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-rw-r--r--builtin-fetch-pack.c110
-rw-r--r--fetch-pack.h3
-rw-r--r--remote-curl.c69
3 files changed, 160 insertions, 22 deletions
diff --git a/builtin-fetch-pack.c b/builtin-fetch-pack.c
index 615f549..8ed4a6f 100644
--- a/builtin-fetch-pack.c
+++ b/builtin-fetch-pack.c
@@ -165,6 +165,24 @@ enum ack_type {
ACK_ready
};
+static void consume_shallow_list(int fd)
+{
+ if (args.stateless_rpc && args.depth > 0) {
+ /* If we sent a depth we will get back "duplicate"
+ * shallow and unshallow commands every time there
+ * is a block of have lines exchanged.
+ */
+ char line[1000];
+ while (packet_read_line(fd, line, sizeof(line))) {
+ if (!prefixcmp(line, "shallow "))
+ continue;
+ if (!prefixcmp(line, "unshallow "))
+ continue;
+ die("git fetch-pack: expected shallow list");
+ }
+ }
+}
+
static enum ack_type get_ack(int fd, unsigned char *result_sha1)
{
static char line[1000];
@@ -190,6 +208,15 @@ static enum ack_type get_ack(int fd, unsigned char *result_sha1)
die("git fetch_pack: expected ACK/NAK, got '%s'", line);
}
+static void send_request(int fd, struct strbuf *buf)
+{
+ if (args.stateless_rpc) {
+ send_sideband(fd, -1, buf->buf, buf->len, LARGE_PACKET_MAX);
+ packet_flush(fd);
+ } else
+ safe_write(fd, buf->buf, buf->len);
+}
+
static int find_common(int fd[2], unsigned char *result_sha1,
struct ref *refs)
{
@@ -199,7 +226,10 @@ static int find_common(int fd[2], unsigned char *result_sha1,
unsigned in_vain = 0;
int got_continue = 0;
struct strbuf req_buf = STRBUF_INIT;
+ size_t state_len = 0;
+ if (args.stateless_rpc && multi_ack == 1)
+ die("--stateless-rpc requires multi_ack_detailed");
if (marked)
for_each_ref(clear_marks, NULL);
marked = 1;
@@ -256,13 +286,13 @@ static int find_common(int fd[2], unsigned char *result_sha1,
if (args.depth > 0)
packet_buf_write(&req_buf, "deepen %d", args.depth);
packet_buf_flush(&req_buf);
-
- safe_write(fd[1], req_buf.buf, req_buf.len);
+ state_len = req_buf.len;
if (args.depth > 0) {
char line[1024];
unsigned char sha1[20];
+ send_request(fd[1], &req_buf);
while (packet_read_line(fd[0], line, sizeof(line))) {
if (!prefixcmp(line, "shallow ")) {
if (get_sha1_hex(line + 8, sha1))
@@ -284,28 +314,40 @@ static int find_common(int fd[2], unsigned char *result_sha1,
}
die("expected shallow/unshallow, got %s", line);
}
+ } else if (!args.stateless_rpc)
+ send_request(fd[1], &req_buf);
+
+ if (!args.stateless_rpc) {
+ /* If we aren't using the stateless-rpc interface
+ * we don't need to retain the headers.
+ */
+ strbuf_setlen(&req_buf, 0);
+ state_len = 0;
}
flushes = 0;
retval = -1;
while ((sha1 = get_rev())) {
- packet_write(fd[1], "have %s\n", sha1_to_hex(sha1));
+ packet_buf_write(&req_buf, "have %s\n", sha1_to_hex(sha1));
if (args.verbose)
fprintf(stderr, "have %s\n", sha1_to_hex(sha1));
in_vain++;
if (!(31 & ++count)) {
int ack;
- packet_flush(fd[1]);
+ packet_buf_flush(&req_buf);
+ send_request(fd[1], &req_buf);
+ strbuf_setlen(&req_buf, state_len);
flushes++;
/*
* We keep one window "ahead" of the other side, and
* will wait for an ACK only on the next one
*/
- if (count == 32)
+ if (!args.stateless_rpc && count == 32)
continue;
+ consume_shallow_list(fd[0]);
do {
ack = get_ack(fd[0], result_sha1);
if (args.verbose && ack)
@@ -322,6 +364,17 @@ static int find_common(int fd[2], unsigned char *result_sha1,
case ACK_continue: {
struct commit *commit =
lookup_commit(result_sha1);
+ if (args.stateless_rpc
+ && ack == ACK_common
+ && !(commit->object.flags & COMMON)) {
+ /* We need to replay the have for this object
+ * on the next RPC request so the peer knows
+ * it is in common with us.
