expose a helper function peel_to_type().

diff --git a/git-mergetool.sh b/git-mergetool.sh
index 4f89cbe8e6ce86175a56b400bdcc34576db34d28..cbbb707959cc64427f7bbd7bfefb0a8f0f263596 100755 (executable)
--- a/git-mergetool.sh
+++ b/git-mergetool.sh
@@ -10,6 +10,7 @@
 
 USAGE='[--tool=tool] [file to merge] ...'
 SUBDIRECTORY_OK=Yes
+OPTIONS_SPEC=
 . git-sh-setup
 require_work_tree
 prefix=$(git rev-parse --show-prefix)
@@ -151,10 +152,11 @@ merge_file () {
        exit 1
     fi
 
-    BACKUP="$path.BACKUP.$$"
-    LOCAL="$path.LOCAL.$$"
-    REMOTE="$path.REMOTE.$$"
-    BASE="$path.BASE.$$"
+    ext="$$$(expr "$path" : '.*\(\.[^/]*\)$')"
+    BACKUP="$path.BACKUP.$ext"
+    LOCAL="$path.LOCAL.$ext"
+    REMOTE="$path.REMOTE.$ext"
+    BASE="$path.BASE.$ext"
 
     mv -- "$path" "$BACKUP"
     cp -- "$BACKUP" "$path"
@@ -250,6 +252,16 @@ merge_file () {
            check_unchanged
            save_backup
            ;;
+       ecmerge)
+           touch "$BACKUP"
+           if base_present; then
+               "$merge_tool_path" "$BASE" "$LOCAL" "$REMOTE" --mode=merge3 --to="$path"
+           else
+               "$merge_tool_path" "$LOCAL" "$REMOTE" --mode=merge2 --to="$path"
+           fi
+           check_unchanged
+           save_backup
+           ;;
        emerge)
            if base_present ; then
                "$merge_tool_path" -f emerge-files-with-ancestor-command "$LOCAL" "$REMOTE" "$BASE" "$(basename "$path")"
@@ -299,7 +311,7 @@ done
 
 valid_tool() {
        case "$1" in
-               kdiff3 | tkdiff | xxdiff | meld | opendiff | emerge | vimdiff | gvimdiff)
+               kdiff3 | tkdiff | xxdiff | meld | opendiff | emerge | vimdiff | gvimdiff | ecmerge)
                        ;; # happy
                *)
                        return 1
@@ -324,7 +336,7 @@ init_merge_tool_path() {
 
 if test -z "$merge_tool"; then
     merge_tool=`git config merge.tool`
-    if ! valid_tool "$merge_tool"; then
+    if test -n "$merge_tool" && ! valid_tool "$merge_tool"; then
            echo >&2 "git config option merge.tool set to unknown tool: $merge_tool"
            echo >&2 "Resetting to default..."
            unset merge_tool
@@ -381,8 +393,11 @@ if test $# -eq 0 ; then
                echo "No files need merging"
                exit 0
        fi
-       echo Merging the files: $files
-       git ls-files -u | sed -e 's/^[^ ]*      //' | sort -u | while read i
+       echo Merging the files: "$files"
+       git ls-files -u |
+       sed -e 's/^[^   ]*      //' |
+       sort -u |
+       while IFS= read i
        do
                printf "\n"
                merge_file "$i" < /dev/tty > /dev/tty