[PATCH] fetch: Get submodule paths from index and not from .gitmodules

[Jens Lehmann <Jens.Lehmann@web.de>]

In the first version the .gitmodules file was parsed and all submodules
found there were recursively fetched. This lead to problems when the
.gitmodules file was not properly set up. "git submodule update" gets
this information from the index via "git ls-files", lets do the same here.

Reported-by: Kevin Ballard <kevin@sb.org>
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
---

Could it be that the information in your .gitmodules files is not
quite right? Then this patch should fix your problems with the
recursion. Please test it and let me know if the submodules are
now recursively fetched as they should.


 submodule.c |   25 +++++++++++++++++++------
 1 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/submodule.c b/submodule.c
index 05661e2..13a694b 100644
--- a/submodule.c
+++ b/submodule.c
@@ -240,7 +240,7 @@ void show_submodule_summary(FILE *f, const char *path,

 int fetch_populated_submodules(int forced)
 {
-	int result = 0;
+	int i, result = 0;
 	struct child_process cp;
 	const char *argv[] = {
 		"fetch",
@@ -251,6 +251,10 @@ int fetch_populated_submodules(int forced)
 	if (!work_tree)
 		return 0;

+	if (!the_index.initialized)
+		if (read_cache() < 0)
+			die("index file corrupt");
+
 	memset(&cp, 0, sizeof(cp));
 	cp.argv = argv;
 	cp.env = local_repo_env;
@@ -258,25 +262,34 @@ int fetch_populated_submodules(int forced)
 	cp.no_stdin = 1;
 	cp.out = -1;

-	for_each_string_list_item(name_for_path, &config_name_for_path) {
+	for (i = 0; i < active_nr; i++) {
 		struct strbuf submodule_path = STRBUF_INIT;
 		struct strbuf submodule_git_dir = STRBUF_INIT;
-		const char *git_dir;
+		struct cache_entry *ce = active_cache[i];
+		const char *git_dir, *name;
+
+		if (!S_ISGITLINK(ce->ce_mode))
+			continue;
+
+		name = ce->name;
+		name_for_path = unsorted_string_list_lookup(&config_name_for_path, ce->name);
+		if (name_for_path)
+			name = name_for_path->util;

 		if (!forced) {
 			struct string_list_item *fetch_option;
-			fetch_option = unsorted_string_list_lookup(&config_fetch_for_name, name_for_path->util);
+			fetch_option = unsorted_string_list_lookup(&config_fetch_for_name, name);
 			if (fetch_option && !fetch_option->util)
 				continue;
 		}

-		strbuf_addf(&submodule_path, "%s/%s", work_tree, name_for_path->string);
+		strbuf_addf(&submodule_path, "%s/%s", work_tree, ce->name);
 		strbuf_addf(&submodule_git_dir, "%s/.git", submodule_path.buf);
 		git_dir = read_gitfile_gently(submodule_git_dir.buf);
 		if (!git_dir)
 			git_dir = submodule_git_dir.buf;
 		if (is_directory(git_dir)) {
-			printf("Fetching submodule %s\n", name_for_path->string);
+			printf("Fetching submodule %s\n", ce->name);
 			cp.dir = submodule_path.buf;
 			if (run_command(&cp))
 				result = 1;
-- 
1.7.3.rc2.232.g3328