static int register_ref(const char *refname, const unsigned char *sha1,
int flags, void *cb_data)
{
if (!strcmp(refname, "bad")) {
current_bad_sha1 = sha1;
} else if (!prefixcmp(refname, "good-")) {
sha1_array_append(&good_revs, sha1);
} else if (!prefixcmp(refname, "skip-")) {
sha1_array_append(&skipped_revs, sha1);
}
return 0;
}
static int register_ref(const char *refname, const unsigned char *sha1,
int flags, void *cb_data)
{
if (!strcmp(refname, "bad")) {
current_bad_oid = xmalloc(sizeof(*current_bad_oid));
hashcpy(current_bad_oid->hash, sha1);
} else if (starts_with(refname, "good-")) {
sha1_array_append(&good_revs, sha1);
} else if (starts_with(refname, "skip-")) {
sha1_array_append(&skipped_revs, sha1);
}
return 0;
}
int main(int argc, char **argv)
{
struct sha1_array array = SHA1_ARRAY_INIT;
struct strbuf line = STRBUF_INIT;
while (strbuf_getline_lf(&line, stdin) != EOF) {
const char *arg;
unsigned char sha1[20];
if (skip_prefix(line.buf, "append ", &arg)) {
if (get_sha1_hex(arg, sha1))
die("not a hexadecimal SHA1: %s", arg);
sha1_array_append(&array, sha1);
} else if (skip_prefix(line.buf, "lookup ", &arg)) {
if (get_sha1_hex(arg, sha1))
die("not a hexadecimal SHA1: %s", arg);
printf("%d\n", sha1_array_lookup(&array, sha1));
} else if (!strcmp(line.buf, "clear"))
sha1_array_clear(&array);
else if (!strcmp(line.buf, "for_each_unique"))
sha1_array_for_each_unique(&array, print_sha1, NULL);
else
die("unknown command: %s", line.buf);
}
return 0;
}
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);
}
static int register_ref(const char *refname, const struct object_id *oid,
int flags, void *cb_data)
{
struct strbuf good_prefix = STRBUF_INIT;
strbuf_addstr(&good_prefix, term_good);
strbuf_addstr(&good_prefix, "-");
if (!strcmp(refname, term_bad)) {
current_bad_oid = xmalloc(sizeof(*current_bad_oid));
oidcpy(current_bad_oid, oid);
} else if (starts_with(refname, good_prefix.buf)) {
sha1_array_append(&good_revs, oid->hash);
} else if (starts_with(refname, "skip-")) {
sha1_array_append(&skipped_revs, oid->hash);
}
strbuf_release(&good_prefix);
return 0;
}
static struct command *read_head_info(struct sha1_array *shallow)
{
struct command *commands = NULL;
struct command **p = &commands;
for (;;) {
char *line;
unsigned char old_sha1[20], new_sha1[20];
struct command *cmd;
char *refname;
int len, reflen;
line = packet_read_line(0, &len);
if (!line)
break;
if (len == 48 && starts_with(line, "shallow ")) {
if (get_sha1_hex(line + 8, old_sha1))
die("protocol error: expected shallow sha, got '%s'", line + 8);
sha1_array_append(shallow, old_sha1);
continue;
}
if (len < 83 ||
line[40] != ' ' ||
line[81] != ' ' ||
get_sha1_hex(line, old_sha1) ||
get_sha1_hex(line + 41, new_sha1))
die("protocol error: expected old/new/ref, got '%s'",
line);
refname = line + 82;
reflen = strlen(refname);
if (reflen + 82 < len) {
const char *feature_list = refname + reflen + 1;
if (parse_feature_request(feature_list, "report-status"))
report_status = 1;
if (parse_feature_request(feature_list, "side-band-64k"))
use_sideband = LARGE_PACKET_MAX;
if (parse_feature_request(feature_list, "quiet"))
quiet = 1;
}
cmd = xcalloc(1, sizeof(struct command) + len - 80);
hashcpy(cmd->old_sha1, old_sha1);
hashcpy(cmd->new_sha1, new_sha1);
memcpy(cmd->ref_name, line + 82, len - 81);
*p = cmd;
p = &cmd->next;
}
return commands;
}
int parse_opt_object_name(const struct option *opt, const char *arg, int unset)
{
unsigned char sha1[20];
if (unset) {
sha1_array_clear(opt->value);
return 0;
}
if (!arg)
return -1;
if (get_sha1(arg, sha1))
return error(_("malformed object name '%s'"), arg);
sha1_array_append(opt->value, sha1);
return 0;
}
/**
* Appends merge candidates from FETCH_HEAD that are not marked not-for-merge
* into merge_heads.
