pathspec: always show mnemonic and name in unsupported_magic
[gitweb.git] / builtin / submodule--helper.c
index e79790f0bdc9f19cb9d9773d1a9bdb10044bbb8d..4beeda5f9f49d6c2e2f552308b50bacf70ebd421 100644 (file)
@@ -95,6 +95,8 @@ static int chop_last_dir(char **remoteurl, int is_relative)
  * NEEDSWORK: This works incorrectly on the domain and protocol part.
  * remote_url      url              outcome          expectation
  * http://a.com/b  ../c             http://a.com/c   as is
+ * http://a.com/b/ ../c             http://a.com/c   same as previous line, but
+ *                                                   ignore trailing slash in url
  * http://a.com/b  ../../c          http://c         error out
  * http://a.com/b  ../../../c       http:/c          error out
  * http://a.com/b  ../../../../c    http:c           error out
@@ -113,8 +115,8 @@ static char *relative_url(const char *remote_url,
        struct strbuf sb = STRBUF_INIT;
        size_t len = strlen(remoteurl);
 
-       if (is_dir_sep(remoteurl[len]))
-               remoteurl[len] = '\0';
+       if (is_dir_sep(remoteurl[len-1]))
+               remoteurl[len-1] = '\0';
 
        if (!url_is_local_not_ssh(remoteurl) || is_absolute_path(remoteurl))
                is_relative = 0;
@@ -147,6 +149,8 @@ static char *relative_url(const char *remote_url,
        }
        strbuf_reset(&sb);
        strbuf_addf(&sb, "%s%s%s", remoteurl, colonsep ? ":" : "/", url);
+       if (ends_with(url, "/"))
+               strbuf_setlen(&sb, sb.len - 1);
        free(remoteurl);
 
        if (starts_with_dot_slash(sb.buf))
@@ -296,7 +300,8 @@ static int module_list(int argc, const char **argv, const char *prefix)
                if (ce_stage(ce))
                        printf("%06o %s U\t", ce->ce_mode, sha1_to_hex(null_sha1));
                else
-                       printf("%06o %s %d\t", ce->ce_mode, sha1_to_hex(ce->sha1), ce_stage(ce));
+                       printf("%06o %s %d\t", ce->ce_mode,
+                              oid_to_hex(&ce->oid), ce_stage(ce));
 
                utf8_fprintf(stdout, "%s\n", ce->name);
        }
@@ -442,7 +447,8 @@ static int module_name(int argc, const char **argv, const char *prefix)
 }
 
 static int clone_submodule(const char *path, const char *gitdir, const char *url,
-                          const char *depth, const char *reference, int quiet)
+                          const char *depth, struct string_list *reference,
+                          int quiet, int progress)
 {
        struct child_process cp = CHILD_PROCESS_INIT;
 
@@ -450,10 +456,16 @@ static int clone_submodule(const char *path, const char *gitdir, const char *url
        argv_array_push(&cp.args, "--no-checkout");
        if (quiet)
                argv_array_push(&cp.args, "--quiet");
+       if (progress)
+               argv_array_push(&cp.args, "--progress");
        if (depth && *depth)
                argv_array_pushl(&cp.args, "--depth", depth, NULL);
-       if (reference && *reference)
-               argv_array_pushl(&cp.args, "--reference", reference, NULL);
+       if (reference->nr) {
+               struct string_list_item *item;
+               for_each_string_list_item(item, reference)
+                       argv_array_pushl(&cp.args, "--reference",
+                                        item->string, NULL);
+       }
        if (gitdir && *gitdir)
                argv_array_pushl(&cp.args, "--separate-git-dir", gitdir, NULL);
 
@@ -467,15 +479,110 @@ static int clone_submodule(const char *path, const char *gitdir, const char *url
        return run_command(&cp);
 }
 
