Merge branch 'maint'

* maint:
  Prepare 1.7.0.1 release notes
  Fix use of mutex in threaded grep
  dwim_ref: fix dangling symref warning
  stash pop: remove 'apply' options during 'drop' invocation
  diff: make sure --output=/bad/path is caught
  Remove hyphen from "git-command" in two error messages

Author: gitster

Documentation/RelNotes-1.7.0.1.txt

@@ -4,8 +4,28 @@ Git v1.7.0.1 Release Notes
 Fixes since v1.7.0
 ------------------
 
+ * In a freshly created repository "rev-parse HEAD^0" complained that
+   it is dangling symref, even though "rev-parse HEAD" didn't.
+
+ * Message from "git cherry-pick" was harder to read and use than necessary
+   when it stopped due to conflicting changes.
+
+ * "git diff --output=/path/that/cannot/be/written" did not correctly
+   error out.
+
+ * "git grep -e -pattern-that-begin-with-dash paths..." could not be
+   spelled as "git grep -- -pattern-that-begin-with-dash paths..." which
+   would be a GNU way to use "--" as "end of options".
+
+ * "git grep" compiled with threading support tried to access an
+   uninitialized mutex on boxes with a single CPU.
+
+ * "git stash pop -q --index" failed because the unnecessary --index
+   option was propagated to "git stash drop" that is internally run at the
+   end.
+
 --
 exec >/var/tmp/1
 echo O=$(git describe)
-O=v1.7.0
+O=v1.7.0-11-g354d9f8
 git shortlog $O..

builtin-grep.c

@@ -409,15 +409,25 @@ static int pathspec_matches(const char **paths, const char *name, int max_depth)
 	return 0;
 }
 
+static void *lock_and_read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size)
+{
+	void *data;
+
+	if (use_threads) {
+		read_sha1_lock();
+		data = read_sha1_file(sha1, type, size);
+		read_sha1_unlock();
+	} else {
+		data = read_sha1_file(sha1, type, size);
+	}
+	return data;
+}
+
 static void *load_sha1(const unsigned char *sha1, unsigned long *size,
 		       const char *name)
 {
 	enum object_type type;
-	char *data;
-
-	read_sha1_lock();
-	data = read_sha1_file(sha1, &type, size);
-	read_sha1_unlock();
+	void *data = lock_and_read_sha1_file(sha1, &type, size);
 
 	if (!data)
 		error("'%s': unable to read %s", name, sha1_to_hex(sha1));
@@ -606,10 +616,7 @@ static int grep_tree(struct grep_opt *opt, const char **paths,
 			void *data;
 			unsigned long size;
 
-			read_sha1_lock();
-			data = read_sha1_file(entry.sha1, &type, &size);
-			read_sha1_unlock();
-
+			data = lock_and_read_sha1_file(entry.sha1, &type, &size);
 			if (!data)
 				die("unable to read tree (%s)",
 				    sha1_to_hex(entry.sha1));

diff.c

@@ -2893,6 +2893,8 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
 		;
 	else if (!prefixcmp(arg, "--output=")) {
 		options->file = fopen(arg + strlen("--output="), "w");
+		if (!options->file)
+			die_errno("Could not open '%s'", arg + strlen("--output="));
 		options->close_file = 1;
 	} else
 		return 0;

git-stash.sh

@@ -221,6 +221,7 @@ show_stash () {
 }
 
 apply_stash () {
+	applied_stash=
 	unstash_index=
 
 	while test $# != 0
@@ -242,6 +243,9 @@ apply_stash () {
 	if test $# = 0
 	then
 		have_stash || die 'Nothing to apply'
+		applied_stash="$ref_stash@{0}"
+	else
+		applied_stash="$*"
 	fi
 
 	# stash records the work tree, and is a merge between the
@@ -415,8 +419,7 @@ pop)
 	shift
 	if apply_stash "$@"
 	then
-		test -z "$unstash_index" || shift
-		drop_stash "$@"
+		drop_stash "$applied_stash"
 	fi
 	;;
 branch)

git.c

@@ -527,7 +527,7 @@ int main(int argc, const char **argv)
 			break;
 		if (was_alias) {
 			fprintf(stderr, "Expansion of alias '%s' failed; "
-				"'%s' is not a git-command\n",
+				"'%s' is not a git command\n",
 				cmd, argv[0]);
 			exit(1);
 		}

help.c

@@ -350,7 +350,7 @@ const char *help_unknown_cmd(const char *cmd)
 		return assumed;
 	}
 
-	fprintf(stderr, "git: '%s' is not a git-command. See 'git --help'.\n", cmd);
+	fprintf(stderr, "git: '%s' is not a git command. See 'git --help'.\n", cmd);
 
 	if (SIMILAR_ENOUGH(best_similarity)) {
 		fprintf(stderr, "\nDid you mean %s?\n",

sha1_name.c

@@ -280,8 +280,7 @@ int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref)
 				*ref = xstrdup(r);
 			if (!warn_ambiguous_refs)
 				break;
-		} else if ((flag & REF_ISSYMREF) &&
-			   (len != 4 || strcmp(str, "HEAD")))
+		} else if ((flag & REF_ISSYMREF) && strcmp(fullref, "HEAD"))
 			warning("ignoring dangling symref %s.", fullref);
 	}
 	free(last_branch);

t/t3903-stash.sh

@@ -194,6 +194,15 @@ test_expect_success 'pop -q is quiet' '
 	test ! -s output.out
 '
 
+test_expect_success 'pop -q --index works and is quiet' '
+	echo foo > file &&
+	git add file &&
+	git stash save --quiet &&
+	git stash pop -q --index > output.out 2>&1 &&
+	test foo = "$(git show :file)" &&
+	test ! -s output.out
+'
+
 test_expect_success 'drop -q is quiet' '
 	git stash &&
 	git stash drop -q > output.out 2>&1 &&