Merge branch 'maint'

* maint:
  Start preparing release notes for 1.5.6.3
  git-submodule - Fix bugs in adding an existing repo as a module
  bash: offer only paths after '--'
  Remove unnecessary pack-*.keep file after successful git-clone
  make deleting a missing ref more quiet

Documentation/RelNotes-1.5.6.3.txt

@@ -0,0 +1,42 @@
+GIT v1.5.6.3 Release Notes
+==========================
+
+Fixes since v1.5.6.2
+--------------------
+
+* Setting GIT_TRACE will report spawning of external process via run_command().
+
+* Bash completion script did not notice '--' marker on the command
+  line and tried the relatively slow "ref completion" even when
+  completing arguments after one.
+
+* Registering a non-empty blob racily and then truncating the working
+  tree file for it confused "racy-git avoidance" logic into thinking
+  that the path is now unchanged.
+
+* "git clone" had a leftover debugging fprintf().
+
+* "git clone -q" was not quiet enough as it used to and gave object count
+  and progress reports.
+
+* "git clone" marked downloaded packfile with .keep; this could be a
+  good thing if the remote side is well packed but otherwise not,
+  especially for a project that is not really big.
+
+* The section that describes attributes related to git-archive were placed
+  in a wrong place in the gitattributes(5) manual page.
+
+* When "git push" tries to remove a remote ref, and corresponding
+  tracking ref is missing, we used to report error (i.e. failure to
+  remove something that does not exist).
+
+* "git mailinfo" (hence "git am") did not handle commit log messages in a
+  MIME multipart mail correctly.
+
+Contains other various documentation fixes.
+
+--
+exec >/var/tmp/1
+O=v1.5.6.2-23-ge965647
+echo O=$(git describe maint)
+git shortlog --no-merges $O..maint

builtin-clone.c

@@ -341,6 +341,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 	const struct ref *refs, *head_points_at, *remote_head, *mapped_refs;
 	char branch_top[256], key[256], value[256];
 	struct strbuf reflog_msg;
+	struct transport *transport = NULL;
 
 	struct refspec refspec;
 
@@ -462,8 +463,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 		refs = clone_local(path, git_dir);
 	else {
 		struct remote *remote = remote_get(argv[0]);
-		struct transport *transport =
-			transport_get(remote, remote->url[0]);
+		transport = transport_get(remote, remote->url[0]);
 
 		if (!transport->get_refs_list || !transport->fetch)
 			die("Don't know how to clone %s", transport->url);
@@ -533,6 +533,9 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 		option_no_checkout = 1;
 	}
 
+	if (transport)
+		transport_unlock_pack(transport);
+
 	if (!option_no_checkout) {
 		struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file));
 		struct unpack_trees_options opts;

builtin-send-pack.c

@@ -226,8 +226,7 @@ static void update_tracking_ref(struct remote *remote, struct ref *ref)
 		if (args.verbose)
 			fprintf(stderr, "updating local tracking ref '%s'\n", rs.dst);
 		if (ref->deletion) {
-			if (delete_ref(rs.dst, NULL))
-				error("Failed to delete");
+			delete_ref(rs.dst, NULL);
 		} else
 			update_ref("update by push", rs.dst,
 					ref->new_sha1, NULL, 0, 0);

contrib/completion/git-completion.bash

@@ -451,6 +451,18 @@ __git_find_subcommand ()
 	done
 }
 
+__git_has_doubledash ()
+{
+	local c=1
+	while [ $c -lt $COMP_CWORD ]; do
+		if [ "--" = "${COMP_WORDS[c]}" ]; then
+			return 0
+		fi
+		c=$((++c))
+	done
+	return 1
+}
+
 __git_whitespacelist="nowarn warn error error-all strip"
 
 _git_am ()
@@ -497,6 +509,8 @@ _git_apply ()
 
 _git_add ()
 {
+	__git_has_doubledash && return
+
 	local cur="${COMP_WORDS[COMP_CWORD]}"
 	case "$cur" in
 	--*)
@@ -511,6 +525,8 @@ _git_add ()
 
 _git_bisect ()
 {
+	__git_has_doubledash && return
+
 	local subcommands="start bad good skip reset visualize replay log run"
 	local subcommand="$(__git_find_subcommand "$subcommands")"
 	if [ -z "$subcommand" ]; then
@@ -613,6 +629,8 @@ _git_cherry_pick ()
 
