Port the submodule subcommand 'sync' from shell to C using the same
mechanism as that used for porting submodule subcommand 'status'.
Hence, here the function cmd_sync() is ported from shell to C.
This is done by introducing four functions: module_sync(),
sync_submodule(), sync_submodule_cb() and print_default_remote().
The function print_default_remote() is introduced for getting
the default remote as stdout.
Mentored-by: Christian Couder <christian.cou...@gmail.com>
Mentored-by: Stefan Beller <sbel...@google.com>
Signed-off-by: Prathamesh Chavan <pc44...@gmail.com>
---
builtin/submodule--helper.c | 195 ++++++++++++++++++++++++++++++++++++++++++++
git-submodule.sh | 57 +------------
2 files changed, 196 insertions(+), 56 deletions(-)
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index a5c4a8a69..eb6f96981 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -50,6 +50,20 @@ static char *get_default_remote(void)
return ret;
}
+static int print_default_remote(int argc, const char **argv, const char
*prefix)
+{
+ const char *remote;
+
+ if (argc != 1)
+ die(_("submodule--helper print-default-remote takes no
arguments"));
+
+ remote = get_default_remote();
+ if (remote)
+ printf("%s\n", remote);
+
+ return 0;
+}
+
static int starts_with_dot_slash(const char *str)
{
return str[0] == '.' && is_dir_sep(str[1]);
@@ -358,6 +372,25 @@ static void module_list_active(struct module_list *list)
*list = active_modules;
}
+static char *get_up_path(const char *path)
+{
+ int i;
+ struct strbuf sb = STRBUF_INIT;
+
+ for (i = count_slashes(path); i; i--)
+ strbuf_addstr(&sb, "../");
+
+ /*
+ * Check if 'path' ends with slash or not
+ * for having the same output for dir/sub_dir
+ * and dir/sub_dir/
+ */
+ if (!is_dir_sep(path[strlen(path) - 1]))
+ strbuf_addstr(&sb, "../");
+
+ return strbuf_detach(&sb, NULL);
+}
+
static int module_list(int argc, const char **argv, const char *prefix)
{
int i;
@@ -718,6 +751,166 @@ static int module_name(int argc, const char **argv, const
char *prefix)
return 0;
}
+struct sync_cb {
+ const char *prefix;
+ unsigned int flags;
+};
+
+#define SYNC_CB_INIT { NULL, 0 }
+
+static void sync_submodule(const char *path, const char *prefix,
+ unsigned int flags)
+{
+ const struct submodule *sub;
+ 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))
+ return;
+
+ sub = submodule_from_path(&null_oid, path);
+
+ if (sub && sub->url) {
+ if (starts_with_dot_dot_slash(sub->url) ||
+ starts_with_dot_slash(sub->url)) {
+ char *remote_url, *up_path;
+ char *remote = get_default_remote();
+ strbuf_addf(&sb, "remote.%s.url", remote);
+
+ if (git_config_get_string(sb.buf, &remote_url))
+ remote_url = xgetcwd();
+
+ up_path = get_up_path(path);
+ sub_origin_url = relative_url(remote_url, sub->url,
up_path);
+ super_config_url = relative_url(remote_url, sub->url,
NULL);
+
+ free(remote);
+ free(up_path);
+ free(remote_url);
+ } else {
+ sub_origin_url = xstrdup(sub->url);
+ super_config_url = xstrdup(sub->url);
+ }
+ } else {
+ sub_origin_url = "";
+ super_config_url = "";
+ }
+
+ displaypath = get_submodule_displaypath(path, prefix);
+
+ if (!(flags & OPT_QUIET))
+ printf(_("Synchronizing submodule url for '%s'\n"),
+ displaypath);
+
+ strbuf_reset(&sb);
+ strbuf_addf(&sb, "submodule.%s.url", sub->name);
+ if (git_config_set_gently(sb.buf, super_config_url))
+ die(_("failed to register url for submodule path '%s'"),
+ displaypath);
+
+ if (!is_submodule_populated_gently(path, NULL))
+ goto cleanup;
+
+ prepare_submodule_repo_env(&cp.env_array);
+ cp.git_cmd = 1;
+ cp.dir = path;
+ argv_array_pushl(&cp.args, "submodule--helper",
+ "print-default-remote", NULL);
+
+ strbuf_reset(&sb);
+ if (capture_command(&cp, &sb, 0))
+ die(_("failed to get the default remote for submodule '%s'"),
+ path);
+
+ strbuf_strip_suffix(&sb, "\n");
+ remote_key = xstrfmt("remote.%s.url", sb.buf);
+
+ strbuf_reset(&sb);
+ submodule_to_gitdir(&sb, path);
+ strbuf_addstr(&sb, "/config");
+
+ if (git_config_set_in_file_gently(sb.buf, remote_key, sub_origin_url))
+ die(_("failed to update remote for submodule '%s'"),
+ path);
+
+ if (flags & OPT_RECURSIVE) {
+ struct child_process cpr = CHILD_PROCESS_INIT;
+
+ cpr.git_cmd = 1;
+ cpr.dir = path;
+ prepare_submodule_repo_env(&cpr.env_array);
