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-rw-r--r--send-pack.c169
1 files changed, 124 insertions, 45 deletions
diff --git a/send-pack.c b/send-pack.c
index 2e07ac3339..78bb34ebec 100644
--- a/send-pack.c
+++ b/send-pack.c
@@ -12,25 +12,45 @@
#include "version.h"
#include "sha1-array.h"
#include "gpg-interface.h"
+#include "cache.h"
-static int feed_object(const unsigned char *sha1, int fd, int negative)
+int option_parse_push_signed(const struct option *opt,
+ const char *arg, int unset)
{
- char buf[42];
+ if (unset) {
+ *(int *)(opt->value) = SEND_PACK_PUSH_CERT_NEVER;
+ return 0;
+ }
+ switch (git_parse_maybe_bool(arg)) {
+ case 1:
+ *(int *)(opt->value) = SEND_PACK_PUSH_CERT_ALWAYS;
+ return 0;
+ case 0:
+ *(int *)(opt->value) = SEND_PACK_PUSH_CERT_NEVER;
+ return 0;
+ }
+ if (!strcasecmp("if-asked", arg)) {
+ *(int *)(opt->value) = SEND_PACK_PUSH_CERT_IF_ASKED;
+ return 0;
+ }
+ die("bad %s argument: %s", opt->long_name, arg);
+}
+static void feed_object(const unsigned char *sha1, FILE *fh, int negative)
+{
if (negative && !has_sha1_file(sha1))
- return 1;
+ return;
- memcpy(buf + negative, sha1_to_hex(sha1), 40);
if (negative)
- buf[0] = '^';
- buf[40 + negative] = '\n';
- return write_or_whine(fd, buf, 41 + negative, "send-pack: send refs");
+ putc('^', fh);
+ fputs(sha1_to_hex(sha1), fh);
+ putc('\n', fh);
}
/*
* Make a pack stream and spit it out into file descriptor fd
*/
-static int pack_objects(int fd, struct ref *refs, struct sha1_array *extra, struct send_pack_args *args)
+static int pack_objects(int fd, struct ref *refs, struct oid_array *extra, struct send_pack_args *args)
{
/*
* The child becomes pack-objects --revs; we feed
@@ -50,7 +70,9 @@ static int pack_objects(int fd, struct ref *refs, struct sha1_array *extra, stru
NULL,
};
struct child_process po = CHILD_PROCESS_INIT;
+ FILE *po_in;
int i;
+ int rc;
i = 4;
if (args->use_thin_pack)
@@ -74,21 +96,22 @@ static int pack_objects(int fd, struct ref *refs, struct sha1_array *extra, stru
* We feed the pack-objects we just spawned with revision
* parameters by writing to the pipe.
*/
+ po_in = xfdopen(po.in, "w");
for (i = 0; i < extra->nr; i++)
- if (!feed_object(extra->sha1[i], po.in, 1))
- break;
+ feed_object(extra->oid[i].hash, po_in, 1);
while (refs) {
- if (!is_null_sha1(refs->old_sha1) &&
- !feed_object(refs->old_sha1, po.in, 1))
- break;
- if (!is_null_sha1(refs->new_sha1) &&
- !feed_object(refs->new_sha1, po.in, 0))
- break;
+ if (!is_null_oid(&refs->old_oid))
+ feed_object(refs->old_oid.hash, po_in, 1);
+ if (!is_null_oid(&refs->new_oid))
+ feed_object(refs->new_oid.hash, po_in, 0);
refs = refs->next;
}
- close(po.in);
+ fflush(po_in);
+ if (ferror(po_in))
+ die_errno("error writing to pack-objects");
+ fclose(po_in);
if (args->stateless_rpc) {
char *buf = xmalloc(LARGE_PACKET_MAX);
@@ -103,27 +126,44 @@ static int pack_objects(int fd, struct ref *refs, struct sha1_array *extra, stru
po.out = -1;
}
- if (finish_command(&po))
+ rc = finish_command(&po);
+ if (rc) {
+ /*
+ * For a normal non-zero exit, we assume pack-objects wrote
+ * something useful to stderr. For death by signal, though,
+ * we should mention it to the user. The exception is SIGPIPE
+ * (141), because that's a normal occurence if the remote end
+ * hangs up (and we'll report that by trying to read the unpack
+ * status).
