#include "sigchain.h"
#include "fsck.h"
#include "tmp-objdir.h"
+#include "oidset.h"
static const char * const receive_pack_usage[] = {
N_("git receive-pack <git-dir>"),
return git_default_config(var, value, cb);
}
-static void show_ref(const char *path, const unsigned char *sha1)
+static void show_ref(const char *path, const struct object_id *oid)
{
if (sent_capabilities) {
- packet_write_fmt(1, "%s %s\n", sha1_to_hex(sha1), path);
+ packet_write_fmt(1, "%s %s\n", oid_to_hex(oid), path);
} else {
struct strbuf cap = STRBUF_INIT;
strbuf_addstr(&cap, " push-options");
strbuf_addf(&cap, " agent=%s", git_user_agent_sanitized());
packet_write_fmt(1, "%s %s%c%s\n",
- sha1_to_hex(sha1), path, 0, cap.buf);
+ oid_to_hex(oid), path, 0, cap.buf);
strbuf_release(&cap);
sent_capabilities = 1;
}
}
static int show_ref_cb(const char *path_full, const struct object_id *oid,
- int flag, void *unused)
+ int flag, void *data)
{
+ struct oidset *seen = data;
const char *path = strip_namespace(path_full);
if (ref_is_hidden(path, path_full))
/*
* Advertise refs outside our current namespace as ".have"
* refs, so that the client can use them to minimize data
- * transfer but will otherwise ignore them. This happens to
- * cover ".have" that are thrown in by add_one_alternate_ref()
- * to mark histories that are complete in our alternates as
- * well.
+ * transfer but will otherwise ignore them.
*/
- if (!path)
+ if (!path) {
+ if (oidset_insert(seen, oid))
+ return 0;
path = ".have";
- show_ref(path, oid->hash);
+ } else {
+ oidset_insert(seen, oid);
+ }
+ show_ref(path, oid);
return 0;
}
-static int show_one_alternate_sha1(const unsigned char sha1[20], void *unused)
+static void show_one_alternate_ref(const char *refname,
+ const struct object_id *oid,
+ void *data)
{
- show_ref(".have", sha1);
- return 0;
-}
+ struct oidset *seen = data;
-static void collect_one_alternate_ref(const struct ref *ref, void *data)
-{
- struct sha1_array *sa = data;
- sha1_array_append(sa, ref->old_oid.hash);
+ if (oidset_insert(seen, oid))
+ return;
+
+ show_ref(".have", oid);
}
static void write_head_info(void)
{
- struct sha1_array sa = SHA1_ARRAY_INIT;
+ static struct oidset seen = OIDSET_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);
+ for_each_ref(show_ref_cb, &seen);
+ for_each_alternate_ref(show_one_alternate_ref, &seen);
+ oidset_clear(&seen);
if (!sent_capabilities)
- show_ref("capabilities^{}", null_sha1);
+ show_ref("capabilities^{}", &null_oid);
advertise_shallow_grafts(1);
unsigned int skip_update:1,
did_not_exist:1;
int index;
- unsigned char old_sha1[20];
- unsigned char new_sha1[20];
+ struct object_id old_oid;
+ struct object_id new_oid;
char ref_name[FLEX_ARRAY]; /* more */
};
* after dropping "_commit" from its name and possibly moving it out
* of commit.c
*/
-static char *find_header(const char *msg, size_t len, const char *key)
+static char *find_header(const char *msg, size_t len, const char *key,
+ const char **next_line)
{
int key_len = strlen(key);
const char *line = msg;
if (line + key_len < eol &&
!memcmp(line, key, key_len) && line[key_len] == ' ') {
int offset = key_len + 1;
+ if (next_line)
+ *next_line = *eol ? eol + 1 : eol;
return xmemdupz(line + offset, (eol - line) - offset);
}
line = *eol ? eol + 1 : NULL;
static const char *check_nonce(const char *buf, size_t len)
{
- char *nonce = find_header(buf, len, "nonce");
+ char *nonce = find_header(buf, len, "nonce", NULL);
unsigned long stamp, ostamp;
char *bohmac, *expect = NULL;
const char *retval = NONCE_BAD;
return retval;
}
+/*
+ * Return 1 if there is no push_cert or if the push options in push_cert are
+ * the same as those in the argument; 0 otherwise.
