#include "commit.h"
#include "diff.h"
#include "revision.h"
-#include "quote.h"
#include "remote.h"
#include "string-list.h"
#include "thread-utils.h"
#include "sigchain.h"
+#include "argv-array.h"
+#include "refs.h"
+#include "transport-internal.h"
static int debug;
FILE *out;
unsigned fetch : 1,
import : 1,
+ bidi_import : 1,
export : 1,
option : 1,
push : 1,
connect : 1,
- no_disconnect_req : 1;
+ signed_tags : 1,
+ check_connectivity : 1,
+ no_disconnect_req : 1,
+ no_private_update : 1;
char *export_marks;
char *import_marks;
/* These go from remote name (as in "list") to private name */
{
if (debug)
fprintf(stderr, "Debug: Remote helper: -> %s", buffer->buf);
- if (write_in_full(helper->helper->in, buffer->buf, buffer->len)
- != buffer->len)
+ if (write_in_full(helper->helper->in, buffer->buf, buffer->len) < 0)
die_errno("Full write to remote helper failed");
}
-static int recvline_fh(FILE *helper, struct strbuf *buffer)
+static int recvline_fh(FILE *helper, struct strbuf *buffer, const char *name)
{
strbuf_reset(buffer);
if (debug)
fprintf(stderr, "Debug: Remote helper: Waiting...\n");
- if (strbuf_getline(buffer, helper, '\n') == EOF) {
+ if (strbuf_getline(buffer, helper) == EOF) {
if (debug)
fprintf(stderr, "Debug: Remote helper quit.\n");
- exit(128);
+ return 1;
}
if (debug)
static int recvline(struct helper_data *helper, struct strbuf *buffer)
{
- return recvline_fh(helper->out, buffer);
-}
-
-static void xchgline(struct helper_data *helper, struct strbuf *buffer)
-{
- sendline(helper, buffer);
- recvline(helper, buffer);
+ return recvline_fh(helper->out, buffer, helper->name);
}
static void write_constant(int fd, const char *str)
{
if (debug)
fprintf(stderr, "Debug: Remote helper: -> %s", str);
- if (write_in_full(fd, str, strlen(str)) != strlen(str))
+ if (write_in_full(fd, str, strlen(str)) < 0)
die_errno("Full write to remote helper failed");
}
free(data);
}
+static void standard_options(struct transport *t);
+
static struct child_process *get_helper(struct transport *transport)
{
struct helper_data *data = transport->data;
int refspec_alloc = 0;
int duped;
int code;
- char git_dir_buf[sizeof(GIT_DIR_ENVIRONMENT) + PATH_MAX + 1];
- const char *helper_env[] = {
- git_dir_buf,
- NULL
- };
-
if (data->helper)
return data->helper;
- helper = xcalloc(1, sizeof(*helper));
+ helper = xmalloc(sizeof(*helper));
+ child_process_init(helper);
helper->in = -1;
helper->out = -1;
helper->err = 0;
- helper->argv = xcalloc(4, sizeof(*helper->argv));
- strbuf_addf(&buf, "git-remote-%s", data->name);
- helper->argv[0] = strbuf_detach(&buf, NULL);
- helper->argv[1] = transport->remote->name;
- helper->argv[2] = remove_ext_force(transport->url);
+ argv_array_pushf(&helper->args, "git-remote-%s", data->name);
+ argv_array_push(&helper->args, transport->remote->name);
+ argv_array_push(&helper->args, remove_ext_force(transport->url));
helper->git_cmd = 0;
helper->silent_exec_failure = 1;
- snprintf(git_dir_buf, sizeof(git_dir_buf), "%s=%s", GIT_DIR_ENVIRONMENT, get_git_dir());
- helper->env = helper_env;
+ if (have_git_dir())
+ argv_array_pushf(&helper->env_array, "%s=%s",
+ GIT_DIR_ENVIRONMENT, get_git_dir());
code = start_command(helper);
if (code < 0 && errno == ENOENT)
data->no_disconnect_req = 0;
/*
- * Open the output as FILE* so strbuf_getline() can be used.
+ * Open the output as FILE* so strbuf_getline_*() family of
+ * functions can be used.
* Do this with duped fd because fclose() will close the fd,
* and stuff like taking over will require the fd to remain.
