diff options
| -rwxr-xr-x | git-rebase.sh | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/git-rebase.sh b/git-rebase.sh index 2bc3a12995..638ff0dbc0 100755 --- a/git-rebase.sh +++ b/git-rebase.sh @@ -5,9 +5,25 @@ . git-sh-setup -# The other head is given +# Make sure we do not have .dotest +if mkdir .dotest +then + rmdir .dotest +else + echo >&2 ' +It seems that I cannot create a .dotest directory, and I wonder if you +are in the middle of patch application or another rebase. If that is not +the case, please rm -fr .dotest and run me again. I am stopping in case +you still have something valuable there.' + exit 1 +fi + +# The other head is given. Make sure it is valid. other=$(git-rev-parse --verify "$1^0") || exit +# Make sure we have HEAD that is valid. +head=$(git-rev-parse --verify "HEAD^0") || exit + # The tree must be really really clean. git-update-index --refresh || exit diff=$(git-diff-index --cached --name-status -r HEAD) @@ -23,6 +39,16 @@ case "$#" in git-checkout "$2" || exit esac +# If the HEAD is a proper descendant of $other, we do not even need +# to rebase. Make sure we do not do needless rebase. In such a +# case, merge-base should be the same as "$other". +mb=$(git-merge-base "$other" "$head") +if test "$mb" = "$other" +then + echo >&2 "Current branch `git-symbolic-ref HEAD` is up to date." + exit 0 +fi + # Rewind the head to "$other" git-reset --hard "$other" git-format-patch -k --stdout --full-index "$other" ORIG_HEAD | |