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/*
* "git push"
*/
#include "cache.h"
#include "refs.h"
#include "run-command.h"
#include "builtin.h"
#include "remote.h"
#include "transport.h"
#include "parse-options.h"
static const char * const push_usage[] = {
"git push [<options>] [<repository> <refspec>...]",
NULL,
};
static int thin;
static int deleterefs;
static const char *receivepack;
static const char **refspec;
static int refspec_nr;
static void add_refspec(const char *ref)
{
int nr = refspec_nr + 1;
refspec = xrealloc(refspec, nr * sizeof(char *));
refspec[nr-1] = ref;
refspec_nr = nr;
}
static void set_refspecs(const char **refs, int nr)
{
int i;
for (i = 0; i < nr; i++) {
const char *ref = refs[i];
if (!strcmp("tag", ref)) {
char *tag;
int len;
if (nr <= ++i)
die("tag shorthand without <tag>");
len = strlen(refs[i]) + 11;
if (deleterefs) {
tag = xmalloc(len+1);
strcpy(tag, ":refs/tags/");
} else {
tag = xmalloc(len);
strcpy(tag, "refs/tags/");
}
strcat(tag, refs[i]);
ref = tag;
} else if (deleterefs && !strchr(ref, ':')) {
char *delref;
int len = strlen(ref)+1;
delref = xmalloc(len+1);
strcpy(delref, ":");
strcat(delref, ref);
ref = delref;
} else if (deleterefs)
die("--delete only accepts plain target ref names");
add_refspec(ref);
}
}
static void setup_push_tracking(void)
{
struct strbuf refspec = STRBUF_INIT;
struct branch *branch = branch_get(NULL);
if (!branch)
die("You are not currently on a branch.");
if (!branch->merge_nr || !branch->merge)
die("The current branch %s is not tracking anything.",
branch->name);
if (branch->merge_nr != 1)
die("The current branch %s is tracking multiple branches, "
"refusing to push.", branch->name);
strbuf_addf(&refspec, "%s:%s", branch->name, branch->merge[0]->src);
add_refspec(refspec.buf);
}
static void setup_default_push_refspecs(void)
{
switch (push_default) {
default:
case PUSH_DEFAULT_MATCHING:
add_refspec(":");
break;
case PUSH_DEFAULT_TRACKING:
setup_push_tracking();
break;
case PUSH_DEFAULT_CURRENT:
add_refspec("HEAD");
break;
case PUSH_DEFAULT_NOTHING:
die("You didn't specify any refspecs to push, and "
"push.default is \"nothing\".");
break;
}
}
static int push_with_options(struct transport *transport, int flags)
{
int err;
int nonfastforward;
if (receivepack)
transport_set_option(transport,
TRANS_OPT_RECEIVEPACK, receivepack);
if (thin)
transport_set_option(transport, TRANS_OPT_THIN, "yes");
if (flags & TRANSPORT_PUSH_VERBOSE)
fprintf(stderr, "Pushing to %s\n", transport->url);
err = transport_push(transport, refspec_nr, refspec, flags,
&nonfastforward);
if (err != 0)
error("failed to push some refs to '%s'", transport->url);
err |= transport_disconnect(transport);
if (!err)
return 0;
if (nonfastforward && advice_push_nonfastforward) {
printf("To prevent you from losing history, non-fast-forward updates were rejected\n"
"Merge the remote changes before pushing again. See the 'Note about\n"
"fast-forwards' section of 'git push --help' for details.\n");
}
return 1;
}
static int do_push(const char *repo, int flags)
{
int i, errs;
struct remote *remote = remote_get(repo);
const char **url;
int url_nr;
if (!remote) {
if (repo)
die("bad repository '%s'", repo);
die("No destination configured to push to.");
}
if (remote->mirror)
flags |= (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE);
if ((flags & TRANSPORT_PUSH_ALL) && refspec) {
if (!strcmp(*refspec, "refs/tags/*"))
return error("--all and --tags are incompatible");
return error("--all can't be combined with refspecs");
}
if ((flags & TRANSPORT_PUSH_MIRROR) && refspec) {
if (!strcmp(*refspec, "refs/tags/*"))
return error("--mirror and --tags are incompatible");
return error("--mirror can't be combined with refspecs");
}
if ((flags & (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) ==
(TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) {
return error("--all and --mirror are incompatible");
}
if (!refspec && !(flags & TRANSPORT_PUSH_ALL)) {
if (remote->push_refspec_nr) {
refspec = remote->push_refspec;
refspec_nr = remote->push_refspec_nr;
} else if (!(flags & TRANSPORT_PUSH_MIRROR))
setup_default_push_refspecs();
}
errs = 0;
if (remote->pushurl_nr) {
url = remote->pushurl;
url_nr = remote->pushurl_nr;
} else {
url = remote->url;
url_nr = remote->url_nr;
}
if (url_nr) {
for (i = 0; i < url_nr; i++) {
struct transport *transport =
transport_get(remote, url[i]);
if (push_with_options(transport, flags))
errs++;
}
} else {
struct transport *transport =
transport_get(remote, NULL);
if (push_with_options(transport, flags))
errs++;
}
return !!errs;
}
int cmd_push(int argc, const char **argv, const char *prefix)
{
int flags = 0;
int tags = 0;
int rc;
const char *repo = NULL; /* default repository */
struct option options[] = {
OPT_BIT('q', "quiet", &flags, "be quiet", TRANSPORT_PUSH_QUIET),
OPT_BIT('v', "verbose", &flags, "be verbose", TRANSPORT_PUSH_VERBOSE),
OPT_STRING( 0 , "repo", &repo, "repository", "repository"),
OPT_BIT( 0 , "all", &flags, "push all refs", TRANSPORT_PUSH_ALL),
OPT_BIT( 0 , "mirror", &flags, "mirror all refs",
(TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE)),
OPT_BOOLEAN( 0, "delete", &deleterefs, "delete refs"),
OPT_BOOLEAN( 0 , "tags", &tags, "push tags (can't be used with --all or --mirror)"),
OPT_BIT('n' , "dry-run", &flags, "dry run", TRANSPORT_PUSH_DRY_RUN),
OPT_BIT( 0, "porcelain", &flags, "machine-readable output", TRANSPORT_PUSH_PORCELAIN),
OPT_BIT('f', "force", &flags, "force updates", TRANSPORT_PUSH_FORCE),
OPT_BOOLEAN( 0 , "thin", &thin, "use thin pack"),
OPT_STRING( 0 , "receive-pack", &receivepack, "receive-pack", "receive pack program"),
OPT_STRING( 0 , "exec", &receivepack, "receive-pack", "receive pack program"),
OPT_BIT('u', "set-upstream", &flags, "set upstream for git pull/status",
TRANSPORT_PUSH_SET_UPSTREAM),
OPT_END()
};
git_config(git_default_config, NULL);
argc = parse_options(argc, argv, prefix, options, push_usage, 0);
if (deleterefs && (tags || (flags & (TRANSPORT_PUSH_ALL | TRANSPORT_PUSH_MIRROR))))
die("--delete is incompatible with --all, --mirror and --tags");
if (deleterefs && argc < 2)
die("--delete doesn't make sense without any refs");
if (tags)
add_refspec("refs/tags/*");
if (argc > 0) {
repo = argv[0];
set_refspecs(argv + 1, argc - 1);
}
rc = do_push(repo, flags);
if (rc == -1)
usage_with_options(push_usage, options);
else
return rc;
}
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