#include "cache.h"
+#include "config.h"
#include "lockfile.h"
#include "refs.h"
#include "pkt-line.h"
#include "version.h"
#include "prio-queue.h"
#include "sha1-array.h"
+#include "oidset.h"
static int transfer_unpack_limit = -1;
static int fetch_unpack_limit = -1;
#define COMMON_REF (1U << 2)
#define SEEN (1U << 3)
#define POPPED (1U << 4)
+#define ALTERNATE (1U << 5)
static int marked;
fputc('\n', stderr);
}
+struct alternate_object_cache {
+ struct object **items;
+ size_t nr, alloc;
+};
+
+static void cache_one_alternate(const char *refname,
+ const struct object_id *oid,
+ void *vcache)
+{
+ struct alternate_object_cache *cache = vcache;
+ struct object *obj = parse_object(oid);
+
+ if (!obj || (obj->flags & ALTERNATE))
+ return;
+
+ obj->flags |= ALTERNATE;
+ ALLOC_GROW(cache->items, cache->nr + 1, cache->alloc);
+ cache->items[cache->nr++] = obj;
+}
+
+static void for_each_cached_alternate(void (*cb)(struct object *))
+{
+ static int initialized;
+ static struct alternate_object_cache cache;
+ size_t i;
+
+ if (!initialized) {
+ for_each_alternate_ref(cache_one_alternate, &cache);
+ initialized = 1;
+ }
+
+ for (i = 0; i < cache.nr; i++)
+ cb(cache.items[i]);
+}
+
static void rev_list_push(struct commit *commit, int mark)
{
if (!(commit->object.flags & mark)) {
}
}
-static int rev_list_insert_ref(const char *refname, const unsigned char *sha1)
+static int rev_list_insert_ref(const char *refname, const struct object_id *oid)
{
- struct object *o = deref_tag(parse_object(sha1), refname, 0);
+ struct object *o = deref_tag(parse_object(oid), refname, 0);
if (o && o->type == OBJ_COMMIT)
rev_list_push((struct commit *)o, SEEN);
static int rev_list_insert_ref_oid(const char *refname, const struct object_id *oid,
int flag, void *cb_data)
{
- return rev_list_insert_ref(refname, oid->hash);
+ return rev_list_insert_ref(refname, oid);
}
static int clear_marks(const char *refname, const struct object_id *oid,
int flag, void *cb_data)
{
- struct object *o = deref_tag(parse_object(oid->hash), refname, 0);
+ struct object *o = deref_tag(parse_object(oid), refname, 0);
if (o && o->type == OBJ_COMMIT)
clear_commit_marks((struct commit *)o,
Get the next rev to send, ignoring the common.
*/
-static const unsigned char *get_rev(void)
+static const struct object_id *get_rev(void)
{
struct commit *commit = NULL;
}
}
- return commit->object.oid.hash;
+ return &commit->object.oid;
}
enum ack_type {
}
}
-static enum ack_type get_ack(int fd, unsigned char *result_sha1)
+static enum ack_type get_ack(int fd, struct object_id *result_oid)
{
int len;
char *line = packet_read_line(fd, &len);
if (!strcmp(line, "NAK"))
return NAK;
if (skip_prefix(line, "ACK ", &arg)) {
- if (!get_sha1_hex(arg, result_sha1)) {
+ if (!get_oid_hex(arg, result_oid)) {
arg += 40;
len -= arg - line;
if (len < 1)
return ACK;
}
}
+ if (skip_prefix(line, "ERR ", &arg))
+ die(_("remote error: %s"), arg);
die(_("git fetch-pack: expected ACK/NAK, got '%s'"), line);
}
write_or_die(fd, buf->buf, buf->len);
}
-static void insert_one_alternate_ref(const struct ref *ref, void *unused)
+static void insert_one_alternate_object(struct object *obj)
{
- rev_list_insert_ref(NULL, ref->old_oid.hash);
+ rev_list_insert_ref(NULL, &obj->oid);
}
#define INITIAL_FLUSH 16
}
static int find_common(struct fetch_pack_args *args,
- int fd[2], unsigned char *result_sha1,
+ int fd[2], struct object_id *result_oid,
struct ref *refs)
{
int fetching;
int count = 0, flushes = 0, flush_at = INITIAL_FLUSH, retval;
- const unsigned char *sha1;
+ const struct object_id *oid;
unsigned in_vain = 0;
int got_continue = 0;
int got_ready = 0;
marked = 1;
for_each_ref(rev_list_insert_ref_oid, NULL);
- for_each_alternate_ref(insert_one_alternate_ref, NULL);
+ for_each_cached_alternate(insert_one_alternate_object);
fetching = 0;
for ( ; refs ; refs = refs->next) {
- unsigned char *remote = refs->old_oid.hash;
+ struct object_id *remote = &refs->old_oid;
const char *remote_hex;
struct object *o;
* interested in the case we *know* the object is
* reachable and we have already scanned it.
