contrib/difftool: Don't repeat merge tool candidates

[git.git] / contrib / difftool / git-difftool-helper

diff --git a/contrib/difftool/git-difftool-helper b/contrib/difftool/git-difftool-helper
index 0b266e3603fc32d886cc9018af49cc161a065d8b..db3af6a833f030cae94dbcd5926aac1b380969a7 100755 (executable)
--- a/contrib/difftool/git-difftool-helper
+++ b/contrib/difftool/git-difftool-helper
@@ -1,7 +1,7 @@
 #!/bin/sh
 # git-difftool-helper is a GIT_EXTERNAL_DIFF-compatible diff tool launcher.
-# It supports kdiff3, tkdiff, xxdiff, meld, opendiff, emerge, ecmerge,
-# vimdiff, gvimdiff, and custom user-configurable tools.
+# It supports kdiff3, kompare, tkdiff, xxdiff, meld, opendiff,
+# emerge, ecmerge, vimdiff, gvimdiff, and custom user-configurable tools.
 # This script is typically launched by using the 'git difftool'
 # convenience command.
 #
@@ -32,7 +32,6 @@ cleanup_temp_files () {
 
 # This is called when users Ctrl-C out of git-difftool-helper
 sigint_handler () {
-       echo
        cleanup_temp_files
        exit 1
 }
@@ -53,7 +52,7 @@ launch_merge_tool () {
 
        # Create and ensure that we clean up $BACKUP
        test -f "$MERGED" && cp -- "$MERGED" "$BACKUP"
-       trap sigint_handler SIGINT
+       trap sigint_handler INT
 
        # $LOCAL and $REMOTE are temporary files so prompt
        # the user with the real $MERGED name before launching $merge_tool.
@@ -74,16 +73,24 @@ launch_merge_tool () {
                        > /dev/null 2>&1
                ;;
 
+       kompare)
+               "$merge_tool_path" "$LOCAL" "$REMOTE"
+               ;;
+
        tkdiff)
                "$merge_tool_path" -o "$MERGED" "$LOCAL" "$REMOTE"
                ;;
 
-       meld|vimdiff)
+       meld)
                "$merge_tool_path" "$LOCAL" "$REMOTE"
                ;;
 
+       vimdiff)
+               "$merge_tool_path" -c "wincmd l" "$LOCAL" "$REMOTE"
+               ;;
+
        gvimdiff)
-               "$merge_tool_path" -f "$LOCAL" "$REMOTE"
+               "$merge_tool_path" -c "wincmd l" -f "$LOCAL" "$REMOTE"
                ;;
 
        xxdiff)
@@ -131,7 +138,7 @@ valid_custom_tool() {
 # Built-in merge tools are always valid.
 valid_tool() {
        case "$1" in
-       kdiff3 | tkdiff | xxdiff | meld | opendiff | emerge | vimdiff | gvimdiff | ecmerge)
+       kdiff3 | kompare | tkdiff | xxdiff | meld | opendiff | emerge | vimdiff | gvimdiff | ecmerge)
                ;; # happy
        *)
                if ! valid_custom_tool "$1"
@@ -174,31 +181,24 @@ 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
-               merge_tool_candidates="kdiff3 tkdiff xxdiff meld gvimdiff"
-               # If gnome then prefer meld
-               if test -n "$GNOME_DESKTOP_SESSION_ID"; then
-                       merge_tool_candidates="meld $merge_tool_candidates"
-               fi
-               # If KDE then prefer kdiff3
-               if test "$KDE_FULL_SESSION" = "true"; then
-                       merge_tool_candidates="kdiff3 $merge_tool_candidates"
+               # If gnome then prefer meld, otherwise, prefer kdiff3 or kompare
+               if test -n "$GNOME_DESKTOP_SESSION_ID" ; then
+                       merge_tool_candidates="meld kdiff3 kompare tkdiff xxdiff gvimdiff"
+               else
+                       merge_tool_candidates="kdiff3 kompare tkdiff xxdiff meld gvimdiff"
                fi
        fi
-
-       # $EDITOR is emacs so add emerge as a candidate
        if echo "${VISUAL:-$EDITOR}" | grep 'emacs' > /dev/null 2>&1; then
-               merge_tool_candidates="$merge_tool_candidates emerge"
+               # $EDITOR is emacs so add emerge as a candidate
+               merge_tool_candidates="$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
-
-       # $EDITOR is vim so add vimdiff as a candidate
-       if echo "${VISUAL:-$EDITOR}" | grep 'vim' > /dev/null 2>&1; then
-               merge_tool_candidates="$merge_tool_candidates vimdiff"
-       fi
-
-       merge_tool_candidates="$merge_tool_candidates opendiff emerge vimdiff"
        echo "merge tool candidates: $merge_tool_candidates"
 
        # Loop over each candidate and stop when a valid merge tool is found.