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32d9954478
Fix bugs in git-rebase wrt rebasing another branch than the current HEAD, rebasing with a dirty working dir, and rebasing a proper decendant of the target branch. [jc: with a bit of hand-merging] Signed-off-by: Lukas Sandström <lukass@etek.chalmers.se> Signed-off-by: Junio C Hamano <junkio@cox.net>
66 lines
1.5 KiB
Bash
Executable file
66 lines
1.5 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2005 Junio C Hamano.
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#
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USAGE='<upstream> [<head>]'
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. git-sh-setup
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case $# in 1|2) ;; *) usage ;; esac
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# Make sure we do not have .dotest
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if mkdir .dotest
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then
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rmdir .dotest
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else
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echo >&2 '
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It seems that I cannot create a .dotest directory, and I wonder if you
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are in the middle of patch application or another rebase. If that is not
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the case, please rm -fr .dotest and run me again. I am stopping in case
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you still have something valuable there.'
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exit 1
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fi
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# The tree must be really really clean.
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git-update-index --refresh || exit
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diff=$(git-diff-index --cached --name-status -r HEAD)
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case "$diff" in
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?*) echo "$diff"
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exit 1
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;;
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esac
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# The other head is given. Make sure it is valid.
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other=$(git-rev-parse --verify "$1^0") || usage
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# Make sure the branch to rebase is valid.
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head=$(git-rev-parse --verify "${2-HEAD}^0") || exit
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# If the branch to rebase is given, first switch to it.
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case "$#" in
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2)
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git-checkout "$2" || usage
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esac
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mb=$(git-merge-base "$other" "$head")
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# Check if we are already based on $other.
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if test "$mb" = "$other"
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then
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echo >&2 "Current branch `git-symbolic-ref HEAD` is up to date."
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exit 0
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fi
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# Rewind the head to "$other"
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git-reset --hard "$other"
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# If the $other is a proper descendant of the tip of the branch, then
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# we just fast forwarded.
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if test "$mb" = "$head"
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then
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echo >&2 "Fast-forwarded $head to $other."
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exit 0
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fi
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git-format-patch -k --stdout --full-index "$other" ORIG_HEAD |
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git am --binary -3 -k
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