+ */
+static int check_cert_push_options(const struct string_list *push_options)
+{
+ const char *buf = push_cert.buf;
+ int len = push_cert.len;
+
+ char *option;
+ const char *next_line;
+ int options_seen = 0;
+
+ int retval = 1;
+
+ if (!len)
+ return 1;
+
+ while ((option = find_header(buf, len, "push-option", &next_line))) {
+ len -= (next_line - buf);
+ buf = next_line;
+ options_seen++;
+ if (options_seen > push_options->nr
+ || strcmp(option,
+ push_options->items[options_seen - 1].string)) {
+ retval = 0;
+ goto leave;
+ }
+ free(option);
+ }
+
+ if (options_seen != push_options->nr)
+ retval = 0;
+
+leave:
+ free(option);
+ return retval;
+}
+
static void prepare_push_cert_sha1(struct child_process *proc)
{
static int already_done;
return -1; /* EOF */
strbuf_reset(&state->buf);
strbuf_addf(&state->buf, "%s %s %s\n",
- sha1_to_hex(cmd->old_sha1), sha1_to_hex(cmd->new_sha1),
+ oid_to_hex(&cmd->old_oid), oid_to_hex(&cmd->new_oid),
cmd->ref_name);
state->cmd = cmd->next;
if (bufp) {
return 0;
argv[1] = cmd->ref_name;
- argv[2] = sha1_to_hex(cmd->old_sha1);
- argv[3] = sha1_to_hex(cmd->new_sha1);
+ argv[2] = oid_to_hex(&cmd->old_oid);
+ argv[3] = oid_to_hex(&cmd->new_oid);
argv[4] = NULL;
proc.no_stdin = 1;
proc.stdout_to_stderr = 1;
proc.err = use_sideband ? -1 : 0;
proc.argv = argv;
- proc.env = tmp_objdir_env(tmp_objdir);
code = start_command(&proc);
if (code)
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;
+ struct oid_array extra = OID_ARRAY_INIT;
struct check_connected_options opt = CHECK_CONNECTED_INIT;
uint32_t mask = 1 << (cmd->index % 32);
int 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]);
+ oid_array_append(&extra, &si->shallow->oid[i]);
opt.env = tmp_objdir_env(tmp_objdir);
setup_alternate_shallow(&shallow_lock, &opt.shallow_file, &extra);
if (check_connected(command_singleton_iterator, cmd, &opt)) {
rollback_lock_file(&shallow_lock);
- sha1_array_clear(&extra);
+ oid_array_clear(&extra);
return -1;
}
* not lose these new roots..
*/
for (i = 0; i < extra.nr; i++)
- register_shallow(extra.sha1[i]);
+ register_shallow(extra.oid[i].hash);
si->shallow_ref[cmd->index] = 0;
- sha1_array_clear(&extra);
+ oid_array_clear(&extra);
return 0;
}
{
const char *name = cmd->ref_name;
struct strbuf namespaced_name_buf = STRBUF_INIT;
- const char *namespaced_name, *ret;
- unsigned char *old_sha1 = cmd->old_sha1;
- unsigned char *new_sha1 = cmd->new_sha1;
+ static char *namespaced_name;
+ const char *ret;
+ struct object_id *old_oid = &cmd->old_oid;
+ struct object_id *new_oid = &cmd->new_oid;
/* only refs/... are allowed */
if (!starts_with(name, "refs/") || check_refname_format(name + 5, 0)) {
}
strbuf_addf(&namespaced_name_buf, "%s%s", get_git_namespace(), name);
+ free(namespaced_name);
namespaced_name = strbuf_detach(&namespaced_name_buf, NULL);
if (is_ref_checked_out(namespaced_name)) {
refuse_unconfigured_deny();
return "branch is currently checked out";
case DENY_UPDATE_INSTEAD:
- ret = update_worktree(new_sha1);
