static void snarf_refs(int head, int remotes)
{
if (head) {
int orig_cnt = ref_name_cnt;
for_each_ref(append_head_ref, NULL);
sort_ref_range(orig_cnt, ref_name_cnt);
}
if (remotes) {
int orig_cnt = ref_name_cnt;
for_each_ref(append_remote_ref, NULL);
sort_ref_range(orig_cnt, ref_name_cnt);
}
}
static void snarf_refs(int head, int tag)
{
if (head) {
int orig_cnt = ref_name_cnt;
for_each_ref(append_head_ref);
sort_ref_range(orig_cnt, ref_name_cnt);
}
if (tag) {
int orig_cnt = ref_name_cnt;
for_each_ref(append_tag_ref);
sort_ref_range(orig_cnt, ref_name_cnt);
}
}
int for_each_glob_ref_in(each_ref_fn fn, const char *pattern,
const char *prefix, void *cb_data)
{
struct strbuf real_pattern = STRBUF_INIT;
struct ref_filter filter;
int ret;
if (!prefix && prefixcmp(pattern, "refs/"))
strbuf_addstr(&real_pattern, "refs/");
else if (prefix)
strbuf_addstr(&real_pattern, prefix);
strbuf_addstr(&real_pattern, pattern);
if (!has_glob_specials(pattern)) {
/* Append implied '/' '*' if not present. */
if (real_pattern.buf[real_pattern.len - 1] != '/')
strbuf_addch(&real_pattern, '/');
/* No need to check for '*', there is none. */
strbuf_addch(&real_pattern, '*');
}
filter.pattern = real_pattern.buf;
filter.fn = fn;
filter.cb_data = cb_data;
ret = for_each_ref(filter_refs, &filter);
strbuf_release(&real_pattern);
return ret;
}
int pack_refs(unsigned int flags)
{
int fd;
struct pack_refs_cb_data cbdata;
memset(&cbdata, 0, sizeof(cbdata));
cbdata.flags = flags;
fd = hold_lock_file_for_update(&packed, git_path("packed-refs"), 1);
cbdata.refs_file = fdopen(fd, "w");
if (!cbdata.refs_file)
die("unable to create ref-pack file structure (%s)",
strerror(errno));
/* perhaps other traits later as well */
fprintf(cbdata.refs_file, "# pack-refs with: peeled \n");
for_each_ref(handle_one_ref, &cbdata);
if (ferror(cbdata.refs_file))
die("failed to write ref-pack file");
if (fflush(cbdata.refs_file) || fsync(fd) || fclose(cbdata.refs_file))
die("failed to write ref-pack file (%s)", strerror(errno));
/*
* Since the lock file was fdopen()'ed and then fclose()'ed above,
* assign -1 to the lock file descriptor so that commit_lock_file()
* won't try to close() it.
*/
packed.fd = -1;
if (commit_lock_file(&packed) < 0)
die("unable to overwrite old ref-pack file (%s)", strerror(errno));
if (cbdata.flags & PACK_REFS_PRUNE)
prune_refs(cbdata.ref_to_prune);
return 0;
}
static void write_head_info(void)
{
for_each_ref(show_ref_cb, NULL);
if (!sent_capabilities)
show_ref("capabilities^{}", null_sha1, 0, NULL);
}
static void cmd_log_init(int argc, const char **argv, const char *prefix,
struct rev_info *rev)
{
int i;
int decorate = 0;
rev->abbrev = DEFAULT_ABBREV;
rev->commit_format = CMIT_FMT_DEFAULT;
if (fmt_pretty)
get_commit_format(fmt_pretty, rev);
rev->verbose_header = 1;
DIFF_OPT_SET(&rev->diffopt, RECURSIVE);
rev->show_root_diff = default_show_root;
rev->subject_prefix = fmt_patch_subject_prefix;
argc = setup_revisions(argc, argv, rev, "HEAD");
if (rev->diffopt.pickaxe || rev->diffopt.filter)
rev->always_show_header = 0;
if (DIFF_OPT_TST(&rev->diffopt, FOLLOW_RENAMES)) {
rev->always_show_header = 0;
if (rev->diffopt.nr_paths != 1)
usage("git logs can only follow renames on one pathname at a time");
}
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (!strcmp(arg, "--decorate")) {
if (!decorate)
for_each_ref(add_ref_decoration, NULL);
