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From: Brandon Williams <bmwill@google.com>
To: git@vger.kernel.org
Cc: sbeller@google.com, jrnieder@gmail.com, gitster@pobox.com,
	Brandon Williams <bmwill@google.com>
Subject: [PATCH v3 09/10] submodule: merge repo_read_gitmodules and gitmodules_config
Date: Tue, 18 Jul 2017 12:05:26 -0700	[thread overview]
Message-ID: <20170718190527.78049-10-bmwill@google.com> (raw)
In-Reply-To: <20170718190527.78049-1-bmwill@google.com>

Since 69aba5329 (submodule: add repo_read_gitmodules) there have been
two ways to load a repository's .gitmodules file:
'repo_read_gitmodules()' is used if you have a repository object you are
working with or 'gitmodules_config()' if you are implicitly working with
'the_repository'.  Merge the logic of these two functions to remove
duplicate code.

In addition, 'repo_read_gitmodules()' can segfault by passing in a NULL
pointer to 'git_config_from_file()' if a repository doesn't have a
worktree.  Instead check for the existence of a worktree before
attempting to load the .gitmodules file.

Signed-off-by: Brandon Williams <bmwill@google.com>
---
 submodule.c | 37 +++++++++++++++++--------------------
 1 file changed, 17 insertions(+), 20 deletions(-)

diff --git a/submodule.c b/submodule.c
index a5f825e37..ab0b74926 100644
--- a/submodule.c
+++ b/submodule.c
@@ -230,23 +230,6 @@ void load_submodule_cache(void)
 	git_config(submodule_config, NULL);
 }
 
-void gitmodules_config(void)
-{
-	const char *work_tree = get_git_work_tree();
-	if (work_tree) {
-		struct strbuf gitmodules_path = STRBUF_INIT;
-		strbuf_addstr(&gitmodules_path, work_tree);
-		strbuf_addstr(&gitmodules_path, "/.gitmodules");
-		if (read_cache() < 0)
-			die("index file corrupt");
-
-		if (!is_gitmodules_unmerged(&the_index))
-			git_config_from_file(git_modules_config,
-				gitmodules_path.buf, NULL);
-		strbuf_release(&gitmodules_path);
-	}
-}
-
 static int gitmodules_cb(const char *var, const char *value, void *data)
 {
 	struct repository *repo = data;
@@ -255,10 +238,24 @@ static int gitmodules_cb(const char *var, const char *value, void *data)
 
 void repo_read_gitmodules(struct repository *repo)
 {
-	char *gitmodules_path = repo_worktree_path(repo, ".gitmodules");
+	if (repo->worktree) {
+		char *gitmodules;
+
+		if (repo_read_index(repo) < 0)
+			return;
 
-	git_config_from_file(gitmodules_cb, gitmodules_path, repo);
-	free(gitmodules_path);
+		gitmodules = repo_worktree_path(repo, GITMODULES_FILE);
+
+		if (!is_gitmodules_unmerged(repo->index))
+			git_config_from_file(gitmodules_cb, gitmodules, repo);
+
+		free(gitmodules);
+	}
+}
+
+void gitmodules_config(void)
+{
+	repo_read_gitmodules(the_repository);
 }
 
 void gitmodules_config_sha1(const unsigned char *commit_sha1)
-- 
2.13.2.932.g7449e964c-goog


  parent reply	other threads:[~2017-07-18 19:05 UTC|newest]

