summaryrefslogtreecommitdiff
path: root/fetch-pack.c
diff options
context:
space:
mode:
Diffstat (limited to 'fetch-pack.c')
-rw-r--r--fetch-pack.c146
1 files changed, 92 insertions, 54 deletions
diff --git a/fetch-pack.c b/fetch-pack.c
index afb8b05024..fbbc99c888 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -1,4 +1,5 @@
#include "cache.h"
+#include "config.h"
#include "lockfile.h"
#include "refs.h"
#include "pkt-line.h"
@@ -15,6 +16,7 @@
#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;
@@ -78,7 +80,7 @@ static void cache_one_alternate(const char *refname,
void *vcache)
{
struct alternate_object_cache *cache = vcache;
- struct object *obj = parse_object(oid->hash);
+ struct object *obj = parse_object(oid);
if (!obj || (obj->flags & ALTERNATE))
return;
@@ -118,9 +120,9 @@ static void rev_list_push(struct commit *commit, int 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);
@@ -131,13 +133,13 @@ static int rev_list_insert_ref(const char *refname, const unsigned char *sha1)
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,
@@ -183,7 +185,7 @@ static void mark_common(struct commit *commit,
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;
@@ -222,7 +224,7 @@ static const unsigned char *get_rev(void)
}
}
- return commit->object.oid.hash;
+ return &commit->object.oid;
}
enum ack_type {
@@ -251,7 +253,7 @@ static void consume_shallow_list(struct fetch_pack_args *args, int fd)
}
}
-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);
@@ -262,7 +264,7 @@ static enum ack_type get_ack(int fd, unsigned char *result_sha1)
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)
@@ -293,7 +295,7 @@ static void send_request(struct fetch_pack_args *args,
static void insert_one_alternate_object(struct object *obj)
{
- rev_list_insert_ref(NULL, obj->oid.hash);
+ rev_list_insert_ref(NULL, &obj->oid);
}
#define INITIAL_FLUSH 16
@@ -317,12 +319,12 @@ static int next_flush(struct fetch_pack_args *args, int count)
}
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;
@@ -340,7 +342,7 @@ static int find_common(struct fetch_pack_args *args,
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;
@@ -354,12 +356,12 @@ static int find_common(struct fetch_pack_args *args,
* 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");
@@ -394,8 +396,8 @@ static int find_common(struct fetch_pack_args *args,
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;
@@ -410,25 +412,25 @@ static int find_common(struct fetch_pack_args *args,
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;
}
@@ -447,9 +449,9 @@ static int find_common(struct fetch_pack_args *args,
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;
@@ -469,10 +471,10 @@ static int find_common(struct fetch_pack_args *args,
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;
@@ -483,9 +485,9 @@ static int find_common(struct fetch_pack_args *args,
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)) {
@@ -493,7 +495,7 @@ static int find_common(struct fetch_pack_args *args,
* 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;
/*
@@ -538,10 +540,10 @@ done:
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;
@@ -555,16 +557,16 @@ done:
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;
@@ -579,11 +581,11 @@ static int mark_complete(const unsigned char *sha1)
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"),
@@ -592,13 +594,38 @@ static void mark_recent_complete_commits(struct fetch_pack_args *args,
}
}
+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;
@@ -631,24 +658,28 @@ static void filter_refs(struct fetch_pack_args *args,
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;
@@ -656,12 +687,19 @@ static void filter_refs(struct fetch_pack_args *args,
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(struct object *obj)
{
- mark_complete(obj->oid.hash);
+ mark_complete(&obj->oid);
}
static int everything_local(struct fetch_pack_args *args,
@@ -670,7 +708,7 @@ 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;
@@ -680,7 +718,7 @@ static int everything_local(struct fetch_pack_args *args,
if (!has_object_file(&ref->old_oid))
continue;
- o = parse_object(ref->old_oid.hash);
+ o = parse_object(&ref->old_oid);
if (!o)
continue;
@@ -724,17 +762,17 @@ static int everything_local(struct fetch_pack_args *args,
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;
@@ -873,7 +911,7 @@ static struct ref *do_fetch_pack(struct fetch_pack_args *args,
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;
@@ -945,7 +983,7 @@ static struct ref *do_fetch_pack(struct fetch_pack_args *args,
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.