[PATCH] mergetool: clean up temp files when aborted

When handling a symlink conflict or a deleted-file conflict, mergetool stops to ask the user what to do. If the user chooses any option besides "(a)bort", then the temporary files which mergetool created in preparation for handling the conflict are removed. But these temporary files are not removed when the user chooses to abort the operation.

    $ git cherry-pick other/branch
    error: could not apply 4e43581... Fix foo.c

    $ git status --short
    DU foo.c

    $ git mergetool
    Merging:
    foo.c

    Deleted merge conflict for 'foo.c':
      {local}: deleted
      {remote}: modified file
    Use (m)odified or (d)eleted file, or (a)bort? a
    Continue merging other unresolved paths (y/n) ? n

    $ git status --short
    DU foo.c
    ?? foo.c.BACKUP.16929.c
    ?? foo.c.BASE.16929.c
    ?? foo.c.LOCAL.16929.c
    ?? foo.c.REMOTE.16929.c

These temporary files should not remain after the mergetool operation is completed.

Remove the temporary files by calling the cleanup_temp_files when the user chooses to abort the mergetool operation.

It looks like 'cleanup_temp_files' without the --save-backups option is the correct thing to do, and this is how this commit is implemented. But some other paths do use --save-backups resulting in a foo.c.orig file being left behind. That seems to be a different bug, though.

Signed-off-by: Phil Hord <hordp@cisco.com>
---
 git-mergetool.sh | 2 ++
 1 file changed, 2 insertions(+)