| #!/bin/sh |
| # |
| # Copyright (c) 2005 Linus Torvalds |
| # |
| # Resolve two trees. |
| # |
| . git-sh-setup-script || die "Not a git archive" |
| |
| head=$(git-rev-parse --revs-only "$1") |
| merge=$(git-rev-parse --revs-only "$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 |
