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#include "cache.h" #include "parse-options.h" #include "transport.h" #include "remote.h" #include "path-list.h" #include "strbuf.h" #include "run-command.h" #include "refs.h" static const char * const builtin_remote_usage[] = { "git remote", "git remote add <name> <url>", "git remote rm <name>", "git remote show <name>", "git remote prune <name>", "git remote update [group]", NULL }; static int verbose; static inline int postfixcmp(const char *string, const char *postfix) { int len1 = strlen(string), len2 = strlen(postfix); if (len1 < len2) return 1; return strcmp(string + len1 - len2, postfix); } static inline const char *skip_prefix(const char *name, const char *prefix) { return !name ? "" : prefixcmp(name, prefix) ? name : name + strlen(prefix); } static int opt_parse_track(const struct option *opt, const char *arg, int not) { struct path_list *list = opt->value; if (not) path_list_clear(list, 0); else path_list_append(arg, list); return 0; } static int fetch_remote(const char *name) { const char *argv[] = { "fetch", name, NULL }; printf("Updating %s\n", name); if (run_command_v_opt(argv, RUN_GIT_CMD)) return error("Could not fetch %s", name); return 0; } static int add(int argc, const char **argv) { int fetch = 0, mirror = 0; struct path_list track = { NULL, 0, 0 }; const char *master = NULL; struct remote *remote; struct strbuf buf, buf2; const char *name, *url; int i; struct option options[] = { OPT_GROUP("add specific options"), OPT_BOOLEAN('f', "fetch", &fetch, "fetch the remote branches"), OPT_CALLBACK('t', "track", &track, "branch", "branch(es) to track", opt_parse_track), OPT_STRING('m', "master", &master, "branch", "master branch"), OPT_BOOLEAN(0, "mirror", &mirror, "no separate remotes"), OPT_END() }; argc = parse_options(argc, argv, options, builtin_remote_usage, 0); if (argc < 2) usage_with_options(builtin_remote_usage, options); name = argv[0]; url = argv[1]; remote = remote_get(name); if (remote && (remote->url_nr > 1 || strcmp(name, remote->url[0]) || remote->fetch_refspec_nr)) die("remote %s already exists.", name); strbuf_init(&buf, 0); strbuf_init(&buf2, 0); strbuf_addf(&buf, "remote.%s.url", name); if (git_config_set(buf.buf, url)) return 1; if (track.nr == 0) path_list_append("*", &track); for (i = 0; i < track.nr; i++) { struct path_list_item *item = track.items + i; strbuf_reset(&buf); strbuf_addf(&buf, "remote.%s.fetch", name); strbuf_reset(&buf2); if (mirror) strbuf_addf(&buf2, "refs/%s:refs/%s", item->path, item->path); else strbuf_addf(&buf2, "refs/heads/%s:refs/remotes/%s/%s", item->path, name, item->path); if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0)) return 1; } if (fetch && fetch_remote(name)) return 1; if (master) { strbuf_reset(&buf); strbuf_addf(&buf, "refs/remotes/%s/HEAD", name); strbuf_reset(&buf2); strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master); if (create_symref(buf.buf, buf2.buf, "remote add")) return error("Could not setup master '%s'", master); } strbuf_release(&buf); strbuf_release(&buf2); path_list_clear(&track, 0); return 0; } struct branch_info { char *remote; struct path_list merge; }; static struct path_list branch_list; static int config_read_branches(const char *key, const char *value) { if (!prefixcmp(key, "branch.")) { char *name; struct path_list_item *item; struct branch_info *info; enum { REMOTE, MERGE } type; key += 7; if (!postfixcmp(key, ".remote")) { name = xstrndup(key, strlen(key) - 7); type = REMOTE; } else if (!postfixcmp(key, ".merge")) { name = xstrndup(key, strlen(key) - 6); type = MERGE; } else return 0; item = path_list_insert(name, &branch_list); if (!item->util) item->util = xcalloc(sizeof(struct branch_info), 1); info = item->util; if (type == REMOTE) { if (info->remote) warning("more than one branch.