Subject: setup: officially support --work-tree without --git-dir

[thirdparty/git.git] / submodule.c

diff --git a/submodule.c b/submodule.c
index 91a47587478ae0550be8f41c00cb1749c85834f4..6f1c10722f744f4a27f18dae4867b15ecbf57d49 100644 (file)
--- a/submodule.c
+++ b/submodule.c
@@ -10,7 +10,9 @@
 #include "string-list.h"
 
 struct string_list config_name_for_path;
+struct string_list config_fetch_recurse_submodules_for_name;
 struct string_list config_ignore_for_name;
+static int config_fetch_recurse_submodules;
 
 static int add_submodule_odb(const char *path)
 {
@@ -63,10 +65,14 @@ void set_diffopt_flags_from_submodule_config(struct diff_options *diffopt,
        }
 }
 
-static int submodule_config(const char *var, const char *value, void *cb)
+int submodule_config(const char *var, const char *value, void *cb)
 {
        if (!prefixcmp(var, "submodule."))
                return parse_submodule_config_option(var, value);
+       else if (!strcmp(var, "fetch.recursesubmodules")) {
+               config_fetch_recurse_submodules = git_config_bool(var, value);
+               return 0;
+       }
        return 0;
 }
 
@@ -100,6 +106,14 @@ int parse_submodule_config_option(const char *var, const char *value)
                        config = string_list_append(&config_name_for_path, xstrdup(value));
                config->util = strbuf_detach(&submodname, NULL);
                strbuf_release(&submodname);
+       } else if ((len > 23) && !strcmp(var + len - 23, ".fetchrecursesubmodules")) {
+               strbuf_add(&submodname, var, len - 23);
+               config = unsorted_string_list_lookup(&config_fetch_recurse_submodules_for_name, submodname.buf);
+               if (!config)
+                       config = string_list_append(&config_fetch_recurse_submodules_for_name,
+                                                   strbuf_detach(&submodname, NULL));
+               config->util = git_config_bool(var, value) ? (void *)1 : NULL;
+               strbuf_release(&submodname);
        } else if ((len > 7) && !strcmp(var + len - 7, ".ignore")) {
                if (strcmp(value, "untracked") && strcmp(value, "dirty") &&
                    strcmp(value, "all") && strcmp(value, "none")) {
@@ -229,6 +243,89 @@ void show_submodule_summary(FILE *f, const char *path,
        strbuf_release(&sb);
 }
 
+void set_config_fetch_recurse_submodules(int value)
+{
+       config_fetch_recurse_submodules = value;
+}
+
+int fetch_populated_submodules(int num_options, const char **options,
+                              const char *prefix, int ignore_config,
+                              int quiet)
+{
+       int i, result = 0, argc = 0;
+       struct child_process cp;
+       const char **argv;
+       struct string_list_item *name_for_path;
+       const char *work_tree = get_git_work_tree();
+       if (!work_tree)
+               return 0;
+
+       if (!the_index.initialized)
+               if (read_cache() < 0)
+                       die("index file corrupt");
+
+       /* 4: "fetch" (options) "--submodule-prefix" prefix NULL */
+       argv = xcalloc(num_options + 4, sizeof(const char *));
+       argv[argc++] = "fetch";
+       for (i = 0; i < num_options; i++)
+               argv[argc++] = options[i];
+       argv[argc++] = "--submodule-prefix";
+
+       memset(&cp, 0, sizeof(cp));
+       cp.argv = argv;
+       cp.env = local_repo_env;
+       cp.git_cmd = 1;
+       cp.no_stdin = 1;
+
+       for (i = 0; i < active_nr; i++) {
+               struct strbuf submodule_path = STRBUF_INIT;
+               struct strbuf submodule_git_dir = STRBUF_INIT;
+               struct strbuf submodule_prefix = STRBUF_INIT;
+               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 (!ignore_config) {
+                       struct string_list_item *fetch_recurse_submodules_option;
+                       fetch_recurse_submodules_option = unsorted_string_list_lookup(&config_fetch_recurse_submodules_for_name, name);
+                       if (fetch_recurse_submodules_option) {
+                               if (!fetch_recurse_submodules_option->util)
+                                       continue;
+                       } else {
+                               if (!config_fetch_recurse_submodules)
+                                       continue;
+                       }
+               }
+
+               strbuf_addf(&submodule_path, "%s/%s", work_tree, ce->name);
+               strbuf_addf(&submodule_git_dir, "%s/.git", submodule_path.buf);
+               strbuf_addf(&submodule_prefix, "%s%s/", prefix, ce->name);
+               git_dir = read_gitfile_gently(submodule_git_dir.buf);
+               if (!git_dir)
+                       git_dir = submodule_git_dir.buf;
+               if (is_directory(git_dir)) {
+                       if (!quiet)
+                               printf("Fetching submodule %s%s\n", prefix, ce->name);
+                       cp.dir = submodule_path.buf;
+                       argv[argc] = submodule_prefix.buf;
+                       if (run_command(&cp))
+                               result = 1;
+               }
+               strbuf_release(&submodule_path);
+               strbuf_release(&submodule_git_dir);
+               strbuf_release(&submodule_prefix);
+       }
+       free(argv);
+       return result;
+}
+
 unsigned is_submodule_modified(const char *path, int ignore_untracked)
 {
        ssize_t len;