conf -state disabled
+		set diff_active 0
+		unlock_index
+		set ui_status_value {Ready.}
+		return
+	}
+
+	set cmd [list | git]
+	if {$w eq $ui_index} {
+		lappend cmd diff-index
+		lappend cmd --cached
+	} elseif {$w eq $ui_workdir} {
+		if {[string index $m 0] eq {U}} {
+			lappend cmd diff
+		} else {
+			lappend cmd diff-files
+		}
+	}
+
+	lappend cmd -p
+	lappend cmd --no-color
+	if {$repo_config(gui.diffcontext) > 0} {
+		lappend cmd "-U$repo_config(gui.diffcontext)"
+	}
+	if {$w eq $ui_index} {
+		lappend cmd [PARENT]
+	}
+	lappend cmd --
+	lappend cmd $path
+
+	if {[catch {set fd [open $cmd r]} err]} {
+		set diff_active 0
+		unlock_index
+		set ui_status_value "Unable to display [escape_path $path]"
+		error_popup "Error loading diff:\n\n$err"
+		return
+	}
+
+	fconfigure $fd \
+		-blocking 0 \
+		-encoding binary \
+		-translation binary
+	fileevent $fd readable [list read_diff $fd]
+}
+
+proc read_diff {fd} {
+	global ui_diff ui_status_value diff_active
+	global is_3way_diff current_diff_header
+
+	$ui_diff conf -state normal
+	while {[gets $fd line] >= 0} {
+		# -- Cleanup uninteresting diff header lines.
+		#
+		if {   [string match {diff --git *}      $line]
+			|| [string match {diff --cc *}       $line]
+			|| [string match {diff --combined *} $line]
+			|| [string match {--- *}             $line]
+			|| [string match {+++ *}             $line]} {
+			append current_diff_header $line "\n"
+			continue
+		}
+		if {[string match {index *} $line]} continue
+		if {$line eq {deleted file mode 120000}} {
+			set line "deleted symlink"
+		}
+
+		# -- Automatically detect if this is a 3 way diff.
+		#
+		if {[string match {@@@ *} $line]} {set is_3way_diff 1}
+
+		if {[string match {mode *} $line]
+			|| [string match {new file *} $line]
+			|| [string match {deleted file *} $line]
+			|| [string match {Binary files * and * differ} $line]
+			|| $line eq {\ No newline at end of file}
+			|| [regexp {^\* Unmerged path } $line]} {
+			set tags {}
+		} elseif {$is_3way_diff} {
+			set op [string range $line 0 1]
+			switch -- $op {
+			{  } {set tags {}}
+			{@@} {set tags d_@}
+			{ +} {set tags d_s+}
+			{ -} {set tags d_s-}
+			{+ } {set tags d_+s}
+			{- } {set tags d_-s}
+			{--} {set tags d_--}
+			{++} {
+				if {[regexp {^\+\+([<>]{7} |={7})} $line _g op]} {
+					set line [string replace $line 0 1 {  }]
+					set tags d$op
+				} else {
+					set tags d_++
+				}
+			}
+			default {
+				puts "error: Unhandled 3 way diff marker: {$op}"
+				set tags {}
+			}
+			}
+		} else {
+			set op [string index $line 0]
+			switch -- $op {
+			{ } {set tags {}}
+			{@} {set tags d_@}
+			{-} {set tags d_-}
+			{+} {
+				if {[regexp {^\+([<>]{7} |={7})} $line _g op]} {
+					set line [string replace $line 0 0 { }]
+					set tags d$op
+				} else {
+					set tags d_+
+				}
+			}
+			default {
+				puts "error: Unhandled 2 way diff marker: {$op}"
+				set tags {}
+			}
+			}
+		}
+		$ui_diff insert end $line $tags
+		if {[string index $line end] eq "\r"} {
+			$ui_diff tag add d_cr {end - 2c}
+		}
+		$ui_diff insert end "\n" $tags
+	}
+	$ui_diff conf -state disabled
+
+	if {[eof $fd]} {
+		close $fd
+		set diff_active 0
+		unlock_index
+		set ui_status_value {Ready.}
+
+		if {[$ui_diff index end] eq {2.0}} {
+			handle_empty_diff
+		}
+	}
+}
+
+proc apply_hunk {x y} {
+	global current_diff_path current_diff_header current_diff_side
+	global ui_diff ui_index file_states
+
+	if {$current_diff_path eq {} || $current_diff_header eq {}} return
+	if {![lock_index apply_hunk]} return
+
+	set apply_cmd {git apply --cached --whitespace=nowarn}
+	set mi [lindex $file_states($current_diff_path) 0]
+	if {$current_diff_side eq $ui_index} {
+		set mode unstage
+		lappend apply_cmd --reverse
+		if {[string index $mi 0] ne {M}} {
+			unlock_index
+			return
+		}
+	} else {
+		set mode stage
+		if {[string index $mi 1] ne {M}} {
+			unlock_index
+			return
+		}
+	}
+
+	set s_lno [lindex [split [$ui_diff index @$x,$y] .] 0]
+	set s_lno [$ui_diff search -backwards -regexp ^@@ $s_lno.0 0.0]
+	if {$s_lno eq {}} {
+		unlock_index
+		return
+	}
+
+	set e_lno [$ui_diff search -forwards -regexp ^@@ "$s_lno + 1 lines" end]
+	if {$e_lno eq {}} {
+		set e_lno end
+	}
+
+	if {[catch {
+		set p [open "| $apply_cmd" w]
+		fconfigure $p -translation binary -encoding binary
+		puts -nonewline $p $current_diff_header
+		puts -nonewline $p [$ui_diff get $s_lno $e_lno]
+		close $p} err]} {
+		error_popup "Failed to $mode selected hunk.\n\n$err"
+		unlock_index
+		return
+	}
+
+	$ui_diff conf -state normal
+	$ui_diff delete $s_lno $e_lno
+	$ui_diff conf -state disabled
+
+	if {[$ui_diff get 1.0 end] eq "\n"} {
+		set o _
+	} else {
+		set o ?
+	}
+
+	if {$current_diff_side eq $ui_index} {
+		set mi ${o}M
+	} elseif {[string index $mi 0] eq {_}} {
+		set mi M$o
+	} else {
+		set mi ?$o
+	}
+	unlock_index
+	display_file $current_diff_path $mi
+	if {$o eq {_}} {
+		clear_diff
+	}
+}
diff --git a/git-gui/lib/error.tcl b/git-gui/lib/error.tcl
new file mode 100644
index 0000000000..d0253ae2ff
--- /dev/null
+++ b/git-gui/lib/error.tcl
@@ -0,0 +1,101 @@
+# git-gui branch (create/delete) support
+# Copyright (C) 2006, 2007 Shawn Pearce
+
+proc error_popup {msg} {
+	set title [appname]
+	if {[reponame] ne {}} {
+		append title " ([reponame])"
+	}
+	set cmd [list tk_messageBox \
+		-icon error \
+		-type ok \
+		-title "$title: error" \
+		-message $msg]
+	if {[winfo ismapped .]} {
+		lappend cmd -parent .