+ */
+ const char *hex = sha1_to_hex(result_sha1);
+ packet_buf_write(&req_buf, "have %s\n", hex);
+ state_len = req_buf.len;
+ }
mark_common(commit, 0, 1);
retval = 0;
in_vain = 0;
@@ -339,7 +392,8 @@ static int find_common(int fd[2], unsigned char *result_sha1,
}
}
done:
- packet_write(fd[1], "done\n");
+ packet_buf_write(&req_buf, "done\n");
+ send_request(fd[1], &req_buf);
if (args.verbose)
fprintf(stderr, "done\n");
if (retval != 0) {
@@ -348,6 +402,7 @@ done:
}
strbuf_release(&req_buf);
+ consume_shallow_list(fd[0]);
while (flushes || multi_ack) {
int ack = get_ack(fd[0], result_sha1);
if (ack) {
@@ -672,6 +727,8 @@ static struct ref *do_fetch_pack(int fd[2],
*/
warning("no common commits");
+ if (args.stateless_rpc)
+ packet_flush(fd[1]);
if (get_pack(fd, pack_lockfile))
die("git fetch-pack: fetch failed.");
@@ -742,6 +799,8 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
struct ref *ref = NULL;
char *dest = NULL, **heads;
int fd[2];
+ char *pack_lockfile = NULL;
+ char **pack_lockfile_ptr = NULL;
struct child_process *conn;
nr_heads = 0;
@@ -791,6 +850,15 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
args.no_progress = 1;
continue;
}
+ if (!strcmp("--stateless-rpc", arg)) {
+ args.stateless_rpc = 1;
+ continue;
+ }
+ if (!strcmp("--lock-pack", arg)) {
+ args.lock_pack = 1;
+ pack_lockfile_ptr = &pack_lockfile;
+ continue;
+ }
usage(fetch_pack_usage);
}
dest = (char *)arg;
@@ -801,19 +869,27 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
if (!dest)
usage(fetch_pack_usage);
- conn = git_connect(fd, (char *)dest, args.uploadpack,
- args.verbose ? CONNECT_VERBOSE : 0);
- if (conn) {
- get_remote_heads(fd[0], &ref, 0, NULL, 0, NULL);
-
- ref = fetch_pack(&args, fd, conn, ref, dest, nr_heads, heads, NULL);
- close(fd[0]);
- close(fd[1]);
- if (finish_connect(conn))
- ref = NULL;
+ if (args.stateless_rpc) {
+ conn = NULL;
+ fd[0] = 0;
+ fd[1] = 1;
} else {
- ref = NULL;
+ conn = git_connect(fd, (char *)dest, args.uploadpack,
+ args.verbose ? CONNECT_VERBOSE : 0);
+ }
+
+ get_remote_heads(fd[0], &ref, 0, NULL, 0, NULL);
+
+ ref = fetch_pack(&args, fd, conn, ref, dest,
+ nr_heads, heads, pack_lockfile_ptr);
+ if (pack_lockfile) {
+ printf("lock %s\n", pack_lockfile);
+ fflush(stdout);
}
+ close(fd[0]);
+ close(fd[1]);
+ if (finish_connect(conn))
+ ref = NULL;
ret = !ref;
if (!ret && nr_heads) {
diff --git a/fetch-pack.h b/fetch-pack.h
index 8bd9c32..fbe85ac 100644
--- a/fetch-pack.h
+++ b/fetch-pack.h
@@ -13,7 +13,8 @@ struct fetch_pack_args
fetch_all:1,
verbose:1,
no_progress:1,
- include_tag:1;
+ include_tag:1,
+ stateless_rpc:1;
};
struct ref *fetch_pack(struct fetch_pack_args *args,
diff --git a/remote-curl.c b/remote-curl.c
index f1206cb..0eb6fc4 100644
--- a/remote-curl.c
+++ b/remote-curl.c
@@ -45,7 +45,7 @@ static int set_option(const char *name, const char *value)
options.progress = 0;
else
return -1;