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-11 22:04 [PATCH 0/3] Convert grep to recurse in-process Brandon Williams
2017-07-11 22:04 ` [PATCH 1/3] repo_read_index: don't discard the index Brandon Williams
2017-07-11 23:51   ` Jonathan Nieder
2017-07-12 17:27     ` Brandon Williams
2017-07-11 23:58   ` Stefan Beller
2017-07-12 17:23     ` Brandon Williams
2017-07-11 22:04 ` [PATCH 2/3] setup: have the_repository use the_index Brandon Williams
2017-07-12  0:00   ` Jonathan Nieder
2017-07-12  0:07     ` Stefan Beller
2017-07-12 17:30     ` Brandon Williams
2017-07-12  0:11   ` Junio C Hamano
2017-07-12 18:01     ` Brandon Williams
2017-07-12 20:38       ` Junio C Hamano
2017-07-12 21:33         ` Jonathan Nieder
2017-07-12 21:40           ` Junio C Hamano
2017-07-18 21:34             ` Junio C Hamano
2017-07-11 22:04 ` [PATCH 3/3] grep: recurse in-process using 'struct repository' Brandon Williams
2017-07-11 22:44   ` Jacob Keller
2017-07-12 18:54     ` Brandon Williams
2017-07-12  0:04   ` Stefan Beller
2017-07-12 18:56     ` Brandon Williams
2017-07-12  0:25   ` Jonathan Nieder
2017-07-12 18:49     ` Brandon Williams
2017-07-12  7:42 ` [PATCH 0/3] Convert grep to recurse in-process Jeff King
2017-07-12 18:06   ` Brandon Williams
2017-07-12 18:17     ` Jeff King
2017-07-12 18:24       ` Jonathan Nieder
2017-07-12 18:33         ` Jeff King
2017-07-12 18:09   ` Jonathan Nieder
2017-07-12 18:17     ` Stefan Beller
2017-07-12 18:27     ` Jeff King
2017-07-14 22:28 ` [PATCH v2 " Brandon Williams
2017-07-14 22:28   ` [PATCH v2 1/3] repo_read_index: don't discard the index Brandon Williams
2017-07-14 22:28   ` [PATCH v2 2/3] repository: have the_repository use the_index Brandon Williams
2017-07-14 22:28   ` [PATCH v2 3/3] grep: recurse in-process using 'struct repository' Brandon Williams
2017-07-18 19:05   ` [PATCH v3 00/10] Convert grep to recurse in-process Brandon Williams
2017-07-18 19:05     ` [PATCH v3 01/10] repo_read_index: don't discard the index Brandon Williams
2017-07-18 19:05     ` [PATCH v3 02/10] repository: have the_repository use the_index Brandon Williams
2017-07-18 19:05     ` [PATCH v3 03/10] cache.h: add GITMODULES_FILE macro Brandon Williams
2017-07-31 23:11       ` [PATCH] convert any hard coded .gitmodules file string to the MACRO Stefan Beller
2017-08-01 13:14         ` Jeff Hostetler
2017-08-01 17:35           ` Stefan Beller
2017-08-01 20:26             ` Junio C Hamano
2017-08-02 17:26               ` Brandon Williams
2017-08-02 17:46               ` Brandon Williams
2017-07-18 19:05     ` [PATCH v3 04/10] config: add config_from_gitmodules Brandon Williams
2017-07-18 19:05     ` [PATCH v3 05/10] submodule: remove submodule.fetchjobs from submodule-config parsing Brandon Williams
2017-07-18 19:05     ` [PATCH v3 06/10] submodule: remove fetch.recursesubmodules " Brandon Williams
2017-07-18 19:05     ` [PATCH v3 07/10] submodule: check for unstaged .gitmodules outside of config parsing Brandon Williams
2017-07-31 23:41       ` Stefan Beller
2017-08-02 17:41         ` Brandon Williams
2017-08-02 18:00           ` Brandon Williams
2017-07-18 19:05     ` [PATCH v3 08/10] submodule: check for unmerged " Brandon Williams
2017-07-18 19:05     ` Brandon Williams [this message]
2017-07-18 19:05     ` [PATCH v3 10/10] grep: recurse in-process using 'struct repository' Brandon Williams
2017-07-18 19:36     ` [PATCH v3 00/10] Convert grep to recurse in-process Junio C Hamano
2017-07-18 20:06       ` Brandon Williams
2017-08-02 19:49     ` [PATCH v4 " Brandon Williams
2017-08-02 19:49       ` [PATCH v4 01/10] repo_read_index: don't discard the index Brandon Williams
2017-08-02 19:49       ` [PATCH v4 02/10] repository: have the_repository use the_index Brandon Williams
2017-08-02 19:49       ` [PATCH v4 03/10] cache.h: add GITMODULES_FILE macro Brandon Williams
2017-08-02 19:49       ` [PATCH v4 04/10] config: add config_from_gitmodules Brandon Williams
2017-08-02 19:49       ` [PATCH v4 05/10] submodule: remove submodule.fetchjobs from submodule-config parsing Brandon Williams
2017-08-02 19:49       ` [PATCH v4 06/10] submodule: remove fetch.recursesubmodules " Brandon Williams
2017-08-02 19:49       ` [PATCH v4 07/10] submodule: check for unstaged .gitmodules outside of config parsing Brandon Williams
2017-08-02 19:49       ` [PATCH v4 08/10] submodule: check for unmerged " Brandon Williams
2017-08-02 19:49       ` [PATCH v4 09/10] submodule: merge repo_read_gitmodules and gitmodules_config Brandon Williams
2017-08-02 19:49       ` [PATCH v4 10/10] grep: recurse in-process using 'struct repository' Brandon Williams

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