static const char * const builtin_fetch_usage[] = {
"git fetch [options] [<repository> <refspec>...]",
+ "git fetch [options] <group>",
+ "git fetch --multiple [options] [<repository> | <group>]...",
+ "git fetch --all [options]",
NULL
};
TAGS_SET = 2
};
-static int append, force, keep, update_head_ok, verbosity;
+static int all, append, force, keep, multiple, prune, update_head_ok, verbosity;
static int tags = TAGS_DEFAULT;
static const char *depth;
static const char *upload_pack;
static struct option builtin_fetch_options[] = {
OPT__VERBOSITY(&verbosity),
+ OPT_BOOLEAN(0, "all", &all,
+ "fetch from all remotes"),
OPT_BOOLEAN('a', "append", &append,
"append to .git/FETCH_HEAD instead of overwriting"),
OPT_STRING(0, "upload-pack", &upload_pack, "PATH",
"path to upload pack on remote end"),
OPT_BOOLEAN('f', "force", &force,
"force overwrite of local branch"),
+ OPT_BOOLEAN('m', "multiple", &multiple,
+ "fetch from multiple remotes"),
OPT_SET_INT('t', "tags", &tags,
"fetch all tags and associated objects", TAGS_SET),
OPT_SET_INT('n', NULL, &tags,
"do not fetch all tags (--no-tags)", TAGS_UNSET),
+ OPT_BOOLEAN('p', "prune", &prune,
+ "prune tracking branches no longer on remote"),
OPT_BOOLEAN('k', "keep", &keep, "keep downloaded pack"),
OPT_BOOLEAN('u', "update-head-ok", &update_head_ok,
"allow updating of HEAD ref"),
/*
* We would want to bypass the object transfer altogether if
- * everything we are going to fetch already exists and connected
+ * everything we are going to fetch already exists and is connected
* locally.
*
- * The refs we are going to fetch are in to_fetch (nr_heads in
- * total). If running
+ * The refs we are going to fetch are in ref_map. If running
*
- * $ git rev-list --objects to_fetch[0] to_fetch[1] ... --not --all
+ * $ git rev-list --objects --stdin --not --all
*
+ * (feeding all the refs in ref_map on its standard input)
* does not error out, that means everything reachable from the
* refs we are going to fetch exists and is connected to some of
* our existing refs.
{
struct child_process revlist;
struct ref *ref;
- char **argv;
- int i, err;
+ int err;
+ const char *argv[] = {"rev-list",
+ "--quiet", "--objects", "--stdin", "--not", "--all", NULL};
/*
* If we are deepening a shallow clone we already have these
if (depth)
return -1;
- for (i = 0, ref = ref_map; ref; ref = ref->next)
- i++;
- if (!i)
+ if (!ref_map)
return 0;
- argv = xmalloc(sizeof(*argv) * (i + 6));
- i = 0;
- argv[i++] = xstrdup("rev-list");
- argv[i++] = xstrdup("--quiet");
- argv[i++] = xstrdup("--objects");
- for (ref = ref_map; ref; ref = ref->next)
- argv[i++] = xstrdup(sha1_to_hex(ref->old_sha1));
- argv[i++] = xstrdup("--not");
- argv[i++] = xstrdup("--all");
- argv[i++] = NULL;
-
memset(&revlist, 0, sizeof(revlist));
- revlist.argv = (const char**)argv;
+ revlist.argv = argv;
revlist.git_cmd = 1;
- revlist.no_stdin = 1;
revlist.no_stdout = 1;
revlist.no_stderr = 1;
- err = run_command(&revlist);
+ revlist.in = -1;
+
+ err = start_command(&revlist);
+ if (err) {
+ error("could not run rev-list");
+ return err;
+ }
+
+ /*
+ * If rev-list --stdin encounters an unknown commit, it terminates,
+ * which will cause SIGPIPE in the write loop below.
+ */
+ sigchain_push(SIGPIPE, SIG_IGN);
+
+ for (ref = ref_map; ref; ref = ref->next) {
+ if (write_in_full(revlist.in, sha1_to_hex(ref->old_sha1), 40) < 0 ||
+ write_str_in_full(revlist.in, "\n") < 0) {
+ if (errno != EPIPE && errno != EINVAL)
+ error("failed write to rev-list: %s", strerror(errno));
+ err = -1;
+ break;
+ }
+ }
+
+ if (close(revlist.in)) {
+ error("failed to close rev-list's stdin: %s", strerror(errno));
+ err = -1;
+ }
- for (i = 0; argv[i]; i++)
- free(argv[i]);
- free(argv);
- return err;
+ sigchain_pop(SIGPIPE);
+
+ return finish_command(&revlist) || err;
}
static int fetch_refs(struct transport *transport, struct ref *ref_map)
return ret;
}
+static int prune_refs(struct transport *transport, struct ref *ref_map)
+{
+ int result = 0;
+ struct ref *ref, *stale_refs = get_stale_heads(transport->remote, ref_map);
+ const char *dangling_msg = dry_run
+ ? " (%s will become dangling)\n"
+ : " (%s has become dangling)\n";
+
+ for (ref = stale_refs; ref; ref = ref->next) {
+ if (!dry_run)
+ result |= delete_ref(ref->name, NULL, 0);
+ if (verbosity >= 0) {
+ fprintf(stderr, " x %-*s %-*s -> %s\n",
+ SUMMARY_WIDTH, "[deleted]",
+ REFCOL_WIDTH, "(none)", prettify_refname(ref->name));
+ warn_dangling_symref(stderr, dangling_msg, ref->name);
+ }
+ }
+ free_refs(stale_refs);
+ return result;
+}
+
