mergetool: Add support for Apple Mac OS X's opendiff command

Signed-off-by: Arjen Laarhoven <arjen@yaph.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/git-mergetool.sh b/git-mergetool.sh
index 9b736507be030cc12ed15960206eb7220dcfe6c1..58794cad49a8afa67cba61d110ee4a3170377fac 100755 (executable)
--- a/git-mergetool.sh
+++ b/git-mergetool.sh
@@ -230,6 +230,16 @@ merge_file () {
            check_unchanged
            save_backup
            ;;
+       opendiff)
+           touch "$BACKUP"
+           if base_present; then
+               opendiff "$LOCAL" "$REMOTE" -ancestor "$BASE" -merge "$path" | cat
+           else
+               opendiff "$LOCAL" "$REMOTE" -merge "$path" | cat
+           fi
+           check_unchanged
+           save_backup
+           ;;
        emerge)
            if base_present ; then
                emacs -f emerge-files-with-ancestor-command "$LOCAL" "$REMOTE" "$BASE" "$path"
@@ -280,7 +290,7 @@ done
 if test -z "$merge_tool"; then
     merge_tool=`git-config merge.tool`
     case "$merge_tool" in
-       kdiff3 | tkdiff | xxdiff | meld | emerge | vimdiff | "")
+       kdiff3 | tkdiff | xxdiff | meld | opendiff | emerge | vimdiff | "")
            ;; # happy
        *)
            echo >&2 "git config option merge.tool set to unknown tool: $merge_tool"
@@ -299,6 +309,8 @@ if test -z "$merge_tool" ; then
        merge_tool=xxdiff
     elif type meld >/dev/null 2>&1 && test -n "$DISPLAY"; then
        merge_tool=meld
+    elif type opendiff >/dev/null 2>&1; then
+       merge_tool=opendiff
     elif type emacs >/dev/null 2>&1; then
        merge_tool=emerge
     elif type vimdiff >/dev/null 2>&1; then
@@ -310,7 +322,7 @@ if test -z "$merge_tool" ; then
 fi
 
 case "$merge_tool" in
-    kdiff3|tkdiff|meld|xxdiff|vimdiff)
+    kdiff3|tkdiff|meld|xxdiff|vimdiff|opendiff)
        if ! type "$merge_tool" > /dev/null 2>&1; then
            echo "The merge tool $merge_tool is not available"
            exit 1