*/
write_constant(helper->in, "capabilities\n");
while (1) {
- const char *capname;
+ const char *capname, *arg;
int mandatory = 0;
- recvline(data, &buf);
+ if (recvline(data, &buf))
+ exit(128);
if (!*buf.buf)
break;
data->push = 1;
else if (!strcmp(capname, "import"))
data->import = 1;
+ else if (!strcmp(capname, "bidi-import"))
+ data->bidi_import = 1;
else if (!strcmp(capname, "export"))
data->export = 1;
- else if (!data->refspecs && !prefixcmp(capname, "refspec ")) {
+ else if (!strcmp(capname, "check-connectivity"))
+ data->check_connectivity = 1;
+ else if (!data->refspecs && skip_prefix(capname, "refspec ", &arg)) {
ALLOC_GROW(refspecs,
refspec_nr + 1,
refspec_alloc);
- refspecs[refspec_nr++] = xstrdup(capname + strlen("refspec "));
+ refspecs[refspec_nr++] = xstrdup(arg);
} else if (!strcmp(capname, "connect")) {
data->connect = 1;
- } else if (!prefixcmp(capname, "export-marks ")) {
- struct strbuf arg = STRBUF_INIT;
- strbuf_addstr(&arg, "--export-marks=");
- strbuf_addstr(&arg, capname + strlen("export-marks "));
- data->export_marks = strbuf_detach(&arg, NULL);
- } else if (!prefixcmp(capname, "import-marks")) {
- struct strbuf arg = STRBUF_INIT;
- strbuf_addstr(&arg, "--import-marks=");
- strbuf_addstr(&arg, capname + strlen("import-marks "));
- data->import_marks = strbuf_detach(&arg, NULL);
+ } else if (!strcmp(capname, "signed-tags")) {
+ data->signed_tags = 1;
+ } else if (skip_prefix(capname, "export-marks ", &arg)) {
+ data->export_marks = xstrdup(arg);
+ } else if (skip_prefix(capname, "import-marks ", &arg)) {
+ data->import_marks = xstrdup(arg);
+ } else if (starts_with(capname, "no-private-update")) {
+ data->no_private_update = 1;
} else if (mandatory) {
die("Unknown mandatory capability %s. This remote "
- "helper probably needs newer version of Git.\n",
+ "helper probably needs newer version of Git.",
capname);
}
}
int i;
data->refspec_nr = refspec_nr;
data->refspecs = parse_fetch_refspec(refspec_nr, refspecs);
- for (i = 0; i < refspec_nr; i++) {
+ for (i = 0; i < refspec_nr; i++)
free((char *)refspecs[i]);
- }
free(refspecs);
+ } else if (data->import || data->bidi_import || data->export) {
+ warning("This remote helper should implement refspec capability.");
}
strbuf_release(&buf);
if (debug)
fprintf(stderr, "Debug: Capabilities complete.\n");
+ standard_options(transport);
return data->helper;
}
close(data->helper->out);
fclose(data->out);
res = finish_command(data->helper);
- free((char *)data->helper->argv[0]);
- free(data->helper->argv);
- free(data->helper);
- data->helper = NULL;
+ FREE_AND_NULL(data->helper);
}
return res;
}
TRANS_OPT_THIN,
TRANS_OPT_KEEP
};
+
static const char *boolean_options[] = {
TRANS_OPT_THIN,
TRANS_OPT_KEEP,
- TRANS_OPT_FOLLOWTAGS
+ TRANS_OPT_FOLLOWTAGS,
+ TRANS_OPT_DEEPEN_RELATIVE
};
+static int strbuf_set_helper_option(struct helper_data *data,
+ struct strbuf *buf)
+{
+ int ret;
+
+ sendline(data, buf);
+ if (recvline(data, buf))
+ exit(128);
+
+ if (!strcmp(buf->buf, "ok"))
+ ret = 0;
+ else if (starts_with(buf->buf, "error"))
+ ret = -1;
+ else if (!strcmp(buf->buf, "unsupported"))
+ ret = 1;
+ else {
+ warning("%s unexpectedly said: '%s'", data->name, buf->buf);
+ ret = 1;
+ }
+ return ret;
+}
+
+static int string_list_set_helper_option(struct helper_data *data,
+ const char *name,
+ struct string_list *list)
+{
+ struct strbuf buf = STRBUF_INIT;
+ int i, ret = 0;
+
+ for (i = 0; i < list->nr; i++) {
+ strbuf_addf(&buf, "option %s ", name);
+ quote_c_style(list->items[i].string, &buf, NULL, 0);
+ strbuf_addch(&buf, '\n');
+
+ if ((ret = strbuf_set_helper_option(data, &buf)))
+ break;
+ strbuf_reset(&buf);
+ }
+ strbuf_release(&buf);
+ return ret;
+}
+
static int set_helper_option(struct transport *transport,
const char *name, const char *value)
{
if (!data->option)
return 1;
+ if (!strcmp(name, "deepen-not"))
+ return string_list_set_helper_option(data, name,