+struct submodule_alternate_setup {
+       const char *submodule_name;
+       enum SUBMODULE_ALTERNATE_ERROR_MODE {
+               SUBMODULE_ALTERNATE_ERROR_DIE,
+               SUBMODULE_ALTERNATE_ERROR_INFO,
+               SUBMODULE_ALTERNATE_ERROR_IGNORE
+       } error_mode;
+       struct string_list *reference;
+};
+#define SUBMODULE_ALTERNATE_SETUP_INIT { NULL, \
+       SUBMODULE_ALTERNATE_ERROR_IGNORE, NULL }
+
+static int add_possible_reference_from_superproject(
+               struct alternate_object_database *alt, void *sas_cb)
+{
+       struct submodule_alternate_setup *sas = sas_cb;
+
+       /*
+        * If the alternate object store is another repository, try the
+        * standard layout with .git/modules/<name>/objects
+        */
+       if (ends_with(alt->path, ".git/objects")) {
+               char *sm_alternate;
+               struct strbuf sb = STRBUF_INIT;
+               struct strbuf err = STRBUF_INIT;
+               strbuf_add(&sb, alt->path, strlen(alt->path) - strlen("objects"));
+
+               /*
+                * We need to end the new path with '/' to mark it as a dir,
+                * otherwise a submodule name containing '/' will be broken
+                * as the last part of a missing submodule reference would
+                * be taken as a file name.
+                */
+               strbuf_addf(&sb, "modules/%s/", sas->submodule_name);
+
+               sm_alternate = compute_alternate_path(sb.buf, &err);
+               if (sm_alternate) {
+                       string_list_append(sas->reference, xstrdup(sb.buf));
+                       free(sm_alternate);
+               } else {
+                       switch (sas->error_mode) {
+                       case SUBMODULE_ALTERNATE_ERROR_DIE:
+                               die(_("submodule '%s' cannot add alternate: %s"),
+                                   sas->submodule_name, err.buf);
+                       case SUBMODULE_ALTERNATE_ERROR_INFO:
+                               fprintf(stderr, _("submodule '%s' cannot add alternate: %s"),
+                                       sas->submodule_name, err.buf);
+                       case SUBMODULE_ALTERNATE_ERROR_IGNORE:
+                               ; /* nothing */
+                       }
+               }
+               strbuf_release(&sb);
+       }
+
+       return 0;
+}
+
+static void prepare_possible_alternates(const char *sm_name,
+               struct string_list *reference)
+{
+       char *sm_alternate = NULL, *error_strategy = NULL;
+       struct submodule_alternate_setup sas = SUBMODULE_ALTERNATE_SETUP_INIT;
+
+       git_config_get_string("submodule.alternateLocation", &sm_alternate);
+       if (!sm_alternate)
+               return;
+
+       git_config_get_string("submodule.alternateErrorStrategy", &error_strategy);
+
+       if (!error_strategy)
+               error_strategy = xstrdup("die");
+
+       sas.submodule_name = sm_name;
+       sas.reference = reference;
+       if (!strcmp(error_strategy, "die"))
+               sas.error_mode = SUBMODULE_ALTERNATE_ERROR_DIE;
+       else if (!strcmp(error_strategy, "info"))
+               sas.error_mode = SUBMODULE_ALTERNATE_ERROR_INFO;
+       else if (!strcmp(error_strategy, "ignore"))
+               sas.error_mode = SUBMODULE_ALTERNATE_ERROR_IGNORE;
+       else
+               die(_("Value '%s' for submodule.alternateErrorStrategy is not recognized"), error_strategy);
+
+       if (!strcmp(sm_alternate, "superproject"))
+               foreach_alt_odb(add_possible_reference_from_superproject, &sas);
+       else if (!strcmp(sm_alternate, "no"))
+               ; /* do nothing */
+       else
+               die(_("Value '%s' for submodule.alternateLocation is not recognized"), sm_alternate);
+
+       free(sm_alternate);
+       free(error_strategy);
+}
+
 static int module_clone(int argc, const char **argv, const char *prefix)
 {
-       const char *name = NULL, *url = NULL;
-       const char *reference = NULL, *depth = NULL;
+       const char *name = NULL, *url = NULL, *depth = NULL;
        int quiet = 0;
+       int progress = 0;
        FILE *submodule_dot_git;
        char *p, *path = NULL, *sm_gitdir;
        struct strbuf rel_path = STRBUF_INIT;
        struct strbuf sb = STRBUF_INIT;
+       struct string_list reference = STRING_LIST_INIT_NODUP;
 
        struct option module_clone_options[] = {
                OPT_STRING(0, "prefix", &prefix,
@@ -490,13 +597,15 @@ static int module_clone(int argc, const char **argv, const char *prefix)
                OPT_STRING(0, "url", &url,
                           N_("string"),
                           N_("url where to clone the submodule from")),
-               OPT_STRING(0, "reference", &reference,
-                          N_("string"),
+               OPT_STRING_LIST(0, "reference", &reference,
+                          N_("repo"),
                           N_("reference repository")),
                OPT_STRING(0, "depth", &depth,
                           N_("string"),
                           N_("depth for shallow clones")),
                OPT__QUIET(&quiet, "Suppress output for cloning a submodule"),
+               OPT_BOOL(0, "progress", &progress,
+                          N_("force cloning progress")),
                OPT_END()
        };
 