+	}
+	eval $cmd
+}
+
+proc warn_popup {msg} {
+	set title [appname]
+	if {[reponame] ne {}} {
+		append title " ([reponame])"
+	}
+	set cmd [list tk_messageBox \
+		-icon warning \
+		-type ok \
+		-title "$title: warning" \
+		-message $msg]
+	if {[winfo ismapped .]} {
+		lappend cmd -parent .
+	}
+	eval $cmd
+}
+
+proc info_popup {msg {parent .}} {
+	set title [appname]
+	if {[reponame] ne {}} {
+		append title " ([reponame])"
+	}
+	tk_messageBox \
+		-parent $parent \
+		-icon info \
+		-type ok \
+		-title $title \
+		-message $msg
+}
+
+proc ask_popup {msg} {
+	set title [appname]
+	if {[reponame] ne {}} {
+		append title " ([reponame])"
+	}
+	return [tk_messageBox \
+		-parent . \
+		-icon question \
+		-type yesno \
+		-title $title \
+		-message $msg]
+}
+
+proc hook_failed_popup {hook msg} {
+	set w .hookfail
+	toplevel $w
+
+	frame $w.m
+	label $w.m.l1 -text "$hook hook failed:" \
+		-anchor w \
+		-justify left \
+		-font font_uibold
+	text $w.m.t \
+		-background white -borderwidth 1 \
+		-relief sunken \
+		-width 80 -height 10 \
+		-font font_diff \
+		-yscrollcommand [list $w.m.sby set]
+	label $w.m.l2 \
+		-text {You must correct the above errors before committing.} \
+		-anchor w \
+		-justify left \
+		-font font_uibold
+	scrollbar $w.m.sby -command [list $w.m.t yview]
+	pack $w.m.l1 -side top -fill x
+	pack $w.m.l2 -side bottom -fill x
+	pack $w.m.sby -side right -fill y
+	pack $w.m.t -side left -fill both -expand 1
+	pack $w.m -side top -fill both -expand 1 -padx 5 -pady 10
+
+	$w.m.t insert 1.0 $msg
+	$w.m.t conf -state disabled
+
+	button $w.ok -text OK \
+		-width 15 \
+		-command "destroy $w"
+	pack $w.ok -side bottom -anchor e -pady 10 -padx 10
+
+	bind $w <Visibility> "grab $w; focus $w"
+	bind $w <Key-Return> "destroy $w"
+	wm title $w "[appname] ([reponame]): error"
+	tkwait window $w
+}
diff --git a/git-gui/lib/index.tcl b/git-gui/lib/index.tcl
new file mode 100644
index 0000000000..42742850ee
--- /dev/null
+++ b/git-gui/lib/index.tcl
@@ -0,0 +1,409 @@
+# git-gui index (add/remove) support
+# Copyright (C) 2006, 2007 Shawn Pearce
+
+proc update_indexinfo {msg pathList after} {
+	global update_index_cp ui_status_value
+
+	if {![lock_index update]} return
+
+	set update_index_cp 0
+	set pathList [lsort $pathList]
+	set totalCnt [llength $pathList]
+	set batch [expr {int($totalCnt * .01) + 1}]
+	if {$batch > 25} {set batch 25}
+
+	set ui_status_value [format \
+		"$msg... %i/%i files (%.2f%%)" \
+		$update_index_cp \
+		$totalCnt \
+		0.0]
+	set fd [open "| git update-index -z --index-info" w]
+	fconfigure $fd \
+		-blocking 0 \
+		-buffering full \
+		-buffersize 512 \
+		-encoding binary \
+		-translation binary
+	fileevent $fd writable [list \
+		write_update_indexinfo \
+		$fd \
+		$pathList \
+		$totalCnt \
+		$batch \
+		$msg \
+		$after \
+		]
+}
+
+proc write_update_indexinfo {fd pathList totalCnt batch msg after} {
+	global update_index_cp ui_status_value
+	global file_states current_diff_path
+
+	if {$update_index_cp >= $totalCnt} {
+		close $fd
+		unlock_index
+		uplevel #0 $after
+		return
+	}
+
+	for {set i $batch} \
+		{$update_index_cp < $totalCnt && $i > 0} \
+		{incr i -1} {
+		set path [lindex $pathList $update_index_cp]
+		incr update_index_cp
+
+		set s $file_states($path)
+		switch -glob -- [lindex $s 0] {
+		A? {set new _O}
+		M? {set new _M}
+		D_ {set new _D}
+		D? {set new _?}
+		?? {continue}
+		}
+		set info [lindex $s 2]
+		if {$info eq {}} continue
+
+		puts -nonewline $fd "$info\t[encoding convertto $path]\0"
+		display_file $path $new
+	}
+
+	set ui_status_value [format \
+		"$msg... %i/%i files (%.2f%%)" \
+		$update_index_cp \
+		$totalCnt \
+		[expr {100.0 * $update_index_cp / $totalCnt}]]
+}
+
+proc update_index {msg pathList after} {
+	global update_index_cp ui_status_value
+
+	if {![lock_index update]} return
+
+	set update_index_cp 0
+	set pathList [lsort $pathList]
+	set totalCnt [llength $pathList]
+	set batch [expr {int($totalCnt * .01) + 1}]
+	if {$batch > 25} {set batch 25}
+
+	set ui_status_value [format \
+		"$msg... %i/%i files (%.2f%%)" \
+		$update_index_cp \
+		$totalCnt \
+		0.0]
+	set fd [open "| git update-index --add --remove -z --stdin" w]
+	fconfigure $fd \
+		-blocking 0 \
+		-buffering full \
+		-buffersize 512 \
+		-encoding binary \
+		-translation binary
+	fileevent $fd writable [list \
+		write_update_index \
+		$fd \
+		$pathList \
+		$totalCnt \
+		$batch \
+		$msg \
+		$after \
+		]
+}
+
+proc write_update_index {fd pathList totalCnt batch msg after} {
+	global update_index_cp ui_status_value
+	global file_states current_diff_path
+
+	if {$update_index_cp >= $totalCnt} {
+		close $fd
+		unlock_index
+		uplevel #0 $after
+		return
+	}
+
+	for {set i $batch} \
+		{$update_index_cp < $totalCnt && $i > 0} \
+		{incr i -1} {
+		set path [lindex $pathList $update_index_cp]
+		incr update_index_cp
+
+		switch -glob -- [lindex $file_states($path) 0] {
+		AD {set new __}
+		?D {set new D_}
+		_O -
+		AM {set new A_}
+		U? {
+			if {[file exists $path]} {
+				set new M_
+			} else {
+				set new D_
+			}
+		}
+		?M {set new M_}
+		?? {continue}
+		}
+		puts -nonewline $fd "[encoding convertto $path]\0"
+		display_file $path $new
+	}
+
+	set ui_status_value [format \
+		"$msg... %i/%i files (%.2f%%)" \
+		$update_index_cp \
+		$totalCnt \
