X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=git-pull-script;h=c31a65ca8c191b4b37784c7d398860baf3630cbc;hb=7e011c40bc6c7dbd48b033fb16c861b1166f808c;hp=bd892c7bbc8b236d46b19444d94e2c023410f4d5;hpb=8ac069ac0ab34e751e5f96b0244a5fec10f3e54f;p=git.git

diff --git a/git-pull-script b/git-pull-script
index bd892c7b..c31a65ca 100755
--- a/git-pull-script
+++ b/git-pull-script
@@ -1,46 +1,44 @@
 #!/bin/sh
 #
-merge_repo=$1
-merge_name=${2:-HEAD}
-
-: ${GIT_DIR=.git}
-: ${GIT_OBJECT_DIRECTORY="${SHA1_FILE_DIRECTORY-"$GIT_DIR/objects"}"}
-
-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 \
-			"$1/objects/." "$GIT_OBJECT_DIRECTORY"/.
-		;;
-	esac
-}
-
-echo "Getting remote $merge_name"
-download_one "$merge_repo/$merge_name" "$GIT_DIR"/MERGE_HEAD
-
-echo "Getting object database"
-download_objects "$merge_repo" "$(cat "$GIT_DIR"/MERGE_HEAD)"
+# Copyright (c) 2005 Junio C Hamano
+#
+# Fetch one or more remote refs and merge it/them into the current HEAD.
+
+. git-sh-setup-script || die "Not a git archive"
+
+orig_head=$(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)" \
-	"$(cat "$GIT_DIR"/MERGE_HEAD)" \
-	"$merge_repo"
+	$merge_head "Merge $merge_name"