git-fetch: be even quieter.
[gitweb.git] / builtin-fetch.c
index a041df9faf7e612bf84e588834446c0cfaf67620..e65690f25cdadb7b75aad40718510b1b9bdb8800 100644 (file)
@@ -13,21 +13,58 @@ static const char fetch_usage[] = "git-fetch [-a | --append] [--upload-pack <upl
 
 static int append, force, tags, no_tags, update_head_ok, verbose, quiet;
 static char *default_rla = NULL;
+static struct transport *transport;
 
-static void find_merge_config(struct ref *ref_map, struct remote *remote)
+static void unlock_pack(void)
 {
-       struct ref *rm = ref_map;
-       struct branch *branch = branch_get(NULL);
+       if (transport)
+               transport_unlock_pack(transport);
+}
 
-       for (rm = ref_map; rm; rm = rm->next) {
-               if (!branch_has_merge_config(branch)) {
-                       if (remote && remote->fetch &&
-                           !strcmp(remote->fetch[0].src, rm->name))
-                               rm->merge = 1;
-               } else {
-                       if (branch_merges(branch, rm->name))
+static void unlock_pack_on_signal(int signo)
+{
+       unlock_pack();
+       signal(SIGINT, SIG_DFL);
+       raise(signo);
+}
+
+static void add_merge_config(struct ref **head,
+                          struct ref *remote_refs,
+                          struct branch *branch,
+                          struct ref ***tail)
+{
+       int i;
+
+       for (i = 0; i < branch->merge_nr; i++) {
+               struct ref *rm, **old_tail = *tail;
+               struct refspec refspec;
+
+               for (rm = *head; rm; rm = rm->next) {
+                       if (branch_merge_matches(branch, i, rm->name)) {
                                rm->merge = 1;
+                               break;
+                       }
                }
+               if (rm)
+                       continue;
+
+               /*
+                * Not fetched to a tracking branch?  We need to fetch
+                * it anyway to allow this branch's "branch.$name.merge"
+                * to be honored by git-pull, but we do not have to
+                * fail if branch.$name.merge is misconfigured to point
+                * at a nonexisting branch.  If we were indeed called by
+                * git-pull, it will notice the misconfiguration because
+                * there is no entry in the resulting FETCH_HEAD marked
+                * for merging.
+                */
+               refspec.src = branch->merge[i]->src;
+               refspec.dst = NULL;
+               refspec.pattern = 0;
+               refspec.force = 0;
+               get_fetch_map(remote_refs, &refspec, tail, 1);
+               for (rm = *old_tail; rm; rm = rm->next)
+                       rm->merge = 1;
        }
 }
 
@@ -44,7 +81,7 @@ static struct ref *get_ref_map(struct transport *transport,
 
        if (ref_count || tags) {
                for (i = 0; i < ref_count; i++) {
-                       get_fetch_map(remote_refs, &refs[i], &tail);
+                       get_fetch_map(remote_refs, &refs[i], &tail, 0);
                        if (refs[i].dst && refs[i].dst[0])
                                *autotags = 1;
                }
@@ -57,35 +94,43 @@ static struct ref *get_ref_map(struct transport *transport,
                        refspec.dst = "refs/tags/";
                        refspec.pattern = 1;
                        refspec.force = 0;
-                       get_fetch_map(remote_refs, &refspec, &tail);
+                       get_fetch_map(remote_refs, &refspec, &tail, 0);
                }
        } else {
                /* Use the defaults */
                struct remote *remote = transport->remote;
-               if (remote->fetch_refspec_nr) {
+               struct branch *branch = branch_get(NULL);
+               int has_merge = branch_has_merge_config(branch);
+               if (remote && (remote->fetch_refspec_nr || has_merge)) {
                        for (i = 0; i < remote->fetch_refspec_nr; i++) {
-                               get_fetch_map(remote_refs, &remote->fetch[i], &tail);
+                               get_fetch_map(remote_refs, &remote->fetch[i], &tail, 0);
                                if (remote->fetch[i].dst &&
                                    remote->fetch[i].dst[0])
                                        *autotags = 1;
+                               if (!i && !has_merge && ref_map &&
+                                   !remote->fetch[0].pattern)
+                                       ref_map->merge = 1;
                        }
-                       find_merge_config(ref_map, remote);
+                       /*
+                        * if the remote we're fetching from is the same
+                        * as given in branch.<name>.remote, we add the
+                        * ref given in branch.<name>.merge, too.
+                        */
+                       if (has_merge &&
+                           !strcmp(branch->remote_name, remote->name))
+                               add_merge_config(&ref_map, remote_refs, branch, &tail);
                } else {
                        ref_map = get_remote_ref(remote_refs, "HEAD");
-
+                       if (!ref_map)
+                               die("Couldn't find remote ref HEAD");
                        ref_map->merge = 1;
                }
        }
+       ref_remove_duplicates(ref_map);
 