+		[expr {100.0 * $update_index_cp / $totalCnt}]]
+}
+
+proc checkout_index {msg pathList after} {
+	global update_index_cp ui_status_value
+
+	if {![lock_index update]} return
+
+	set update_index_cp 0
+	set pathList [lsort $pathList]
+	set totalCnt [llength $pathList]
+	set batch [expr {int($totalCnt * .01) + 1}]
+	if {$batch > 25} {set batch 25}
+
+	set ui_status_value [format \
+		"$msg... %i/%i files (%.2f%%)" \
+		$update_index_cp \
+		$totalCnt \
+		0.0]
+	set cmd [list git checkout-index]
+	lappend cmd --index
+	lappend cmd --quiet
+	lappend cmd --force
+	lappend cmd -z
+	lappend cmd --stdin
+	set fd [open "| $cmd " w]
+	fconfigure $fd \
+		-blocking 0 \
+		-buffering full \
+		-buffersize 512 \
+		-encoding binary \
+		-translation binary
+	fileevent $fd writable [list \
+		write_checkout_index \
+		$fd \
+		$pathList \
+		$totalCnt \
+		$batch \
+		$msg \
+		$after \
+		]
+}
+
+proc write_checkout_index {fd pathList totalCnt batch msg after} {
+	global update_index_cp ui_status_value
+	global file_states current_diff_path
+
+	if {$update_index_cp >= $totalCnt} {
+		close $fd
+		unlock_index
+		uplevel #0 $after
+		return
+	}
+
+	for {set i $batch} \
+		{$update_index_cp < $totalCnt && $i > 0} \
+		{incr i -1} {
+		set path [lindex $pathList $update_index_cp]
+		incr update_index_cp
+		switch -glob -- [lindex $file_states($path) 0] {
+		U? {continue}
+		?M -
+		?D {
+			puts -nonewline $fd "[encoding convertto $path]\0"
+			display_file $path ?_
+		}
+		}
+	}
+
+	set ui_status_value [format \
+		"$msg... %i/%i files (%.2f%%)" \
+		$update_index_cp \
+		$totalCnt \
+		[expr {100.0 * $update_index_cp / $totalCnt}]]
+}
+
+proc unstage_helper {txt paths} {
+	global file_states current_diff_path
+
+	if {![lock_index begin-update]} return
+
+	set pathList [list]
+	set after {}
+	foreach path $paths {
+		switch -glob -- [lindex $file_states($path) 0] {
+		A? -
+		M? -
+		D? {
+			lappend pathList $path
+			if {$path eq $current_diff_path} {
+				set after {reshow_diff;}
+			}
+		}
+		}
+	}
+	if {$pathList eq {}} {
+		unlock_index
+	} else {
+		update_indexinfo \
+			$txt \
+			$pathList \
+			[concat $after {set ui_status_value {Ready.}}]
+	}
+}
+
+proc do_unstage_selection {} {
+	global current_diff_path selected_paths
+
+	if {[array size selected_paths] > 0} {
+		unstage_helper \
+			{Unstaging selected files from commit} \
+			[array names selected_paths]
+	} elseif {$current_diff_path ne {}} {
+		unstage_helper \
+			"Unstaging [short_path $current_diff_path] from commit" \
+			[list $current_diff_path]
+	}
+}
+
+proc add_helper {txt paths} {
+	global file_states current_diff_path
+
+	if {![lock_index begin-update]} return
+
+	set pathList [list]
+	set after {}
+	foreach path $paths {
+		switch -glob -- [lindex $file_states($path) 0] {
+		_O -
+		?M -
+		?D -
+		U? {
+			lappend pathList $path
+			if {$path eq $current_diff_path} {
+				set after {reshow_diff;}
+			}
+		}
+		}
+	}
+	if {$pathList eq {}} {
+		unlock_index
+	} else {
+		update_index \
+			$txt \
+			$pathList \
+			[concat $after {set ui_status_value {Ready to commit.}}]
+	}
+}
+
+proc do_add_selection {} {
+	global current_diff_path selected_paths
+
+	if {[array size selected_paths] > 0} {
+		add_helper \
+			{Adding selected files} \
+			[array names selected_paths]
+	} elseif {$current_diff_path ne {}} {
+		add_helper \
+			"Adding [short_path $current_diff_path]" \
+			[list $current_diff_path]
+	}
+}
+
+proc do_add_all {} {
+	global file_states
+
+	set paths [list]
+	foreach path [array names file_states] {
+		switch -glob -- [lindex $file_states($path) 0] {
+		U? {continue}
+		?M -
+		?D {lappend paths $path}
+		}
+	}
+	add_helper {Adding all changed files} $paths
+}
+
+proc revert_helper {txt paths} {
+	global file_states current_diff_path
+
+	if {![lock_index begin-update]} return
+
+	set pathList [list]
+	set after {}
+	foreach path $paths {
+		switch -glob -- [lindex $file_states($path) 0] {
+		U? {continue}
+		?M -
+		?D {
+			lappend pathList $path
+			if {$path eq $current_diff_path} {
+				set after {reshow_diff;}
+			}
+		}
+		}
+	}
+
+	set n [llength $pathList]
+	if {$n == 0} {
+		unlock_index
+		return
+	} elseif {$n == 1} {
+		set s "[short_path [lindex $pathList]]"
+	} else {
+		set s "these $n files"
+	}
+
+	set reply [tk_dialog \
+		.confirm_revert \
+		"[appname] ([reponame])" \
+		"Revert changes in $s?
+
+Any unadded changes will be permanently lost by the revert." \
+		question \
+		1 \
+		{Do Nothing} \
+		{Revert Changes} \
+		]
+	if {$reply == 1} {
+		checkout_index \
+			$txt \
+			$pathList \
+			[concat $after {set ui_status_value {Ready.}}]
+	} else {
+		unlock_index
+	}
+}
+
+proc do_revert_selection {} {
+	global current_diff_path selected_paths
+
+	if {[array size selected_paths] > 0} {
+		revert_helper \
+			{Reverting selected files} \
+			[array names selected_paths]
+	} elseif {$current_diff_path ne {}} {
+		revert_helper \
+			"Reverting [short_path $current_diff_path]" \
+			[list $current_diff_path]
+	}
+}
+
+proc do_select_commit_type {} {
+	global commit_type selected_commit_type
+
+	if {$selected_commit_type eq {new}
+		&& [string match amend* $commit_type]} {
+		create_new_commit
+	} elseif {$selected_commit_type eq {amend}
+		&& ![string match amend* $commit_type]} {
+		load_last_commit
+
+		# The amend request was rejected...
