GIT 0.99.6

[git.git] / git-pull-script

diff --git a/git-pull-script b/git-pull-script
index 78d2f3d..c31a65c 100755 (executable)
--- a/git-pull-script
+++ b/git-pull-script
@@ -1,40 +1,44 @@
 #!/bin/sh
 #
-merge_repo=$1
-merge_name=${2:-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
-}
-
-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/." \
-                       ${SHA_FILE_DIRECTORY:-.git/objects}/.
-               ;;
-       esac
-}
-
-echo "Getting remote $merge_name"
-download_one "$merge_repo/$merge_name" .git/MERGE_HEAD
-
-echo "Getting object database"
-download_objects "$merge_repo" "$(cat .git/MERGE_HEAD)"
-
-git-resolve-script "$(cat .git/HEAD)" "$(cat .git/MERGE_HEAD)" "$merge_repo"
+# Copyright (c) 2005 Junio C Hamano
+#
+# Fetch one or more remote refs and merge it/them into the current HEAD.
+
+. git-sh-setup-script || die "Not a git archive"
+
+orig_head=$(cat "$GIT_DIR/HEAD") || die "Pulling into a black hole?"
+git-fetch-script --update-head-ok "$@" || exit 1
+
+curr_head=$(cat "$GIT_DIR/HEAD")
+if test "$curr_head" != "$orig_head"
+then
+       # The fetch involved updating the current branch.
+
+       # The working tree and the index file is still based on the
+       # $orig_head commit, but we are merging into $curr_head.
+       # First update the working tree to match $curr_head.
+
+       echo >&2 "Warning: fetch updated the current branch head."
+       echo >&2 "Warning: fast forwarding your working tree."
+       git-read-tree -u -m "$orig_head" "$curr_head" ||
+               die "You need to first update your working tree."
+fi
+
+merge_head=$(sed -e 's/        .*//' "$GIT_DIR"/FETCH_HEAD | tr '\012' ' ')
+merge_name=$(sed -e 's/^[0-9a-f]*      //' "$GIT_DIR"/FETCH_HEAD |
+        tr '\012' ' ')
+
+case "$merge_head" in
+'')
+       echo >&2 "No changes."
+       exit 0
+       ;;
+*' '?*)
+       echo >&2 "Pulling more than one heads; making an Octopus."
+       exec git-octopus-script
+       ;;
+esac
+
+git-resolve-script \
+       "$(cat "$GIT_DIR"/HEAD)" \
+       $merge_head "Merge $merge_name"