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Move push matching and reporting logic into transport.c

For native-protocol pushes (and other protocols as they are converted
to the new method), this moves the refspec match, tracking update, and
report message out of send-pack() and into transport_push(), where it
can be shared completely with other protocols. This also makes fetch
and push more similar in terms of what code is in what file.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Daniel Barkalow 2009-03-08 21:06:07 -04:00 committed by Junio C Hamano
parent a9c37a72c4
commit 64fcef2daa
4 changed files with 343 additions and 92 deletions

View File

@ -11,7 +11,6 @@ static const char send_pack_usage[] =
" --all and explicit <ref> specification are mutually exclusive.";
static struct send_pack_args args = {
/* .receivepack = */ "git-receive-pack",
};
static int feed_object(const unsigned char *sha1, int fd, int negative)
@ -31,7 +30,7 @@ static int feed_object(const unsigned char *sha1, int fd, int negative)
/*
* Make a pack stream and spit it out into file descriptor fd
*/
static int pack_objects(int fd, struct ref *refs, struct extra_have_objects *extra)
static int pack_objects(int fd, struct ref *refs, struct extra_have_objects *extra, struct send_pack_args *args)
{
/*
* The child becomes pack-objects --revs; we feed
@ -49,7 +48,7 @@ static int pack_objects(int fd, struct ref *refs, struct extra_have_objects *ext
struct child_process po;
int i;
if (args.use_thin_pack)
if (args->use_thin_pack)
argv[4] = "--thin";
memset(&po, 0, sizeof(po));
po.argv = argv;
@ -83,8 +82,6 @@ static int pack_objects(int fd, struct ref *refs, struct extra_have_objects *ext
return 0;
}
static struct ref *remote_refs, **remote_tail;
static int receive_status(int in, struct ref *refs)
{
struct ref *hint;
@ -300,27 +297,19 @@ static int refs_pushed(struct ref *ref)
return 0;
}
static int do_send_pack(int in, int out, struct remote *remote, const char *dest, int nr_refspec, const char **refspec)
int send_pack(struct send_pack_args *args,
int fd[], struct child_process *conn,
struct ref *remote_refs,
struct extra_have_objects *extra_have)
{
struct ref *ref, *local_refs;
int in = fd[0];
int out = fd[1];
struct ref *ref;
int new_refs;
int ask_for_status_report = 0;
int allow_deleting_refs = 0;
int expect_status_report = 0;
int flags = MATCH_REFS_NONE;
int ret;
struct extra_have_objects extra_have;
memset(&extra_have, 0, sizeof(extra_have));
if (args.send_all)
flags |= MATCH_REFS_ALL;
if (args.send_mirror)
flags |= MATCH_REFS_MIRROR;
/* No funny business with the matcher */
remote_tail = get_remote_heads(in, &remote_refs, 0, NULL, REF_NORMAL,
&extra_have);
local_refs = get_local_heads();
/* Does the other end support the reporting? */
if (server_supports("report-status"))
@ -328,19 +317,9 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest
if (server_supports("delete-refs"))
allow_deleting_refs = 1;
/* match them up */
if (!remote_tail)
remote_tail = &remote_refs;
if (match_refs(local_refs, remote_refs, &remote_tail,
nr_refspec, refspec, flags)) {
close(out);
return -1;
}
if (!remote_refs) {
fprintf(stderr, "No refs in common and none specified; doing nothing.\n"
"Perhaps you should specify a branch such as 'master'.\n");
close(out);
return 0;
}
@ -352,7 +331,7 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest
if (ref->peer_ref)
hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
else if (!args.send_mirror)
else if (!args->send_mirror)
continue;
ref->deletion = is_null_sha1(ref->new_sha1);
@ -391,7 +370,7 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest
(!has_sha1_file(ref->old_sha1)
|| !ref_newer(ref->new_sha1, ref->old_sha1));
if (ref->nonfastforward && !ref->force && !args.force_update) {
if (ref->nonfastforward && !ref->force && !args->force_update) {
ref->status = REF_STATUS_REJECT_NONFASTFORWARD;
continue;
}
@ -399,7 +378,7 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest
if (!ref->deletion)
new_refs++;
if (!args.dry_run) {
if (!args->dry_run) {
char *old_hex = sha1_to_hex(ref->old_sha1);
