diff options
Diffstat (limited to 'git-difftool--helper.sh')
| -rwxr-xr-x | git-difftool--helper.sh | 186 |
1 files changed, 9 insertions, 177 deletions
diff --git a/git-difftool--helper.sh b/git-difftool--helper.sh index f3c27d86ad..b4500368c3 100755 --- a/git-difftool--helper.sh +++ b/git-difftool--helper.sh @@ -5,6 +5,10 @@ # # Copyright (c) 2009 David Aguilar +# Load common functions from git-mergetool--lib +TOOL_MODE=diff +. git-mergetool--lib + # difftool.prompt controls the default prompt/no-prompt behavior # and is overridden with $GIT_DIFFTOOL*_PROMPT. should_prompt () { @@ -16,8 +20,7 @@ should_prompt () { fi } -# This function prepares temporary files and launches the appropriate -# merge tool. +# Sets up shell variables and runs a merge tool launch_merge_tool () { # Merged is the filename as it appears in the work tree # Local is the contents of a/filename @@ -37,187 +40,16 @@ launch_merge_tool () { fi # Run the appropriate merge tool command - case "$merge_tool" in - kdiff3) - basename=$(basename "$MERGED") - "$merge_tool_path" --auto \ - --L1 "$basename (A)" \ - --L2 "$basename (B)" \ - "$LOCAL" "$REMOTE" \ - > /dev/null 2>&1 - ;; - - kompare) - "$merge_tool_path" "$LOCAL" "$REMOTE" - ;; - - tkdiff) - "$merge_tool_path" "$LOCAL" "$REMOTE" - ;; - - meld) - "$merge_tool_path" "$LOCAL" "$REMOTE" - ;; - - diffuse) - "$merge_tool_path" "$LOCAL" "$REMOTE" | cat - ;; - - vimdiff) - "$merge_tool_path" -d -c "wincmd l" "$LOCAL" "$REMOTE" - ;; - - gvimdiff) - "$merge_tool_path" -d -c "wincmd l" -f "$LOCAL" "$REMOTE" - ;; - - xxdiff) - "$merge_tool_path" \ - -R 'Accel.Search: "Ctrl+F"' \ - -R 'Accel.SearchForward: "Ctrl-G"' \ - "$LOCAL" "$REMOTE" - ;; - - opendiff) - "$merge_tool_path" "$LOCAL" "$REMOTE" | cat - ;; - - ecmerge) - "$merge_tool_path" "$LOCAL" "$REMOTE" \ - --default --mode=merge2 --to="$MERGED" - ;; - - emerge) - "$merge_tool_path" -f emerge-files-command \ - "$LOCAL" "$REMOTE" "$(basename "$MERGED")" - ;; - - *) - if test -n "$merge_tool_cmd"; then - ( eval $merge_tool_cmd ) - fi - ;; - esac -} - -# Verifies that (difftool|mergetool).<tool>.cmd exists -valid_custom_tool() { - merge_tool_cmd="$(git config difftool.$1.cmd)" - test -z "$merge_tool_cmd" && - merge_tool_cmd="$(git config mergetool.$1.cmd)" - test -n "$merge_tool_cmd" -} - -# Verifies that the chosen merge tool is properly setup. -# Built-in merge tools are always valid. -valid_tool() { - case "$1" in - kdiff3 | kompare | tkdiff | xxdiff | meld | opendiff | emerge | vimdiff | gvimdiff | ecmerge) - ;; # happy - *) - if ! valid_custom_tool "$1" - then - return 1 - fi - ;; - esac -} - -# Sets up the merge_tool_path variable. -# This handles the difftool.<tool>.path configuration. -# This also falls back to mergetool defaults. -init_merge_tool_path() { - merge_tool_path=$(git config difftool."$1".path) - test -z "$merge_tool_path" && - merge_tool_path=$(git config mergetool."$1".path) - if test -z "$merge_tool_path"; then - case "$1" in - vimdiff) - merge_tool_path=vim - ;; - gvimdiff) - merge_tool_path=gvim - ;; - emerge) - merge_tool_path=emacs - ;; - *) - merge_tool_path="$1" - ;; - esac - fi + run_merge_tool "$merge_tool" } # Allow GIT_DIFF_TOOL and GIT_MERGE_TOOL to provide default values test -n "$GIT_MERGE_TOOL" && merge_tool="$GIT_MERGE_TOOL" test -n "$GIT_DIFF_TOOL" && merge_tool="$GIT_DIFF_TOOL" -# If merge tool was not specified then use the diff.tool -# configuration variable. If that's invalid then reset merge_tool. -# Fallback to merge.tool. -if test -z "$merge_tool"; then - merge_tool=$(git config diff.tool) - test -z "$merge_tool" && - merge_tool=$(git config merge.tool) - if test -n "$merge_tool" && ! valid_tool "$merge_tool"; then - echo >&2 "git config option diff.tool set to unknown tool: $merge_tool" - echo >&2 "Resetting to default..." - unset merge_tool - fi -fi - -# Try to guess an appropriate merge tool if no tool has been set. -if test -z "$merge_tool"; then - # We have a $DISPLAY so try some common UNIX merge tools - if test -n "$DISPLAY"; then - # If gnome then prefer meld, otherwise, prefer kdiff3 or kompare - if test -n "$GNOME_DESKTOP_SESSION_ID" ; then - merge_tool_candidates="meld kdiff3 kompare tkdiff xxdiff gvimdiff diffuse" - else - merge_tool_candidates="kdiff3 kompare tkdiff xxdiff meld gvimdiff diffuse" - fi - fi - if echo "${VISUAL:-$EDITOR}" | grep 'emacs' > /dev/null 2>&1; then - # $EDITOR is emacs so add emerge as a candidate - merge_tool_candidates="$merge_tool_candidates emerge opendiff vimdiff" - elif echo "${VISUAL:-$EDITOR}" | grep 'vim' > /dev/null 2>&1; then - # $EDITOR is vim so add vimdiff as a candidate - merge_tool_candidates="$merge_tool_candidates vimdiff opendiff emerge" - else - merge_tool_candidates="$merge_tool_candidates opendiff emerge vimdiff" - fi - echo "merge tool candidates: $merge_tool_candidates" - - # Loop over each candidate and stop when a valid merge tool is found. - for i in $merge_tool_candidates - do - init_merge_tool_path $i - if type "$merge_tool_path" > /dev/null 2>&1; then - merge_tool=$i - break - fi - done - - if test -z "$merge_tool" ; then - echo "No known merge resolution program available." - exit 1 - fi - -else - # A merge tool has been set, so verify that it's valid. - if ! valid_tool "$merge_tool"; then - echo >&2 "Unknown merge tool $merge_tool" - exit 1 - fi - - init_merge_tool_path "$merge_tool" - - if test -z "$merge_tool_cmd" && ! type "$merge_tool_path" > /dev/null 2>&1; then - echo "The merge tool $merge_tool is not available as '$merge_tool_path'" - exit 1 - fi -fi - +merge_tool=$(get_merge_tool "$merge_tool") || exit +merge_tool_cmd="$(get_merge_tool_cmd "$merge_tool")" +merge_tool_path="$(get_merge_tool_path "$merge_tool")" || exit # Launch the merge tool on each path provided by 'git diff' while test $# -gt 6 |