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git-resolve-script
executable file
·64 lines (58 loc) · 1.61 KB
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git-resolve-script
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#!/bin/sh
#
# Copyright (c) 2005 Linus Torvalds
#
# Resolve two trees.
#
. git-sh-setup-script || die "Not a git archive"
head=$(git-rev-parse --verify "$1")
merge=$(git-rev-parse --verify "$2")
merge_msg="$3"
dropheads() {
rm -f -- "$GIT_DIR/MERGE_HEAD" \
"$GIT_DIR/LAST_MERGE" || exit 1
}
#
# The remote name is just used for the message,
# but we do want it.
#
if [ -z "$head" -o -z "$merge" -o -z "$merge_msg" ]; then
die "git-resolve-script <head> <remote> <merge-message>"
fi
dropheads
echo $head > "$GIT_DIR"/ORIG_HEAD
echo $merge > "$GIT_DIR"/LAST_MERGE
common=$(git-merge-base $head $merge)
if [ -z "$common" ]; then
die "Unable to find common commit between" $merge $head
fi
if [ "$common" == "$merge" ]; then
echo "Already up-to-date. Yeeah!"
dropheads
exit 0
fi
if [ "$common" == "$head" ]; then
echo "Updating from $head to $merge."
git-read-tree -u -m $head $merge || exit 1
echo $merge > "$GIT_DIR"/HEAD
git-diff-tree -p $head $merge | git-apply --stat
dropheads
exit 0
fi
echo "Trying to merge $merge into $head"
git-read-tree -u -m $common $head $merge || exit 1
result_tree=$(git-write-tree 2> /dev/null)
if [ $? -ne 0 ]; then
echo "Simple merge failed, trying Automatic merge"
git-merge-cache -o git-merge-one-file-script -a
if [ $? -ne 0 ]; then
echo $merge > "$GIT_DIR"/MERGE_HEAD
die "Automatic merge failed, fix up by hand"
fi
result_tree=$(git-write-tree) || exit 1
fi
result_commit=$(echo "$merge_msg" | git-commit-tree $result_tree -p $head -p $merge)
echo "Committed merge $result_commit"
echo $result_commit > "$GIT_DIR"/HEAD
git-diff-tree -p $head $result_commit | git-apply --stat
dropheads