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Split "git-pull-script" into two parts

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Separate out the merge resolve from the actual getting of the
data. Also, update the resolve phase to take advantage of the
fact that we don't need to do the commit->tree object lookup
by hand, since all the actors involved happily just act on a
commit object these days.
This commit is contained in:
Linus Torvalds
2005-05-05 11:43:30 -07:00
parent 160c8433d9
commit 67cc5c4ef8
3 changed files with 58 additions and 46 deletions
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46
git-pull-script
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@ -6,54 +6,10 @@
merge_repo=$1
merge_name=${2:-HEAD}
rm -f .git/MERGE_HEAD .git/ORIG_HEAD
cp .git/HEAD .git/ORIG_HEAD
echo "Getting object database"
rsync -avz --ignore-existing $merge_repo/objects/. ${SHA1_FILE_DIRECTORY:-.git/objects}/.
echo "Getting remote $merge_name"
rsync -L $merge_repo/$merge_name .git/MERGE_HEAD || exit 1
head=$(cat .git/HEAD)
merge_head=$(cat .git/MERGE_HEAD)
common=$(git-merge-base $head $merge_head)
if [ -z "$common" ]; then
echo "Unable to find common commit between" $merge_head $head
exit 1
fi
# Get the trees associated with those commits
common_tree=$(git-cat-file commit $common | sed 's/tree //;q')
head_tree=$(git-cat-file commit $head | sed 's/tree //;q')
merge_tree=$(git-cat-file commit $merge_head | sed 's/tree //;q')
if [ "$common" == "$merge_head" ]; then
echo "Already up-to-date. Yeeah!"
exit 0
fi
if [ "$common" == "$head" ]; then
echo "Updating from $head to $merge_head."
echo "Destroying all noncommitted data!"
echo "Kill me within 3 seconds.."
sleep 3
git-read-tree -m $merge_tree && git-checkout-cache -f -a && git-update-cache --refresh
echo $merge_head > .git/HEAD
git-diff-tree -p ORIG_HEAD HEAD | diffstat -p1
exit 0
fi
echo "Trying to merge $merge_head into $head"
git-read-tree -m $common_tree $head_tree $merge_tree
merge_msg="Merge of $merge_repo"
result_tree=$(git-write-tree 2> /dev/null)
if [ $? -ne 0 ]; then
echo "Simple merge failed, trying Automatic merge"
git-merge-cache git-merge-one-file-script -a
merge_msg="Automatic merge of $merge_repo"
result_tree=$(git-write-tree) || exit 1
fi
result_commit=$(echo "$merge_msg" | git-commit-tree $result_tree -p $head -p $merge_head)
echo "Committed merge $result_commit"
echo $result_commit > .git/HEAD
git-checkout-cache -f -a && git-update-cache --refresh
git-diff-tree -p ORIG_HEAD HEAD | diffstat -p1
git-resolve-script "$(cat .git/HEAD)" "$(cat .git/MERGE_HEAD)" "$merge_repo"