+ ret = update_worktree(new_oid->hash);
if (ret)
return ret;
break;
}
}
- if (!is_null_sha1(new_sha1) && !has_sha1_file(new_sha1)) {
+ if (!is_null_oid(new_oid) && !has_object_file(new_oid)) {
error("unpack should have generated %s, "
- "but I can't find it!", sha1_to_hex(new_sha1));
+ "but I can't find it!", oid_to_hex(new_oid));
return "bad pack";
}
- if (!is_null_sha1(old_sha1) && is_null_sha1(new_sha1)) {
+ if (!is_null_oid(old_oid) && is_null_oid(new_oid)) {
if (deny_deletes && starts_with(name, "refs/heads/")) {
rp_error("denying ref deletion for %s", name);
return "deletion prohibited";
}
}
- if (deny_non_fast_forwards && !is_null_sha1(new_sha1) &&
- !is_null_sha1(old_sha1) &&
+ if (deny_non_fast_forwards && !is_null_oid(new_oid) &&
+ !is_null_oid(old_oid) &&
starts_with(name, "refs/heads/")) {
struct object *old_object, *new_object;
struct commit *old_commit, *new_commit;
- old_object = parse_object(old_sha1);
- new_object = parse_object(new_sha1);
+ old_object = parse_object(old_oid->hash);
+ new_object = parse_object(new_oid->hash);
if (!old_object || !new_object ||
old_object->type != OBJ_COMMIT ||
return "hook declined";
}
- if (is_null_sha1(new_sha1)) {
+ if (is_null_oid(new_oid)) {
struct strbuf err = STRBUF_INIT;
- if (!parse_object(old_sha1)) {
- old_sha1 = NULL;
+ if (!parse_object(old_oid->hash)) {
+ old_oid = NULL;
if (ref_exists(name)) {
rp_warning("Allowing deletion of corrupt ref.");
} else {
}
if (ref_transaction_delete(transaction,
namespaced_name,
- old_sha1,
+ old_oid->hash,
0, "push", &err)) {
rp_error("%s", err.buf);
strbuf_release(&err);
if (ref_transaction_update(transaction,
namespaced_name,
- new_sha1, old_sha1,
+ new_oid->hash, old_oid->hash,
0, "push",
&err)) {
rp_error("%s", err.buf);
const char *dst_name;
struct string_list_item *item;
struct command *dst_cmd;
- unsigned char sha1[GIT_SHA1_RAWSZ];
+ unsigned char sha1[GIT_MAX_RAWSZ];
int flag;
strbuf_addf(&buf, "%s%s", get_git_namespace(), cmd->ref_name);
dst_cmd = (struct command *) item->util;
- if (!hashcmp(cmd->old_sha1, dst_cmd->old_sha1) &&
- !hashcmp(cmd->new_sha1, dst_cmd->new_sha1))
+ if (!oidcmp(&cmd->old_oid, &dst_cmd->old_oid) &&
+ !oidcmp(&cmd->new_oid, &dst_cmd->new_oid))
return;
dst_cmd->skip_update = 1;
rp_error("refusing inconsistent update between symref '%s' (%s..%s) and"
" its target '%s' (%s..%s)",
cmd->ref_name,
- find_unique_abbrev(cmd->old_sha1, DEFAULT_ABBREV),
- find_unique_abbrev(cmd->new_sha1, DEFAULT_ABBREV),
+ find_unique_abbrev(cmd->old_oid.hash, DEFAULT_ABBREV),
+ find_unique_abbrev(cmd->new_oid.hash, DEFAULT_ABBREV),
dst_cmd->ref_name,
- find_unique_abbrev(dst_cmd->old_sha1, DEFAULT_ABBREV),
- find_unique_abbrev(dst_cmd->new_sha1, DEFAULT_ABBREV));
+ find_unique_abbrev(dst_cmd->old_oid.hash, DEFAULT_ABBREV),
+ find_unique_abbrev(dst_cmd->new_oid.hash, DEFAULT_ABBREV));
cmd->error_string = dst_cmd->error_string =
"inconsistent aliased update";
struct command **cmd_list = cb_data;
struct command *cmd = *cmd_list;