*/
static void get_merge_heads(struct sha1_array *merge_heads)
{
const char *filename = git_path("FETCH_HEAD");
FILE *fp;
struct strbuf sb = STRBUF_INIT;
unsigned char sha1[GIT_SHA1_RAWSZ];
if (!(fp = fopen(filename, "r")))
die_errno(_("could not open '%s' for reading"), filename);
while (strbuf_getline_lf(&sb, fp) != EOF) {
if (get_sha1_hex(sb.buf, sha1))
continue; /* invalid line: does not start with SHA1 */
if (starts_with(sb.buf + GIT_SHA1_HEXSZ, "\tnot-for-merge\t"))
continue; /* ref is not-for-merge */
sha1_array_append(merge_heads, sha1);
}
fclose(fp);
strbuf_release(&sb);
}
static int builtin_diff_combined(struct rev_info *revs,
int argc, const char **argv,
struct object_array_entry *ent,
int ents)
{
struct sha1_array parents = SHA1_ARRAY_INIT;
int i;
if (argc > 1)
usage(builtin_diff_usage);
if (!revs->dense_combined_merges && !revs->combine_merges)
revs->dense_combined_merges = revs->combine_merges = 1;
for (i = 1; i < ents; i++)
sha1_array_append(&parents, ent[i].item->sha1);
diff_tree_combined(ent[0].item->sha1, &parents,
revs->dense_combined_merges, revs);
sha1_array_clear(&parents);
return 0;
}
static void update_shallow_info(struct command *commands,
struct shallow_info *si,
struct sha1_array *ref)
{
struct command *cmd;
int *ref_status;
remove_nonexistent_theirs_shallow(si);
if (!si->nr_ours && !si->nr_theirs) {
shallow_update = 0;
return;
}
for (cmd = commands; cmd; cmd = cmd->next) {
if (is_null_sha1(cmd->new_sha1))
continue;
sha1_array_append(ref, cmd->new_sha1);
cmd->index = ref->nr - 1;
}
si->ref = ref;
if (shallow_update) {
prepare_shallow_update(commands, si);
return;
}
ALLOC_ARRAY(ref_status, ref->nr);
assign_shallow_commits_to_refs(si, NULL, ref_status);
for (cmd = commands; cmd; cmd = cmd->next) {
if (is_null_sha1(cmd->new_sha1))
continue;
if (ref_status[cmd->index]) {
cmd->error_string = "shallow update not allowed";
cmd->skip_update = 1;
}
}
free(ref_status);
}
static int update_shallow_ref(struct command *cmd, struct shallow_info *si)
{
static struct lock_file shallow_lock;
struct sha1_array extra = SHA1_ARRAY_INIT;
const char *alt_file;
uint32_t mask = 1 << (cmd->index % 32);
int i;
trace_printf_key(&trace_shallow,
"shallow: update_shallow_ref %s\n", cmd->ref_name);
for (i = 0; i < si->shallow->nr; i++)
if (si->used_shallow[i] &&
(si->used_shallow[i][cmd->index / 32] & mask) &&
!delayed_reachability_test(si, i))
sha1_array_append(&extra, si->shallow->sha1[i]);
setup_alternate_shallow(&shallow_lock, &alt_file, &extra);
if (check_shallow_connected(command_singleton_iterator,
0, cmd, alt_file)) {
rollback_lock_file(&shallow_lock);
sha1_array_clear(&extra);
return -1;
}
commit_lock_file(&shallow_lock);
/*
* Make sure setup_alternate_shallow() for the next ref does
* not lose these new roots..