        return ref_map;
 }
 
-static void show_new(enum object_type type, unsigned char *sha1_new)
-{
-       fprintf(stderr, "  %s: %s\n", typename(type),
-               find_unique_abbrev(sha1_new, DEFAULT_ABBREV));
-}
-
 static int s_update_ref(const char *action,
                        struct ref *ref,
                        int check_old)
@@ -106,101 +151,113 @@ static int s_update_ref(const char *action,
        return 0;
 }
 
+#define SUMMARY_WIDTH (2 * DEFAULT_ABBREV + 3)
+#define REFCOL_WIDTH  10
+
 static int update_local_ref(struct ref *ref,
-                           const char *note,
-                           int verbose)
+                           const char *remote,
+                           int verbose,
+                           char *display)
 {
-       char oldh[41], newh[41];
        struct commit *current = NULL, *updated;
        enum object_type type;
        struct branch *current_branch = branch_get(NULL);
+       const char *pretty_ref = ref->name + (
+               !prefixcmp(ref->name, "refs/heads/") ? 11 :
+               !prefixcmp(ref->name, "refs/tags/") ? 10 :
+               !prefixcmp(ref->name, "refs/remotes/") ? 13 :
+               0);
 
+       *display = 0;
        type = sha1_object_info(ref->new_sha1, NULL);
        if (type < 0)
                die("object %s not found", sha1_to_hex(ref->new_sha1));
 
        if (!*ref->name) {
                /* Not storing */
-               if (verbose) {
-                       fprintf(stderr, "* fetched %s\n", note);
-                       show_new(type, ref->new_sha1);
-               }
+               if (verbose)
+                       sprintf(display, "* branch %s -> FETCH_HEAD", remote);
                return 0;
        }
 
        if (!hashcmp(ref->old_sha1, ref->new_sha1)) {
-               if (verbose) {
-                       fprintf(stderr, "* %s: same as %s\n",
-                               ref->name, note);
-                       show_new(type, ref->new_sha1);
-               }
+               if (verbose)
+                       sprintf(display, "= %-*s %-*s -> %s", SUMMARY_WIDTH,
+                               "[up to date]", REFCOL_WIDTH, remote,
+                               pretty_ref);
                return 0;
        }
 
-       if (!strcmp(ref->name, current_branch->name) &&
+       if (current_branch &&
+           !strcmp(ref->name, current_branch->name) &&
            !(update_head_ok || is_bare_repository()) &&
            !is_null_sha1(ref->old_sha1)) {
                /*
                 * If this is the head, and it's not okay to update
                 * the head, and the old value of the head isn't empty...
                 */
-               fprintf(stderr,
-                       " * %s: Cannot fetch into the current branch.\n",
-                       ref->name);
+               sprintf(display, "! %-*s %-*s -> %s  (can't fetch in current branch)",
+                       SUMMARY_WIDTH, "[rejected]", REFCOL_WIDTH, remote,
+                       pretty_ref);
                return 1;
        }
 
        if (!is_null_sha1(ref->old_sha1) &&
            !prefixcmp(ref->name, "refs/tags/")) {
-               fprintf(stderr, "* %s: updating with %s\n",
-                       ref->name, note);
-               show_new(type, ref->new_sha1);
+               sprintf(display, "- %-*s %-*s -> %s",
+                       SUMMARY_WIDTH, "[tag update]", REFCOL_WIDTH, remote,
+                       pretty_ref);
                return s_update_ref("updating tag", ref, 0);
        }
 