static int add_existing(const char *refname, const unsigned char *sha1,
int flag, void *cbdata)
{
free_refs(ref_map);
return 1;
}
+ if (prune)
+ prune_refs(transport, ref_map);
free_refs(ref_map);
/* if neither --no-tags nor --tags was specified, do automated tag
name, transport->url);
}
-int cmd_fetch(int argc, const char **argv, const char *prefix)
+static int get_one_remote_for_fetch(struct remote *remote, void *priv)
+{
+ struct string_list *list = priv;
+ if (!remote->skip_default_update)
+ string_list_append(remote->name, list);
+ return 0;
+}
+
+struct remote_group_data {
+ const char *name;
+ struct string_list *list;
+};
+
+static int get_remote_group(const char *key, const char *value, void *priv)
+{
+ struct remote_group_data *g = priv;
+
+ if (!prefixcmp(key, "remotes.") &&
+ !strcmp(key + 8, g->name)) {
+ /* split list by white space */
+ int space = strcspn(value, " \t\n");
+ while (*value) {
+ if (space > 1) {
+ string_list_append(xstrndup(value, space),
+ g->list);
+ }
+ value += space + (value[space] != '\0');
+ space = strcspn(value, " \t\n");
+ }
+ }
+
+ return 0;
+}
+
+static int add_remote_or_group(const char *name, struct string_list *list)
+{
+ int prev_nr = list->nr;
+ struct remote_group_data g = { name, list };
+
+ git_config(get_remote_group, &g);
+ if (list->nr == prev_nr) {
+ struct remote *remote;
+ if (!remote_is_configured(name))
+ return 0;
+ remote = remote_get(name);
+ string_list_append(remote->name, list);
+ }
+ return 1;
+}
+
+static int fetch_multiple(struct string_list *list)
+{
+ int i, result = 0;
+ const char *argv[] = { "fetch", NULL, NULL, NULL, NULL, NULL };
+ int argc = 1;
+
+ if (prune)
+ argv[argc++] = "--prune";
+ if (verbosity >= 2)
+ argv[argc++] = "-v";
+ if (verbosity >= 1)
+ argv[argc++] = "-v";
+ else if (verbosity < 0)
+ argv[argc++] = "-q";
+
+ for (i = 0; i < list->nr; i++) {
+ const char *name = list->items[i].string;
+ argv[argc] = name;
+ if (verbosity >= 0)
+ printf("Fetching %s\n", name);
+ if (run_command_v_opt(argv, RUN_GIT_CMD)) {
+ error("Could not fetch %s", name);
+ result = 1;
+ }
+ }
+
+ return result;
+}
+
+static int fetch_one(struct remote *remote, int argc, const char **argv)
{
- struct remote *remote;
int i;
static const char **refs = NULL;
int ref_nr = 0;
int exit_code;
- /* Record the command line for the reflog */
- strbuf_addstr(&default_rla, "fetch");
- for (i = 1; i < argc; i++)
- strbuf_addf(&default_rla, " %s", argv[i]);
-
- argc = parse_options(argc, argv, prefix,
- builtin_fetch_options, builtin_fetch_usage, 0);
-
- if (argc == 0)
- remote = remote_get(NULL);
- else
- remote = remote_get(argv[0]);
-
if (!remote)
die("Where do you want to fetch from today?");
if (depth)
set_option(TRANS_OPT_DEPTH, depth);
- if (argc > 1) {
+ if (argc > 0) {
int j = 0;
refs = xcalloc(argc + 1, sizeof(const char *));
- for (i = 1; i < argc; i++) {
+ for (i = 0; i < argc; i++) {
if (!strcmp(argv[i], "tag")) {
char *ref;
i++;
transport = NULL;
return exit_code;
}
+
+int cmd_fetch(int argc, const char **argv, const char *prefix)
+{
+ int i;
+ struct string_list list = { NULL, 0, 0, 0 };
+ struct remote *remote;
+ int result = 0;
+
+ /* Record the command line for the reflog */
+ strbuf_addstr(&default_rla, "fetch");
+ for (i = 1; i < argc; i++)
+ strbuf_addf(&default_rla, " %s", argv[i]);
+
+ argc = parse_options(argc, argv, prefix,
+ builtin_fetch_options, builtin_fetch_usage, 0);
+
+ if (all) {
+ if (argc == 1)
+ die("fetch --all does not take a repository argument");
+ else if (argc > 1)
+ die("fetch --all does not make sense with refspecs");
+ (void) for_each_remote(get_one_remote_for_fetch, &list);
+ result = fetch_multiple(&list);
+ } else if (argc == 0) {
+ /* No arguments -- use default remote */
+ remote = remote_get(NULL);
+ result = fetch_one(remote, argc, argv);
+ } else if (multiple) {
+ /* All arguments are assumed to be remotes or groups */
+ for (i = 0; i < argc; i++)
+ if (!add_remote_or_group(argv[i], &list))
+ die("No such remote or remote group: %s", argv[i]);
+ result = fetch_multiple(&list);
+ } else {
+ /* Single remote or group */
+ (void) add_remote_or_group(argv[0], &list);
+ if (list.nr > 1) {
+ /* More than one remote */
+ if (argc > 1)
+ die("Fetching a group and specifying refspecs does not make sense");
+ result = fetch_multiple(&list);
+ } else {
+ /* Zero or one remotes */
+ remote = remote_get(argv[0]);
+ result = fetch_one(remote, argc-1, argv+1);
+ }
+ }
+
+ /* All names were strdup()ed or strndup()ed */
+ list.strdup_strings = 1;
+ string_list_clear(&list, 0);
+
+ return result;
+}