apply: make init_apply_state() return -1 instead of exit()ing
[gitweb.git] / builtin / submodule--helper.c
index ce9d11e8d367176a6f846d0a004f22a1c8b74d93..b22352b6e1e4c40d1a6e182f5c12abf6351f71fb 100644 (file)
@@ -287,10 +287,8 @@ static int module_list(int argc, const char **argv, const char *prefix)
        argc = parse_options(argc, argv, prefix, module_list_options,
                             git_submodule_helper_usage, 0);
 
-       if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0) {
-               printf("#unmatched\n");
+       if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
                return 1;
-       }
 
        for (i = 0; i < list.nr; i++) {
                const struct cache_entry *ce = list.entries[i];
@@ -366,7 +364,8 @@ static void init_submodule(const char *path, const char *prefix, int quiet)
                        die(_("Failed to register url for submodule path '%s'"),
                            displaypath);
                if (!quiet)
-                       printf(_("Submodule '%s' (%s) registered for path '%s'\n"),
+                       fprintf(stderr,
+                               _("Submodule '%s' (%s) registered for path '%s'\n"),
                                sub->name, url, displaypath);
        }
 
@@ -441,6 +440,7 @@ static int module_name(int argc, const char **argv, const char *prefix)
 
        return 0;
 }
+
 static int clone_submodule(const char *path, const char *gitdir, const char *url,
                           const char *depth, const char *reference, int quiet)
 {
@@ -462,7 +462,7 @@ static int clone_submodule(const char *path, const char *gitdir, const char *url
        argv_array_push(&cp.args, path);
 
        cp.git_cmd = 1;
-       cp.env = local_repo_env;
+       prepare_submodule_repo_env(&cp.env_array);
        cp.no_stdin = 1;
 
        return run_command(&cp);
@@ -503,16 +503,17 @@ static int module_clone(int argc, const char **argv, const char *prefix)
 
        const char *const git_submodule_helper_usage[] = {
                N_("git submodule--helper clone [--prefix=<path>] [--quiet] "
-                  "[--reference <repository>] [--name <name>] [--url <url>]"
-                  "[--depth <depth>] [--] [<path>...]"),
+                  "[--reference <repository>] [--name <name>] [--depth <depth>] "
+                  "--url <url> --path <path>"),
                NULL
        };
 
        argc = parse_options(argc, argv, prefix, module_clone_options,
                             git_submodule_helper_usage, 0);
 
-       if (!path || !*path)
-               die(_("submodule--helper: unspecified or empty --path"));
+       if (argc || !url || !path || !*path)
+               usage_with_options(git_submodule_helper_usage,
+                                  module_clone_options);
 
        strbuf_addf(&sb, "%s/modules/%s", get_git_dir(), name);
        sm_gitdir = xstrdup(absolute_path(sb.buf));
@@ -578,6 +579,7 @@ struct submodule_update_clone {
 
        /* configuration parameters which are passed on to the children */
        int quiet;
+       int recommend_shallow;
        const char *reference;
        const char *depth;
        const char *recursive_prefix;
@@ -588,10 +590,33 @@ struct submodule_update_clone {
 
        /* If we want to stop as fast as possible and return an error */
        unsigned quickstop : 1;
+
+       /* failed clones to be retried again */
+       const struct cache_entry **failed_clones;
+       int failed_clones_nr, failed_clones_alloc;
 };
 #define SUBMODULE_UPDATE_CLONE_INIT {0, MODULE_LIST_INIT, 0, \
-       SUBMODULE_UPDATE_STRATEGY_INIT, 0, NULL, NULL, NULL, NULL, \
-       STRING_LIST_INIT_DUP, 0}
+       SUBMODULE_UPDATE_STRATEGY_INIT, 0, -1, NULL, NULL, NULL, NULL, \
+       STRING_LIST_INIT_DUP, 0, NULL, 0, 0}
+
+
+static void next_submodule_warn_missing(struct submodule_update_clone *suc,
+               struct strbuf *out, const char *displaypath)
+{
+       /*
+        * Only mention uninitialized submodules when their
+        * paths have been specified.
+        */
+       if (suc->warn_if_uninitialized) {
+               strbuf_addf(out,
+                       _("Submodule path '%s' not initialized"),
+                       displaypath);
+               strbuf_addch(out, '\n');
+               strbuf_addstr(out,
+                       _("Maybe you want to use 'update --init'?"));
+               strbuf_addch(out, '\n');
+       }
+}
 
 /**
  * Determine whether 'ce' needs to be cloned. If so, prepare the 'child' to
@@ -627,6 +652,11 @@ static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
        else
                displaypath = ce->name;
 
+       if (!sub) {
+               next_submodule_warn_missing(suc, out, displaypath);
+               goto cleanup;
+       }
+
        if (suc->update.type == SM_UPDATE_NONE
            || (suc->update.type == SM_UPDATE_UNSPECIFIED
                && sub->update_strategy.type == SM_UPDATE_NONE)) {
@@ -644,19 +674,7 @@ static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
        strbuf_addf(&sb, "submodule.%s.url", sub->name);
        git_config_get_string(sb.buf, &url);
        if (!url) {
-               /*
-                * Only mention uninitialized submodules when their
-                * path have been specified
-                */
-               if (suc->warn_if_uninitialized) {
-                       strbuf_addf(out,
-                               _("Submodule path '%s' not initialized"),
-                               displaypath);
-                       strbuf_addch(out, '\n');
-                       strbuf_addstr(out,
-                               _("Maybe you want to use 'update --init'?"));
-                       strbuf_addch(out, '\n');
-               }
+               next_submodule_warn_missing(suc, out, displaypath);
                goto cleanup;
        }
 