decorate = 1;
} else
die("unrecognized argument: %s", arg);
}
}
static void write_head_info(void)
{
for_each_ref(show_ref, NULL);
if (capabilities_to_send)
show_ref("capabilities^{}", null_sha1, 0, NULL);
}
static void get_info_refs(char *arg)
{
const char *service_name = get_parameter("service");
struct strbuf buf = STRBUF_INIT;
hdr_nocache();
if (service_name) {
const char *argv[] = {NULL /* service name */,
"--stateless-rpc", "--advertise-refs",
".", NULL};
struct rpc_service *svc = select_service(service_name);
strbuf_addf(&buf, "application/x-git-%s-advertisement",
svc->name);
hdr_str(content_type, buf.buf);
end_headers();
packet_write(1, "# service=git-%s\n", svc->name);
packet_flush(1);
argv[0] = svc->name;
run_service(argv);
} else {
select_getanyfile();
for_each_ref(show_text_ref, &buf);
send_strbuf("text/plain", &buf);
}
strbuf_release(&buf);
}
int gidit_pushobj(FILE *fp, char * signingkey, int sign, unsigned int flags)
{
const char *head;
unsigned char head_sha1[21];
struct gidit_refs_cb_data cbdata;
struct strbuf buf = STRBUF_INIT;
cbdata.buf = &buf;
cbdata.flags = flags;
head = resolve_ref("HEAD", head_sha1, 0, NULL);
head_sha1[20] = '\0';
if (!head) {
strbuf_release(&buf);
return error("Failed to resolve HEAD as a valid ref.");
}
strbuf_add(&buf, sha1_to_hex(head_sha1), 40);
strbuf_addstr(&buf, " HEAD\n");
for_each_ref(resolve_one_ref, &cbdata);
if (sign)
do_sign(&buf, signingkey);
if (fwrite(buf.buf, buf.len, 1, fp) != 1) {
strbuf_release(&buf);
return error("Error while writing pushobj");
}
strbuf_release(&buf);
return 0;
}
void load_ref_decorations(int flags)
{
static int loaded;
if (!loaded) {
loaded = 1;
for_each_ref(add_ref_decoration, &flags);
}
}
void load_ref_decorations(void)
{
static int loaded;
if (!loaded) {
loaded = 1;
for_each_ref(add_ref_decoration, NULL);
}
}
/*
* Mark recent commits available locally and reachable from a local ref as
* COMPLETE. If args->no_dependents is false, also mark COMPLETE remote refs as
* COMMON_REF (otherwise, we are not planning to participate in negotiation, and
* thus do not need COMMON_REF marks).
*
* The cutoff time for recency is determined by this heuristic: it is the
* earliest commit time of the objects in refs that are commits and that we know
* the commit time of.
*/
static void mark_complete_and_common_ref(struct fetch_negotiator *negotiator,
struct fetch_pack_args *args,
struct ref **refs)
{
struct ref *ref;
int old_save_commit_buffer = save_commit_buffer;
timestamp_t cutoff = 0;
save_commit_buffer = 0;
for (ref = *refs; ref; ref = ref->next) {
struct object *o;
if (!has_object_file_with_flags(&ref->old_oid,
OBJECT_INFO_QUICK))
continue;
o = parse_object(the_repository, &ref->old_oid);
if (!o)
continue;
/* We already have it -- which may mean that we were
* in sync with the other side at some time after
* that (it is OK if we guess wrong here).
*/
if (o->type == OBJ_COMMIT) {
struct commit *commit = (struct commit *)o;
if (!cutoff || cutoff < commit->date)
cutoff = commit->date;
}
}
if (!args->deepen) {
for_each_ref(mark_complete_oid, NULL);
for_each_cached_alternate(NULL, mark_alternate_complete);
commit_list_sort_by_date(&complete);
if (cutoff)
mark_recent_complete_commits(args, cutoff);
}
/*
* Mark all complete remote refs as common refs.
* Don't mark them common yet; the server has to be told so first.