-       current = lookup_commit_reference(ref->old_sha1);
-       updated = lookup_commit_reference(ref->new_sha1);
+       current = lookup_commit_reference_gently(ref->old_sha1, 1);
+       updated = lookup_commit_reference_gently(ref->new_sha1, 1);
        if (!current || !updated) {
-               char *msg;
-               if (!strncmp(ref->name, "refs/tags/", 10))
+               const char *msg;
+               const char *what;
+               if (!strncmp(ref->name, "refs/tags/", 10)) {
                        msg = "storing tag";
-               else
+                       what = "[new tag]";
+               }
+               else {
                        msg = "storing head";
-               fprintf(stderr, "* %s: storing %s\n",
-                       ref->name, note);
-               show_new(type, ref->new_sha1);
+                       what = "[new branch]";
+               }
+
+               sprintf(display, "* %-*s %-*s -> %s", SUMMARY_WIDTH, what,
+                       REFCOL_WIDTH, remote, pretty_ref);
                return s_update_ref(msg, ref, 0);
        }
 
-       strcpy(oldh, find_unique_abbrev(current->object.sha1, DEFAULT_ABBREV));
-       strcpy(newh, find_unique_abbrev(ref->new_sha1, DEFAULT_ABBREV));
-
        if (in_merge_bases(current, &updated, 1)) {
-               fprintf(stderr, "* %s: fast forward to %s\n",
-                       ref->name, note);
-               fprintf(stderr, "  old..new: %s..%s\n", oldh, newh);
+               char quickref[83];
+               strcpy(quickref, find_unique_abbrev(current->object.sha1, DEFAULT_ABBREV));
+               strcat(quickref, "..");
+               strcat(quickref, find_unique_abbrev(ref->new_sha1, DEFAULT_ABBREV));
+               sprintf(display, "  %-*s %-*s -> %s", SUMMARY_WIDTH, quickref,
+                       REFCOL_WIDTH, remote, pretty_ref);
                return s_update_ref("fast forward", ref, 1);
-       }
-       if (!force && !ref->force) {
-               fprintf(stderr,
-                       "* %s: not updating to non-fast forward %s\n",
-                       ref->name, note);
-               fprintf(stderr,
-                       "  old...new: %s...%s\n", oldh, newh);
+       } else if (force || ref->force) {
+               char quickref[84];
+               strcpy(quickref, find_unique_abbrev(current->object.sha1, DEFAULT_ABBREV));
+               strcat(quickref, "...");
+               strcat(quickref, find_unique_abbrev(ref->new_sha1, DEFAULT_ABBREV));
+               sprintf(display, "+ %-*s %-*s -> %s  (forced update)",
+                       SUMMARY_WIDTH, quickref, REFCOL_WIDTH, remote, pretty_ref);
+               return s_update_ref("forced-update", ref, 1);
+       } else {
+               sprintf(display, "! %-*s %-*s -> %s  (non fast forward)",
+                       SUMMARY_WIDTH, "[rejected]", REFCOL_WIDTH, remote,
+                       pretty_ref);
                return 1;
        }
-       fprintf(stderr,
-               "* %s: forcing update to non-fast forward %s\n",
-               ref->name, note);
-       fprintf(stderr, "  old...new: %s...%s\n", oldh, newh);
-       return s_update_ref("forced-update", ref, 1);
 }
 
 static void store_updated_refs(const char *url, struct ref *ref_map)
 {
        FILE *fp;
        struct commit *commit;
-       int url_len, i, note_len;
+       int url_len, i, note_len, shown_url = 0;
        char note[1024];
        const char *what, *kind;
        struct ref *rm;
@@ -217,7 +274,7 @@ static void store_updated_refs(const char *url, struct ref *ref_map)
                        ref->force = rm->peer_ref->force;
                }
 
-               commit = lookup_commit_reference(rm->old_sha1);
+               commit = lookup_commit_reference_gently(rm->old_sha1, 1);
                if (!commit)
                        rm->merge = 0;
 
@@ -263,8 +320,17 @@ static void store_updated_refs(const char *url, struct ref *ref_map)
                        rm->merge ? "" : "not-for-merge",
                        note);
 
