X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=git-fetch.sh;h=61da6a9e3167845cf5b0f9260206b2dd590532df;hb=df8baa42fe4eeb5a021ac262caf601f44d2a5746;hp=e4a6a68057edf0ff8cd4067f334ddf1eed211e44;hpb=0b7a9fc971712308712fedbba404f7b448e37d45;p=git.git

diff --git a/git-fetch.sh b/git-fetch.sh
index e4a6a680..61da6a9e 100755
--- a/git-fetch.sh
+++ b/git-fetch.sh
@@ -5,6 +5,7 @@
 _x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 _x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
 
+tags=
 append=
 force=
 update_head_ok=
@@ -17,6 +18,9 @@ do
 	-f|--f|--fo|--for|--forc|--force)
 		force=t
 		;;
+	-t|--t|--ta|--tag|--tags)
+		tags=t
+		;;
 	-u|--u|--up|--upd|--upda|--updat|--update|--update-|--update-h|\
 	--update-he|--update-hea|--update-head|--update-head-|\
 	--update-head-o|--update-head-ok)
@@ -54,6 +58,10 @@ append_fetch_head () {
     remote_name_="$3"
     remote_nick_="$4"
     local_name_="$5"
+    case "$6" in
+    t) not_for_merge_='not-for-merge' ;;
+    '') not_for_merge_= ;;
+    esac
 
     # remote-nick is the URL given on the command line (or a shorthand)
     # remote-name is the $GIT_DIR relative refs/ path we computed
@@ -78,10 +86,11 @@ append_fetch_head () {
     if git-cat-file commit "$head_" >/dev/null 2>&1
     then
 	headc_=$(git-rev-parse --verify "$head_^0") || exit
-	echo "$headc_	$note_" >>$GIT_DIR/FETCH_HEAD
+	echo "$headc_	$not_for_merge_	$note_" >>$GIT_DIR/FETCH_HEAD
 	echo >&2 "* committish: $head_"
 	echo >&2 "  $note_"
     else
+	echo "$head_	not-for-merge	$note_" >>$GIT_DIR/FETCH_HEAD
 	echo >&2 "* non-commit: $head_"
 	echo >&2 "  $note_"
     fi
@@ -105,14 +114,16 @@ fast_forward_local () {
 	else
 		echo >&2 "* $1: storing $3"
 	fi
-	echo "$2" >"$GIT_DIR/$1" ;;
+	git-update-ref "$1" "$2" 
+	;;
 
     refs/heads/*)
-	# NEEDSWORK: use the same cmpxchg protocol here.
-	echo "$2" >"$GIT_DIR/$1.lock"
-	if test -f "$GIT_DIR/$1"
+	# $1 is the ref being updated.
+	# $2 is the new value for the ref.
+	local=$(git-rev-parse --verify "$1^0" 2>/dev/null)
+	if test "$local"
 	then
-	    local=$(git-rev-parse --verify "$1^0") &&
+	    # Require fast-forward.
 	    mb=$(git-merge-base "$local" "$2") &&
 	    case "$2,$mb" in
 	    $local,*)
@@ -120,43 +131,69 @@ fast_forward_local () {
 		;;
 	    *,$local)
 		echo >&2 "* $1: fast forward to $3"
+		git-update-ref "$1" "$2" "$local"
 		;;
 	    *)
 		false
 		;;
 	    esac || {
 		echo >&2 "* $1: does not fast forward to $3;"
-		case "$force,$single_force" in
-		t,* | *,t)
+		case ",$force,$single_force," in
+		*,t,*)
 			echo >&2 "  forcing update."
+			git-update-ref "$1" "$2" "$local"
 			;;
 		*)
-			mv "$GIT_DIR/$1.lock" "$GIT_DIR/$1.remote"
-			echo >&2 "  leaving it in '$1.remote'"
+			echo >&2 "  not updating."
 			;;
 		esac
 	    }
 	else
-		echo >&2 "* $1: storing $3"
+	    echo >&2 "* $1: storing $3"
+	    git-update-ref "$1" "$2"
 	fi
-	test -f "$GIT_DIR/$1.lock" &&
-	    mv "$GIT_DIR/$1.lock" "$GIT_DIR/$1"
 	;;
     esac
 }
 
 case "$update_head_ok" in
 '')
-	orig_head=$(cat "$GIT_DIR/HEAD" 2>/dev/null)
+	orig_head=$(git-rev-parse --verify HEAD 2>/dev/null)
 	;;
 esac
 