*/
for (ref = *refs; ref; ref = ref->next) {
struct object *o = deref_tag(the_repository,
lookup_object(the_repository,
ref->old_oid.hash),
NULL, 0);
if (!o || o->type != OBJ_COMMIT || !(o->flags & COMPLETE))
continue;
negotiator->known_common(negotiator,
(struct commit *)o);
}
save_commit_buffer = old_save_commit_buffer;
}
void check_for_new_submodule_commits(unsigned char new_sha1[20])
{
if (!initialized_fetch_ref_tips) {
for_each_ref(add_sha1_to_array, &ref_tips_before_fetch);
initialized_fetch_ref_tips = 1;
}
sha1_array_append(&ref_tips_after_fetch, new_sha1);
}
void cgit_clone_info(void)
{
if (!ctx.qry.path || strcmp(ctx.qry.path, "refs"))
return;
ctx.page.mimetype = "text/plain";
ctx.page.filename = "info/refs";
cgit_print_http_headers();
for_each_ref(print_ref_info, NULL);
}
void load_ref_decorations(int flags)
{
static int loaded;
if (!loaded) {
loaded = 1;
for_each_ref(add_ref_decoration, &flags);
head_ref(add_ref_decoration, &flags);
for_each_commit_graft(add_graft_decoration, NULL);
}
}
static struct string_list guess_refs(const char *ref)
{
struct similar_ref_cb ref_cb;
struct string_list similar_refs = STRING_LIST_INIT_NODUP;
ref_cb.base_ref = ref;
ref_cb.similar_refs = &similar_refs;
for_each_ref(append_similar_ref, &ref_cb);
return similar_refs;
}
static void upload_pack(void)
{
if (advertise_refs || !stateless_rpc) {
reset_timeout();
head_ref(send_ref, NULL);
for_each_ref(send_ref, NULL);
packet_flush(1);
} else {
head_ref(mark_our_ref, NULL);
for_each_ref(mark_our_ref, NULL);
}
if (advertise_refs)
return;
receive_needs();
if (want_obj.nr) {
get_common_commits();
create_pack_file();
}
}
void load_ref_decorations(int flags)
{
if (!decoration_loaded) {
decoration_loaded = 1;
decoration_flags = flags;
for_each_ref(add_ref_decoration, NULL);
head_ref(add_ref_decoration, NULL);
for_each_commit_graft(add_graft_decoration, NULL);
}
}
void cgit_clone_info(void)
{
if (!ctx.qry.path || strcmp(ctx.qry.path, "refs")) {
cgit_print_error_page(400, "Bad request", "Bad request");
return;
}
ctx.page.mimetype = "text/plain";
ctx.page.filename = "info/refs";
cgit_print_http_headers();
for_each_ref(print_ref_info, NULL);
}
static void upload_pack(void)
{
reset_timeout();
head_ref(send_ref, NULL);
for_each_ref(send_ref, NULL);
packet_flush(1);
receive_needs();
if (want_obj.nr) {
get_common_commits();
create_pack_file();
}
}
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;
const struct ref *ref;
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;
}
}
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);
rm = alloc_ref(ref_name);
rm->peer_ref = alloc_ref(ref_name);
hashcpy(rm->old_sha1, ref_sha1);
**tail = rm;
*tail = &rm->next;
}
free(ref_name);
}
string_list_clear(&existing_refs, 0);
string_list_clear(&new_refs, 0);
}
static void write_head_info(void)
{
struct sha1_array sa = SHA1_ARRAY_INIT;
for_each_alternate_ref(collect_one_alternate_ref, &sa);
sha1_array_for_each_unique(&sa, show_one_alternate_sha1, NULL);
sha1_array_clear(&sa);
for_each_ref(show_ref_cb, NULL);
if (!sent_capabilities)
show_ref("capabilities^{}", null_sha1);
/* EOF */
packet_flush(1);
}
static void print_ref_list(int kinds, int detached, int verbose, int abbrev, struct commit_list *with_commit)
{
int i;
struct ref_list ref_list;
struct commit *head_commit = lookup_commit_reference_gently(head_sha1, 1);
memset(&ref_list, 0, sizeof(ref_list));
ref_list.kinds = kinds;
ref_list.with_commit = with_commit;
if (merge_filter != NO_FILTER)
init_revisions(&ref_list.revs, NULL);
for_each_ref(append_ref, &ref_list);
if (merge_filter != NO_FILTER) {
struct commit *filter;
filter = lookup_commit_reference_gently(merge_filter_ref, 0);
filter->object.flags |= UNINTERESTING;
add_pending_object(&ref_list.revs,
(struct object *) filter, "");
