[thirdparty/git.git] / builtin-push.c

/*
 * "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;
}
Commit	Line	Data
755225de LT	1	/*
	2	* "git push"
	3	*/
	4	#include "cache.h"
	5	#include "refs.h"
	6	#include "run-command.h"
	7	#include "builtin.h"
5751f490	8	#include "remote.h"
9b288516	9	#include "transport.h"
378c4832	10	#include "parse-options.h"
755225de	11
378c4832	12	static const char * const push_usage[] = {
e3163c75	13	"git push [<options>] [<repository> [<refspec>...]]",
378c4832 DB	14	NULL,
378c4832 DB	15	};
755225de	16
c29c1b40	17	static int thin;
f517f1f2	18	static int deleterefs;
d23842fd	19	static const char *receivepack;
755225de	20
96f1e58f DR	21	static const char **refspec;
96f1e58f DR	22	static int refspec_nr;
755225de LT	23
	24	static void add_refspec(const char *ref)
	25	{
	26	int nr = refspec_nr + 1;
	27	refspec = xrealloc(refspec, nr * sizeof(char *));
	28	refspec[nr-1] = ref;
	29	refspec_nr = nr;
	30	}
	31
755225de LT	32	static void set_refspecs(const char **refs, int nr)
755225de LT	33	{
8558fd9e DB	34	int i;
	35	for (i = 0; i < nr; i++) {
	36	const char *ref = refs[i];
	37	if (!strcmp("tag", ref)) {
	38	char *tag;
	39	int len;
	40	if (nr <= ++i)
	41	die("tag shorthand without <tag>");
	42	len = strlen(refs[i]) + 11;
f517f1f2 JK	43	if (deleterefs) {
	44	tag = xmalloc(len+1);
	45	strcpy(tag, ":refs/tags/");
	46	} else {
	47	tag = xmalloc(len);
	48	strcpy(tag, "refs/tags/");
	49	}
8558fd9e DB	50	strcat(tag, refs[i]);
8558fd9e DB	51	ref = tag;
f517f1f2 JK	52	} else if (deleterefs && !strchr(ref, ':')) {
	53	char *delref;
	54	int len = strlen(ref)+1;
7b48c170	55	delref = xmalloc(len+1);
f517f1f2 JK	56	strcpy(delref, ":");
	57	strcat(delref, ref);
	58	ref = delref;
	59	} else if (deleterefs)
	60	die("--delete only accepts plain target ref names");
8558fd9e	61	add_refspec(ref);
755225de	62	}
755225de LT	63	}
755225de LT	64
52153747 FAG	65	static void setup_push_tracking(void)
	66	{
	67	struct strbuf refspec = STRBUF_INIT;
	68	struct branch *branch = branch_get(NULL);
	69	if (!branch)
	70	die("You are not currently on a branch.");
db03b557	71	if (!branch->merge_nr \|\| !branch->merge)
52153747 FAG	72	die("The current branch %s is not tracking anything.",
	73	branch->name);
	74	if (branch->merge_nr != 1)
	75	die("The current branch %s is tracking multiple branches, "
	76	"refusing to push.", branch->name);
	77	strbuf_addf(&refspec, "%s:%s", branch->name, branch->merge[0]->src);
	78	add_refspec(refspec.buf);
	79	}
	80
	81	static void setup_default_push_refspecs(void)
	82	{
52153747	83	switch (push_default) {
bba0fd22	84	default:
52153747 FAG	85	case PUSH_DEFAULT_MATCHING:
	86	add_refspec(":");
	87	break;
	88
	89	case PUSH_DEFAULT_TRACKING:
	90	setup_push_tracking();
	91	break;
	92
	93	case PUSH_DEFAULT_CURRENT:
	94	add_refspec("HEAD");
	95	break;
	96
	97	case PUSH_DEFAULT_NOTHING:
	98	die("You didn't specify any refspecs to push, and "
	99	"push.default is \"nothing\".");
	100	break;
	101	}
	102	}
	103
fb0cc87e DB	104	static int push_with_options(struct transport *transport, int flags)
	105	{
	106	int err;
	107	int nonfastforward;
	108	if (receivepack)
	109	transport_set_option(transport,
	110	TRANS_OPT_RECEIVEPACK, receivepack);
	111	if (thin)
	112	transport_set_option(transport, TRANS_OPT_THIN, "yes");
	113
	114	if (flags & TRANSPORT_PUSH_VERBOSE)
	115	fprintf(stderr, "Pushing to %s\n", transport->url);
	116	err = transport_push(transport, refspec_nr, refspec, flags,
	117	&nonfastforward);
53970b92 TRC	118	if (err != 0)
	119	error("failed to push some refs to '%s'", transport->url);
	120
fb0cc87e DB	121	err \|= transport_disconnect(transport);
	122
	123	if (!err)
	124	return 0;
	125
fb0cc87e DB	126	if (nonfastforward && advice_push_nonfastforward) {
fb0cc87e DB	127	printf("To prevent you from losing history, non-fast-forward updates were rejected\n"