+		#
+		if {![string match amend* $commit_type]} {
+			set selected_commit_type new
+		}
+	}
+}
diff --git a/git-gui/lib/merge.tcl b/git-gui/lib/merge.tcl
new file mode 100644
index 0000000000..3dce856e5e
--- /dev/null
+++ b/git-gui/lib/merge.tcl
@@ -0,0 +1,309 @@
+# git-gui branch merge support
+# Copyright (C) 2006, 2007 Shawn Pearce
+
+namespace eval merge {
+
+proc _can_merge {} {
+	global HEAD commit_type file_states
+
+	if {[string match amend* $commit_type]} {
+		info_popup {Cannot merge while amending.
+
+You must finish amending this commit before starting any type of merge.
+}
+		return 0
+	}
+
+	if {[committer_ident] eq {}} {return 0}
+	if {![lock_index merge]} {return 0}
+
+	# -- Our in memory state should match the repository.
+	#
+	repository_state curType curHEAD curMERGE_HEAD
+	if {$commit_type ne $curType || $HEAD ne $curHEAD} {
+		info_popup {Last scanned state does not match repository state.
+
+Another Git program has modified this repository since the last scan.  A rescan must be performed before a merge can be performed.
+
+The rescan will be automatically started now.
+}
+		unlock_index
+		rescan {set ui_status_value {Ready.}}
+		return 0
+	}
+
+	foreach path [array names file_states] {
+		switch -glob -- [lindex $file_states($path) 0] {
+		_O {
+			continue; # and pray it works!
+		}
+		U? {
+			error_popup "You are in the middle of a conflicted merge.
+
+File [short_path $path] has merge conflicts.
+
+You must resolve them, add the file, and commit to complete the current merge.  Only then can you begin another merge.
+"
+			unlock_index
+			return 0
+		}
+		?? {
+			error_popup "You are in the middle of a change.
+
+File [short_path $path] is modified.
+
+You should complete the current commit before starting a merge.  Doing so will help you abort a failed merge, should the need arise.
+"
+			unlock_index
+			return 0
+		}
+		}
+	}
+
+	return 1
+}
+
+proc _refs {w list} {
+	set r {}
+	foreach i [$w.source.l curselection] {
+		lappend r [lindex [lindex $list $i] 0]
+	}
+	return $r
+}
+
+proc _visualize {w list} {
+	set revs [_refs $w $list]
+	if {$revs eq {}} return
+	lappend revs --not HEAD
+	do_gitk $revs
+}
+
+proc _start {w list} {
+	global HEAD ui_status_value current_branch
+
+	set cmd [list git merge]
+	set names [_refs $w $list]
+	set revcnt [llength $names]
+	append cmd { } $names
+
+	if {$revcnt == 0} {
+		return
+	} elseif {$revcnt == 1} {
+		set unit branch
+	} elseif {$revcnt <= 15} {
+		set unit branches
+
+		if {[tk_dialog \
+		$w.confirm_octopus \
+		[wm title $w] \
+		"Use octopus merge strategy?
+
+You are merging $revcnt branches at once.  This requires using the octopus merge driver, which may not succeed if there are file-level conflicts.
+" \
+		question \
+		0 \
+		{Cancel} \
+		{Use octopus} \
+		] != 1} return
+	} else {
+		tk_messageBox \
+			-icon error \
+			-type ok \
+			-title [wm title $w] \
+			-parent $w \
+			-message "Too many branches selected.
+
+You have requested to merge $revcnt branches in an octopus merge.  This exceeds Git's internal limit of 15 branches per merge.
+
+Please select fewer branches.  To merge more than 15 branches, merge the branches in batches.
+"
+		return
+	}
+
+	set msg "Merging $current_branch, [join $names {, }]"
+	set ui_status_value "$msg..."
+	set cons [console::new "Merge" $msg]
+	console::exec $cons $cmd [namespace code [list _finish $revcnt]]
+	bind $w <Destroy> {}
+	destroy $w
+}
+
+proc _finish {revcnt w ok} {
+	console::done $w $ok
+	if {$ok} {
+		set msg {Merge completed successfully.}
+	} else {
+		if {$revcnt != 1} {
+			info_popup "Octopus merge failed.
+
+Your merge of $revcnt branches has failed.
+
+There are file-level conflicts between the branches which must be resolved manually.
+
+The working directory will now be reset.
+
+You can attempt this merge again by merging only one branch at a time." $w
+
+			set fd [open "| git read-tree --reset -u HEAD" r]
+			fconfigure $fd -blocking 0 -translation binary
+			fileevent $fd readable \
+				[namespace code [list _reset_wait $fd]]
+			set ui_status_value {Aborting... please wait...}
+			return
+		}
+
+		set msg {Merge failed.  Conflict resolution is required.}
+	}
+	unlock_index
+	rescan [list set ui_status_value $msg]
+}
+
+proc dialog {} {
+	global current_branch
+	global M1B
+
+	if {![_can_merge]} return
+
+	set fmt {list %(objectname) %(*objectname) %(refname) %(subject)}
+	set cmd [list git for-each-ref --tcl --format=$fmt]
+	lappend cmd refs/heads
+	lappend cmd refs/remotes
+	lappend cmd refs/tags
+	set fr_fd [open "| $cmd" r]
+	fconfigure $fr_fd -translation binary
+	while {[gets $fr_fd line] > 0} {
+		set line [eval $line]
+		set ref [lindex $line 2]
+		regsub ^refs/(heads|remotes|tags)/ $ref {} ref
+		set subj($ref) [lindex $line 3]
+		lappend sha1([lindex $line 0]) $ref
+		if {[lindex $line 1] ne {}} {
+			lappend sha1([lindex $line 1]) $ref
+		}
+	}
+	close $fr_fd
+
+	set to_show {}
+	set fr_fd [open "| git rev-list --all --not HEAD"]
+	while {[gets $fr_fd line] > 0} {
+		if {[catch {set ref $sha1($line)}]} continue
+		foreach n $ref {
+			lappend to_show [list $n $line]
+		}
+	}
+	close $fr_fd
+	set to_show [lsort -unique $to_show]
+
+	set w .merge_setup
+	toplevel $w
+	wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
+
+	set _visualize [namespace code [list _visualize $w $to_show]]
+	set _start [namespace code [list _start $w $to_show]]
+
+	label $w.header \
+		-text "Merge Into $current_branch" \
+		-font font_uibold
+	pack $w.header -side top -fill x
+
+	frame $w.buttons
+	button $w.buttons.visualize -text Visualize -command $_visualize
+	pack $w.buttons.visualize -side left
+	button $w.buttons.create -text Merge -command $_start
+	pack $w.buttons.create -side right
+	button $w.buttons.cancel -text {Cancel} -command [list destroy $w]
+	pack $w.buttons.cancel -side right -padx 5
+	pack $w.buttons -side bottom -fill x -pady 10 -padx 10
+
+	labelframe $w.source -text {Source Branches}
+	listbox $w.source.l \
+		-height 10 \
+		-width 70 \
+		-font font_diff \
+		-selectmode extended \
+		-yscrollcommand [list $w.source.sby set]
+	scrollbar $w.source.sby -command [list $w.source.l yview]
+	pack $w.source.sby -side right -fill y
+	pack $w.source.l -side left -fill both -expand 1
+	pack $w.source -fill both -expand 1 -pady 5 -padx 5
+
+	foreach ref $to_show {
+		set n [lindex $ref 0]
+		if {[string length $n] > 20} {
+			set n "[string range $n 0 16]..."