 _git_commit ()
 {
+	__git_has_doubledash && return
+
 	local cur="${COMP_WORDS[COMP_CWORD]}"
 	case "$cur" in
 	--*)
@@ -632,6 +650,8 @@ _git_describe ()
 
 _git_diff ()
 {
+	__git_has_doubledash && return
+
 	local cur="${COMP_WORDS[COMP_CWORD]}"
 	case "$cur" in
 	--*)
@@ -734,6 +754,8 @@ _git_ls_tree ()
 
 _git_log ()
 {
+	__git_has_doubledash && return
+
 	local cur="${COMP_WORDS[COMP_CWORD]}"
 	case "$cur" in
 	--pretty=*)
@@ -1086,6 +1108,8 @@ _git_remote ()
 
 _git_reset ()
 {
+	__git_has_doubledash && return
+
 	local cur="${COMP_WORDS[COMP_CWORD]}"
 	case "$cur" in
 	--*)
@@ -1098,6 +1122,8 @@ _git_reset ()
 
 _git_shortlog ()
 {
+	__git_has_doubledash && return
+
 	local cur="${COMP_WORDS[COMP_CWORD]}"
 	case "$cur" in
 	--*)
@@ -1144,6 +1170,8 @@ _git_stash ()
 
 _git_submodule ()
 {
+	__git_has_doubledash && return
+
 	local subcommands="add status init update"
 	if [ -z "$(__git_find_subcommand "$subcommands")" ]; then
 		local cur="${COMP_WORDS[COMP_CWORD]}"
@@ -1350,6 +1378,8 @@ _git ()
 
 _gitk ()
 {
+	__git_has_doubledash && return
+
 	local cur="${COMP_WORDS[COMP_CWORD]}"
 	local g="$(git rev-parse --git-dir 2>/dev/null)"
 	local merge=""

git-submodule.sh

@@ -167,8 +167,7 @@ cmd_add()
 	# perhaps the path exists and is already a git repo, else clone it
 	if test -e "$path"
 	then
-		if test -d "$path/.git" &&
-		test "$(unset GIT_DIR; cd $path; git rev-parse --git-dir)" = ".git"
+		if test -d "$path"/.git -o -f "$path"/.git
 		then
 			echo "Adding existing repo at '$path' to the index"
 		else

refs.c

@@ -925,7 +925,7 @@ int delete_ref(const char *refname, const unsigned char *sha1)
 		i = strlen(lock->lk->filename) - 5; /* .lock */
 		lock->lk->filename[i] = 0;
 		err = unlink(lock->lk->filename);
-		if (err) {
+		if (err && errno != ENOENT) {
 			ret = 1;
 			error("unlink(%s) failed: %s",
 			      lock->lk->filename, strerror(errno));

t/t5404-tracking-branches.sh

@@ -10,6 +10,7 @@ test_expect_success 'setup' '
 	git commit -m 1 &&
 	git branch b1 &&
 	git branch b2 &&
+	git branch b3 &&
 	git clone . aa &&
 	git checkout b1 &&
 	echo b1 >>file &&
@@ -50,4 +51,10 @@ test_expect_success 'deleted branches have their tracking branches removed' '
 	test "$(git rev-parse origin/b1)" = "origin/b1"
 '
 
+test_expect_success 'already deleted tracking branches ignored' '
+	git branch -d -r origin/b3 &&
+	git push origin :b3 >output 2>&1 &&
+	! grep error output
+'
+
 test_done

t/t5601-clone.sh

@@ -17,14 +17,32 @@ test_expect_success setup '
 
 '
 
-test_expect_success 'clone with excess parameters' '
+test_expect_success 'clone with excess parameters (1)' '
 
+	rm -fr dst &&
+	test_must_fail git clone -n src dst junk
+
+'
+
+test_expect_success 'clone with excess parameters (2)' '
+
+	rm -fr dst &&
 	test_must_fail git clone -n "file://$(pwd)/src" dst junk
 
 '
 
+test_expect_success 'clone does not keep pack' '
+
+	rm -fr dst &&
+	git clone -n "file://$(pwd)/src" dst &&
+	! test -f dst/file &&
+	! (echo dst/.git/objects/pack/pack-* | grep "\.keep")
+
+'
+
 test_expect_success 'clone checks out files' '
 
+	rm -fr dst &&
 	git clone src dst &&
 	test -f dst/file