char *new_hex = sha1_to_hex(ref->new_sha1);
@ -420,27 +399,19 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest
}
packet_flush(out);
if (new_refs && !args.dry_run) {
if (pack_objects(out, remote_refs, &extra_have) < 0)
if (new_refs && !args->dry_run) {
if (pack_objects(out, remote_refs, extra_have, args) < 0) {
for (ref = remote_refs; ref; ref = ref->next)
ref->status = REF_STATUS_NONE;
return -1;
}
}
else
close(out);
if (expect_status_report)
ret = receive_status(in, remote_refs);
else
ret = 0;
print_push_status(dest, remote_refs);
if (!args.dry_run && remote) {
for (ref = remote_refs; ref; ref = ref->next)
update_tracking_ref(remote, ref);
}
if (!refs_pushed(remote_refs))
fprintf(stderr, "Everything up-to-date\n");
if (ret < 0)
return ret;
for (ref = remote_refs; ref; ref = ref->next) {
@ -489,11 +460,19 @@ static void verify_remote_names(int nr_heads, const char **heads)
int cmd_send_pack(int argc, const char **argv, const char *prefix)
{
int i, nr_heads = 0;
const char **heads = NULL;
int i, nr_refspecs = 0;
const char **refspecs = NULL;
const char *remote_name = NULL;
struct remote *remote = NULL;
const char *dest = NULL;
int fd[2];
struct child_process *conn;
struct extra_have_objects extra_have;
struct ref *remote_refs, **remote_tail, *local_refs;
int ret;
int send_all = 0;
const char *receivepack = "git-receive-pack";
int flags;
argv++;
for (i = 1; i < argc; i++, argv++) {
@ -501,11 +480,11 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix)
if (*arg == '-') {
if (!prefixcmp(arg, "--receive-pack=")) {
args.receivepack = arg + 15;
receivepack = arg + 15;
continue;
}
if (!prefixcmp(arg, "--exec=")) {
args.receivepack = arg + 7;
receivepack = arg + 7;
continue;
}
if (!prefixcmp(arg, "--remote=")) {
@ -513,7 +492,7 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix)
continue;
}
if (!strcmp(arg, "--all")) {
args.send_all = 1;
send_all = 1;
continue;
}
if (!strcmp(arg, "--dry-run")) {
@ -542,8 +521,8 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix)
dest = arg;
continue;
}
heads = (const char **) argv;
nr_heads = argc - i;
refspecs = (const char **) argv;
nr_refspecs = argc - i;
break;
}
if (!dest)
@ -552,8 +531,8 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix)
* --all and --mirror are incompatible; neither makes sense
* with any refspecs.
*/
if ((heads && (args.send_all || args.send_mirror)) ||
(args.send_all && args.send_mirror))
if ((refspecs && (send_all || args.send_mirror)) ||
(send_all && args.send_mirror))
usage(send_pack_usage);
if (remote_name) {
@ -564,24 +543,50 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix)
}
}
return send_pack(&args, dest, remote, nr_heads, heads);
}
conn = git_connect(fd, dest, receivepack, args.verbose ? CONNECT_VERBOSE : 0);
int send_pack(struct send_pack_args *my_args,
const char *dest, struct remote *remote,
int nr_heads, const char **heads)
{
int fd[2], ret;
struct child_process *conn;
memset(&extra_have, 0, sizeof(extra_have));
memcpy(&args, my_args, sizeof(args));
get_remote_heads(fd[0], &remote_refs, 0, NULL, REF_NORMAL,
&extra_have);
verify_remote_names(nr_heads, heads);
verify_remote_names(nr_refspecs, refspecs);
conn = git_connect(fd, dest, args.receivepack, args.verbose ? CONNECT_VERBOSE : 0);
ret = do_send_pack(fd[0], fd[1], remote, dest, nr_heads, heads);
local_refs = get_local_heads();
flags = MATCH_REFS_NONE;
if (send_all)
flags |= MATCH_REFS_ALL;
if (args.send_mirror)
flags |= MATCH_REFS_MIRROR;
/* match them up */
remote_tail = &remote_refs;
while (*remote_tail)
remote_tail = &((*remote_tail)->next);
if (match_refs(local_refs, remote_refs, &remote_tail,
nr_refspecs, refspecs, flags)) {
return -1;
}
ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
close(fd[1]);
close(fd[0]);
/* do_send_pack always closes fd[1] */
ret |= finish_connect(conn);
return !!ret;
print_push_status(dest, remote_refs);
if (!args.dry_run && remote) {
struct ref *ref;
for (ref = remote_refs; ref; ref = ref->next)
update_tracking_ref(remote, ref);
}
if (!ret && !refs_pushed(remote_refs))
fprintf(stderr, "Everything up-to-date\n");
return ret;
}