- if (!cmd || is_null_sha1(cmd->new_sha1))
+ if (!cmd || is_null_oid(&cmd->new_oid))
return -1; /* end of list */
*cmd_list = NULL; /* this returns only one */
- hashcpy(sha1, cmd->new_sha1);
+ hashcpy(sha1, cmd->new_oid.hash);
return 0;
}
if (shallow_update && data->si->shallow_ref[cmd->index])
/* to be checked in update_shallow_ref() */
continue;
- if (!is_null_sha1(cmd->new_sha1) && !cmd->skip_update) {
- hashcpy(sha1, cmd->new_sha1);
+ if (!is_null_oid(&cmd->new_oid) && !cmd->skip_update) {
+ hashcpy(sha1, cmd->new_oid.hash);
*cmd_list = cmd->next;
return 0;
}
if (!ref_is_hidden(cmd->ref_name, refname_full.buf))
continue;
- if (is_null_sha1(cmd->new_sha1))
+ if (is_null_oid(&cmd->new_oid))
cmd->error_string = "deny deleting a hidden ref";
else
cmd->error_string = "deny updating a hidden ref";
{
struct check_connected_options opt = CHECK_CONNECTED_INIT;
struct command *cmd;
- unsigned char sha1[20];
+ struct object_id oid;
struct iterate_data data;
struct async muxer;
int err_fd = 0;
check_aliased_updates(commands);
free(head_name_to_free);
- head_name = head_name_to_free = resolve_refdup("HEAD", 0, sha1, NULL);
+ head_name = head_name_to_free = resolve_refdup("HEAD", 0, oid.hash, NULL);
if (use_atomic)
execute_commands_atomic(commands, si);
const char *line,
int linelen)
{
- unsigned char old_sha1[20], new_sha1[20];
+ struct object_id old_oid, new_oid;
struct command *cmd;
const char *refname;
int reflen;
+ const char *p;
- if (linelen < 83 ||
- line[40] != ' ' ||
- line[81] != ' ' ||
- get_sha1_hex(line, old_sha1) ||
- get_sha1_hex(line + 41, new_sha1))
+ if (parse_oid_hex(line, &old_oid, &p) ||
+ *p++ != ' ' ||
+ parse_oid_hex(p, &new_oid, &p) ||
+ *p++ != ' ')
die("protocol error: expected old/new/ref, got '%s'", line);
- refname = line + 82;
- reflen = linelen - 82;
+ refname = p;
+ reflen = linelen - (p - line);
FLEX_ALLOC_MEM(cmd, ref_name, refname, reflen);
- hashcpy(cmd->old_sha1, old_sha1);
- hashcpy(cmd->new_sha1, new_sha1);
+ oidcpy(&cmd->old_oid, &old_oid);
+ oidcpy(&cmd->new_oid, &new_oid);
*tail = cmd;
return &cmd->next;
}
while (boc < eoc) {
const char *eol = memchr(boc, '\n', eoc - boc);
- tail = queue_command(tail, boc, eol ? eol - boc : eoc - eol);
+ tail = queue_command(tail, boc, eol ? eol - boc : eoc - boc);
boc = eol ? eol + 1 : eoc;
}
}
-static struct command *read_head_info(struct sha1_array *shallow)
+static struct command *read_head_info(struct oid_array *shallow)
{
struct command *commands = NULL;
struct command **p = &commands;
if (!line)
break;
- if (len == 48 && starts_with(line, "shallow ")) {
- unsigned char sha1[20];
- if (get_sha1_hex(line + 8, sha1))
+ if (len > 8 && starts_with(line, "shallow ")) {
+ struct object_id oid;
+ if (get_oid_hex(line + 8, &oid))
die("protocol error: expected shallow sha, got '%s'",
line + 8);
- sha1_array_append(shallow, sha1);
+ oid_array_append(shallow, &oid);
continue;
}
static const char *pack_lockfile;
+static void push_header_arg(struct argv_array *args, struct pack_header *hdr)