+		}
+		$w.source.l insert end [format {%s %-20s %s} \
+			[string range [lindex $ref 1] 0 5] \
+			$n \
+			$subj([lindex $ref 0])]
+	}
+
+	bind $w.source.l <Key-k> [list event generate %W <Key-Up>]
+	bind $w.source.l <Key-j> [list event generate %W <Key-Down>]
+	bind $w.source.l <Key-h> [list event generate %W <Key-Left>]
+	bind $w.source.l <Key-l> [list event generate %W <Key-Right>]
+	bind $w.source.l <Key-v> $_visualize
+
+	bind $w <$M1B-Key-Return> $_start
+	bind $w <Visibility> "grab $w; focus $w.source.l"
+	bind $w <Key-Escape> "unlock_index;destroy $w"
+	bind $w <Destroy> unlock_index
+	wm title $w "[appname] ([reponame]): Merge"
+	tkwait window $w
+}
+
+proc reset_hard {} {
+	global HEAD commit_type file_states
+
+	if {[string match amend* $commit_type]} {
+		info_popup {Cannot abort while amending.
+
+You must finish amending this commit.
+}
+		return
+	}
+
+	if {![lock_index abort]} return
+
+	if {[string match *merge* $commit_type]} {
+		set op merge
+	} else {
+		set op commit
+	}
+
+	if {[ask_popup "Abort $op?
+
+Aborting the current $op will cause *ALL* uncommitted changes to be lost.
+
+Continue with aborting the current $op?"] eq {yes}} {
+		set fd [open "| git read-tree --reset -u HEAD" r]
+		fconfigure $fd -blocking 0 -translation binary
+		fileevent $fd readable [namespace code [list _reset_wait $fd]]
+		set ui_status_value {Aborting... please wait...}
+	} else {
+		unlock_index
+	}
+}
+
+proc _reset_wait {fd} {
+	global ui_comm
+
+	read $fd
+	if {[eof $fd]} {
+		close $fd
+		unlock_index
+
+		$ui_comm delete 0.0 end
+		$ui_comm edit modified false
+
+		catch {file delete [gitdir MERGE_HEAD]}
+		catch {file delete [gitdir rr-cache MERGE_RR]}
+		catch {file delete [gitdir SQUASH_MSG]}
+		catch {file delete [gitdir MERGE_MSG]}
+		catch {file delete [gitdir GITGUI_MSG]}
+
+		rescan {set ui_status_value {Abort completed.  Ready.}}
+	}
+}
+
+}
diff --git a/git-gui/lib/option.tcl b/git-gui/lib/option.tcl
new file mode 100644
index 0000000000..17fcc65f78
--- /dev/null
+++ b/git-gui/lib/option.tcl
@@ -0,0 +1,290 @@
+# git-gui options editor
+# Copyright (C) 2006, 2007 Shawn Pearce
+
+proc save_config {} {
+	global default_config font_descs
+	global repo_config global_config
+	global repo_config_new global_config_new
+
+	foreach option $font_descs {
+		set name [lindex $option 0]
+		set font [lindex $option 1]
+		font configure $font \
+			-family $global_config_new(gui.$font^^family) \
+			-size $global_config_new(gui.$font^^size)
+		font configure ${font}bold \
+			-family $global_config_new(gui.$font^^family) \
+			-size $global_config_new(gui.$font^^size)
+		set global_config_new(gui.$name) [font configure $font]
+		unset global_config_new(gui.$font^^family)
+		unset global_config_new(gui.$font^^size)
+	}
+
+	foreach name [array names default_config] {
+		set value $global_config_new($name)
+		if {$value ne $global_config($name)} {
+			if {$value eq $default_config($name)} {
+				catch {git config --global --unset $name}
+			} else {
+				regsub -all "\[{}\]" $value {"} value
+				git config --global $name $value
+			}
+			set global_config($name) $value
+			if {$value eq $repo_config($name)} {
+				catch {git config --unset $name}
+				set repo_config($name) $value
+			}
+		}
+	}
+
+	foreach name [array names default_config] {
+		set value $repo_config_new($name)
+		if {$value ne $repo_config($name)} {
+			if {$value eq $global_config($name)} {
+				catch {git config --unset $name}
+			} else {
+				regsub -all "\[{}\]" $value {"} value
+				git config $name $value
+			}
+			set repo_config($name) $value
+		}
+	}
+}
+
+proc do_about {} {
+	global appvers copyright
+	global tcl_patchLevel tk_patchLevel
+
+	set w .about_dialog
+	toplevel $w
+	wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
+
+	label $w.header -text "About [appname]" \
+		-font font_uibold
+	pack $w.header -side top -fill x
+
+	frame $w.buttons
+	button $w.buttons.close -text {Close} \
+		-default active \
+		-command [list destroy $w]
+	pack $w.buttons.close -side right
+	pack $w.buttons -side bottom -fill x -pady 10 -padx 10
+
+	label $w.desc \
+		-text "git-gui - a graphical user interface for Git.