ref_list.revs.limited = 1;
prepare_revision_walk(&ref_list.revs);
if (verbose)
ref_list.maxwidth = calc_maxwidth(&ref_list);
}
qsort(ref_list.list, ref_list.index, sizeof(struct ref_item), ref_cmp);
detached = (detached && (kinds & REF_LOCAL_BRANCH));
if (detached && head_commit &&
is_descendant_of(head_commit, with_commit)) {
struct ref_item item;
item.name = xstrdup("(no branch)");
item.kind = REF_LOCAL_BRANCH;
item.commit = head_commit;
if (strlen(item.name) > ref_list.maxwidth)
ref_list.maxwidth = strlen(item.name);
print_ref_item(&item, ref_list.maxwidth, verbose, abbrev, 1);
free(item.name);
}
for (i = 0; i < ref_list.index; i++) {
int current = !detached &&
(ref_list.list[i].kind == REF_LOCAL_BRANCH) &&
!strcmp(ref_list.list[i].name, head);
print_ref_item(&ref_list.list[i], ref_list.maxwidth, verbose,
abbrev, current);
}
free_ref_list(&ref_list);
}
static void mark_tips(struct fetch_negotiator *negotiator,
const struct oid_array *negotiation_tips)
{
int i;
if (!negotiation_tips) {
for_each_ref(rev_list_insert_ref_oid, negotiator);
return;
}
for (i = 0; i < negotiation_tips->nr; i++)
rev_list_insert_ref(negotiator, NULL,
&negotiation_tips->oid[i]);
return;
}
int cmd_show_ref(int argc, const char **argv, const char *prefix)
{
if (argc == 2 && !strcmp(argv[1], "-h"))
usage_with_options(show_ref_usage, show_ref_options);
argc = parse_options(argc, argv, prefix, show_ref_options,
show_ref_usage, PARSE_OPT_NO_INTERNAL_HELP);
if (exclude_arg)
return exclude_existing(exclude_existing_arg);
pattern = argv;
if (!*pattern)
pattern = NULL;
if (verify) {
if (!pattern)
die("--verify requires a reference");
while (*pattern) {
unsigned char sha1[20];
if (!prefixcmp(*pattern, "refs/") &&
!read_ref(*pattern, sha1)) {
if (!quiet)
show_one(*pattern, sha1);
}
else if (!quiet)
die("'%s' - not a valid ref", *pattern);
else
return 1;
pattern++;
}
return 0;
}
if (show_head)
head_ref(show_ref, NULL);
for_each_ref(show_ref, NULL);
if (!found_match) {
if (verify && !quiet)
die("No match");
return 1;
}
return 0;
}
int cmd_show_ref(int argc, const char **argv, const char *prefix)
{
git_config(git_default_config, NULL);
argc = parse_options(argc, argv, prefix, show_ref_options,
show_ref_usage, 0);
if (exclude_arg)
return exclude_existing(exclude_existing_arg);
pattern = argv;
if (!*pattern)
pattern = NULL;
if (verify) {
if (!pattern)
die("--verify requires a reference");
while (*pattern) {
struct object_id oid;
if ((starts_with(*pattern, "refs/") || !strcmp(*pattern, "HEAD")) &&
!read_ref(*pattern, &oid)) {
show_one(*pattern, &oid);
}
else if (!quiet)
die("'%s' - not a valid ref", *pattern);
else
return 1;
pattern++;
}
return 0;
}
if (show_head)
head_ref(show_ref, NULL);
for_each_ref(show_ref, NULL);
if (!found_match) {
if (verify && !quiet)
die("No match");
return 1;
}
return 0;
}
static void append_one_rev(const char *av)
{
unsigned char revkey[20];
if (!get_sha1(av, revkey)) {
append_ref(av, revkey, 0);
return;
}
if (strchr(av, '*') || strchr(av, '?') || strchr(av, '[')) {
/* glob style match */
int saved_matches = ref_name_cnt;
match_ref_pattern = av;
match_ref_slash = count_slash(av);
for_each_ref(append_matching_ref, NULL);
if (saved_matches == ref_name_cnt &&
ref_name_cnt < MAX_REVS)
error("no matching refs with %s", av);
if (saved_matches + 1 < ref_name_cnt)
sort_ref_range(saved_matches, ref_name_cnt);
return;
}
die("bad sha1 reference %s", av);
}
/*
* read "^(?:<anything>\s)?<refname>(?:\^\{\})?$" from the standard input,
* and
* (1) strip "^{}" at the end of line if any;
* (2) ignore if match is provided and does not head-match refname;
* (3) warn if refname is not a well-formed refname and skip;
* (4) ignore if refname is a ref that exists in the local repository;
* (5) otherwise output the line.
