#!/bin/sh
#
-# use "$1" or something in a real script, this
-# just hard-codes it.
-#
merge_repo=$1
+merge_name=${2:-HEAD}
-echo "Getting object database"
-rsync -avz --ignore-existing $merge_repo/ .git/
+: ${GIT_DIR=.git}
+: ${GIT_OBJECT_DIRECTORY="${SHA1_FILE_DIRECTORY-"$GIT_DIR/objects"}"}
-echo "Getting remote head"
-rsync -avz $merge_repo/HEAD .git/MERGE_HEAD
+download_one () {
+ # remote_path="$1" local_file="$2"
+ case "$1" in
+ http://*)
+ wget -q -O "$2" "$1" ;;
+ /*)
+ test -f "$1" && cat >"$2" "$1" ;;
+ *)
+ rsync -L "$1" "$2" ;;
+ esac
+}
-head=$(cat .git/HEAD)
-merge_head=$(cat .git/MERGE_HEAD)
-common=$(merge-base $head $merge_head)
-if [ -z "$common" ]; then
- echo "Unable to find common commit between" $merge_head $head
- exit 1
-fi
+download_objects () {
+ # remote_repo="$1" head_sha1="$2"
+ case "$1" in
+ http://*)
+ git-http-pull -a "$2" "$1/"
+ ;;
+ /*)
+ git-local-pull -l -a "$2" "$1/"
+ ;;
+ *)
+ rsync -avz --ignore-existing \
+ "$1/objects/." "$GIT_OBJECT_DIRECTORY"/.
+ ;;
+ esac
+}
-# Get the trees associated with those commits
-common_tree=$(cat-file commit $common | sed 's/tree //;q')
-head_tree=$(cat-file commit $head | sed 's/tree //;q')
-merge_tree=$(cat-file commit $merge_head | sed 's/tree //;q')
+echo "Getting remote $merge_name"
+download_one "$merge_repo/$merge_name" "$GIT_DIR"/MERGE_HEAD
+
+echo "Getting object database"
+download_objects "$merge_repo" "$(cat "$GIT_DIR"/MERGE_HEAD)"
-if [ "$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
- read-tree $merge_tree && checkout-cache -f -a
- echo $merge_head > .git/HEAD
- exit 0
-fi
-echo "Trying to merge $merge_head into $head"
-read-tree -m $common_tree $head_tree $merge_tree
-result_tree=$(write-tree) || exit 1
-result_commit=$(echo "Merge $merge_repo" | commit-tree $result_tree -p $head -p $merge_head)
-echo "Committed merge $result_commit"
-echo $result_commit > .git/HEAD
-read-tree $result_tree && checkout-cache -f -a
+git-resolve-script \
+ "$(cat "$GIT_DIR"/HEAD)" \
+ "$(cat "$GIT_DIR"/MERGE_HEAD)" \
+ "$merge_repo"