-               if (ref)
-                       update_local_ref(ref, note, verbose);
+               if (ref) {
+                       update_local_ref(ref, what, verbose, note);
+                       if (*note) {
+                               if (!shown_url) {
+                                       fprintf(stderr, "From %.*s\n",
+                                                       url_len, url);
+                                       shown_url = 1;
+                               }
+                               fprintf(stderr, " %s\n", note);
+                       }
+               }
        }
        fclose(fp);
 }
@@ -274,6 +340,7 @@ static int fetch_refs(struct transport *transport, struct ref *ref_map)
        int ret = transport_fetch_refs(transport, ref_map);
        if (!ret)
                store_updated_refs(transport->url, ref_map);
+       transport_unlock_pack(transport);
        return ret;
 }
 
@@ -323,9 +390,6 @@ static struct ref *find_non_local_tags(struct transport *transport,
                if (!path_list_has_path(&existing_refs, ref_name) &&
                    !path_list_has_path(&new_refs, ref_name) &&
                    lookup_object(ref->old_sha1)) {
-                       fprintf(stderr, "Auto-following %s\n",
-                               ref_name);
-
                        path_list_insert(ref_name, &new_refs);
 
                        rm = alloc_ref(strlen(ref_name) + 1);
@@ -354,8 +418,7 @@ static int do_fetch(struct transport *transport,
        if (transport->remote->fetch_tags == -1)
                no_tags = 1;
 
-       if (!transport->ops || !transport->ops->get_refs_list ||
-           !(transport->ops->fetch_refs || transport->ops->fetch_objs))
+       if (!transport->get_refs_list || !transport->fetch)
                die("Don't know how to fetch from %s", transport->url);
 
        /* if not appending, truncate FETCH_HEAD */
@@ -392,10 +455,20 @@ static int do_fetch(struct transport *transport,
        return 0;
 }
 
+static void set_option(const char *name, const char *value)
+{
+       int r = transport_set_option(transport, name, value);
+       if (r < 0)
+               die("Option \"%s\" value \"%s\" is not valid for %s\n",
+                       name, value, transport->url);
+       if (r > 0)
+               warning("Option \"%s\" is ignored for %s\n",
+                       name, transport->url);
+}
+
 int cmd_fetch(int argc, const char **argv, const char *prefix)
 {
        struct remote *remote;
-       struct transport *transport;
        int i, j, rla_offset;
        static const char **refs = NULL;
        int ref_nr = 0;
@@ -455,7 +528,7 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
                        depth = argv[i];
                        continue;
                }
-               if (!strcmp(arg, "--quiet")) {
+               if (!strcmp(arg, "--quiet") || !strcmp(arg, "-q")) {
                        quiet = 1;
                        continue;
                }
@@ -482,16 +555,17 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
        else
                remote = remote_get(argv[i++]);
 
-       transport = transport_get(remote, remote->uri[0], 1);
+       transport = transport_get(remote, remote->url[0]);
        if (verbose >= 2)
                transport->verbose = 1;
        if (quiet)
-               transport->verbose = 0;
+               transport->verbose = -1;
        if (upload_pack)
-               transport_set_option(transport, TRANS_OPT_UPLOADPACK, upload_pack);
+               set_option(TRANS_OPT_UPLOADPACK, upload_pack);
        if (keep)
-               transport_set_option(transport, TRANS_OPT_KEEP, "yes");
-       transport_set_option(transport, TRANS_OPT_DEPTH, depth);
+               set_option(TRANS_OPT_KEEP, "yes");
+       if (depth)
+               set_option(TRANS_OPT_DEPTH, depth);
 
        if (!transport->url)
                die("Where do you want to fetch from today?");
@@ -515,9 +589,9 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
                }
                refs[j] = NULL;
                ref_nr = j;
-               for (j = 0; refs[j]; j++)
-                       printf("ref: %s\n", refs[j]);
        }
 
+       signal(SIGINT, unlock_pack_on_signal);
+       atexit(unlock_pack);
        return do_fetch(transport, parse_ref_spec(ref_nr, refs), ref_nr);
 }