*/
static int exclude_existing(const char *match)
{
static struct string_list existing_refs = STRING_LIST_INIT_DUP;
char buf[1024];
int matchlen = match ? strlen(match) : 0;
for_each_ref(add_existing, &existing_refs);
while (fgets(buf, sizeof(buf), stdin)) {
char *ref;
int len = strlen(buf);
if (len > 0 && buf[len - 1] == '\n')
buf[--len] = '\0';
if (3 <= len && !strcmp(buf + len - 3, "^{}")) {
len -= 3;
buf[len] = '\0';
}
for (ref = buf + len; buf < ref; ref--)
if (isspace(ref[-1]))
break;
if (match) {
int reflen = buf + len - ref;
if (reflen < matchlen)
continue;
if (strncmp(ref, match, matchlen))
continue;
}
if (check_refname_format(ref, 0)) {
warning("ref '%s' ignored", ref);
continue;
}
if (!string_list_has_string(&existing_refs, ref)) {
printf("%s\n", buf);
}
}
return 0;
}
static void reflog_expiry_prepare(const char *refname,
const struct object_id *oid,
void *cb_data)
{
struct expire_reflog_policy_cb *cb = cb_data;
if (!cb->cmd.expire_unreachable || is_head(refname)) {
cb->tip_commit = NULL;
cb->unreachable_expire_kind = UE_HEAD;
} else {
cb->tip_commit = lookup_commit_reference_gently(the_repository,
oid, 1);
if (!cb->tip_commit)
cb->unreachable_expire_kind = UE_ALWAYS;
else
cb->unreachable_expire_kind = UE_NORMAL;
}
if (cb->cmd.expire_unreachable <= cb->cmd.expire_total)
cb->unreachable_expire_kind = UE_ALWAYS;
cb->mark_list = NULL;
cb->tips = NULL;
if (cb->unreachable_expire_kind != UE_ALWAYS) {
if (cb->unreachable_expire_kind == UE_HEAD) {
struct commit_list *elem;
for_each_ref(push_tip_to_list, &cb->tips);
for (elem = cb->tips; elem; elem = elem->next)
commit_list_insert(elem->item, &cb->mark_list);
} else {
commit_list_insert(cb->tip_commit, &cb->mark_list);
}
cb->mark_limit = cb->cmd.expire_total;
mark_reachable(cb);
}
}
/*
* We are about to leave commit that was at the tip of a detached
* HEAD. If it is not reachable from any ref, this is the last chance
* for the user to do so without resorting to reflog.
*/
static void orphaned_commit_warning(struct commit *old_commit, struct commit *new_commit)
{
struct rev_info revs;
struct object *object = &old_commit->object;
repo_init_revisions(the_repository, &revs, NULL);
setup_revisions(0, NULL, &revs, NULL);
object->flags &= ~UNINTERESTING;
add_pending_object(&revs, object, oid_to_hex(&object->oid));
for_each_ref(add_pending_uninteresting_ref, &revs);
add_pending_oid(&revs, "HEAD", &new_commit->object.oid, UNINTERESTING);
if (prepare_revision_walk(&revs))
die(_("internal error in revision walk"));
if (!(old_commit->object.flags & UNINTERESTING))
suggest_reattach(old_commit, &revs);
else
describe_detached_head(_("Previous HEAD position was"), old_commit);
/* Clean up objects used, as they will be reused. */
clear_commit_marks_all(ALL_REV_FLAGS);
}