+ (struct string_list *)value);
+
for (i = 0; i < ARRAY_SIZE(unsupported_options); i++) {
if (!strcmp(name, unsupported_options[i]))
return 1;
quote_c_style(value, &buf, NULL, 0);
strbuf_addch(&buf, '\n');
- xchgline(data, &buf);
-
- if (!strcmp(buf.buf, "ok"))
- ret = 0;
- else if (!prefixcmp(buf.buf, "error")) {
- ret = -1;
- } else if (!strcmp(buf.buf, "unsupported"))
- ret = 1;
- else {
- warning("%s unexpectedly said: '%s'", data->name, buf.buf);
- ret = 1;
- }
+ ret = strbuf_set_helper_option(data, &buf);
strbuf_release(&buf);
return ret;
}
static void standard_options(struct transport *t)
{
char buf[16];
- int n;
int v = t->verbose;
set_helper_option(t, "progress", t->progress ? "true" : "false");
- n = snprintf(buf, sizeof(buf), "%d", v + 1);
- if (n >= sizeof(buf))
- die("impossibly large verbosity value");
+ xsnprintf(buf, sizeof(buf), "%d", v + 1);
set_helper_option(t, "verbosity", buf);
+
+ switch (t->family) {
+ case TRANSPORT_FAMILY_ALL:
+ /*
+ * this is already the default,
+ * do not break old remote helpers by setting "all" here
+ */
+ break;
+ case TRANSPORT_FAMILY_IPV4:
+ set_helper_option(t, "family", "ipv4");
+ break;
+ case TRANSPORT_FAMILY_IPV6:
+ set_helper_option(t, "family", "ipv6");
+ break;
+ }
}
static int release_helper(struct transport *transport)
int i;
struct strbuf buf = STRBUF_INIT;
- standard_options(transport);
-
for (i = 0; i < nr_heads; i++) {
const struct ref *posn = to_fetch[i];
if (posn->status & REF_STATUS_UPTODATE)
continue;
strbuf_addf(&buf, "fetch %s %s\n",
- sha1_to_hex(posn->old_sha1), posn->name);
+ oid_to_hex(&posn->old_oid),
+ posn->symref ? posn->symref : posn->name);
}
strbuf_addch(&buf, '\n');
sendline(data, &buf);
while (1) {
- recvline(data, &buf);
+ if (recvline(data, &buf))
+ exit(128);
- if (!prefixcmp(buf.buf, "lock ")) {
+ if (starts_with(buf.buf, "lock ")) {
const char *name = buf.buf + 5;
if (transport->pack_lockfile)
warning("%s also locked %s", data->name, name);
else
transport->pack_lockfile = xstrdup(name);
}
+ else if (data->check_connectivity &&
+ data->transport_options.check_self_contained_and_connected &&
+ !strcmp(buf.buf, "connectivity-ok"))
+ data->transport_options.self_contained_and_connected = 1;
else if (!buf.len)
break;
else
static int get_importer(struct transport *transport, struct child_process *fastimport)
{
struct child_process *helper = get_helper(transport);
- memset(fastimport, 0, sizeof(*fastimport));
+ struct helper_data *data = transport->data;
+ int cat_blob_fd, code;
+ child_process_init(fastimport);
fastimport->in = helper->out;
- fastimport->argv = xcalloc(5, sizeof(*fastimport->argv));
- fastimport->argv[0] = "fast-import";
- fastimport->argv[1] = "--quiet";
+ argv_array_push(&fastimport->args, "fast-import");
+ argv_array_push(&fastimport->args, "--allow-unsafe-features");
+ argv_array_push(&fastimport->args, debug ? "--stats" : "--quiet");
+ if (data->bidi_import) {
+ cat_blob_fd = xdup(helper->in);
+ argv_array_pushf(&fastimport->args, "--cat-blob-fd=%d", cat_blob_fd);
+ }
fastimport->git_cmd = 1;
- return start_command(fastimport);
+
+ code = start_command(fastimport);
+ return code;
}
static int get_exporter(struct transport *transport,
{
struct helper_data *data = transport->data;
struct child_process *helper = get_helper(transport);
- int argc = 0, i;
- memset(fastexport, 0, sizeof(*fastexport));
+ int i;
+
+ child_process_init(fastexport);
/* we need to duplicate helper->in because we want to use it after
* fastexport is done with it. */
fastexport->out = dup(helper->in);
- fastexport->argv = xcalloc(5 + revlist_args->nr, sizeof(*fastexport->argv));
- fastexport->argv[argc++] = "fast-export";
- fastexport->argv[argc++] = "--use-done-feature";
+ argv_array_push(&fastexport->args, "fast-export");
+ argv_array_push(&fastexport->args, "--use-done-feature");
+ argv_array_push(&fastexport->args, data->signed_tags ?