+
+ argv_array_push(&cpr.args, "--super-prefix");
+ argv_array_pushf(&cpr.args, "%s/", displaypath);
+ argv_array_pushl(&cpr.args, "submodule--helper", "sync",
+ "--recursive", NULL);
+
+ if (flags & OPT_QUIET)
+ argv_array_push(&cpr.args, "--quiet");
+
+ if (run_command(&cpr))
+ die(_("failed to recurse into submodule '%s'"),
+ path);
+ }
+
+cleanup:
+ if (strlen(super_config_url))
+ free(super_config_url);
+ if (strlen(sub_origin_url))
+ free(sub_origin_url);
+ strbuf_release(&sb);
+ free(remote_key);
+ free(displaypath);
+ free(sub_config_path);
+}
+
+static void sync_submodule_cb(const struct cache_entry *list_item, void
*cb_data)
+{
+ struct sync_cb *info = cb_data;
+ sync_submodule(list_item->name, info->prefix, info->flags);
+
+}
+
+static int module_sync(int argc, const char **argv, const char *prefix)
+{
+ struct sync_cb info = SYNC_CB_INIT;
+ struct pathspec pathspec;
+ struct module_list list = MODULE_LIST_INIT;
+ int quiet = 0;
+ int recursive = 0;
+
+ struct option module_sync_options[] = {
+ OPT__QUIET(&quiet, N_("Suppress output of synchronizing
submodule url")),
+ OPT_BOOL(0, "recursive", &recursive,
+ N_("Recurse into nested submodules")),
+ OPT_END()
+ };
+
+ const char *const git_submodule_helper_usage[] = {
+ N_("git submodule--helper sync [--quiet] [--recursive]
[<path>]"),
+ NULL
+ };
+
+ argc = parse_options(argc, argv, prefix, module_sync_options,
+ git_submodule_helper_usage, 0);
+
+ if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
+ return 1;
+
+ info.prefix = prefix;
+ if (quiet)
+ info.flags |= OPT_QUIET;
+ if (recursive)
+ info.flags |= OPT_RECURSIVE;
+
+ for_each_listed_submodule(&list, sync_submodule_cb, &info);
+
+ return 0;
+}
+
static int clone_submodule(const char *path, const char *gitdir, const char
*url,
const char *depth, struct string_list *reference,
int quiet, int progress)
@@ -1498,6 +1691,8 @@ static struct cmd_struct commands[] = {
{"resolve-relative-url-test", resolve_relative_url_test, 0},
{"init", module_init, SUPPORT_SUPER_PREFIX},
{"status", module_status, SUPPORT_SUPER_PREFIX},
+ {"print-default-remote", print_default_remote, 0},
+ {"sync", module_sync, SUPPORT_SUPER_PREFIX},
{"remote-branch", resolve_remote_submodule_branch, 0},
{"push-check", push_check, 0},
{"absorb-git-dirs", absorb_git_dirs, SUPPORT_SUPER_PREFIX},
diff --git a/git-submodule.sh b/git-submodule.sh
index 156255a9e..0825cae14 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -1036,63 +1036,8 @@ cmd_sync()
;;
esac
done
- cd_to_toplevel
- {
- git submodule--helper list --prefix "$wt_prefix" "$@" ||
- echo "#unmatched" $?
- } |
- while read -r mode sha1 stage sm_path
- do
- die_if_unmatched "$mode" "$sha1"
- # skip inactive submodules
- if ! git submodule--helper is-active "$sm_path"
- then
- continue
- fi
-
- name=$(git submodule--helper name "$sm_path")
- url=$(git config -f .gitmodules --get submodule."$name".url)
-
- # Possibly a url relative to parent
- case "$url" in
- ./*|../*)
- # rewrite foo/bar as ../.. to find path from
- # submodule work tree to superproject work tree
- up_path="$(printf '%s\n' "$sm_path" | sed
"s/[^/][^/]*/../g")" &&
- # guarantee a trailing /
- up_path=${up_path%/}/ &&
- # path from submodule work tree to submodule origin repo
- sub_origin_url=$(git submodule--helper
resolve-relative-url "$url" "$up_path") &&
- # path from superproject work tree to submodule origin
repo
- super_config_url=$(git submodule--helper
resolve-relative-url "$url") || exit
- ;;
- *)
- sub_origin_url="$url"
- super_config_url="$url"
- ;;
- esac
-
- displaypath=$(git submodule--helper relative-path
"$prefix$sm_path" "$wt_prefix")
- say "$(eval_gettext "Synchronizing submodule url for
'\$displaypath'")"
- git config submodule."$name".url "$super_config_url"
-
- if test -e "$sm_path"/.git
- then
- (
- sanitize_submodule_env
- cd "$sm_path"
- remote=$(get_default_remote)
- git config remote."$remote".url "$sub_origin_url"
-
- if test -n "$recursive"
- then
- prefix="$prefix$sm_path/"
- eval cmd_sync
- fi
- )
- fi
- done
+ git ${wt_prefix:+-C "$wt_prefix"} ${prefix:+--super-prefix "$prefix"}
submodule--helper sync ${GIT_QUIET:+--quiet} ${recursive:+--recursive} "$@"
}
cmd_absorbgitdirs()
--
2.15.1