View File

@ -2,9 +2,7 @@
#define SEND_PACK_H
struct send_pack_args {
const char *receivepack;
unsigned verbose:1,
send_all:1,
send_mirror:1,
force_update:1,
use_thin_pack:1,
@ -12,7 +10,7 @@ struct send_pack_args {
};
int send_pack(struct send_pack_args *args,
const char *dest, struct remote *remote,
int nr_heads, const char **heads);
int fd[], struct child_process *conn,
struct ref *remote_refs, struct extra_have_objects *extra_have);
#endif

View File

@ -138,7 +138,7 @@ static void insert_packed_refs(const char *packed_refs, struct ref **list)
}
}
static struct ref *get_refs_via_rsync(struct transport *transport)
static struct ref *get_refs_via_rsync(struct transport *transport, int for_push)
{
struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT;
struct ref dummy, *tail = &dummy;
@ -146,6 +146,9 @@ static struct ref *get_refs_via_rsync(struct transport *transport)
const char *args[5];
int temp_dir_len;
if (for_push)
return NULL;
/* copy the refs to the temporary directory */
strbuf_addstr(&temp_dir, git_path("rsync-refs-XXXXXX"));
@ -422,7 +425,7 @@ static int curl_transport_push(struct transport *transport, int refspec_nr, cons
return !!err;
}
static struct ref *get_refs_via_curl(struct transport *transport)
static struct ref *get_refs_via_curl(struct transport *transport, int for_push)
{
struct strbuf buffer = STRBUF_INIT;
char *data, *start, *mid;
@ -439,6 +442,9 @@ static struct ref *get_refs_via_curl(struct transport *transport)
struct walker *walker;
if (for_push)
return NULL;
if (!transport->data)
transport->data = get_http_walker(transport->url,
transport->remote);
@ -525,12 +531,15 @@ struct bundle_transport_data {
struct bundle_header header;
};
static struct ref *get_refs_from_bundle(struct transport *transport)
static struct ref *get_refs_from_bundle(struct transport *transport, int for_push)
{
struct bundle_transport_data *data = transport->data;
struct ref *result = NULL;
int i;
if (for_push)
return NULL;
if (data->fd > 0)
close(data->fd);
data->fd = read_bundle_header(transport->url, &data->header);
@ -571,6 +580,7 @@ struct git_transport_data {
int fd[2];
const char *uploadpack;
const char *receivepack;
struct extra_have_objects extra_have;
};
static int set_git_option(struct transport *connection,
@ -602,20 +612,23 @@ static int set_git_option(struct transport *connection,
return 1;
}
static int connect_setup(struct transport *transport)
static int connect_setup(struct transport *transport, int for_push, int verbose)
{
struct git_transport_data *data = transport->data;
data->conn = git_connect(data->fd, transport->url, data->uploadpack, 0);
data->conn = git_connect(data->fd, transport->url,
for_push ? data->receivepack : data->uploadpack,
verbose ? CONNECT_VERBOSE : 0);
return 0;
}
static struct ref *get_refs_via_connect(struct transport *transport)
static struct ref *get_refs_via_connect(struct transport *transport, int for_push)
{
struct git_transport_data *data = transport->data;
struct ref *refs;
connect_setup(transport);
get_remote_heads(data->fd[0], &refs, 0, NULL, 0, NULL);
connect_setup(transport, for_push, 0);
get_remote_heads(data->fd[0], &refs, 0, NULL,
for_push ? REF_NORMAL : 0, &data->extra_have);
return refs;
}
@ -647,7 +660,7 @@ static int fetch_refs_via_pack(struct transport *transport,
origh[i] = heads[i] = xstrdup(to_fetch[i]->name);
if (!data->conn) {
connect_setup(transport);
connect_setup(transport, 0, 0);
get_remote_heads(data->fd[0], &refs_tmp, 0, NULL, 0, NULL);
}
@ -670,20 +683,216 @@ static int fetch_refs_via_pack(struct transport *transport,
return (refs ? 0 : -1);
}
static int git_transport_push(struct transport *transport, int refspec_nr, const char **refspec, int flags)
static int refs_pushed(struct ref *ref)
