#include "sigchain.h"
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]",
+ "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 all, append, force, keep, multiple, update_head_ok, verbosity;
+static int all, append, dry_run, force, keep, multiple, prune, update_head_ok, verbosity;
static int tags = TAGS_DEFAULT;
static const char *depth;
static const char *upload_pack;
"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(0, "dry-run", &dry_run,
+ "dry run"),
OPT_BOOLEAN('k', "keep", &keep, "keep downloaded pack"),
OPT_BOOLEAN('u', "update-head-ok", &update_head_ok,
"allow updating of HEAD ref"),
* there is no entry in the resulting FETCH_HEAD marked
* for merging.
*/
+ memset(&refspec, 0, sizeof(refspec));
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;
char *rla = getenv("GIT_REFLOG_ACTION");
static struct ref_lock *lock;
+ if (dry_run)
+ return 0;
if (!rla)
rla = default_rla.buf;
snprintf(msg, sizeof(msg), "%s: %s", rla, action);
strcpy(quickref, find_unique_abbrev(current->object.sha1, DEFAULT_ABBREV));
strcat(quickref, "..");
strcat(quickref, find_unique_abbrev(ref->new_sha1, DEFAULT_ABBREV));
- r = s_update_ref("fast forward", ref, 1);
+ r = s_update_ref("fast-forward", ref, 1);
sprintf(display, "%c %-*s %-*s -> %s%s", r ? '!' : ' ',
SUMMARY_WIDTH, quickref, REFCOL_WIDTH, remote,
pretty_ref, r ? " (unable to update local ref)" : "");
r ? "unable to update local ref" : "forced update");
return r;
} else {
- sprintf(display, "! %-*s %-*s -> %s (non fast forward)",
+ sprintf(display, "! %-*s %-*s -> %s (non-fast-forward)",
SUMMARY_WIDTH, "[rejected]", REFCOL_WIDTH, remote,
pretty_ref);
return 1;
char note[1024];
const char *what, *kind;
struct ref *rm;
- char *url, *filename = git_path("FETCH_HEAD");
+ char *url, *filename = dry_run ? "/dev/null" : git_path("FETCH_HEAD");
fp = fopen(filename, "a");
if (!fp)
return error("cannot open %s: %s\n", filename, strerror(errno));
- url = transport_anonymize_url(raw_url);
+ if (raw_url)
+ url = transport_anonymize_url(raw_url);
+ else
+ url = xstrdup("foreign");
for (rm = ref_map; rm; rm = rm->next) {
struct ref *ref = NULL;
fputc(url[i], fp);
fputc('\n', fp);
- if (ref)
+ if (ref) {
rc |= update_local_ref(ref, what, note);
- else
+ free(ref);
+ } else
sprintf(note, "* %-*s %-*s -> FETCH_HEAD",
SUMMARY_WIDTH, *kind ? kind : "branch",
REFCOL_WIDTH, *what ? what : "HEAD");
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)
{
struct string_list *list = (struct string_list *)cbdata;
- string_list_insert(refname, list);
+ struct string_list_item *item = string_list_insert(refname, list);
+ item->util = (void *)sha1;
return 0;
}
return 0;
}
+struct tag_data {
+ struct ref **head;
+ struct ref ***tail;
+};
+
+static int add_to_tail(struct string_list_item *item, void *cb_data)
+{
+ struct tag_data *data = (struct tag_data *)cb_data;
+ struct ref *rm = NULL;
+
+ /* We have already decided to ignore this item */
+ if (!item->util)
+ return 0;
+
+ rm = alloc_ref(item->string);
+ rm->peer_ref = alloc_ref(item->string);
+ hashcpy(rm->old_sha1, item->util);
+
+ **data->tail = rm;
+ *data->tail = &rm->next;
+
+ return 0;
+}
+
static void find_non_local_tags(struct transport *transport,
struct ref **head,
struct ref ***tail)
{
struct string_list existing_refs = { NULL, 0, 0, 0 };
- struct string_list new_refs = { NULL, 0, 0, 1 };
- char *ref_name;
- int ref_name_len;
- const unsigned char *ref_sha1;
- const struct ref *tag_ref;
- struct ref *rm = NULL;
+ struct string_list remote_refs = { NULL, 0, 0, 0 };
+ struct tag_data data = {head, tail};
const struct ref *ref;
+ struct string_list_item *item = NULL;
for_each_ref(add_existing, &existing_refs);
for (ref = transport_get_remote_refs(transport); ref; ref = ref->next) {
if (prefixcmp(ref->name, "refs/tags"))
continue;
- ref_name = xstrdup(ref->name);
- ref_name_len = strlen(ref_name);
- ref_sha1 = ref->old_sha1;
-
- if (!strcmp(ref_name + ref_name_len - 3, "^{}")) {
- ref_name[ref_name_len - 3] = 0;
- tag_ref = transport_get_remote_refs(transport);
- while (tag_ref) {
- if (!strcmp(tag_ref->name, ref_name)) {
- ref_sha1 = tag_ref->old_sha1;
- break;
- }
- tag_ref = tag_ref->next;
- }
+ /*
+ * The peeled ref always follows the matching base
+ * ref, so if we see a peeled ref that we don't want
+ * to fetch then we can mark the ref entry in the list
+ * as one to ignore by setting util to NULL.