*/
- if (((o = lookup_object(remote)) != NULL) &&
+ if (((o = lookup_object(remote->hash)) != NULL) &&
(o->flags & COMPLETE)) {
continue;
}
- remote_hex = sha1_to_hex(remote);
+ remote_hex = oid_to_hex(remote);
if (!fetching) {
struct strbuf c = STRBUF_INIT;
if (multi_ack == 2) strbuf_addstr(&c, " multi_ack_detailed");
if (args->depth > 0)
packet_buf_write(&req_buf, "deepen %d", args->depth);
if (args->deepen_since) {
- unsigned long max_age = approxidate(args->deepen_since);
- packet_buf_write(&req_buf, "deepen-since %lu", max_age);
+ timestamp_t max_age = approxidate(args->deepen_since);
+ packet_buf_write(&req_buf, "deepen-since %"PRItime, max_age);
}
if (args->deepen_not) {
int i;
if (args->deepen) {
char *line;
const char *arg;
- unsigned char sha1[20];
+ struct object_id oid;
send_request(args, fd[1], &req_buf);
while ((line = packet_read_line(fd[0], NULL))) {
if (skip_prefix(line, "shallow ", &arg)) {
- if (get_sha1_hex(arg, sha1))
+ if (get_oid_hex(arg, &oid))
die(_("invalid shallow line: %s"), line);
- register_shallow(sha1);
+ register_shallow(&oid);
continue;
}
if (skip_prefix(line, "unshallow ", &arg)) {
- if (get_sha1_hex(arg, sha1))
+ if (get_oid_hex(arg, &oid))
die(_("invalid unshallow line: %s"), line);
- if (!lookup_object(sha1))
+ if (!lookup_object(oid.hash))
die(_("object not found: %s"), line);
/* make sure that it is parsed as shallow */
- if (!parse_object(sha1))
+ if (!parse_object(&oid))
die(_("error in object: %s"), line);
- if (unregister_shallow(sha1))
+ if (unregister_shallow(&oid))
die(_("no shallow found: %s"), line);
continue;
}
flushes = 0;
retval = -1;
- while ((sha1 = get_rev())) {
- packet_buf_write(&req_buf, "have %s\n", sha1_to_hex(sha1));
- print_verbose(args, "have %s", sha1_to_hex(sha1));
+ while ((oid = get_rev())) {
+ packet_buf_write(&req_buf, "have %s\n", oid_to_hex(oid));
+ print_verbose(args, "have %s", oid_to_hex(oid));
in_vain++;
if (flush_at <= ++count) {
int ack;
consume_shallow_list(args, fd[0]);
do {
- ack = get_ack(fd[0], result_sha1);
+ ack = get_ack(fd[0], result_oid);
if (ack)
print_verbose(args, _("got %s %d %s"), "ack",
- ack, sha1_to_hex(result_sha1));
+ ack, oid_to_hex(result_oid));
switch (ack) {
case ACK:
flushes = 0;
case ACK_ready:
case ACK_continue: {
struct commit *commit =
- lookup_commit(result_sha1);
+ lookup_commit(result_oid);
if (!commit)
- die(_("invalid commit %s"), sha1_to_hex(result_sha1));
+ die(_("invalid commit %s"), oid_to_hex(result_oid));
if (args->stateless_rpc
&& ack == ACK_common
&& !(commit->object.flags & COMMON)) {
* on the next RPC request so the peer knows
* it is in common with us.