%s", key); info->remote = xstrdup(value); } else { char *space = strchr(value, ' '); value = skip_prefix(value, "refs/heads/"); while (space) { char *merge; merge = xstrndup(value, space - value); path_list_append(merge, &info->merge); value = skip_prefix(space + 1, "refs/heads/"); space = strchr(value, ' '); } path_list_append(xstrdup(value), &info->merge); } } return 0; } static void read_branches(void) { if (branch_list.nr) return; git_config(config_read_branches); sort_path_list(&branch_list); } struct ref_states { struct remote *remote; struct strbuf remote_prefix; struct path_list new, stale, tracked; }; static int handle_one_branch(const char *refname, const unsigned char *sha1, int flags, void *cb_data) { struct ref_states *states = cb_data; struct refspec refspec; memset(&refspec, 0, sizeof(refspec)); refspec.dst = (char *)refname; if (!remote_find_tracking(states->remote, &refspec)) { struct path_list_item *item; const char *name = skip_prefix(refspec.src, "refs/heads/"); /* symbolic refs pointing nowhere were handled already */ if ((flags & REF_ISSYMREF) || unsorted_path_list_has_path(&states->tracked, name) || unsorted_path_list_has_path(&states->new, name)) return 0; item = path_list_append(name, &states->stale); item->util = xstrdup(refname); } return 0; } static int get_ref_states(const struct ref *ref, struct ref_states *states) { struct ref *fetch_map = NULL, **tail = &fetch_map; int i; for (i = 0; i < states->remote->fetch_refspec_nr; i++) if (get_fetch_map(ref, states->remote->fetch + i, &tail, 1)) die("Could not get fetch map for refspec %s", states->remote->fetch_refspec[i]); states->new.strdup_paths = states->tracked.strdup_paths = 1; for (ref = fetch_map; ref; ref = ref->next) { struct path_list *target = &states->tracked; unsigned char sha1[20]; void *util = NULL; if (!ref->peer_ref || read_ref(ref->peer_ref->name, sha1)) target = &states->new; else { target = &states->tracked; if (hashcmp(sha1, ref->new_sha1)) util = &states; } path_list_append(skip_prefix(ref->name, "refs/heads/"), target)->util = util; } free_refs(fetch_map); strbuf_addf(&states->remote_prefix, "refs/remotes/%s/", states->remote->name); for_each_ref(handle_one_branch, states); sort_path_list(&states->stale); return 0; } struct branches_for_remote { const char *prefix; struct path_list *branches; }; static int add_branch_for_removal(const char *refname, const unsigned char *sha1, int flags, void *cb_data) { struct branches_for_remote *branches = cb_data; if (!prefixcmp(refname, branches->prefix)) { struct path_list_item *item; /* make sure that symrefs are deleted */ if (flags & REF_ISSYMREF) return unlink(git_path(refname)); item = path_list_append(refname, branches->branches); item->util = xmalloc(20); hashcpy(item->util, sha1); } return 0; } static int remove_branches(struct path_list *branches) { int i, result = 0; for (i = 0; i < branches->nr; i++) { struct path_list_item *item = branches->items + i; const char *refname = item->path; unsigned char *sha1 = item->util; if (delete_ref(refname, sha1)) result |= error("Could not remove branch %s", refname); } return result; } static int rm(int argc, const char **argv) { struct option options[] = { OPT_END() }; struct remote *remote; struct strbuf buf; struct path_list branches = { NULL, 0, 0, 1 }; struct branches_for_remote cb_data = { NULL, &branches }; int i; if (argc != 2) usage_with_options(builtin_remote_usage, options); remote = remote_get(argv[1]); if (!remote) die("No such remote: %s", argv[1]); strbuf_init(&buf, 0); strbuf_addf(&buf, "remote.