+ "--signed-tags=verbatim" : "--signed-tags=warn-strip");
if (data->export_marks)
- fastexport->argv[argc++] = data->export_marks;
+ argv_array_pushf(&fastexport->args, "--export-marks=%s.tmp", data->export_marks);
if (data->import_marks)
- fastexport->argv[argc++] = data->import_marks;
+ argv_array_pushf(&fastexport->args, "--import-marks=%s", data->import_marks);
for (i = 0; i < revlist_args->nr; i++)
- fastexport->argv[argc++] = revlist_args->items[i].string;
+ argv_array_push(&fastexport->args, revlist_args->items[i].string);
fastexport->git_cmd = 1;
return start_command(fastexport);
if (posn->status & REF_STATUS_UPTODATE)
continue;
- strbuf_addf(&buf, "import %s\n", posn->name);
+ strbuf_addf(&buf, "import %s\n",
+ posn->symref ? posn->symref : posn->name);
sendline(data, &buf);
strbuf_reset(&buf);
}
write_constant(data->helper->in, "\n");
+ /*
+ * remote-helpers that advertise the bidi-import capability are required to
+ * buffer the complete batch of import commands until this newline before
+ * sending data to fast-import.
+ * These helpers read back data from fast-import on their stdin, which could
+ * be mixed with import commands, otherwise.
+ */
if (finish_command(&fastimport))
die("Error while running fast-import");
- free(fastimport.argv);
- fastimport.argv = NULL;
+ /*
+ * The fast-import stream of a remote helper that advertises
+ * the "refspec" capability writes to the refs named after the
+ * right hand side of the first refspec matching each ref we
+ * were fetching.
+ *
+ * (If no "refspec" capability was specified, for historical
+ * reasons we default to the equivalent of *:*.)
+ *
+ * Store the result in to_fetch[i].old_sha1. Callers such
+ * as "git fetch" can use the value to write feedback to the
+ * terminal, populate FETCH_HEAD, and determine what new value
+ * should be written to peer_ref if the update is a
+ * fast-forward or this is a forced update.
+ */
for (i = 0; i < nr_heads; i++) {
- char *private;
+ char *private, *name;
posn = to_fetch[i];
if (posn->status & REF_STATUS_UPTODATE)
continue;
+ name = posn->symref ? posn->symref : posn->name;
if (data->refspecs)
- private = apply_refspecs(data->refspecs, data->refspec_nr, posn->name);
+ private = apply_refspecs(data->refspecs, data->refspec_nr, name);
else
- private = xstrdup(posn->name);
+ private = xstrdup(name);
if (private) {
- read_ref(private, posn->old_sha1);
+ if (read_ref(private, &posn->old_oid) < 0)
+ die("Could not read ref %s", private);
free(private);
}
}
goto exit;
sendline(data, &cmdbuf);
- recvline_fh(input, &cmdbuf);
+ if (recvline_fh(input, &cmdbuf, name))
+ exit(128);
+
if (!strcmp(cmdbuf.buf, "")) {
data->no_disconnect_req = 1;
if (debug)
cmdbuf.buf);
exit:
+ strbuf_release(&cmdbuf);
fclose(input);
return ret;
}
if (process_connect(transport, 0)) {
do_take_over(transport);
- return transport->fetch(transport, nr_heads, to_fetch);
+ return transport->vtable->fetch(transport, nr_heads, to_fetch);
}
count = 0;
if (!count)
return 0;
+ if (data->check_connectivity &&
+ data->transport_options.check_self_contained_and_connected)
+ set_helper_option(transport, "check-connectivity", "true");
+
+ if (transport->cloning)
+ set_helper_option(transport, "cloning", "true");
+
+ if (data->transport_options.update_shallow)
+ set_helper_option(transport, "update-shallow", "true");
+
if (data->fetch)
return fetch_with_fetch(transport, nr_heads, to_fetch);
return -1;
}
-static void push_update_ref_status(struct strbuf *buf,