+$copyright" \
+		-padx 5 -pady 5 \
+		-justify left \
+		-anchor w \
+		-borderwidth 1 \
+		-relief solid
+	pack $w.desc -side top -fill x -padx 5 -pady 5
+
+	set v {}
+	append v "git-gui version $appvers\n"
+	append v "[git version]\n"
+	append v "\n"
+	if {$tcl_patchLevel eq $tk_patchLevel} {
+		append v "Tcl/Tk version $tcl_patchLevel"
+	} else {
+		append v "Tcl version $tcl_patchLevel"
+		append v ", Tk version $tk_patchLevel"
+	}
+
+	label $w.vers \
+		-text $v \
+		-padx 5 -pady 5 \
+		-justify left \
+		-anchor w \
+		-borderwidth 1 \
+		-relief solid
+	pack $w.vers -side top -fill x -padx 5 -pady 5
+
+	menu $w.ctxm -tearoff 0
+	$w.ctxm add command \
+		-label {Copy} \
+		-command "
+		clipboard clear
+		clipboard append -format STRING -type STRING -- \[$w.vers cget -text\]
+	"
+
+	bind $w <Visibility> "grab $w; focus $w.buttons.close"
+	bind $w <Key-Escape> "destroy $w"
+	bind $w <Key-Return> "destroy $w"
+	bind_button3 $w.vers "tk_popup $w.ctxm %X %Y; grab $w; focus $w"
+	wm title $w "About [appname]"
+	tkwait window $w
+}
+
+proc do_options {} {
+	global repo_config global_config font_descs
+	global repo_config_new global_config_new
+
+	array unset repo_config_new
+	array unset global_config_new
+	foreach name [array names repo_config] {
+		set repo_config_new($name) $repo_config($name)
+	}
+	load_config 1
+	foreach name [array names repo_config] {
+		switch -- $name {
+		gui.diffcontext {continue}
+		}
+		set repo_config_new($name) $repo_config($name)
+	}
+	foreach name [array names global_config] {
+		set global_config_new($name) $global_config($name)
+	}
+
+	set w .options_editor
+	toplevel $w
+	wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
+
+	label $w.header -text "Options" \
+		-font font_uibold
+	pack $w.header -side top -fill x
+
+	frame $w.buttons
+	button $w.buttons.restore -text {Restore Defaults} \
+		-default normal \
+		-command do_restore_defaults
+	pack $w.buttons.restore -side left
+	button $w.buttons.save -text Save \
+		-default active \
+		-command [list do_save_config $w]
+	pack $w.buttons.save -side right
+	button $w.buttons.cancel -text {Cancel} \
+		-default normal \
+		-command [list destroy $w]
+	pack $w.buttons.cancel -side right -padx 5
+	pack $w.buttons -side bottom -fill x -pady 10 -padx 10
+
+	labelframe $w.repo -text "[reponame] Repository"
+	labelframe $w.global -text {Global (All Repositories)}
+	pack $w.repo -side left -fill both -expand 1 -pady 5 -padx 5
+	pack $w.global -side right -fill both -expand 1 -pady 5 -padx 5
+
+	set optid 0
+	foreach option {
+		{t user.name {User Name}}
+		{t user.email {Email Address}}
+
+		{b merge.summary {Summarize Merge Commits}}
+		{i-1..5 merge.verbosity {Merge Verbosity}}
+
+		{b gui.trustmtime  {Trust File Modification Timestamps}}
+		{i-1..99 gui.diffcontext {Number of Diff Context Lines}}
+		{t gui.newbranchtemplate {New Branch Name Template}}
+		} {
+		set type [lindex $option 0]
+		set name [lindex $option 1]
+		set text [lindex $option 2]
+		incr optid
+		foreach f {repo global} {
+			switch -glob -- $type {
+			b {
+				checkbutton $w.$f.$optid -text $text \
+					-variable ${f}_config_new($name) \
+					-onvalue true \
+					-offvalue false
+				pack $w.$f.$optid -side top -anchor w
+			}
+			i-* {
+				regexp -- {-(\d+)\.\.(\d+)$} $type _junk min max
+				frame $w.$f.$optid
+				label $w.$f.$optid.l -text "$text:"
+				pack $w.$f.$optid.l -side left -anchor w -fill x
+				spinbox $w.$f.$optid.v \
+					-textvariable ${f}_config_new($name) \
+					-from $min \
+					-to $max \
+					-increment 1 \
+					-width [expr {1 + [string length $max]}]
+				bind $w.$f.$optid.v <FocusIn> {%W selection range 0 end}
+				pack $w.$f.$optid.v -side right -anchor e -padx 5
+				pack $w.$f.$optid -side top -anchor w -fill x
+			}
+			t {
+				frame $w.$f.$optid
+				label $w.$f.$optid.l -text "$text:"
+				entry $w.$f.$optid.v \
+					-borderwidth 1 \
+					-relief sunken \
+					-width 20 \
+					-textvariable ${f}_config_new($name)
+				pack $w.$f.$optid.l -side left -anchor w
+				pack $w.$f.$optid.v -side left -anchor w \
+					-fill x -expand 1 \
+					-padx 5
+				pack $w.$f.$optid -side top -anchor w -fill x
+			}
+			}
+		}
+	}
+
+	set all_fonts [lsort [font families]]
+	foreach option $font_descs {
+		set name [lindex $option 0]
+		set font [lindex $option 1]
+		set text [lindex $option 2]
+
+		set global_config_new(gui.$font^^family) \
+			[font configure $font -family]
+		set global_config_new(gui.$font^^size) \
+			[font configure $font -size]
+
+		frame $w.global.$name
+		label $w.global.$name.l -text "$text:"
+		pack $w.global.$name.l -side left -anchor w -fill x
+		eval tk_optionMenu $w.global.$name.family \
+			global_config_new(gui.$font^^family) \
+			$all_fonts
+		spinbox $w.global.$name.size \
+			-textvariable global_config_new(gui.$font^^size) \
+			-from 2 -to 80 -increment 1 \
+			-width 3
+		bind $w.global.$name.size <FocusIn> {%W selection range 0 end}
+		pack $w.global.$name.size -side right -anchor e
+		pack $w.global.$name.family -side right -anchor e
+		pack $w.global.$name -side top -anchor w -fill x
+	}
+
+	bind $w <Visibility> "grab $w; focus $w.buttons.save"
+	bind $w <Key-Escape> "destroy $w"
+	bind $w <Key-Return> [list do_save_config $w]
+	wm title $w "[appname] ([reponame]): Options"
+	tkwait window $w
+}
+
+proc do_restore_defaults {} {
+	global font_descs default_config repo_config
+	global repo_config_new global_config_new
+
+	foreach name [array names default_config] {
+		set repo_config_new($name) $default_config($name)
+		set global_config_new($name) $default_config($name)
+	}
+
+	foreach option $font_descs {
+		set name [lindex $option 0]
+		set repo_config(gui.$name) $default_config(gui.$name)
+	}
+	apply_config
+
+	foreach option $font_descs {
