difftool: put the cursor on the editable file for Vim

You only need to edit worktree files when comparing against
the worktree.  Put the cursor automatically into its window for
vimdiff and gvimdiff to avoid doing <C-w>l every time.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/contrib/difftool/git-difftool-helper b/contrib/difftool/git-difftool-helper
index 0b266e3603fc32d886cc9018af49cc161a065d8b..f013726d0f77a4d8fd9faa00ec38e117e41bcb27 100755 (executable)
--- a/contrib/difftool/git-difftool-helper
+++ b/contrib/difftool/git-difftool-helper
@@ -78,12 +78,16 @@ launch_merge_tool () {
                "$merge_tool_path" -o "$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)