Split "git-pull-script" into two parts

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.

1 files changed, 1 insertions, 45 deletions

diff --git a/git-pull-script b/git-pull-script
index 44cb6d5a80..d35a4a1b23 100755
--- a/git-pull-script
+++ b/git-pull-script
@@ -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"