Merge branch 'rs/archive-excluded-directory'

"git archive" did not work well with pathspecs and the
export-ignore attribute.

* rs/archive-excluded-directory:
  archive: don't queue excluded directories
  archive: factor out helper functions for handling attributes
  t5001: add tests for export-ignore attributes and exclude pathspecs

1 files changed, 41 insertions, 8 deletions

diff --git a/archive.c b/archive.c
index 557dd2db8..1ab8d3a1d 100644
--- a/archive.c
+++ b/archive.c
@@ -103,17 +103,39 @@ struct archiver_context {
 	struct directory *bottom;
 };
 
+static const struct attr_check *get_archive_attrs(const char *path)
+{
+	static struct attr_check *check;
+	if (!check)
+		check = attr_check_initl("export-ignore", "export-subst", NULL);
+	return git_check_attr(path, check) ? NULL : check;
+}
+
+static int check_attr_export_ignore(const struct attr_check *check)
+{
+	return check && ATTR_TRUE(check->items[0].value);
+}
+
+static int check_attr_export_subst(const struct attr_check *check)
+{
+	return check && ATTR_TRUE(check->items[1].value);
+}
+
+static int should_queue_directories(const struct archiver_args *args)
+{
+	return args->pathspec.has_wildcard;
+}
+
 static int write_archive_entry(const unsigned char *sha1, const char *base,
 		int baselen, const char *filename, unsigned mode, int stage,
 		void *context)
 {
 	static struct strbuf path = STRBUF_INIT;
-	static struct attr_check *check;
 	struct archiver_context *c = context;
 	struct archiver_args *args = c->args;
 	write_archive_entry_fn_t write_entry = c->write_entry;
-	const char *path_without_prefix;
 	int err;
+	const char *path_without_prefix;
 
 	args->convert = 0;
 	strbuf_reset(&path);
@@ -125,12 +147,12 @@ static int write_archive_entry(const unsigned char *sha1, const char *base,
 		strbuf_addch(&path, '/');
 	path_without_prefix = path.buf + args->baselen;
 
-	if (!check)
-		check = attr_check_initl("export-ignore", "export-subst", NULL);
-	if (!git_check_attr(path_without_prefix, check)) {
-		if (ATTR_TRUE(check->items[0].value))
+	if (!S_ISDIR(mode) || !should_queue_directories(args)) {
+		const struct attr_check *check;
+		check = get_archive_attrs(path_without_prefix);
+		if (check_attr_export_ignore(check))
 			return 0;
-		args->convert = ATTR_TRUE(check->items[1].value);
+		args->convert = check_attr_export_subst(check);
 	}
 
 	if (S_ISDIR(mode) || S_ISGITLINK(mode)) {
@@ -204,6 +226,17 @@ static int queue_or_write_archive_entry(const unsigned char *sha1,
 	}
 
 	if (S_ISDIR(mode)) {
+		size_t baselen = base->len;
+		const struct attr_check *check;
+
+		/* Borrow base, but restore its original value when done. */
+		strbuf_addstr(base, filename);
+		strbuf_addch(base, '/');
+		check = get_archive_attrs(base->buf);
+		strbuf_setlen(base, baselen);
+
+		if (check_attr_export_ignore(check))
+			return 0;
 		queue_directory(sha1, base, filename,
 				mode, stage, c);
 		return READ_TREE_RECURSIVE;
@@ -257,7 +290,7 @@ int write_archive_entries(struct archiver_args *args,
 	}
 
 	err = read_tree_recursive(args->tree, "", 0, 0, &args->pathspec,
-				  args->pathspec.has_wildcard ?
+				  should_queue_directories(args) ?
 				  queue_or_write_archive_entry :
 				  write_archive_entry_buf,
 				  &context);