{
for (; ref; ref = ref->next) {
switch(ref->status) {
case REF_STATUS_NONE:
case REF_STATUS_UPTODATE:
break;
default:
return 1;
}
}
return 0;
}
static void update_tracking_ref(struct remote *remote, struct ref *ref, int verbose)
{
struct refspec rs;
if (ref->status != REF_STATUS_OK && ref->status != REF_STATUS_UPTODATE)
return;
rs.src = ref->name;
rs.dst = NULL;
if (!remote_find_tracking(remote, &rs)) {
if (verbose)
fprintf(stderr, "updating local tracking ref '%s'\n", rs.dst);
if (ref->deletion) {
delete_ref(rs.dst, NULL, 0);
} else
update_ref("update by push", rs.dst,
ref->new_sha1, NULL, 0, 0);
free(rs.dst);
}
}
#define SUMMARY_WIDTH (2 * DEFAULT_ABBREV + 3)
static void print_ref_status(char flag, const char *summary, struct ref *to, struct ref *from, const char *msg)
{
fprintf(stderr, " %c %-*s ", flag, SUMMARY_WIDTH, summary);
if (from)
fprintf(stderr, "%s -> %s", prettify_ref(from), prettify_ref(to));
else
fputs(prettify_ref(to), stderr);
if (msg) {
fputs(" (", stderr);
fputs(msg, stderr);
fputc(')', stderr);
}
fputc('\n', stderr);
}
static const char *status_abbrev(unsigned char sha1[20])
{
return find_unique_abbrev(sha1, DEFAULT_ABBREV);
}
static void print_ok_ref_status(struct ref *ref)
{
if (ref->deletion)
print_ref_status('-', "[deleted]", ref, NULL, NULL);
else if (is_null_sha1(ref->old_sha1))
print_ref_status('*',
(!prefixcmp(ref->name, "refs/tags/") ? "[new tag]" :
"[new branch]"),
ref, ref->peer_ref, NULL);
else {
char quickref[84];
char type;
const char *msg;
strcpy(quickref, status_abbrev(ref->old_sha1));
if (ref->nonfastforward) {
strcat(quickref, "...");
type = '+';
msg = "forced update";
} else {
strcat(quickref, "..");
type = ' ';
msg = NULL;
}
strcat(quickref, status_abbrev(ref->new_sha1));
print_ref_status(type, quickref, ref, ref->peer_ref, msg);
}
}
static int print_one_push_status(struct ref *ref, const char *dest, int count)
{
if (!count)
fprintf(stderr, "To %s\n", dest);
switch(ref->status) {
case REF_STATUS_NONE:
print_ref_status('X', "[no match]", ref, NULL, NULL);
break;
case REF_STATUS_REJECT_NODELETE:
print_ref_status('!', "[rejected]", ref, NULL,
"remote does not support deleting refs");
break;
case REF_STATUS_UPTODATE:
print_ref_status('=', "[up to date]", ref,
ref->peer_ref, NULL);
break;
case REF_STATUS_REJECT_NONFASTFORWARD:
print_ref_status('!', "[rejected]", ref, ref->peer_ref,
"non-fast forward");
break;
case REF_STATUS_REMOTE_REJECT:
print_ref_status('!', "[remote rejected]", ref,
ref->deletion ? NULL : ref->peer_ref,
ref->remote_status);
break;
case REF_STATUS_EXPECTING_REPORT:
print_ref_status('!', "[remote failure]", ref,
ref->deletion ? NULL : ref->peer_ref,
"remote failed to report status");
break;
case REF_STATUS_OK:
print_ok_ref_status(ref);
break;
}
return 1;
}
static void print_push_status(const char *dest, struct ref *refs, int verbose)
{
struct ref *ref;
int n = 0;
if (verbose) {
for (ref = refs; ref; ref = ref->next)
if (ref->status == REF_STATUS_UPTODATE)
n += print_one_push_status(ref, dest, n);
}
for (ref = refs; ref; ref = ref->next)
if (ref->status == REF_STATUS_OK)
n += print_one_push_status(ref, dest, n);
for (ref = refs; ref; ref = ref->next) {
if (ref->status != REF_STATUS_NONE &&
ref->status != REF_STATUS_UPTODATE &&
ref->status != REF_STATUS_OK)
n += print_one_push_status(ref, dest, n);
}
}
static void verify_remote_names(int nr_heads, const char **heads)
{
int i;
for (i = 0; i < nr_heads; i++) {
const char *local = heads[i];
const char *remote = strrchr(heads[i], ':');
if (*local == '+')
local++;
/* A matching refspec is okay. */
if (remote == local && remote[1] == '\0')
continue;
remote = remote ? (remote + 1) : local;
switch (check_ref_format(remote)) {
case 0: /* ok */
case CHECK_REF_FORMAT_ONELEVEL:
/* ok but a single level -- that is fine for
* a match pattern.
*/
case CHECK_REF_FORMAT_WILDCARD:
/* ok but ends with a pattern-match character */
continue;
}
die("remote part of refspec is not a valid name in %s",
heads[i]);
}
}
static int git_transport_push(struct transport *transport, struct ref *remote_refs, int flags)
{
struct git_transport_data *data = transport->data;
struct send_pack_args args;
int ret;
if (!data->conn) {
struct ref *tmp_refs;
connect_setup(transport, 1, 0);
get_remote_heads(data->fd[0], &tmp_refs, 0, NULL, REF_NORMAL,
NULL);
}
args.receivepack = data->receivepack;
args.send_all = !!(flags & TRANSPORT_PUSH_ALL);
args.send_mirror = !!(flags & TRANSPORT_PUSH_MIRROR);
args.force_update = !!(flags & TRANSPORT_PUSH_FORCE);
args.use_thin_pack = data->thin;
args.verbose = !!(flags & TRANSPORT_PUSH_VERBOSE);
args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN);
return send_pack(&args, transport->url, transport->remote, refspec_nr, refspec);
ret = send_pack(&args, data->fd, data->conn, remote_refs,
&data->extra_have);
close(data->fd[1]);
close(data->fd[0]);
ret |= finish_connect(data->conn);
data->conn = NULL;
return ret;
}
static int disconnect_git(struct transport *transport)
@ -753,7 +962,7 @@ struct transport *transport_get(struct remote *remote, const char *url)
ret->set_option = set_git_option;
ret->get_refs_list = get_refs_via_connect;
ret->fetch = fetch_refs_via_pack;
ret->push = git_transport_push;
ret->push_refs = git_transport_push;
ret->disconnect = disconnect_git;
data->thin = 1;
@ -780,15 +989,53 @@ int transport_set_option(struct transport *transport,
int transport_push(struct transport *transport,
int refspec_nr, const char **refspec, int flags)
{
if (!transport->push)
return 1;
return transport->push(transport, refspec_nr, refspec, flags);
verify_remote_names(refspec_nr, refspec);
if (transport->push)
return transport->push(transport, refspec_nr, refspec, flags);
if (transport->push_refs) {
struct ref *remote_refs =
transport->get_refs_list(transport, 1);
struct ref **remote_tail;
struct ref *local_refs = get_local_heads();
int match_flags = MATCH_REFS_NONE;
int verbose = flags & TRANSPORT_PUSH_VERBOSE;
int ret;
if (flags & TRANSPORT_PUSH_ALL)
match_flags |= MATCH_REFS_ALL;
if (flags & TRANSPORT_PUSH_MIRROR)
match_flags |= MATCH_REFS_MIRROR;
remote_tail = &remote_refs;
while (*remote_tail)
remote_tail = &((*remote_tail)->next);
if (match_refs(local_refs, remote_refs, &remote_tail,
refspec_nr, refspec, match_flags)) {
return -1;
}
ret = transport->push_refs(transport, remote_refs, flags);
print_push_status(transport->url, remote_refs, verbose);
if (!(flags & TRANSPORT_PUSH_DRY_RUN)) {
struct ref *ref;
for (ref = remote_refs; ref; ref = ref->next)
update_tracking_ref(transport->remote, ref, verbose);
}
if (!ret && !refs_pushed(remote_refs))
fprintf(stderr, "Everything up-to-date\n");
return ret;
}
return 1;
}
const struct ref *transport_get_remote_refs(struct transport *transport)
{
if (!transport->remote_refs)
transport->remote_refs = transport->get_refs_list(transport);
transport->remote_refs = transport->get_refs_list(transport, 0);
return transport->remote_refs;
}

View File

@ -18,8 +18,9 @@ struct transport {
int (*set_option)(struct transport *connection, const char *name,
const char *value);
struct ref *(*get_refs_list)(struct transport *transport);
struct ref *(*get_refs_list)(struct transport *transport, int for_push);
int (*fetch)(struct transport *transport, int refs_nr, const struct ref **refs);
int (*push_refs)(struct transport *transport, struct ref *refs, int flags);
int (*push)(struct transport *connection, int refspec_nr, const char **refspec, int flags);
int (*disconnect)(struct transport *connection);