*/
for (i = 0; i < extra.nr; i++)
register_shallow(extra.sha1[i]);
si->shallow_ref[cmd->index] = 0;
sha1_array_clear(&extra);
return 0;
}
static void init_skiplist(struct fsck_options *options, const char *path)
{
static struct sha1_array skiplist = SHA1_ARRAY_INIT;
int sorted, fd;
char buffer[41];
unsigned char sha1[20];
if (options->skiplist)
sorted = options->skiplist->sorted;
else {
sorted = 1;
options->skiplist = &skiplist;
}
fd = open(path, O_RDONLY);
if (fd < 0)
die("Could not open skip list: %s", path);
for (;;) {
int result = read_in_full(fd, buffer, sizeof(buffer));
if (result < 0)
die_errno("Could not read '%s'", path);
if (!result)
break;
if (get_sha1_hex(buffer, sha1) || buffer[40] != '\n')
die("Invalid SHA-1: %s", buffer);
sha1_array_append(&skiplist, sha1);
if (sorted && skiplist.nr > 1 &&
hashcmp(skiplist.sha1[skiplist.nr - 2],
sha1) > 0)
sorted = 0;
}
close(fd);
if (sorted)
skiplist.sorted = 1;
}
static int add_sha1_to_array(const char *ref, const unsigned char *sha1,
int flags, void *data)
{
sha1_array_append(data, sha1);
return 0;
}
static int add_sha1_to_array(const char *ref, const struct object_id *oid,
int flags, void *data)
{
sha1_array_append(data, oid->hash);
return 0;
}
int transport_push(struct transport *transport,
int refspec_nr, const char **refspec, int flags,
unsigned int *reject_reasons)
{
*reject_reasons = 0;
transport_verify_remote_names(refspec_nr, refspec);
if (transport->push) {
/* Maybe FIXME. But no important transport uses this case. */
if (flags & TRANSPORT_PUSH_SET_UPSTREAM)
die("This transport does not support using --set-upstream");
return transport->push(transport, refspec_nr, refspec, flags);
} else if (transport->push_refs) {
struct ref *remote_refs;
struct ref *local_refs = get_local_heads();
int match_flags = MATCH_REFS_NONE;
int verbose = (transport->verbose > 0);
int quiet = (transport->verbose < 0);
int porcelain = flags & TRANSPORT_PUSH_PORCELAIN;
int pretend = flags & TRANSPORT_PUSH_DRY_RUN;
int push_ret, ret, err;
if (check_push_refs(local_refs, refspec_nr, refspec) < 0)
return -1;
remote_refs = transport->get_refs_list(transport, 1);
if (flags & TRANSPORT_PUSH_ALL)
match_flags |= MATCH_REFS_ALL;
if (flags & TRANSPORT_PUSH_MIRROR)
match_flags |= MATCH_REFS_MIRROR;
if (flags & TRANSPORT_PUSH_PRUNE)
match_flags |= MATCH_REFS_PRUNE;
if (flags & TRANSPORT_PUSH_FOLLOW_TAGS)
match_flags |= MATCH_REFS_FOLLOW_TAGS;
if (match_push_refs(local_refs, &remote_refs,
refspec_nr, refspec, match_flags)) {
return -1;
}
if (transport->smart_options &&
transport->smart_options->cas &&
!is_empty_cas(transport->smart_options->cas))
apply_push_cas(transport->smart_options->cas,
transport->remote, remote_refs);
set_ref_status_for_push(remote_refs,
flags & TRANSPORT_PUSH_MIRROR,
flags & TRANSPORT_PUSH_FORCE);
if (!(flags & TRANSPORT_PUSH_NO_HOOK))
if (run_pre_push_hook(transport, remote_refs))
return -1;
if ((flags & (TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND |
TRANSPORT_RECURSE_SUBMODULES_ONLY)) &&
!is_bare_repository()) {
struct ref *ref = remote_refs;
struct sha1_array commits = SHA1_ARRAY_INIT;
for (; ref; ref = ref->next)
if (!is_null_oid(&ref->new_oid))
sha1_array_append(&commits, ref->new_oid.hash);
if (!push_unpushed_submodules(&commits,
transport->remote->name,
pretend)) {
sha1_array_clear(&commits);
die("Failed to push all needed submodules!");
}
sha1_array_clear(&commits);
}
if (((flags & TRANSPORT_RECURSE_SUBMODULES_CHECK) ||
((flags & (TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND |
TRANSPORT_RECURSE_SUBMODULES_ONLY)) &&
!pretend)) && !is_bare_repository()) {
struct ref *ref = remote_refs;
struct string_list needs_pushing = STRING_LIST_INIT_DUP;
struct sha1_array commits = SHA1_ARRAY_INIT;
for (; ref; ref = ref->next)
if (!is_null_oid(&ref->new_oid))
sha1_array_append(&commits, ref->new_oid.hash);
if (find_unpushed_submodules(&commits, transport->remote->name,
&needs_pushing)) {
sha1_array_clear(&commits);
die_with_unpushed_submodules(&needs_pushing);
}
string_list_clear(&needs_pushing, 0);
sha1_array_clear(&commits);
}
if (!(flags & TRANSPORT_RECURSE_SUBMODULES_ONLY))
push_ret = transport->push_refs(transport, remote_refs, flags);
else
push_ret = 0;
err = push_had_errors(remote_refs);
ret = push_ret | err;
if (!quiet || err)
transport_print_push_status(transport->url, remote_refs,
verbose | porcelain, porcelain,
reject_reasons);
