Merge branch 'js/read-tree' into js/c-merge-recursive

* js/read-tree: (107 commits)
  read-tree: move merge functions to the library
  read-trees: refactor the unpack_trees() part
  tar-tree: illustrate an obscure feature better
  git.c: allow alias expansion without a git directory
  setup_git_directory_gently: do not barf when GIT_DIR is given.
  Build on Debian GNU/kFreeBSD
  Call setup_git_directory() much earlier
  Call setup_git_directory() early
  Display an error from update-ref if target ref name is invalid.
  Fix http-fetch
  t4103: fix binary patch application test.
  git-apply -R: binary patches are irreversible for now.
  Teach git-apply about '-R'
  Makefile: ssh-pull.o depends on ssh-fetch.c
  log and diff family: honor config even from subdirectories
  git-reset: detect update-ref error and report it.
  lost-found: use fsck-objects --full
  Teach git-http-fetch the --stdin switch
  Teach git-local-fetch the --stdin switch
  Make pull() support fetching multiple targets at once
  ...

1 files changed, 9 insertions, 3 deletions

diff --git a/git-am.sh b/git-am.sh
index db9a20a811..04f0119435 100755
--- a/git-am.sh
+++ b/git-am.sh
@@ -91,6 +91,7 @@ fall_back_3way () {
 }
 
 prec=4
+rloga=am
 dotest=.dotest sign= utf8= keep= skip= interactive= resolved= binary= ws= resolvemsg=
 
 while case "$#" in 0) break;; esac
@@ -130,6 +131,9 @@ do
 	--resolvemsg=*)
 	resolvemsg=$(echo "$1" | sed -e "s/^--resolvemsg=//"); shift ;;
 
+	--reflog-action=*)
+	rloga=`expr "z$1" : 'z-[^=]*=\(.*\)'`; shift ;;
+
 	--)
 	shift; break ;;
 	-*)
@@ -152,8 +156,10 @@ fi
 
 if test -d "$dotest"
 then
-	test ",$#," = ",0," ||
-	die "previous dotest directory $dotest still exists but mbox given."
+	if test ",$#," != ",0," || ! tty -s
+	then
+		die "previous dotest directory $dotest still exists but mbox given."
+	fi
 	resume=yes
 else
 	# Make sure we are not given --skip nor --resolved
@@ -413,7 +419,7 @@ do
 	parent=$(git-rev-parse --verify HEAD) &&
 	commit=$(git-commit-tree $tree -p $parent <"$dotest/final-commit") &&
 	echo Committed: $commit &&
-	git-update-ref -m "am: $SUBJECT" HEAD $commit $parent ||
+	git-update-ref -m "$rloga: $SUBJECT" HEAD $commit $parent ||
 	stop_here $this
 
 	if test -x "$GIT_DIR"/hooks/post-applypatch