-for ref in $(get_remote_refs_for_fetch "$@")
+# If --tags (and later --heads or --all) is specified, then we are
+# not talking about defaults stored in Pull: line of remotes or
+# branches file, and just fetch those and refspecs explicitly given.
+# Otherwise we do what we always did.
+
+reflist=$(get_remote_refs_for_fetch "$@")
+if test "$tags"
+then
+	taglist=$(git-ls-remote --tags "$remote" | awk '{ print "."$2":"$2 }')
+	if test "$#" -gt 1
+	then
+		# remote URL plus explicit refspecs; we need to merge them.
+		reflist="$reflist $taglist"
+	else
+		# No explicit refspecs; fetch tags only.
+		reflist=$taglist
+	fi
+fi
+
+for ref in $reflist
 do
     refs="$refs $ref"
 
     # These are relative path from $GIT_DIR, typically starting at refs/
     # but may be HEAD
+    if expr "$ref" : '\.' >/dev/null
+    then
+	not_for_merge=t
+	ref=$(expr "$ref" : '\.\(.*\)')
+    else
+	not_for_merge=
+    fi
     if expr "$ref" : '\+' >/dev/null
     then
 	single_force=t
@@ -184,7 +221,7 @@ do
     rsync://*)
 	TMP_HEAD="$GIT_DIR/TMP_HEAD"
 	rsync -L -q "$remote/$remote_name" "$TMP_HEAD" || exit 1
-	head=$(git-rev-parse TMP_HEAD)
+	head=$(git-rev-parse --verify TMP_HEAD)
 	rm -f "$TMP_HEAD"
 	test "$rsync_slurped_objects" || {
 	    rsync -av --ignore-existing --exclude info \
@@ -216,7 +253,8 @@ do
 	continue ;;
     esac
 
-    append_fetch_head "$head" "$remote" "$remote_name" "$remote_nick" "$local_name"
+    append_fetch_head "$head" "$remote" \
+    	"$remote_name" "$remote_nick" "$local_name" "$not_for_merge"
 
 done
 
@@ -241,16 +279,27 @@ http://* | https://* | rsync://* )
 	    case "$ref" in
 	    +$remote_name:*)
 		single_force=t
+		not_for_merge=
+		found="$ref"
+		break ;;
+	    .+$remote_name:*)
+		single_force=t
+		not_for_merge=t
+		found="$ref"
+		break ;;
+	    .$remote_name:*)
+	        not_for_merge=t
 		found="$ref"
 		break ;;
 	    $remote_name:*)
+	    	not_for_merge=
 		found="$ref"
 		break ;;
 	    esac
 	done
-
 	local_name=$(expr "$found" : '[^:]*:\(.*\)')
-	append_fetch_head "$sha1" "$remote" "$remote_name" "$remote_nick" "$local_name"
+	append_fetch_head "$sha1" "$remote" \
+		"$remote_name" "$remote_nick" "$local_name" "$not_for_merge"
     done || exit
     ;;
 esac
@@ -261,10 +310,10 @@ case ",$update_head_ok,$orig_head," in
 *,, | t,* )
 	;;
 *)
-	curr_head=$(cat "$GIT_DIR/HEAD" 2>/dev/null)
+	curr_head=$(git-rev-parse --verify HEAD 2>/dev/null)
 	if test "$curr_head" != "$orig_head"
 	then
-		echo "$orig_head" >$GIT_DIR/HEAD
+	    	git-update-ref HEAD "$orig_head"
 		die "Cannot fetch into the current branch."
 	fi
 	;;