if (flags & TRANSPORT_PUSH_SET_UPSTREAM)
set_upstreams(transport, remote_refs, pretend);
if (!(flags & (TRANSPORT_PUSH_DRY_RUN |
TRANSPORT_RECURSE_SUBMODULES_ONLY))) {
struct ref *ref;
for (ref = remote_refs; ref; ref = ref->next)
transport_update_tracking_ref(transport->remote, ref, verbose);
}
if (porcelain && !push_ret)
puts("Done");
else if (!quiet && !ret && !transport_refs_pushed(remote_refs))
fprintf(stderr, "Everything up-to-date\n");
return ret;
}
return 1;
}
static struct command *read_head_info(struct sha1_array *shallow)
{
struct command *commands = NULL;
struct command **p = &commands;
for (;;) {
char *line;
int len, linelen;
line = packet_read_line(0, &len);
if (!line)
break;
if (len == 48 && starts_with(line, "shallow ")) {
unsigned char sha1[20];
if (get_sha1_hex(line + 8, sha1))
die("protocol error: expected shallow sha, got '%s'",
line + 8);
sha1_array_append(shallow, sha1);
continue;
}
linelen = strlen(line);
if (linelen < len) {
const char *feature_list = line + linelen + 1;
if (parse_feature_request(feature_list, "report-status"))
report_status = 1;
if (parse_feature_request(feature_list, "side-band-64k"))
use_sideband = LARGE_PACKET_MAX;
if (parse_feature_request(feature_list, "quiet"))
quiet = 1;
if (advertise_atomic_push
&& parse_feature_request(feature_list, "atomic"))
use_atomic = 1;
if (advertise_push_options
&& parse_feature_request(feature_list, "push-options"))
use_push_options = 1;
}
if (!strcmp(line, "push-cert")) {
int true_flush = 0;
char certbuf[1024];
for (;;) {
len = packet_read(0, NULL, NULL,
certbuf, sizeof(certbuf), 0);
if (!len) {
true_flush = 1;
break;
}
if (!strcmp(certbuf, "push-cert-end\n"))
break; /* end of cert */
strbuf_addstr(&push_cert, certbuf);
}
if (true_flush)
break;
continue;
}
p = queue_command(p, line, linelen);
}
if (push_cert.len)
queue_commands_from_cert(p, &push_cert);
return commands;
}
static void update_shallow(struct fetch_pack_args *args,
struct ref **sought, int nr_sought,
struct shallow_info *si)
{
struct sha1_array ref = SHA1_ARRAY_INIT;
int *status;
int i;
if (args->depth > 0 && alternate_shallow_file) {
if (*alternate_shallow_file == '\0') { /* --unshallow */
unlink_or_warn(git_path("shallow"));
rollback_lock_file(&shallow_lock);
} else
commit_lock_file(&shallow_lock);
return;
}
if (!si->shallow || !si->shallow->nr)
return;
if (args->cloning) {
/*
* remote is shallow, but this is a clone, there are
* no objects in repo to worry about. Accept any
* shallow points that exist in the pack (iow in repo
* after get_pack() and reprepare_packed_git())
*/
struct sha1_array extra = SHA1_ARRAY_INIT;
unsigned char (*sha1)[20] = si->shallow->sha1;
for (i = 0; i < si->shallow->nr; i++)
if (has_sha1_file(sha1[i]))
sha1_array_append(&extra, sha1[i]);
if (extra.nr) {
setup_alternate_shallow(&shallow_lock,
&alternate_shallow_file,
&extra);
commit_lock_file(&shallow_lock);
}
sha1_array_clear(&extra);
return;
}
if (!si->nr_ours && !si->nr_theirs)
return;
remove_nonexistent_theirs_shallow(si);
if (!si->nr_ours && !si->nr_theirs)
return;
for (i = 0; i < nr_sought; i++)
sha1_array_append(&ref, sought[i]->old_sha1);
si->ref = &ref;
if (args->update_shallow) {
/*
* remote is also shallow, .git/shallow may be updated
* so all refs can be accepted. Make sure we only add
* shallow roots that are actually reachable from new
* refs.
*/
struct sha1_array extra = SHA1_ARRAY_INIT;
unsigned char (*sha1)[20] = si->shallow->sha1;
assign_shallow_commits_to_refs(si, NULL, NULL);
if (!si->nr_ours && !si->nr_theirs) {
sha1_array_clear(&ref);
return;
}
for (i = 0; i < si->nr_ours; i++)
sha1_array_append(&extra, sha1[si->ours[i]]);
for (i = 0; i < si->nr_theirs; i++)
sha1_array_append(&extra, sha1[si->theirs[i]]);
setup_alternate_shallow(&shallow_lock,
&alternate_shallow_file,
&extra);
commit_lock_file(&shallow_lock);
sha1_array_clear(&extra);
sha1_array_clear(&ref);
return;
}
/*
* remote is also shallow, check what ref is safe to update
* without updating .git/shallow
*/
status = xcalloc(nr_sought, sizeof(*status));
assign_shallow_commits_to_refs(si, NULL, status);
if (si->nr_ours || si->nr_theirs) {
for (i = 0; i < nr_sought; i++)
if (status[i])
sought[i]->status = REF_STATUS_REJECT_SHALLOW;
}
free(status);
sha1_array_clear(&ref);
}
static void collect_one_alternate_ref(const struct ref *ref, void *data)
{
struct sha1_array *sa = data;
sha1_array_append(sa, ref->old_sha1);
}