+		set name [lindex $option 0]
+		set font [lindex $option 1]
+		set global_config_new(gui.$font^^family) \
+			[font configure $font -family]
+		set global_config_new(gui.$font^^size) \
+			[font configure $font -size]
+	}
+}
+
+proc do_save_config {w} {
+	if {[catch {save_config} err]} {
+		error_popup "Failed to completely save options:\n\n$err"
+	}
+	reshow_diff
+	destroy $w
+}
diff --git a/git-gui/lib/remote.tcl b/git-gui/lib/remote.tcl
new file mode 100644
index 0000000000..99f353ed7d
--- /dev/null
+++ b/git-gui/lib/remote.tcl
@@ -0,0 +1,159 @@
+# git-gui remote management
+# Copyright (C) 2006, 2007 Shawn Pearce
+
+proc is_tracking_branch {name} {
+	global tracking_branches
+
+	if {![catch {set info $tracking_branches($name)}]} {
+		return 1
+	}
+	foreach t [array names tracking_branches] {
+		if {[string match {*/\*} $t] && [string match $t $name]} {
+			return 1
+		}
+	}
+	return 0
+}
+
+proc all_tracking_branches {} {
+	global tracking_branches
+
+	set all_trackings {}
+	set cmd {}
+	foreach name [array names tracking_branches] {
+		if {[regsub {/\*$} $name {} name]} {
+			lappend cmd $name
+		} else {
+			regsub ^refs/(heads|remotes)/ $name {} name
+			lappend all_trackings $name
+		}
+	}
+
+	if {$cmd ne {}} {
+		set fd [open "| git for-each-ref --format=%(refname) $cmd" r]
+		while {[gets $fd name] > 0} {
+			regsub ^refs/(heads|remotes)/ $name {} name
+			lappend all_trackings $name
+		}
+		close $fd
+	}
+
+	return [lsort -unique $all_trackings]
+}
+
+proc load_all_remotes {} {
+	global repo_config
+	global all_remotes tracking_branches
+
+	set all_remotes [list]
+	array unset tracking_branches
+
+	set rm_dir [gitdir remotes]
+	if {[file isdirectory $rm_dir]} {
+		set all_remotes [glob \
+			-types f \
+			-tails \
+			-nocomplain \
+			-directory $rm_dir *]
+
+		foreach name $all_remotes {
+			catch {
+				set fd [open [file join $rm_dir $name] r]
+				while {[gets $fd line] >= 0} {
+					if {![regexp {^Pull:[ 	]*([^:]+):(.+)$} \
+						$line line src dst]} continue
+					if {![regexp ^refs/ $dst]} {
+						set dst "refs/heads/$dst"
+					}
+					set tracking_branches($dst) [list $name $src]
+				}
+				close $fd
+			}
+		}
+	}
+
+	foreach line [array names repo_config remote.*.url] {
+		if {![regexp ^remote\.(.*)\.url\$ $line line name]} continue
+		lappend all_remotes $name
+
+		if {[catch {set fl $repo_config(remote.$name.fetch)}]} {
+			set fl {}
+		}
+		foreach line $fl {
+			if {![regexp {^([^:]+):(.+)$} $line line src dst]} continue
+			if {![regexp ^refs/ $dst]} {
+				set dst "refs/heads/$dst"
+			}
+			set tracking_branches($dst) [list $name $src]
+		}
+	}
+
+	set all_remotes [lsort -unique $all_remotes]
+}
+
+proc populate_fetch_menu {} {
+	global all_remotes repo_config
+
+	set m .mbar.fetch
+	foreach r $all_remotes {
+		set enable 0
+		if {![catch {set a $repo_config(remote.$r.url)}]} {
+			if {![catch {set a $repo_config(remote.$r.fetch)}]} {
+				set enable 1
+			}
+		} else {
+			catch {
+				set fd [open [gitdir remotes $r] r]
+				while {[gets $fd n] >= 0} {
+					if {[regexp {^Pull:[ \t]*([^:]+):} $n]} {
+						set enable 1
+						break
+					}
+				}
+				close $fd
+			}
+		}
+
+		if {$enable} {
+			$m add command \
+				-label "Fetch from $r..." \
+				-command [list fetch_from $r]
+		}
+	}
+}
+
+proc populate_push_menu {} {
+	global all_remotes repo_config
+
+	set m .mbar.push
+	set fast_count 0
+	foreach r $all_remotes {
+		set enable 0
+		if {![catch {set a $repo_config(remote.$r.url)}]} {
+			if {![catch {set a $repo_config(remote.$r.push)}]} {
+				set enable 1
+			}
+		} else {
+			catch {
+				set fd [open [gitdir remotes $r] r]
+				while {[gets $fd n] >= 0} {
+					if {[regexp {^Push:[ \t]*([^:]+):} $n]} {
+						set enable 1
+						break
+					}
+				}
+				close $fd
+			}
+		}
+
+		if {$enable} {
+			if {!$fast_count} {
+				$m add separator
+			}
+			$m add command \
+				-label "Push to $r..." \
+				-command [list push_to $r]
+			incr fast_count
+		}
+	}
+}
diff --git a/git-gui/lib/shortcut.tcl b/git-gui/lib/shortcut.tcl
new file mode 100644
index 0000000000..ebf72e4452
--- /dev/null
+++ b/git-gui/lib/shortcut.tcl
@@ -0,0 +1,141 @@
+# git-gui desktop icon creators
+# Copyright (C) 2006, 2007 Shawn Pearce
+
+proc do_windows_shortcut {} {
+	global argv0
+
+	set fn [tk_getSaveFile \
+		-parent . \
+		-title "[appname] ([reponame]): Create Desktop Icon" \
+		-initialfile "Git [reponame].bat"]
+	if {$fn != {}} {
+		if {[catch {
+				set fd [open $fn w]
+				puts $fd "@ECHO Entering [reponame]"
+				puts $fd "@ECHO Starting git-gui... please wait..."
+				puts $fd "@SET PATH=[file normalize [gitexec]];%PATH%"
+				puts $fd "@SET GIT_DIR=[file normalize [gitdir]]"
+				puts -nonewline $fd "@\"[info nameofexecutable]\""
+				puts $fd " \"[file normalize $argv0]\""
+				close $fd
+			} err]} {
+			error_popup "Cannot write script:\n\n$err"
+		}
+	}
+}
+
+proc do_cygwin_shortcut {} {
+	global argv0
+
+	if {[catch {
+		set desktop [exec cygpath \
+			--windows \
+			--absolute \
+			--long-name \
+			--desktop]
+		}]} {
+			set desktop .
+	}
+	set fn [tk_getSaveFile \
+		-parent . \
+		-title "[appname] ([reponame]): Create Desktop Icon" \
+		-initialdir $desktop \
+		-initialfile "Git [reponame].bat"]
+	if {$fn != {}} {
+		if {[catch {
+				set fd [open $fn w]
+				set sh [exec cygpath \
+					--windows \
+					--absolute \
+					/bin/sh]
+				set me [exec cygpath \
+					--unix \
+					--absolute \
+					$argv0]
+				set gd [exec cygpath \
+					--unix \
+					--absolute \
+					[gitdir]]
+				set gw [exec cygpath \
+					--windows \
+					--absolute \
+					[file dirname [gitdir]]]
+				regsub -all ' $me "'\\''" me
+				regsub -all ' $gd "'\\''" gd
+				puts $fd "@ECHO Entering $gw"
+				puts $fd "@ECHO Starting git-gui... please wait..."