+ */
+ if (!suffixcmp(ref->name, "^{}")) {
+ if (item && !has_sha1_file(ref->old_sha1) &&
+ !will_fetch(head, ref->old_sha1) &&
+ !has_sha1_file(item->util) &&
+ !will_fetch(head, item->util))
+ item->util = NULL;
+ item = NULL;
+ continue;
}
- if (!string_list_has_string(&existing_refs, ref_name) &&
- !string_list_has_string(&new_refs, ref_name) &&
- (has_sha1_file(ref->old_sha1) ||
- will_fetch(head, ref->old_sha1))) {
- string_list_insert(ref_name, &new_refs);
+ /*
+ * If item is non-NULL here, then we previously saw a
+ * ref not followed by a peeled reference, so we need
+ * to check if it is a lightweight tag that we want to
+ * fetch.
+ */
+ if (item && !has_sha1_file(item->util) &&
+ !will_fetch(head, item->util))
+ item->util = NULL;
- rm = alloc_ref(ref_name);
- rm->peer_ref = alloc_ref(ref_name);
- hashcpy(rm->old_sha1, ref_sha1);
+ item = NULL;
- **tail = rm;
- *tail = &rm->next;
- }
- free(ref_name);
+ /* skip duplicates and refs that we already have */
+ if (string_list_has_string(&remote_refs, ref->name) ||
+ string_list_has_string(&existing_refs, ref->name))
+ continue;
+
+ item = string_list_insert(ref->name, &remote_refs);
+ item->util = (void *)ref->old_sha1;
}
string_list_clear(&existing_refs, 0);
- string_list_clear(&new_refs, 0);
+
+ /*
+ * We may have a final lightweight tag that needs to be
+ * checked to see if it needs fetching.
+ */
+ if (item && !has_sha1_file(item->util) &&
+ !will_fetch(head, item->util))
+ item->util = NULL;
+
+ /*
+ * For all the tags in the remote_refs string list, call
+ * add_to_tail to add them to the list of refs to be fetched
+ */
+ for_each_string_list(add_to_tail, &remote_refs, &data);
+
+ string_list_clear(&remote_refs, 0);
}
static void check_not_current_branch(struct ref *ref_map)
"of non-bare repository", current_branch->refname);
}
+static int truncate_fetch_head(void)
+{
+ char *filename = git_path("FETCH_HEAD");
+ FILE *fp = fopen(filename, "w");
+
+ if (!fp)
+ return error("cannot open %s: %s\n", filename, strerror(errno));
+ fclose(fp);
+ return 0;
+}
+
static int do_fetch(struct transport *transport,
struct refspec *refs, int ref_count)
{
+ struct string_list existing_refs = { NULL, 0, 0, 0 };
+ struct string_list_item *peer_item = NULL;
struct ref *ref_map;
struct ref *rm;
int autotags = (transport->remote->fetch_tags == 1);
+
+ for_each_ref(add_existing, &existing_refs);
+
if (transport->remote->fetch_tags == 2 && tags != TAGS_UNSET)
tags = TAGS_SET;
if (transport->remote->fetch_tags == -1)
die("Don't know how to fetch from %s", transport->url);
/* if not appending, truncate FETCH_HEAD */
- if (!append) {
- char *filename = git_path("FETCH_HEAD");
- FILE *fp = fopen(filename, "w");
- if (!fp)
- return error("cannot open %s: %s\n", filename, strerror(errno));
- fclose(fp);
+ if (!append && !dry_run) {
+ int errcode = truncate_fetch_head();
+ if (errcode)
+ return errcode;
}
ref_map = get_ref_map(transport, refs, ref_count, tags, &autotags);
check_not_current_branch(ref_map);
for (rm = ref_map; rm; rm = rm->next) {
- if (rm->peer_ref)
- read_ref(rm->peer_ref->name, rm->peer_ref->old_sha1);
+ if (rm->peer_ref) {
+ peer_item = string_list_lookup(rm->peer_ref->name,
+ &existing_refs);
+ if (peer_item)
+ hashcpy(rm->peer_ref->old_sha1,
+ peer_item->util);
+ }
}
if (tags == TAGS_DEFAULT && autotags)
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
static int get_one_remote_for_fetch(struct remote *remote, void *priv)
{
struct string_list *list = priv;
- string_list_append(remote->name, list);
+ if (!remote->skip_default_update)
+ string_list_append(remote->name, list);
return 0;
}
static int fetch_multiple(struct string_list *list)
{
int i, result = 0;
- const char *argv[] = { "fetch", NULL, NULL, NULL, NULL };
- int argc = 1;
-
+ const char *argv[11] = { "fetch", "--append" };
+ int argc = 2;
+
+ if (dry_run)
+ argv[argc++] = "--dry-run";
+ if (prune)
+ argv[argc++] = "--prune";
+ if (update_head_ok)
+ argv[argc++] = "--update-head-ok";
+ if (force)
+ argv[argc++] = "--force";
+ if (keep)
+ argv[argc++] = "--keep";
if (verbosity >= 2)
argv[argc++] = "-v";
if (verbosity >= 1)
else if (verbosity < 0)
argv[argc++] = "-q";
+ if (!append && !dry_run) {
+ int errcode = truncate_fetch_head();
+ if (errcode)
+ return errcode;
+ }
+
for (i = 0; i < list->nr; i++) {
const char *name = list->items[i].string;
argv[argc] = name;
+ argv[argc + 1] = NULL;
if (verbosity >= 0)
printf("Fetching %s\n", name);
if (run_command_v_opt(argv, RUN_GIT_CMD)) {
if (!remote)
die("Where do you want to fetch from today?");
- transport = transport_get(remote, remote->url[0]);
+ transport = transport_get(remote, NULL);
if (verbosity >= 2)
- transport->verbose = 1;
+ transport->verbose = verbosity <= 3 ? verbosity : 3;
if (verbosity < 0)
transport->verbose = -1;
if (upload_pack)