return dirty_submodule;
}
+int submodule_uses_gitfile(const char *path)
+{
+ struct child_process cp;
+ const char *argv[] = {
+ "submodule",
+ "foreach",
+ "--quiet",
+ "--recursive",
+ "test -f .git",
+ NULL,
+ };
+ struct strbuf buf = STRBUF_INIT;
+ const char *git_dir;
+
+ strbuf_addf(&buf, "%s/.git", path);
+ git_dir = read_gitfile(buf.buf);
+ if (!git_dir) {
+ strbuf_release(&buf);
+ return 0;
+ }
+ strbuf_release(&buf);
+
+ /* Now test that all nested submodules use a gitfile too */
+ memset(&cp, 0, sizeof(cp));
+ cp.argv = argv;
+ cp.env = local_repo_env;
+ cp.git_cmd = 1;
+ cp.no_stdin = 1;
+ cp.no_stderr = 1;
+ cp.no_stdout = 1;
+ cp.dir = path;
+ if (run_command(&cp))
+ return 0;
+
+ return 1;
+}
+
+int ok_to_remove_submodule(const char *path)
+{
+ struct stat st;
+ ssize_t len;
+ struct child_process cp;
+ const char *argv[] = {
+ "status",
+ "--porcelain",
+ "-u",
+ "--ignore-submodules=none",
+ NULL,
+ };
+ struct strbuf buf = STRBUF_INIT;
+ int ok_to_remove = 1;
+
+ if ((lstat(path, &st) < 0) || is_empty_dir(path))
+ return 1;
+
+ if (!submodule_uses_gitfile(path))
+ return 0;
+
+ memset(&cp, 0, sizeof(cp));
+ cp.argv = argv;
+ cp.env = local_repo_env;
+ cp.git_cmd = 1;
+ cp.no_stdin = 1;
+ cp.out = -1;
+ cp.dir = path;
+ if (start_command(&cp))
+ die("Could not run 'git status --porcelain -uall --ignore-submodules=none' in submodule %s", path);
+
+ len = strbuf_read(&buf, cp.out, 1024);
+ if (len > 2)
+ ok_to_remove = 0;
+ close(cp.out);
+
+ if (finish_command(&cp))
+ die("'git status --porcelain -uall --ignore-submodules=none' failed in submodule %s", path);
+
+ strbuf_release(&buf);
+ return ok_to_remove;
+}
+
static int find_first_merges(struct object_array *result, const char *path,
struct commit *a, struct commit *b)
{