[PATCH 03/13] submodule--helper: introduce get_default_remote_submodule()
From: Atharva Raykar <hidden>
Date: 2021-09-07 12:00:05
Subsystem:
the rest · Maintainer:
Linus Torvalds
Before 8ef1d2b549 (submodule--helper: get remote names from any repository, 2021-07-20), it was not possible to directly retrieve a submodule's remote name within the same process, because `get_default_remote()` used only knew about the current repository. Now that we have `repo_get_default_remote()`, we no longer have to start a subprocess that called `submodule--helper get-default-remote` from within the submodule directory. Let's make a function called `get_default_remote_submodule()` which takes a submodule path, and returns the default remote for that submodule, all within the same process. We can now use this function to save an unnecessary subprocess spawn in `sync_submodule()`, and also in the next patch, which will require this functionality. Mentored-by: Christian Couder [off-list ref] Mentored-by: Shourya Shukla [off-list ref] Signed-off-by: Atharva Raykar <redacted> --- builtin/submodule--helper.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-)
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index 1a65de4fa4..f6c4fc349b 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c@@ -54,6 +54,19 @@ static char *repo_get_default_remote(struct repository *repo, const char *refnam return ret; } +static char *get_default_remote_submodule(const char *module_path) +{ + const char *refname; + const struct submodule *sub; + struct repository subrepo; + + refname = refs_resolve_ref_unsafe(get_submodule_ref_store(module_path), + "HEAD", 0, NULL, NULL); + sub = submodule_from_path(the_repository, null_oid(), module_path); + repo_submodule_init(&subrepo, the_repository, sub); + return repo_get_default_remote(&subrepo, refname); +} + static char *get_default_remote(void) { const char *refname = resolve_ref_unsafe("HEAD", 0, NULL, NULL);
@@ -1374,7 +1387,6 @@ static void sync_submodule(const char *path, const char *prefix, char *remote_key = NULL; char *sub_origin_url, *super_config_url, *displaypath; struct strbuf sb = STRBUF_INIT; - struct child_process cp = CHILD_PROCESS_INIT; char *sub_config_path = NULL; if (!is_submodule_active(the_repository, path))
@@ -1423,14 +1435,9 @@ static void sync_submodule(const char *path, const char *prefix, if (!is_submodule_populated_gently(path, NULL)) goto cleanup; - prepare_submodule_repo_env(&cp.env_array); - cp.git_cmd = 1; - cp.dir = path; - strvec_pushl(&cp.args, "submodule--helper", - "print-default-remote", NULL); - strbuf_reset(&sb); - if (capture_command(&cp, &sb, 0)) + strbuf_addstr(&sb, get_default_remote_submodule(path)); + if (!sb.buf) die(_("failed to get the default remote for submodule '%s'"), path);
--
2.32.0