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-rw-r--r--builtin/fetch-pack.c97
1 files changed, 88 insertions, 9 deletions
diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c
index dac3038e90..c8bf9b85b0 100644
--- a/builtin/fetch-pack.c
+++ b/builtin/fetch-pack.c
@@ -1,4 +1,4 @@
-#include "cache.h"
+#include "builtin.h"
#include "refs.h"
#include "pkt-line.h"
#include "commit.h"
@@ -9,11 +9,13 @@
#include "fetch-pack.h"
#include "remote.h"
#include "run-command.h"
+#include "transport.h"
static int transfer_unpack_limit = -1;
static int fetch_unpack_limit = -1;
static int unpack_limit = 100;
static int prefer_ofs_delta = 1;
+static int no_done;
static int fetch_fsck_objects = -1;
static int transfer_fsck_objects = -1;
static struct fetch_pack_args args = {
@@ -49,7 +51,7 @@ static void rev_list_push(struct commit *commit, int mark)
if (parse_commit(commit))
return;
- insert_by_date(commit, &rev_list);
+ commit_list_insert_by_date(commit, &rev_list);
if (!(commit->object.flags & COMMON))
non_common_revs++;
@@ -185,6 +187,36 @@ static void consume_shallow_list(int fd)
}
}
+struct write_shallow_data {
+ struct strbuf *out;
+ int use_pack_protocol;
+ int count;
+};
+
+static int write_one_shallow(const struct commit_graft *graft, void *cb_data)
+{
+ struct write_shallow_data *data = cb_data;
+ const char *hex = sha1_to_hex(graft->sha1);
+ data->count++;
+ if (data->use_pack_protocol)
+ packet_buf_write(data->out, "shallow %s", hex);
+ else {
+ strbuf_addstr(data->out, hex);
+ strbuf_addch(data->out, '\n');
+ }
+ return 0;
+}
+
+static int write_shallow_commits(struct strbuf *out, int use_pack_protocol)
+{
+ struct write_shallow_data data;
+ data.out = out;
+ data.use_pack_protocol = use_pack_protocol;
+ data.count = 0;
+ for_each_commit_graft(write_one_shallow, &data);
+ return data.count;
+}
+
static enum ack_type get_ack(int fd, unsigned char *result_sha1)
{
static char line[1000];
@@ -219,14 +251,40 @@ static void send_request(int fd, struct strbuf *buf)
safe_write(fd, buf->buf, buf->len);
}
+static void insert_one_alternate_ref(const struct ref *ref, void *unused)
+{
+ rev_list_insert_ref(NULL, ref->old_sha1, 0, NULL);
+}
+
+static void insert_alternate_refs(void)
+{
+ for_each_alternate_ref(insert_one_alternate_ref, NULL);
+}
+
+#define INITIAL_FLUSH 16
+#define PIPESAFE_FLUSH 32
+#define LARGE_FLUSH 1024
+
+static int next_flush(int count)
+{
+ int flush_limit = args.stateless_rpc ? LARGE_FLUSH : PIPESAFE_FLUSH;
+
+ if (count < flush_limit)
+ count <<= 1;
+ else
+ count += flush_limit;
+ return count;
+}
+
static int find_common(int fd[2], unsigned char *result_sha1,
struct ref *refs)
{
int fetching;
- int count = 0, flushes = 0, retval;
+ int count = 0, flushes = 0, flush_at = INITIAL_FLUSH, retval;
const unsigned char *sha1;
unsigned in_vain = 0;
int got_continue = 0;
+ int got_ready = 0;
struct strbuf req_buf = STRBUF_INIT;
size_t state_len = 0;
@@ -237,6 +295,7 @@ static int find_common(int fd[2], unsigned char *result_sha1,
marked = 1;
for_each_ref(rev_list_insert_ref, NULL);
+ insert_alternate_refs();
fetching = 0;
for ( ; refs ; refs = refs->next) {
@@ -264,6 +323,7 @@ static int find_common(int fd[2], unsigned char *result_sha1,
struct strbuf c = STRBUF_INIT;
if (multi_ack == 2) strbuf_addstr(&c, " multi_ack_detailed");
if (multi_ack == 1) strbuf_addstr(&c, " multi_ack");
+ if (no_done) strbuf_addstr(&c, " no-done");
if (use_sideband == 2) strbuf_addstr(&c, " side-band-64k");
if (use_sideband == 1) strbuf_addstr(&c, " side-band");
if (args.use_thin_pack) strbuf_addstr(&c, " thin-pack");
@@ -334,19 +394,20 @@ static int find_common(int fd[2], unsigned char *result_sha1,
if (args.verbose)
fprintf(stderr, "have %s\n", sha1_to_hex(sha1));
in_vain++;
- if (!(31 & ++count)) {
+ if (flush_at <= ++count) {
int ack;
packet_buf_flush(&req_buf);
send_request(fd[1], &req_buf);
strbuf_setlen(&req_buf, state_len);
flushes++;
+ flush_at = next_flush(count);
/*
* We keep one window "ahead" of the other side, and
* will wait for an ACK only on the next one
*/
- if (!args.stateless_rpc && count == 32)
+ if (!args.stateless_rpc && count == INITIAL_FLUSH)
continue;
consume_shallow_list(fd[0]);
@@ -366,6 +427,8 @@ static int find_common(int fd[2], unsigned char *result_sha1,
case ACK_continue: {
struct commit *commit =
lookup_commit(result_sha1);
+ if (!commit)
+ die("invalid commit %s", sha1_to_hex(result_sha1));
if (args.stateless_rpc
&& ack == ACK_common
&& !(commit->object.flags & COMMON)) {
@@ -381,6 +444,10 @@ static int find_common(int fd[2], unsigned char *result_sha1,
retval = 0;
in_vain = 0;
got_continue = 1;
+ if (ack == ACK_ready) {
+ rev_list = NULL;
+ got_ready = 1;
+ }
break;
}
}
@@ -394,8 +461,10 @@ static int find_common(int fd[2], unsigned char *result_sha1,
}
}
done:
- packet_buf_write(&req_buf, "done\n");
- send_request(fd[1], &req_buf);
+ if (!got_ready || !no_done) {
+ packet_buf_write(&req_buf, "done\n");
+ send_request(fd[1], &req_buf);
+ }
if (args.verbose)
fprintf(stderr, "done\n");
if (retval != 0) {
@@ -437,8 +506,10 @@ static int mark_complete(const char *path, const unsigned char *sha1, int flag,
}
if (o && o->type == OBJ_COMMIT) {
struct commit *commit = (struct commit *)o;
- commit->object.flags |= COMPLETE;
- insert_by_date(commit, &complete);
+ if (!(commit->object.flags & COMPLETE)) {
+ commit->object.flags |= COMPLETE;
+ commit_list_insert_by_date(commit, &complete);
+ }
}
return 0;
}
@@ -704,6 +775,12 @@ static struct ref *do_fetch_pack(int fd[2],
if (args.verbose)
fprintf(stderr, "Server supports multi_ack_detailed\n");
multi_ack = 2;
+ if (server_supports("no-done")) {
+ if (args.verbose)
+ fprintf(stderr, "Server supports no-done\n");
+ if (args.stateless_rpc)
+ no_done = 1;
+ }
}
else if (server_supports("multi_ack")) {
if (args.verbose)
@@ -822,6 +899,8 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
char **pack_lockfile_ptr = NULL;
struct child_process *conn;
+ packet_trace_identity("fetch-pack");
+
nr_heads = 0;
heads = NULL;
for (i = 1; i < argc; i++) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 18:07:52 +0000