*/
- const char *hex = sha1_to_hex(result_sha1);
+ const char *hex = oid_to_hex(result_oid);
packet_buf_write(&req_buf, "have %s\n", hex);
state_len = req_buf.len;
/*
if (!got_ready || !no_done)
consume_shallow_list(args, fd[0]);
while (flushes || multi_ack) {
- int ack = get_ack(fd[0], result_sha1);
+ int ack = get_ack(fd[0], result_oid);
if (ack) {
print_verbose(args, _("got %s (%d) %s"), "ack",
- ack, sha1_to_hex(result_sha1));
+ ack, oid_to_hex(result_oid));
if (ack == ACK)
return 0;
multi_ack = 1;
static struct commit_list *complete;
-static int mark_complete(const unsigned char *sha1)
+static int mark_complete(const struct object_id *oid)
{
- struct object *o = parse_object(sha1);
+ struct object *o = parse_object(oid);
while (o && o->type == OBJ_TAG) {
struct tag *t = (struct tag *) o;
if (!t->tagged)
break; /* broken repository */
o->flags |= COMPLETE;
- o = parse_object(t->tagged->oid.hash);
+ o = parse_object(&t->tagged->oid);
}
if (o && o->type == OBJ_COMMIT) {
struct commit *commit = (struct commit *)o;
static int mark_complete_oid(const char *refname, const struct object_id *oid,
int flag, void *cb_data)
{
- return mark_complete(oid->hash);
+ return mark_complete(oid);
}
static void mark_recent_complete_commits(struct fetch_pack_args *args,
- unsigned long cutoff)
+ timestamp_t cutoff)
{
while (complete && cutoff <= complete->item->date) {
print_verbose(args, _("Marking %s as complete"),
}
}
+static void add_refs_to_oidset(struct oidset *oids, struct ref *refs)
+{
+ for (; refs; refs = refs->next)
+ oidset_insert(oids, &refs->old_oid);
+}
+
+static int tip_oids_contain(struct oidset *tip_oids,
+ struct ref *unmatched, struct ref *newlist,
+ const struct object_id *id)
+{
+ /*
+ * Note that this only looks at the ref lists the first time it's
+ * called. This works out in filter_refs() because even though it may
+ * add to "newlist" between calls, the additions will always be for
+ * oids that are already in the set.
+ */
+ if (!tip_oids->map.tablesize) {
+ add_refs_to_oidset(tip_oids, unmatched);
+ add_refs_to_oidset(tip_oids, newlist);
+ }
+ return oidset_contains(tip_oids, id);
+}
+
static void filter_refs(struct fetch_pack_args *args,
struct ref **refs,
struct ref **sought, int nr_sought)
{
struct ref *newlist = NULL;
struct ref **newtail = &newlist;
+ struct ref *unmatched = NULL;
struct ref *ref, *next;
+ struct oidset tip_oids = OIDSET_INIT;
int i;
i = 0;
ref->next = NULL;
newtail = &ref->next;
} else {
- free(ref);
+ ref->next = unmatched;
+ unmatched = ref;
}
}
/* Append unmatched requests to the list */
for (i = 0; i < nr_sought; i++) {
- unsigned char sha1[20];
+ struct object_id oid;
+ const char *p;
ref = sought[i];
if (ref->match_status != REF_NOT_MATCHED)
continue;
- if (get_sha1_hex(ref->name, sha1) ||
- ref->name[40] != '\0' ||
- hashcmp(sha1, ref->old_oid.hash))
+ if (parse_oid_hex(ref->name, &oid, &p) ||
+ *p != '\0' ||
+ oidcmp(&oid, &ref->old_oid))
continue;
if ((allow_unadvertised_object_request &
- (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1))) {
+ (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1)) ||
+ tip_oids_contain(&tip_oids, unmatched, newlist,
+ &ref->old_oid)) {
ref->match_status = REF_MATCHED;
*newtail = copy_ref(ref);
newtail = &(*newtail)->next;
ref->match_status = REF_UNADVERTISED_NOT_ALLOWED;
}
}
+
+ oidset_clear(&tip_oids);
+ for (ref = unmatched; ref; ref = next) {
+ next = ref->next;
+ free(ref);
+ }
+
*refs = newlist;
}
-static void mark_alternate_complete(const struct ref *ref, void *unused)
+static void mark_alternate_complete(struct object *obj)
{
- mark_complete(ref->old_oid.hash);
+ mark_complete(&obj->oid);
}
static int everything_local(struct fetch_pack_args *args,
{
struct ref *ref;
int retval;
- unsigned long cutoff = 0;
+ timestamp_t cutoff = 0;