+{
+ argv_array_pushf(args, "--pack_header=%"PRIu32",%"PRIu32,
+ ntohl(hdr->hdr_version), ntohl(hdr->hdr_entries));
+}
+
static const char *unpack(int err_fd, struct shallow_info *si)
{
struct pack_header hdr;
const char *hdr_err;
int status;
- char hdr_arg[38];
struct child_process child = CHILD_PROCESS_INIT;
int fsck_objects = (receive_fsck_objects >= 0
? receive_fsck_objects
close(err_fd);
return hdr_err;
}
- snprintf(hdr_arg, sizeof(hdr_arg),
- "--pack_header=%"PRIu32",%"PRIu32,
- ntohl(hdr.hdr_version), ntohl(hdr.hdr_entries));
if (si->nr_ours || si->nr_theirs) {
alt_shallow_file = setup_temporary_shallow(si->shallow);
tmp_objdir_add_as_alternate(tmp_objdir);
if (ntohl(hdr.hdr_entries) < unpack_limit) {
- argv_array_pushl(&child.args, "unpack-objects", hdr_arg, NULL);
+ argv_array_push(&child.args, "unpack-objects");
+ push_header_arg(&child.args, &hdr);
if (quiet)
argv_array_push(&child.args, "-q");
if (fsck_objects)
if (status)
return "unpack-objects abnormal exit";
} else {
- char hostname[256];
+ char hostname[HOST_NAME_MAX + 1];
- argv_array_pushl(&child.args, "index-pack",
- "--stdin", hdr_arg, NULL);
+ argv_array_pushl(&child.args, "index-pack", "--stdin", NULL);
+ push_header_arg(&child.args, &hdr);
- if (gethostname(hostname, sizeof(hostname)))
+ if (xgethostname(hostname, sizeof(hostname)))
xsnprintf(hostname, sizeof(hostname), "localhost");
argv_array_pushf(&child.args,
"--keep=receive-pack %"PRIuMAX" on %s",
static void update_shallow_info(struct command *commands,
struct shallow_info *si,
- struct sha1_array *ref)
+ struct oid_array *ref)
{
struct command *cmd;
int *ref_status;
}
for (cmd = commands; cmd; cmd = cmd->next) {
- if (is_null_sha1(cmd->new_sha1))
+ if (is_null_oid(&cmd->new_oid))
continue;
- sha1_array_append(ref, cmd->new_sha1);
+ oid_array_append(ref, &cmd->new_oid);
cmd->index = ref->nr - 1;
}
si->ref = ref;
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))
+ if (is_null_oid(&cmd->new_oid))
continue;
if (ref_status[cmd->index]) {
cmd->error_string = "shallow update not allowed";
{
struct command *cmd;
for (cmd = commands; cmd; cmd = cmd->next) {
- if (!is_null_sha1(cmd->new_sha1))
+ if (!is_null_oid(&cmd->new_oid))
return 0;
}
return 1;
{
int advertise_refs = 0;
struct command *commands;
- struct sha1_array shallow = SHA1_ARRAY_INIT;
- struct sha1_array ref = SHA1_ARRAY_INIT;
+ struct oid_array shallow = OID_ARRAY_INIT;
+ struct oid_array ref = OID_ARRAY_INIT;
struct shallow_info si;
struct option options[] = {
if (use_push_options)
read_push_options(&push_options);
+ if (!check_cert_push_options(&push_options)) {
+ struct command *cmd;
+ for (cmd = commands; cmd; cmd = cmd->next)
+ cmd->error_string = "inconsistent push options";
+ }
prepare_shallow_info(&si, &shallow);
if (!si.nr_ours && !si.nr_theirs)
}
if (use_sideband)
packet_flush(1);
- sha1_array_clear(&shallow);
- sha1_array_clear(&ref);
+ oid_array_clear(&shallow);
+ oid_array_clear(&ref);
free((void *)push_cert_nonce);
return 0;
}