+static int push_update_ref_status(struct strbuf *buf,
struct ref **ref,
struct ref *remote_refs)
{
char *refname, *msg;
- int status;
+ int status, forced = 0;
- if (!prefixcmp(buf->buf, "ok ")) {
+ if (starts_with(buf->buf, "ok ")) {
status = REF_STATUS_OK;
refname = buf->buf + 3;
- } else if (!prefixcmp(buf->buf, "error ")) {
+ } else if (starts_with(buf->buf, "error ")) {
status = REF_STATUS_REMOTE_REJECT;
refname = buf->buf + 6;
} else
- die("expected ok/error, helper said '%s'\n", buf->buf);
+ die("expected ok/error, helper said '%s'", buf->buf);
msg = strchr(refname, ' ');
if (msg) {
if (!strcmp(msg, "no match")) {
status = REF_STATUS_NONE;
- free(msg);
- msg = NULL;
+ FREE_AND_NULL(msg);
}
else if (!strcmp(msg, "up to date")) {
status = REF_STATUS_UPTODATE;
- free(msg);
- msg = NULL;
+ FREE_AND_NULL(msg);
}
else if (!strcmp(msg, "non-fast forward")) {
status = REF_STATUS_REJECT_NONFASTFORWARD;
- free(msg);
- msg = NULL;
+ FREE_AND_NULL(msg);
+ }
+ else if (!strcmp(msg, "already exists")) {
+ status = REF_STATUS_REJECT_ALREADY_EXISTS;
+ FREE_AND_NULL(msg);
+ }
+ else if (!strcmp(msg, "fetch first")) {
+ status = REF_STATUS_REJECT_FETCH_FIRST;
+ FREE_AND_NULL(msg);
+ }
+ else if (!strcmp(msg, "needs force")) {
+ status = REF_STATUS_REJECT_NEEDS_FORCE;
+ FREE_AND_NULL(msg);
+ }
+ else if (!strcmp(msg, "stale info")) {
+ status = REF_STATUS_REJECT_STALE;
+ FREE_AND_NULL(msg);
+ }
+ else if (!strcmp(msg, "forced update")) {
+ forced = 1;
+ FREE_AND_NULL(msg);
}
}
*ref = find_ref_by_name(remote_refs, refname);
if (!*ref) {
warning("helper reported unexpected status of %s", refname);
- return;
+ return 1;
}
if ((*ref)->status != REF_STATUS_NONE) {
* status reported by the remote helper if the latter is 'no match'.
*/
if (status == REF_STATUS_NONE)
- return;
+ return 1;
}
(*ref)->status = status;
+ (*ref)->forced_update |= forced;
(*ref)->remote_status = msg;
+ return !(status == REF_STATUS_OK);
}
-static void push_update_refs_status(struct helper_data *data,
- struct ref *remote_refs)
+static int push_update_refs_status(struct helper_data *data,
+ struct ref *remote_refs,
+ int flags)
{
struct strbuf buf = STRBUF_INIT;
struct ref *ref = remote_refs;
+ int ret = 0;
+
for (;;) {
- recvline(data, &buf);
+ char *private;
+
+ if (recvline(data, &buf)) {
+ ret = 1;
+ break;
+ }
+
if (!buf.len)
break;
- push_update_ref_status(&buf, &ref, remote_refs);
+ if (push_update_ref_status(&buf, &ref, remote_refs))
+ continue;
+
+ if (flags & TRANSPORT_PUSH_DRY_RUN || !data->refspecs || data->no_private_update)
+ continue;
+
+ /* propagate back the update to the remote namespace */
+ private = apply_refspecs(data->refspecs, data->refspec_nr, ref->name);
+ if (!private)
+ continue;
+ update_ref("update by helper", private, &ref->new_oid, NULL,
+ 0, 0);
+ free(private);
}
strbuf_release(&buf);
+ return ret;
+}
+
+static void set_common_push_options(struct transport *transport,
+ const char *name, int flags)
+{
+ if (flags & TRANSPORT_PUSH_DRY_RUN) {
+ if (set_helper_option(transport, "dry-run", "true") != 0)
+ die("helper %s does not support dry-run", name);
+ } else if (flags & TRANSPORT_PUSH_CERT_ALWAYS) {
+ if (set_helper_option(transport, TRANS_OPT_PUSH_CERT, "true") != 0)
+ die("helper %s does not support --signed", name);
+ } else if (flags & TRANSPORT_PUSH_CERT_IF_ASKED) {
+ if (set_helper_option(transport, TRANS_OPT_PUSH_CERT, "if-asked") != 0)
+ die("helper %s does not support --signed=if-asked", name);