+ */
+ if (rc > 128 && rc != 141)
+ error("pack-objects died of signal %d", rc - 128);
return -1;
+ }
+ return 0;
+}
+
+static int receive_unpack_status(int in)
+{
+ const char *line = packet_read_line(in, NULL);
+ if (!skip_prefix(line, "unpack ", &line))
+ return error(_("unable to parse remote unpack status: %s"), line);
+ if (strcmp(line, "ok"))
+ return error(_("remote unpack failed: %s"), line);
return 0;
}
static int receive_status(int in, struct ref *refs)
{
struct ref *hint;
- int ret = 0;
- char *line = packet_read_line(in, NULL);
- if (!starts_with(line, "unpack "))
- return error("did not receive remote status");
- if (strcmp(line, "unpack ok")) {
- error("unpack failed: %s", line + 7);
- ret = -1;
- }
+ int ret;
+
hint = NULL;
+ ret = receive_unpack_status(in);
while (1) {
char *refname;
char *msg;
- line = packet_read_line(in, NULL);
+ char *line = packet_read_line(in, NULL);
if (!line)
break;
if (!starts_with(line, "ok ") && !starts_with(line, "ng ")) {
@@ -159,8 +199,7 @@ static int receive_status(int in, struct ref *refs)
hint->status = REF_STATUS_REMOTE_REJECT;
ret = -1;
}
- if (msg)
- hint->remote_status = xstrdup(msg);
+ hint->remote_status = xstrdup_or_null(msg);
/* start our next search from the next ref */
hint = hint->next;
}
@@ -182,7 +221,7 @@ static int advertise_shallow_grafts_cb(const struct commit_graft *graft, void *c
{
struct strbuf *sb = cb;
if (graft->nr_parent == -1)
- packet_buf_write(sb, "shallow %s\n", sha1_to_hex(graft->sha1));
+ packet_buf_write(sb, "shallow %s\n", oid_to_hex(&graft->oid));
return 0;
}
@@ -238,12 +277,13 @@ static int generate_push_cert(struct strbuf *req_buf,
const char *push_cert_nonce)
{
const struct ref *ref;
+ struct string_list_item *item;
char *signing_key = xstrdup(get_signing_key());
const char *cp, *np;
struct strbuf cert = STRBUF_INIT;
int update_seen = 0;
- strbuf_addf(&cert, "certificate version 0.1\n");
+ strbuf_addstr(&cert, "certificate version 0.1\n");
strbuf_addf(&cert, "pusher %s ", signing_key);
datestamp(&cert);
strbuf_addch(&cert, '\n');
@@ -254,6 +294,9 @@ static int generate_push_cert(struct strbuf *req_buf,
}
if (push_cert_nonce[0])
strbuf_addf(&cert, "nonce %s\n", push_cert_nonce);
+ if (args->push_options)
+ for_each_string_list_item(item, args->push_options)
+ strbuf_addf(&cert, "push-option %s\n", item->string);
strbuf_addstr(&cert, "\n");
for (ref = remote_refs; ref; ref = ref->next) {
@@ -261,8 +304,8 @@ static int generate_push_cert(struct strbuf *req_buf,
continue;
update_seen = 1;
strbuf_addf(&cert, "%s %s %s\n",
- sha1_to_hex(ref->old_sha1),
- sha1_to_hex(ref->new_sha1),
+ oid_to_hex(&ref->old_oid),
+ oid_to_hex(&ref->new_oid),
ref->name);
}
if (!update_seen)
@@ -333,7 +376,7 @@ static void reject_invalid_nonce(const char *nonce, int len)
int send_pack(struct send_pack_args *args,
int fd[], struct child_process *conn,
struct ref *remote_refs,
- struct sha1_array *extra_have)
+ struct oid_array *extra_have)
{
int in = fd[0];
int out = fd[1];
@@ -348,6 +391,8 @@ int send_pack(struct send_pack_args *args,
int agent_supported = 0;
int use_atomic = 0;
int atomic_supported = 0;
+ int use_push_options = 0;
+ int push_options_supported = 0;
unsigned cmds_sent = 0;
int ret;
struct async demux;
@@ -370,14 +415,22 @@ int send_pack(struct send_pack_args *args,
args->use_thin_pack = 0;
if (server_supports("atomic"))
atomic_supported = 1;
- if (args->push_cert) {
- int len;
+ if (server_supports("push-options"))
+ push_options_supported = 1;
+ if (args->push_cert != SEND_PACK_PUSH_CERT_NEVER) {