@@ -527,7 +636,11 @@ static int module_clone(int argc, const char **argv, const char *prefix)
        if (!file_exists(sm_gitdir)) {
                if (safe_create_leading_directories_const(sm_gitdir) < 0)
                        die(_("could not create directory '%s'"), sm_gitdir);
-               if (clone_submodule(path, sm_gitdir, url, depth, reference, quiet))
+
+               prepare_possible_alternates(name, &reference);
+
+               if (clone_submodule(path, sm_gitdir, url, depth, &reference,
+                                   quiet, progress))
                        die(_("clone of '%s' into submodule path '%s' failed"),
                            url, path);
        } else {
@@ -577,9 +690,10 @@ struct submodule_update_clone {
        struct submodule_update_strategy update;
 
        /* configuration parameters which are passed on to the children */
+       int progress;
        int quiet;
        int recommend_shallow;
-       const char *reference;
+       struct string_list references;
        const char *depth;
        const char *recursive_prefix;
        const char *prefix;
@@ -595,7 +709,8 @@ struct submodule_update_clone {
        int failed_clones_nr, failed_clones_alloc;
 };
 #define SUBMODULE_UPDATE_CLONE_INIT {0, MODULE_LIST_INIT, 0, \
-       SUBMODULE_UPDATE_STRATEGY_INIT, 0, -1, NULL, NULL, NULL, NULL, \
+       SUBMODULE_UPDATE_STRATEGY_INIT, 0, 0, -1, STRING_LIST_INIT_DUP, \
+       NULL, NULL, NULL, \
        STRING_LIST_INIT_DUP, 0, NULL, 0, 0}
 
 
@@ -637,7 +752,7 @@ static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
                if (suc->recursive_prefix)
                        strbuf_addf(&sb, "%s/%s", suc->recursive_prefix, ce->name);
                else
-                       strbuf_addf(&sb, "%s", ce->name);
+                       strbuf_addstr(&sb, ce->name);
                strbuf_addf(out, _("Skipping unmerged submodule %s"), sb.buf);
                strbuf_addch(out, '\n');
                goto cleanup;
@@ -683,7 +798,7 @@ static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
 
        strbuf_reset(&sb);
        strbuf_addf(&sb, "%06o %s %d %d\t%s\n", ce->ce_mode,
-                       sha1_to_hex(ce->sha1), ce_stage(ce),
+                       oid_to_hex(&ce->oid), ce_stage(ce),
                        needs_cloning, ce->name);
        string_list_append(&suc->projectlines, sb.buf);
 
@@ -696,6 +811,8 @@ static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
        child->err = -1;
        argv_array_push(&child->args, "submodule--helper");
        argv_array_push(&child->args, "clone");
+       if (suc->progress)
+               argv_array_push(&child->args, "--progress");
        if (suc->quiet)
                argv_array_push(&child->args, "--quiet");
        if (suc->prefix)
@@ -705,8 +822,11 @@ static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
        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);
-       if (suc->reference)
-               argv_array_push(&child->args, suc->reference);
+       if (suc->references.nr) {
+               struct string_list_item *item;
+               for_each_string_list_item(item, &suc->references)
+                       argv_array_pushl(&child->args, "--reference", item->string, NULL);
+       }
        if (suc->depth)
                argv_array_push(&child->args, suc->depth);
 
@@ -749,8 +869,9 @@ static int update_clone_get_next_task(struct child_process *child,
                ce = suc->failed_clones[index];
                if (!prepare_to_clone_next_submodule(ce, child, suc, err)) {
                        suc->current ++;
-                       strbuf_addf(err, "BUG: submodule considered for cloning,"
-                                   "doesn't need cloning any more?\n");
+                       strbuf_addstr(err, "BUG: submodule considered for "
+                                          "cloning, doesn't need cloning "
+                                          "any more?\n");
                        return 0;
                }
                p = xmalloc(sizeof(*p));
@@ -829,7 +950,7 @@ static int update_clone(int argc, const char **argv, const char *prefix)
                OPT_STRING(0, "update", &update,
                           N_("string"),
                           N_("rebase, merge, checkout or none")),
-               OPT_STRING(0, "reference", &suc.reference, N_("repo"),
+               OPT_STRING_LIST(0, "reference", &suc.references, N_("repo"),
                           N_("reference repository")),
                OPT_STRING(0, "depth", &suc.depth, "<depth>",
                           N_("Create a shallow clone truncated to the "
@@ -839,6 +960,8 @@ static int update_clone(int argc, const char **argv, const char *prefix)
                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_BOOL(0, "progress", &suc.progress,
+                           N_("force cloning progress")),
                OPT_END()
        };