save_commit_buffer = 0;
if (!has_object_file(&ref->old_oid))
continue;
- o = parse_object(ref->old_oid.hash);
+ o = parse_object(&ref->old_oid);
if (!o)
continue;
if (!args->deepen) {
for_each_ref(mark_complete_oid, NULL);
- for_each_alternate_ref(mark_alternate_complete, NULL);
+ for_each_cached_alternate(mark_alternate_complete);
commit_list_sort_by_date(&complete);
if (cutoff)
mark_recent_complete_commits(args, cutoff);
filter_refs(args, refs, sought, nr_sought);
for (retval = 1, ref = *refs; ref ; ref = ref->next) {
- const unsigned char *remote = ref->old_oid.hash;
+ const struct object_id *remote = &ref->old_oid;
struct object *o;
- o = lookup_object(remote);
+ o = lookup_object(remote->hash);
if (!o || !(o->flags & COMPLETE)) {
retval = 0;
- print_verbose(args, "want %s (%s)", sha1_to_hex(remote),
+ print_verbose(args, "want %s (%s)", oid_to_hex(remote),
ref->name);
continue;
}
- print_verbose(args, _("already have %s (%s)"), sha1_to_hex(remote),
+ print_verbose(args, _("already have %s (%s)"), oid_to_hex(remote),
ref->name);
}
return retval;
if (args->use_thin_pack)
argv_array_push(&cmd.args, "--fix-thin");
if (args->lock_pack || unpack_limit) {
- char hostname[256];
- if (gethostname(hostname, sizeof(hostname)))
+ char hostname[HOST_NAME_MAX + 1];
+ if (xgethostname(hostname, sizeof(hostname)))
xsnprintf(hostname, sizeof(hostname), "localhost");
argv_array_pushf(&cmd.args,
"--keep=fetch-pack %"PRIuMAX " on %s",
char **pack_lockfile)
{
struct ref *ref = copy_ref_list(orig_ref);
- unsigned char sha1[20];
+ struct object_id oid;
const char *agent_feature;
int agent_len;
packet_flush(fd[1]);
goto all_done;
}
- if (find_common(args, fd, sha1, ref) < 0)
+ if (find_common(args, fd, &oid, ref) < 0)
if (!args->keep_pack)
/* When cloning, it is not unusual to have
* no common commit.
struct ref **sought, int nr_sought,
struct shallow_info *si)
{
- struct sha1_array ref = SHA1_ARRAY_INIT;
+ struct oid_array ref = OID_ARRAY_INIT;
int *status;
int i;
* 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;
+ struct oid_array extra = OID_ARRAY_INIT;
+ struct object_id *oid = si->shallow->oid;
for (i = 0; i < si->shallow->nr; i++)
- if (has_sha1_file(sha1[i]))
- sha1_array_append(&extra, sha1[i]);
+ if (has_object_file(&oid[i]))
+ oid_array_append(&extra, &oid[i]);
if (extra.nr) {
setup_alternate_shallow(&shallow_lock,
&alternate_shallow_file,
&extra);
commit_lock_file(&shallow_lock);
}
- sha1_array_clear(&extra);
+ oid_array_clear(&extra);
return;
}
if (!si->nr_ours && !si->nr_theirs)
return;
for (i = 0; i < nr_sought; i++)
- sha1_array_append(&ref, sought[i]->old_oid.hash);
+ oid_array_append(&ref, &sought[i]->old_oid);
si->ref = &ref;
if (args->update_shallow) {
* shallow roots that are actually reachable from new
* refs.
*/
- struct sha1_array extra = SHA1_ARRAY_INIT;
- unsigned char (*sha1)[20] = si->shallow->sha1;
+ struct oid_array extra = OID_ARRAY_INIT;
+ struct object_id *oid = si->shallow->oid;
assign_shallow_commits_to_refs(si, NULL, NULL);
if (!si->nr_ours && !si->nr_theirs) {
- sha1_array_clear(&ref);
+ oid_array_clear(&ref);
return;
}
for (i = 0; i < si->nr_ours; i++)
- sha1_array_append(&extra, sha1[si->ours[i]]);
+ oid_array_append(&extra, &oid[si->ours[i]]);
for (i = 0; i < si->nr_theirs; i++)
- sha1_array_append(&extra, sha1[si->theirs[i]]);
+ oid_array_append(&extra, &oid[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);
+ oid_array_clear(&extra);
+ oid_array_clear(&ref);
return;
}
sought[i]->status = REF_STATUS_REJECT_SHALLOW;
}
free(status);
- sha1_array_clear(&ref);
+ oid_array_clear(&ref);
}
struct ref *fetch_pack(struct fetch_pack_args *args,
const struct ref *ref,
const char *dest,
struct ref **sought, int nr_sought,
- struct sha1_array *shallow,
+ struct oid_array *shallow,
char **pack_lockfile)
{
struct ref *ref_cpy;