+ int len;
push_cert_nonce = server_feature_value("push-cert", &len);
- if (!push_cert_nonce)
+ if (push_cert_nonce) {
+ reject_invalid_nonce(push_cert_nonce, len);
+ push_cert_nonce = xmemdupz(push_cert_nonce, len);
+ } else if (args->push_cert == SEND_PACK_PUSH_CERT_ALWAYS) {
die(_("the receiving end does not support --signed push"));
- reject_invalid_nonce(push_cert_nonce, len);
- push_cert_nonce = xmemdupz(push_cert_nonce, len);
+ } else if (args->push_cert == SEND_PACK_PUSH_CERT_IF_ASKED) {
+ warning(_("not sending a push certificate since the"
+ " receiving end does not support --signed"
+ " push"));
+ }
}
if (!remote_refs) {
@@ -390,6 +443,11 @@ int send_pack(struct send_pack_args *args,
use_atomic = atomic_supported && args->atomic;
+ if (args->push_options && !push_options_supported)
+ die(_("the receiving end does not support push options"));
+
+ use_push_options = push_options_supported && args->push_options;
+
if (status_report)
strbuf_addstr(&cap_buf, " report-status");
if (use_sideband)
@@ -398,6 +456,8 @@ int send_pack(struct send_pack_args *args,
strbuf_addstr(&cap_buf, " quiet");
if (use_atomic)
strbuf_addstr(&cap_buf, " atomic");
+ if (use_push_options)
+ strbuf_addstr(&cap_buf, " push-options");
if (agent_supported)
strbuf_addf(&cap_buf, " agent=%s", git_user_agent_sanitized());
@@ -413,7 +473,7 @@ int send_pack(struct send_pack_args *args,
if (!args->dry_run)
advertise_shallow_grafts_buf(&req_buf);
- if (!args->dry_run && args->push_cert)
+ if (!args->dry_run && push_cert_nonce)
cmds_sent = generate_push_cert(&req_buf, remote_refs, args,
cap_buf.buf, push_cert_nonce);
@@ -452,14 +512,14 @@ int send_pack(struct send_pack_args *args,
for (ref = remote_refs; ref; ref = ref->next) {
char *old_hex, *new_hex;
- if (args->dry_run || args->push_cert)
+ if (args->dry_run || push_cert_nonce)
continue;
if (check_to_send_update(ref, args) < 0)
continue;
- old_hex = sha1_to_hex(ref->old_sha1);
- new_hex = sha1_to_hex(ref->new_sha1);
+ old_hex = oid_to_hex(&ref->old_oid);
+ new_hex = oid_to_hex(&ref->new_oid);
if (!cmds_sent) {
packet_buf_write(&req_buf,
"%s %s %s%c%s",
@@ -472,6 +532,14 @@ int send_pack(struct send_pack_args *args,
}
}
+ if (use_push_options) {
+ struct string_list_item *item;
+
+ packet_buf_flush(&req_buf);
+ for_each_string_list_item(item, args->push_options)
+ packet_buf_write(&req_buf, "%s", item->string);
+ }
+
if (args->stateless_rpc) {
if (!args->dry_run && (cmds_sent || is_repository_shallow())) {
packet_buf_flush(&req_buf);
@@ -489,6 +557,7 @@ int send_pack(struct send_pack_args *args,
demux.proc = sideband_demux;
demux.data = fd;
demux.out = -1;
+ demux.isolate_sigpipe = 1;
if (start_async(&demux))
die("send-pack: unable to fork off sideband demultiplexer");
in = demux.out;
@@ -502,8 +571,18 @@ int send_pack(struct send_pack_args *args,
close(out);
if (git_connection_is_socket(conn))
shutdown(fd[0], SHUT_WR);
- if (use_sideband)
+
+ /*
+ * Do not even bother with the return value; we know we
+ * are failing, and just want the error() side effects.
+ */
+ if (status_report)
+ receive_unpack_status(in);
+
+ if (use_sideband) {
+ close(demux.out);
finish_async(&demux);
+ }
fd[1] = -1;
return -1;
}
@@ -522,11 +601,11 @@ int send_pack(struct send_pack_args *args,
packet_flush(out);
if (use_sideband && cmds_sent) {
+ close(demux.out);
if (finish_async(&demux)) {
error("error in sideband demultiplexer");
ret = -1;
}
- close(demux.out);
}
if (ret < 0)
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-28 15:36:07 +0000