+ }
+
+ if (flags & TRANSPORT_PUSH_OPTIONS) {
+ struct string_list_item *item;
+ for_each_string_list_item(item, transport->push_options)
+ if (set_helper_option(transport, "push-option", item->string) != 0)
+ die("helper %s does not support 'push-option'", name);
+ }
}
static int push_refs_with_push(struct transport *transport,
- struct ref *remote_refs, int flags)
+ struct ref *remote_refs, int flags)
{
int force_all = flags & TRANSPORT_PUSH_FORCE;
int mirror = flags & TRANSPORT_PUSH_MIRROR;
struct helper_data *data = transport->data;
struct strbuf buf = STRBUF_INIT;
struct ref *ref;
+ struct string_list cas_options = STRING_LIST_INIT_DUP;
+ struct string_list_item *cas_option;
get_helper(transport);
if (!data->push)
/* Check for statuses set by set_ref_status_for_push() */
switch (ref->status) {
case REF_STATUS_REJECT_NONFASTFORWARD:
+ case REF_STATUS_REJECT_STALE:
+ case REF_STATUS_REJECT_ALREADY_EXISTS:
case REF_STATUS_UPTODATE:
continue;
default:
if (ref->peer_ref)
strbuf_addstr(&buf, ref->peer_ref->name);
else
- strbuf_addstr(&buf, sha1_to_hex(ref->new_sha1));
+ strbuf_addstr(&buf, oid_to_hex(&ref->new_oid));
}
strbuf_addch(&buf, ':');
strbuf_addstr(&buf, ref->name);
strbuf_addch(&buf, '\n');
+
+ /*
+ * The "--force-with-lease" options without explicit
+ * values to expect have already been expanded into
+ * the ref->old_oid_expect[] field; we can ignore
+ * transport->smart_options->cas altogether and instead
+ * can enumerate them from the refs.
+ */
+ if (ref->expect_old_sha1) {
+ struct strbuf cas = STRBUF_INIT;
+ strbuf_addf(&cas, "%s:%s",
+ ref->name, oid_to_hex(&ref->old_oid_expect));
+ string_list_append_nodup(&cas_options,
+ strbuf_detach(&cas, NULL));
+ }
}
- if (buf.len == 0)
+ if (buf.len == 0) {
+ string_list_clear(&cas_options, 0);
return 0;
-
- standard_options(transport);
-
- if (flags & TRANSPORT_PUSH_DRY_RUN) {
- if (set_helper_option(transport, "dry-run", "true") != 0)
- die("helper %s does not support dry-run", data->name);
}
+ for_each_string_list_item(cas_option, &cas_options)
+ set_helper_option(transport, "cas", cas_option->string);
+ set_common_push_options(transport, data->name, flags);
+
strbuf_addch(&buf, '\n');
sendline(data, &buf);
strbuf_release(&buf);
+ string_list_clear(&cas_options, 0);
- push_update_refs_status(data, remote_refs);
- return 0;
+ return push_update_refs_status(data, remote_refs, flags);
}
static int push_refs_with_export(struct transport *transport,
struct ref *ref;
struct child_process *helper, exporter;
struct helper_data *data = transport->data;
- struct string_list revlist_args = STRING_LIST_INIT_NODUP;
+ struct string_list revlist_args = STRING_LIST_INIT_DUP;
struct strbuf buf = STRBUF_INIT;
+ if (!data->refspecs)
+ die("remote-helper doesn't support push; refspec needed");
+
+ set_common_push_options(transport, data->name, flags);
+ if (flags & TRANSPORT_PUSH_FORCE) {
+ if (set_helper_option(transport, "force", "true") != 0)
+ warning("helper %s does not support 'force'", data->name);
+ }
+
helper = get_helper(transport);
write_constant(helper->in, "export\n");
- strbuf_reset(&buf);
-
for (ref = remote_refs; ref; ref = ref->next) {
char *private;
- unsigned char sha1[20];
+ struct object_id oid;
- if (!data->refspecs)
- continue;
private = apply_refspecs(data->refspecs, data->refspec_nr, ref->name);
- if (private && !get_sha1(private, sha1)) {
+ if (private && !get_oid(private, &oid)) {
strbuf_addf(&buf, "^%s", private);