@@ -683,6 +701,8 @@ static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
                argv_array_push(&child->args, "--quiet");
        if (suc->prefix)
                argv_array_pushl(&child->args, "--prefix", suc->prefix, NULL);
+       if (suc->recommend_shallow && sub->recommend_shallow == 1)
+               argv_array_push(&child->args, "--depth=1");
        argv_array_pushl(&child->args, "--path", sub->path, NULL);
        argv_array_pushl(&child->args, "--name", sub->name, NULL);
        argv_array_pushl(&child->args, "--url", url, NULL);
@@ -702,23 +722,47 @@ static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
 static int update_clone_get_next_task(struct child_process *child,
                                      struct strbuf *err,
                                      void *suc_cb,
-                                     void **void_task_cb)
+                                     void **idx_task_cb)
 {
        struct submodule_update_clone *suc = suc_cb;
+       const struct cache_entry *ce;
+       int index;
 
        for (; suc->current < suc->list.nr; suc->current++) {
-               const struct cache_entry *ce = suc->list.entries[suc->current];
+               ce = suc->list.entries[suc->current];
                if (prepare_to_clone_next_submodule(ce, child, suc, err)) {
+                       int *p = xmalloc(sizeof(*p));
+                       *p = suc->current;
+                       *idx_task_cb = p;
                        suc->current++;
                        return 1;
                }
        }
+
+       /*
+        * The loop above tried cloning each submodule once, now try the
+        * stragglers again, which we can imagine as an extension of the
+        * entry list.
+        */
+       index = suc->current - suc->list.nr;
+       if (index < suc->failed_clones_nr) {
+               int *p;
+               ce = suc->failed_clones[index];
+               if (!prepare_to_clone_next_submodule(ce, child, suc, err))
+                       die("BUG: ce was a submodule before?");
+               p = xmalloc(sizeof(*p));
+               *p = suc->current;
+               *idx_task_cb = p;
+               suc->current ++;
+               return 1;
+       }
+
        return 0;
 }
 
 static int update_clone_start_failure(struct strbuf *err,
                                      void *suc_cb,
-                                     void *void_task_cb)
+                                     void *idx_task_cb)
 {
        struct submodule_update_clone *suc = suc_cb;
        suc->quickstop = 1;
@@ -728,15 +772,39 @@ static int update_clone_start_failure(struct strbuf *err,
 static int update_clone_task_finished(int result,
                                      struct strbuf *err,
                                      void *suc_cb,
-                                     void *void_task_cb)
+                                     void *idx_task_cb)
 {
+       const struct cache_entry *ce;
        struct submodule_update_clone *suc = suc_cb;
 
+       int *idxP = *(int**)idx_task_cb;
+       int idx = *idxP;
+       free(idxP);
+
        if (!result)
                return 0;
 
-       suc->quickstop = 1;
-       return 1;
+       if (idx < suc->list.nr) {
+               ce  = suc->list.entries[idx];
+               strbuf_addf(err, _("Failed to clone '%s'. Retry scheduled"),
+                           ce->name);
+               strbuf_addch(err, '\n');
+               ALLOC_GROW(suc->failed_clones,
+                          suc->failed_clones_nr + 1,
+                          suc->failed_clones_alloc);
+               suc->failed_clones[suc->failed_clones_nr++] = ce;
+               return 0;
+       } else {
+               idx = suc->current - suc->list.nr;
+               ce  = suc->failed_clones[idx];
+               strbuf_addf(err, _("Failed to clone '%s' a second time, aborting"),
+                           ce->name);
+               strbuf_addch(err, '\n');
+               suc->quickstop = 1;
+               return 1;
+       }
+
+       return 0;
 }
 
 static int update_clone(int argc, const char **argv, const char *prefix)
@@ -765,6 +833,8 @@ static int update_clone(int argc, const char **argv, const char *prefix)
                              "specified number of revisions")),
                OPT_INTEGER('j', "jobs", &max_jobs,
                            N_("parallel jobs")),
+               OPT_BOOL(0, "recommend-shallow", &suc.recommend_shallow,
+                           N_("whether the initial clone should follow the shallow recommendation")),
                OPT__QUIET(&suc.quiet, N_("don't print cloning progress")),
                OPT_END()
        };
@@ -818,6 +888,17 @@ static int update_clone(int argc, const char **argv, const char *prefix)
        return 0;
 }
 
+static int resolve_relative_path(int argc, const char **argv, const char *prefix)
+{
+       struct strbuf sb = STRBUF_INIT;
+       if (argc != 3)
+               die("submodule--helper relative_path takes exactly 2 arguments, got %d", argc);
+
+       printf("%s", relative_path(argv[1], argv[2], &sb));
+       strbuf_release(&sb);
+       return 0;
+}
+
 struct cmd_struct {
        const char *cmd;
        int (*fn)(int, const char **, const char *);
@@ -828,6 +909,7 @@ static struct cmd_struct commands[] = {
        {"name", module_name},
        {"clone", module_clone},
        {"update-clone", update_clone},
+       {"relative-path", resolve_relative_path},
        {"resolve-relative-url", resolve_relative_url},
        {"resolve-relative-url-test", resolve_relative_url_test},
        {"init", module_init}