+				puts -nonewline $fd "@\"$sh\" --login -c \""
+				puts -nonewline $fd "GIT_DIR='$gd'"
+				puts -nonewline $fd " '$me'"
+				puts $fd "&\""
+				close $fd
+			} err]} {
+			error_popup "Cannot write script:\n\n$err"
+		}
+	}
+}
+
+proc do_macosx_app {} {
+	global argv0 env
+
+	set fn [tk_getSaveFile \
+		-parent . \
+		-title "[appname] ([reponame]): Create Desktop Icon" \
+		-initialdir [file join $env(HOME) Desktop] \
+		-initialfile "Git [reponame].app"]
+	if {$fn != {}} {
+		if {[catch {
+				set Contents [file join $fn Contents]
+				set MacOS [file join $Contents MacOS]
+				set exe [file join $MacOS git-gui]
+
+				file mkdir $MacOS
+
+				set fd [open [file join $Contents Info.plist] w]
+				puts $fd {<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>English</string>
+	<key>CFBundleExecutable</key>
+	<string>git-gui</string>
+	<key>CFBundleIdentifier</key>
+	<string>org.spearce.git-gui</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1.0</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+</dict>
+</plist>}
+				close $fd
+
+				set fd [open $exe w]
+				set gd [file normalize [gitdir]]
+				set ep [file normalize [gitexec]]
+				regsub -all ' $gd "'\\''" gd
+				regsub -all ' $ep "'\\''" ep
+				puts $fd "#!/bin/sh"
+				foreach name [array names env] {
+					if {[string match GIT_* $name]} {
+						regsub -all ' $env($name) "'\\''" v
+						puts $fd "export $name='$v'"
+					}
+				}
+				puts $fd "export PATH='$ep':\$PATH"
+				puts $fd "export GIT_DIR='$gd'"
+				puts $fd "exec [file normalize $argv0]"
+				close $fd
+
+				file attributes $exe -permissions u+x,g+x,o+x
+			} err]} {
+			error_popup "Cannot write icon:\n\n$err"
+		}
+	}
+}
diff --git a/git-gui/lib/transport.tcl b/git-gui/lib/transport.tcl
new file mode 100644
index 0000000000..c0e7d20fce
--- /dev/null
+++ b/git-gui/lib/transport.tcl
@@ -0,0 +1,164 @@
+# git-gui transport (fetch/push) support
+# Copyright (C) 2006, 2007 Shawn Pearce
+
+proc fetch_from {remote} {
+	set w [console::new \
+		"fetch $remote" \
+		"Fetching new changes from $remote"]
+	set cmd [list git fetch]
+	lappend cmd $remote
+	console::exec $w $cmd
+}
+
+proc push_to {remote} {
+	set w [console::new \
+		"push $remote" \
+		"Pushing changes to $remote"]
+	set cmd [list git push]
+	lappend cmd -v
+	lappend cmd $remote
+	console::exec $w $cmd
+}
+
+proc start_push_anywhere_action {w} {
+	global push_urltype push_remote push_url push_thin push_tags
+
+	set r_url {}
+	switch -- $push_urltype {
+	remote {set r_url $push_remote}
+	url {set r_url $push_url}
+	}
+	if {$r_url eq {}} return
+
+	set cmd [list git push]
+	lappend cmd -v
+	if {$push_thin} {
+		lappend cmd --thin
+	}
+	if {$push_tags} {
+		lappend cmd --tags
+	}
+	lappend cmd $r_url
+	set cnt 0
+	foreach i [$w.source.l curselection] {
+		set b [$w.source.l get $i]
+		lappend cmd "refs/heads/$b:refs/heads/$b"
+		incr cnt
+	}
+	if {$cnt == 0} {
+		return
+	} elseif {$cnt == 1} {
+		set unit branch
+	} else {
+		set unit branches
+	}
+
+	set cons [console::new \
+		"push $r_url" \
+		"Pushing $cnt $unit to $r_url"]
+	console::exec $cons $cmd
+	destroy $w
+}
+
+trace add variable push_remote write \
+	[list radio_selector push_urltype remote]
+
+proc do_push_anywhere {} {
+	global all_heads all_remotes current_branch
+	global push_urltype push_remote push_url push_thin push_tags
+
+	set w .push_setup
+	toplevel $w
+	wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
+
+	label $w.header -text {Push Branches} -font font_uibold
+	pack $w.header -side top -fill x
+
+	frame $w.buttons
+	button $w.buttons.create -text Push \
+		-default active \
+		-command [list start_push_anywhere_action $w]
+	pack $w.buttons.create -side right
+	button $w.buttons.cancel -text {Cancel} \
+		-default normal \
+		-command [list destroy $w]
+	pack $w.buttons.cancel -side right -padx 5
+	pack $w.buttons -side bottom -fill x -pady 10 -padx 10
+
+	labelframe $w.source -text {Source Branches}
+	listbox $w.source.l \
+		-height 10 \
+		-width 70 \
+		-selectmode extended \
+		-yscrollcommand [list $w.source.sby set]
+	foreach h $all_heads {
+		$w.source.l insert end $h
+		if {$h eq $current_branch} {
+			$w.source.l select set end
+		}
+	}
+	scrollbar $w.source.sby -command [list $w.source.l yview]
+	pack $w.source.sby -side right -fill y
+	pack $w.source.l -side left -fill both -expand 1
+	pack $w.source -fill both -expand 1 -pady 5 -padx 5
+
+	labelframe $w.dest -text {Destination Repository}
+	if {$all_remotes ne {}} {
+		radiobutton $w.dest.remote_r \
+			-text {Remote:} \
+			-value remote \
+			-variable push_urltype
+		eval tk_optionMenu $w.dest.remote_m push_remote $all_remotes
+		grid $w.dest.remote_r $w.dest.remote_m -sticky w
+		if {[lsearch -sorted -exact $all_remotes origin] != -1} {
+			set push_remote origin
+		} else {
+			set push_remote [lindex $all_remotes 0]
+		}
+		set push_urltype remote
+	} else {
+		set push_urltype url
+	}
+	radiobutton $w.dest.url_r \
+		-text {Arbitrary URL:} \
+		-value url \
+		-variable push_urltype
+	entry $w.dest.url_t \
+		-borderwidth 1 \
+		-relief sunken \
+		-width 50 \
+		-textvariable push_url \
+		-validate key \
+		-validatecommand {
+			if {%d == 1 && [regexp {\s} %S]} {return 0}
+			if {%d == 1 && [string length %S] > 0} {
+				set push_urltype url
+			}
+			return 1
+		}
+	grid $w.dest.url_r $w.dest.url_t -sticky we -padx {0 5}
+	grid columnconfigure $w.dest 1 -weight 1
+	pack $w.dest -anchor nw -fill x -pady 5 -padx 5
+
+	labelframe $w.options -text {Transfer Options}
+	checkbutton $w.options.thin \
+		-text {Use thin pack (for slow network connections)} \
+		-variable push_thin
+	grid $w.options.thin -columnspan 2 -sticky w
+	checkbutton $w.options.tags \
+		-text {Include tags} \
+		-variable push_tags
+	grid $w.options.tags -columnspan 2 -sticky w
+	grid columnconfigure $w.options 1 -weight 1
+	pack $w.options -anchor nw -fill x -pady 5 -padx 5
+
+	set push_url {}
+	set push_thin 0
+	set push_tags 0
+
+	bind $w <Visibility> "grab $w; focus $w.buttons.create"
+	bind $w <Key-Escape> "destroy $w"
+	bind $w <Key-Return> [list start_push_anywhere_action $w]
+	wm title $w "[appname] ([reponame]): Push"
+	tkwait window $w
+}