- string_list_append(&revlist_args, strbuf_detach(&buf, NULL));
+ string_list_append_nodup(&revlist_args,
+ strbuf_detach(&buf, NULL));
+ oidcpy(&ref->old_oid, &oid);
}
free(private);
- if (ref->deletion) {
- die("remote-helpers do not support ref deletion");
+ if (ref->peer_ref) {
+ if (strcmp(ref->name, ref->peer_ref->name)) {
+ if (!ref->deletion) {
+ const char *name;
+ int flag;
+
+ /* Follow symbolic refs (mainly for HEAD). */
+ name = resolve_ref_unsafe(ref->peer_ref->name,
+ RESOLVE_REF_READING,
+ &oid, &flag);
+ if (!name || !(flag & REF_ISSYMREF))
+ name = ref->peer_ref->name;
+
+ strbuf_addf(&buf, "%s:%s", name, ref->name);
+ } else
+ strbuf_addf(&buf, ":%s", ref->name);
+
+ string_list_append(&revlist_args, "--refspec");
+ string_list_append(&revlist_args, buf.buf);
+ strbuf_release(&buf);
+ }
+ if (!ref->deletion)
+ string_list_append(&revlist_args, ref->peer_ref->name);
}
-
- if (ref->peer_ref)
- string_list_append(&revlist_args, ref->peer_ref->name);
-
}
if (get_exporter(transport, &exporter, &revlist_args))
die("Couldn't run fast-export");
+ string_list_clear(&revlist_args, 1);
+
if (finish_command(&exporter))
die("Error while running fast-export");
- push_update_refs_status(data, remote_refs);
+ if (push_update_refs_status(data, remote_refs, flags))
+ return 1;
+
+ if (data->export_marks) {
+ strbuf_addf(&buf, "%s.tmp", data->export_marks);
+ rename(buf.buf, data->export_marks);
+ strbuf_release(&buf);
+ }
+
return 0;
}
if (process_connect(transport, 1)) {
do_take_over(transport);
- return transport->push_refs(transport, remote_refs, flags);
+ return transport->vtable->push_refs(transport, remote_refs, flags);
}
if (!remote_refs) {
if (process_connect(transport, for_push)) {
do_take_over(transport);
- return transport->get_refs_list(transport, for_push);
+ return transport->vtable->get_refs_list(transport, for_push);
}
if (data->push && for_push)
while (1) {
char *eov, *eon;
- recvline(data, &buf);
+ if (recvline(data, &buf))
+ exit(128);
if (!*buf.buf)
break;
if (buf.buf[0] == '@')
(*tail)->symref = xstrdup(buf.buf + 1);
else if (buf.buf[0] != '?')
- get_sha1_hex(buf.buf, (*tail)->old_sha1);
+ get_oid_hex(buf.buf, &(*tail)->old_oid);
if (eon) {
if (has_attribute(eon + 1, "unchanged")) {
(*tail)->status |= REF_STATUS_UPTODATE;
- read_ref((*tail)->name, (*tail)->old_sha1);
+ if (read_ref((*tail)->name, &(*tail)->old_oid) < 0)
+ die(_("Could not read ref %s"),
+ (*tail)->name);
}
}
tail = &((*tail)->next);
return ret;
}
+static struct transport_vtable vtable = {
+ set_helper_option,
+ get_refs_list,
+ fetch,
+ push_refs,
+ connect_helper,
+ release_helper
+};
+
int transport_helper_init(struct transport *transport, const char *name)
{
- struct helper_data *data = xcalloc(sizeof(*data), 1);
+ struct helper_data *data = xcalloc(1, sizeof(*data));
data->name = name;
+ transport_check_allowed(name);
+
if (getenv("GIT_TRANSPORT_HELPER_DEBUG"))
debug = 1;
transport->data = data;
- transport->set_option = set_helper_option;
- transport->get_refs_list = get_refs_list;
- transport->fetch = fetch;
- transport->push_refs = push_refs;
- transport->disconnect = release_helper;
- transport->connect = connect_helper;
+ transport->vtable = &vtable;
transport->smart_options = &(data->transport_options);
return 0;
}
#define PBUFFERSIZE 8192
/* Print bidirectional transfer loop debug message. */
+__attribute__((format (printf, 1, 2)))
static void transfer_debug(const char *fmt, ...)