- return 1 /* TODO implement later */;
+ return 0;
}
else if (!strcmp(name, "depth")) {
char *end;
@@ -53,7 +53,7 @@ static int set_option(const char *name, const char *value)
if (value == end || *end)
return -1;
options.depth = v;
- return 1 /* TODO implement later */;
+ return 0;
}
else if (!strcmp(name, "followtags")) {
if (!strcmp(value, "true"))
@@ -62,7 +62,7 @@ static int set_option(const char *name, const char *value)
options.followtags = 0;
else
return -1;
- return 1 /* TODO implement later */;
+ return 0;
}
else if (!strcmp(name, "dry-run")) {
if (!strcmp(value, "true"))
@@ -463,6 +463,8 @@ static int fetch_dumb(int nr_heads, struct ref **to_fetch)
char **targets = xmalloc(nr_heads * sizeof(char*));
int ret, i;
+ if (options.depth)
+ die("dumb http transport does not support --depth");
for (i = 0; i < nr_heads; i++)
targets[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1));
@@ -481,6 +483,65 @@ static int fetch_dumb(int nr_heads, struct ref **to_fetch)
return ret ? error("Fetch failed.") : 0;
}
+static int fetch_git(struct discovery *heads,
+ int nr_heads, struct ref **to_fetch)
+{
+ struct rpc_state rpc;
+ char *depth_arg = NULL;
+ const char **argv;
+ int argc = 0, i, err;
+
+ argv = xmalloc((15 + nr_heads) * sizeof(char*));
+ argv[argc++] = "fetch-pack";
+ argv[argc++] = "--stateless-rpc";
+ argv[argc++] = "--lock-pack";
+ if (options.followtags)
+ argv[argc++] = "--include-tag";
+ if (options.thin)
+ argv[argc++] = "--thin";
+ if (options.verbosity >= 3) {
+ argv[argc++] = "-v";
+ argv[argc++] = "-v";
+ }
+ if (!options.progress)
+ argv[argc++] = "--no-progress";
+ if (options.depth) {
+ struct strbuf buf = STRBUF_INIT;
+ strbuf_addf(&buf, "--depth=%lu", options.depth);
+ depth_arg = strbuf_detach(&buf, NULL);
+ argv[argc++] = depth_arg;
+ }
+ argv[argc++] = url;
+ for (i = 0; i < nr_heads; i++) {
+ struct ref *ref = to_fetch[i];
+ if (!ref->name || !*ref->name)
+ die("cannot fetch by sha1 over smart http");
+ argv[argc++] = ref->name;
+ }
+ argv[argc++] = NULL;
+
+ memset(&rpc, 0, sizeof(rpc));
+ rpc.service_name = "git-upload-pack",
+ rpc.argv = argv;
+
+ err = rpc_service(&rpc, heads);
+ if (rpc.result.len)
+ safe_write(1, rpc.result.buf, rpc.result.len);
+ strbuf_release(&rpc.result);
+ free(argv);
+ free(depth_arg);
+ return err;
+}
+
+static int fetch(int nr_heads, struct ref **to_fetch)
+{
+ struct discovery *d = discover_refs("git-upload-pack");
+ if (d->proto_git)
+ return fetch_git(d, nr_heads, to_fetch);
+ else
+ return fetch_dumb(nr_heads, to_fetch);
+}
+
static void parse_fetch(struct strbuf *buf)
{
struct ref **to_fetch = NULL;
@@ -523,7 +584,7 @@ static void parse_fetch(struct strbuf *buf)
break;
} while (1);
- if (fetch_dumb(nr_heads, to_fetch))
+ if (fetch(nr_heads, to_fetch))
exit(128); /* error already reported */
free_refs(list_head);
free(to_fetch);
generated by cgit v0.10.2-6-g49f6 at 2024-04-25 07:32:46 (GMT)