%s", remote->name); if (git_config_rename_section(buf.buf, NULL) < 1) return error("Could not remove config section '%s'", buf.buf); read_branches(); for (i = 0; i < branch_list.nr; i++) { struct path_list_item *item = branch_list.items + i; struct branch_info *info = item->util; if (info->remote && !strcmp(info->remote, remote->name)) { const char *keys[] = { "remote", "merge", NULL }, **k; for (k = keys; *k; k++) { strbuf_reset(&buf); strbuf_addf(&buf, "branch.%s.%s", item->path, *k); if (git_config_set(buf.buf, NULL)) { strbuf_release(&buf); return -1; } } } } /* * We cannot just pass a function to for_each_ref() which deletes * the branches one by one, since for_each_ref() relies on cached * refs, which are invalidated when deleting a branch. */ strbuf_reset(&buf); strbuf_addf(&buf, "refs/remotes/%s/", remote->name); cb_data.prefix = buf.buf; i = for_each_ref(add_branch_for_removal, &cb_data); strbuf_release(&buf); if (!i) i = remove_branches(&branches); path_list_clear(&branches, 1); return i; } static void show_list(const char *title, struct path_list *list) { int i; if (!list->nr) return; printf(title, list->nr > 1 ? "es" : ""); printf("\n "); for (i = 0; i < list->nr; i++) printf("%s%s", i ? " " : "", list->items[i].path); printf("\n"); } static int show_or_prune(int argc, const char **argv, int prune) { int dry_run = 0, result = 0; struct option options[] = { OPT_GROUP("show specific options"), OPT__DRY_RUN(&dry_run), OPT_END() }; struct ref_states states; argc = parse_options(argc, argv, options, builtin_remote_usage, 0); if (argc < 1) usage_with_options(builtin_remote_usage, options); memset(&states, 0, sizeof(states)); for (; argc; argc--, argv++) { struct transport *transport; const struct ref *ref; struct strbuf buf; int i, got_states; states.remote = remote_get(*argv); if (!states.remote) return error("No such remote: %s", *argv); transport = transport_get(NULL, states.remote->url_nr > 0 ? states.remote->url[0] : NULL); ref = transport_get_remote_refs(transport); transport_disconnect(transport); read_branches(); got_states = get_ref_states(ref, &states); if (got_states) result = error("Error getting local info for '%s'", states.remote->name); if (prune) { struct strbuf buf; int prefix_len; strbuf_init(&buf, 0); if (states.remote->fetch_refspec_nr == 1 && states.remote->fetch->pattern && !strcmp(states.remote->fetch->src, states.remote->fetch->dst)) /* handle --mirror remote */ strbuf_addstr(&buf, "refs/heads/"); else strbuf_addf(&buf, "refs/remotes/%s/", *argv); prefix_len = buf.len; for (i = 0; i < states.stale.nr; i++) { strbuf_setlen(&buf, prefix_len); strbuf_addstr(&buf, states.stale.items[i].path); result |= delete_ref(buf.buf, NULL); } strbuf_release(&buf); goto cleanup_states; } printf("* remote %s\n URL: %s\n", *argv, states.remote->url_nr > 0 ? states.remote->url[0] : "(no URL)"); for (i = 0; i < branch_list.nr; i++) { struct path_list_item *branch = branch_list.items + i; struct branch_info *info = branch->util; int j; if (!info->merge.nr || strcmp(*argv, info->remote)) continue; printf(" Remote branch%s merged with 'git pull' " "while on branch %s\n ", info->merge.nr > 1 ? "es" : "", branch->path); for (j = 0; j < info->merge.nr; j++) printf(" %s", info->merge.items[j].path); printf("\n"); } if (got_states) continue; strbuf_init(&buf, 0); strbuf_addf(&buf, " New remote branch%%s (next fetch will " "store in remotes/%s)", states.remote->name); show_list(buf.buf, &states.new); strbuf_release(&buf); show_list(" Stale tracking branch%s (use 'git remote prune')", &states.stale); show_list(" Tracked remote branch%s", &states.tracked); if (states.remote->push_refspec_nr) { printf(" Local branch%s pushed with 'git push'\n ", states.remote->push_refspec_nr > 1 ? "es" : ""); for (i = 0; i < states.remote->push_refspec_nr; i++) { struct refspec *spec = states.remote->push + i; printf(" %s%s%s%s", spec->force ? "+" : "", skip_prefix(spec->src, "refs/heads/"), spec->dst ? ":" : "", skip_prefix(spec->dst, "refs/heads/")); } printf("\n"); } cleanup_states: /* NEEDSWORK: free remote */ path_list_clear(&states.new, 0); path_list_clear(&states.stale, 0); path_list_clear(&states.tracked, 0); } return result; } static int get_one_remote_for_update(struct remote *remote, void *priv) { struct path_list *list = priv; if (!remote->skip_default_update) path_list_append(xstrdup(remote->name), list); return 0; } struct remote_group { const char *name; struct path_list *list; } remote_group; static int get_remote_group(const char *key, const char *value) { if (!prefixcmp(key, "remotes.") && !strcmp(key + 8, remote_group.name)) { /* split list by white space */ int space = strcspn(value, " \t\n"); while (*value) { if (space > 1) path_list_append(xstrndup(value, space), remote_group.list); value += space + (value[space] != '\0'); space = strcspn(value, " \t\n"); } } return 0; } static int update(int argc, const char **argv) { int i, result = 0; struct path_list list = { NULL, 0, 0, 0 }; static const char *default_argv[] = { NULL, "default", NULL }; if (argc < 2) { argc = 2; argv = default_argv; } remote_group.list = &list; for (i = 1; i < argc; i++) { remote_group.name = argv[i]; result = git_config(get_remote_group); } if (!result && !list.nr && argc == 2 && !strcmp(argv[1], "default")) result = for_each_remote(get_one_remote_for_update, &list); for (i = 0; i < list.nr; i++) result |= fetch_remote(list.items[i].path); /* all names were strdup()ed or strndup()ed */ list.strdup_paths = 1; path_list_clear(&list, 0); return result; } static int get_one_entry(struct remote *remote, void *priv) { struct path_list *list = priv; path_list_append(remote->name, list)->util = remote->url_nr ? (void *)remote->url[0] : NULL; if (remote->url_nr > 1) warning("Remote %s has more than one URL", remote->name); return 0; } static int show_all(void) { struct path_list list = { NULL, 0, 0 }; int result = for_each_remote(get_one_entry, &list); if (!result) { int i; sort_path_list(&list); for (i = 0; i < list.nr; i++) { struct path_list_item *item = list.items + i; printf("%s%s%s\n", item->path, verbose ? "\t" : "", verbose && item->util ? (const char *)item->util : ""); } } return result; } int cmd_remote(int argc, const char **argv, const char *prefix) { struct option options[] = { OPT__VERBOSE(&verbose), OPT_END() }; int result; argc = parse_options(argc, argv, options, builtin_remote_usage, PARSE_OPT_STOP_AT_NON_OPTION); if (argc < 1) result = show_all(); else if (!strcmp(argv[0], "add")) result = add(argc, argv); else if (!strcmp(argv[0], "rm")) result = rm(argc, argv); else if (!strcmp(argv[0], "show")) result = show_or_prune(argc, argv, 0); else if (!strcmp(argv[0], "prune")) result = show_or_prune(argc, argv, 1); else if (!strcmp(argv[0], "update")) result = update(argc, argv); else { error("Unknown subcommand: %s", argv[0]); usage_with_options(builtin_remote_usage, options); } return result ? 1 : 0; }
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