{
+ /*
+ * NEEDSWORK: This function is sometimes used from multiple threads, and
+ * we end up using debug_enabled racily. That "should not matter" since
+ * we always write the same value, but it's still wrong. This function
+ * is listed in .tsan-suppressions for the time being.
+ */
+
va_list args;
char msgbuf[PBUFFERSIZE];
static int debug_enabled = -1;
}
/* Stream state: More data may be coming in this direction. */
-#define SSTATE_TRANSFERING 0
+#define SSTATE_TRANSFERRING 0
/*
* Stream state: No more data coming in this direction, flushing rest of
* data.
/* Stream state: Transfer in this direction finished. */
#define SSTATE_FINISHED 2
-#define STATE_NEEDS_READING(state) ((state) <= SSTATE_TRANSFERING)
+#define STATE_NEEDS_READING(state) ((state) <= SSTATE_TRANSFERRING)
#define STATE_NEEDS_WRITING(state) ((state) <= SSTATE_FLUSHING)
#define STATE_NEEDS_CLOSING(state) ((state) == SSTATE_FLUSHING)
int src_is_sock;
/* Is destination socket? */
int dest_is_sock;
- /* Transfer state (TRANSFERING/FLUSHING/FINISHED) */
+ /* Transfer state (TRANSFERRING/FLUSHING/FINISHED) */
int state;
/* Buffer. */
char buf[BUFFERSIZE];
}
/*
- * Tries to read read data from source into buffer. If buffer is full,
+ * Tries to read data from source into buffer. If buffer is full,
* no data is read. Returns 0 on success, -1 on error.
*/
static int udt_do_read(struct unidirectional_transfer *t)
bytes = read(t->src, t->buf + t->bufuse, BUFFERSIZE - t->bufuse);
if (bytes < 0 && errno != EWOULDBLOCK && errno != EAGAIN &&
errno != EINTR) {
- error("read(%s) failed: %s", t->src_name, strerror(errno));
+ error_errno("read(%s) failed", t->src_name);
return -1;
} else if (bytes == 0) {
transfer_debug("%s EOF (with %i bytes in buffer)",
- t->src_name, t->bufuse);
+ t->src_name, (int)t->bufuse);
t->state = SSTATE_FLUSHING;
} else if (bytes > 0) {
t->bufuse += bytes;
return 0; /* Nothing to write. */
transfer_debug("%s is writable", t->dest_name);
- bytes = write(t->dest, t->buf, t->bufuse);
- if (bytes < 0 && errno != EWOULDBLOCK && errno != EAGAIN &&
- errno != EINTR) {
- error("write(%s) failed: %s", t->dest_name, strerror(errno));
+ bytes = xwrite(t->dest, t->buf, t->bufuse);
+ if (bytes < 0 && errno != EWOULDBLOCK) {
+ error_errno("write(%s) failed", t->dest_name);
return -1;
} else if (bytes > 0) {
t->bufuse -= bytes;
#ifndef NO_PTHREADS
/*
- * Join thread, with apporiate errors on failure. Name is name for the
+ * Join thread, with appropriate errors on failure. Name is name for the
* thread (for error messages). Returns 0 on success, 1 on failure.
*/
static int tloop_join(pthread_t thread, const char *name)
}
/*
- * Join process, with apporiate errors on failure. Name is name for the
+ * Join process, with appropriate errors on failure. Name is name for the
* process (for error messages). Returns 0 on success, 1 on failure.
*/
static int tloop_join(pid_t pid, const char *name)
{
int tret;
if (waitpid(pid, &tret, 0) < 0) {
- error("%s process failed to wait: %s", name, strerror(errno));
+ error_errno("%s process failed to wait", name);
return 1;
}
if (!WIFEXITED(tret) || WEXITSTATUS(tret)) {
state.ptg.dest = 1;
state.ptg.src_is_sock = (input == output);
state.ptg.dest_is_sock = 0;
- state.ptg.state = SSTATE_TRANSFERING;
+ state.ptg.state = SSTATE_TRANSFERRING;
state.ptg.bufuse = 0;
state.ptg.src_name = "remote input";
state.ptg.dest_name = "stdout";
state.gtp.dest = output;
state.gtp.src_is_sock = 0;
state.gtp.dest_is_sock = (input == output);
- state.gtp.state = SSTATE_TRANSFERING;
+ state.gtp.state = SSTATE_TRANSFERRING;
state.gtp.bufuse = 0;
state.gtp.src_name = "stdin";
state.gtp.dest_name = "remote output";
projects / platform / upstream / git.git / blobdiff