c0eb6043 MM	128	"Merge the remote changes before pushing again. See the 'Note about\n"
c0eb6043 MM	129	"fast-forwards' section of 'git push --help' for details.\n");
fb0cc87e DB	130	}
	131
	132	return 1;
	133	}
	134
9b288516	135	static int do_push(const char *repo, int flags)
755225de	136	{
5751f490	137	int i, errs;
5751f490	138	struct remote *remote = remote_get(repo);
20346234 MG	139	const char **url;
20346234 MG	140	int url_nr;
755225de	141
fa685bdf DB	142	if (!remote) {
	143	if (repo)
	144	die("bad repository '%s'", repo);
	145	die("No destination configured to push to.");
	146	}
755225de	147
84bb2dfd PB	148	if (remote->mirror)
	149	flags \|= (TRANSPORT_PUSH_MIRROR\|TRANSPORT_PUSH_FORCE);
	150
b259f09b MZ	151	if ((flags & TRANSPORT_PUSH_ALL) && refspec) {
	152	if (!strcmp(refspec, "refs/tags/"))
	153	return error("--all and --tags are incompatible");
	154	return error("--all can't be combined with refspecs");
	155	}
	156
	157	if ((flags & TRANSPORT_PUSH_MIRROR) && refspec) {
	158	if (!strcmp(refspec, "refs/tags/"))
	159	return error("--mirror and --tags are incompatible");
	160	return error("--mirror can't be combined with refspecs");
	161	}
84bb2dfd PB	162
	163	if ((flags & (TRANSPORT_PUSH_ALL\|TRANSPORT_PUSH_MIRROR)) ==
	164	(TRANSPORT_PUSH_ALL\|TRANSPORT_PUSH_MIRROR)) {
	165	return error("--all and --mirror are incompatible");
	166	}
	167
52153747 FAG	168	if (!refspec && !(flags & TRANSPORT_PUSH_ALL)) {
	169	if (remote->push_refspec_nr) {
	170	refspec = remote->push_refspec;
	171	refspec_nr = remote->push_refspec_nr;
	172	} else if (!(flags & TRANSPORT_PUSH_MIRROR))
	173	setup_default_push_refspecs();
5751f490	174	}
fd1d1b05	175	errs = 0;
20346234 MG	176	if (remote->pushurl_nr) {
	177	url = remote->pushurl;
	178	url_nr = remote->pushurl_nr;
	179	} else {
	180	url = remote->url;
	181	url_nr = remote->url_nr;
	182	}
fb0cc87e DB	183	if (url_nr) {
	184	for (i = 0; i < url_nr; i++) {
	185	struct transport *transport =
	186	transport_get(remote, url[i]);
	187	if (push_with_options(transport, flags))
	188	errs++;
07436e43	189	}
fb0cc87e DB	190	} else {
	191	struct transport *transport =
	192	transport_get(remote, NULL);
	193
	194	if (push_with_options(transport, flags))
	195	errs++;
755225de	196	}
fd1d1b05	197	return !!errs;
755225de LT	198	}
755225de LT	199
a633fca0	200	int cmd_push(int argc, const char *argv, const char prefix)
755225de	201	{
9b288516	202	int flags = 0;
378c4832	203	int tags = 0;
84bb2dfd	204	int rc;
5751f490	205	const char repo = NULL; / default repository */
378c4832	206	struct option options[] = {
afdeeb00	207	OPT_BIT('q', "quiet", &flags, "be quiet", TRANSPORT_PUSH_QUIET),
c29c1b40	208	OPT_BIT('v', "verbose", &flags, "be verbose", TRANSPORT_PUSH_VERBOSE),
378c4832	209	OPT_STRING( 0 , "repo", &repo, "repository", "repository"),
c29c1b40 MB	210	OPT_BIT( 0 , "all", &flags, "push all refs", TRANSPORT_PUSH_ALL),
	211	OPT_BIT( 0 , "mirror", &flags, "mirror all refs",
	212	(TRANSPORT_PUSH_MIRROR\|TRANSPORT_PUSH_FORCE)),
f517f1f2	213	OPT_BOOLEAN( 0, "delete", &deleterefs, "delete refs"),
f740cc25	214	OPT_BOOLEAN( 0 , "tags", &tags, "push tags (can't be used with --all or --mirror)"),
9f67fee2	215	OPT_BIT('n' , "dry-run", &flags, "dry run", TRANSPORT_PUSH_DRY_RUN),
1965ff74	216	OPT_BIT( 0, "porcelain", &flags, "machine-readable output", TRANSPORT_PUSH_PORCELAIN),
c29c1b40	217	OPT_BIT('f', "force", &flags, "force updates", TRANSPORT_PUSH_FORCE),
378c4832 DB	218	OPT_BOOLEAN( 0 , "thin", &thin, "use thin pack"),
	219	OPT_STRING( 0 , "receive-pack", &receivepack, "receive-pack", "receive pack program"),
	220	OPT_STRING( 0 , "exec", &receivepack, "receive-pack", "receive pack program"),
e9fcd1e2 IL	221	OPT_BIT('u', "set-upstream", &flags, "set upstream for git pull/status",
e9fcd1e2 IL	222	TRANSPORT_PUSH_SET_UPSTREAM),
378c4832 DB	223	OPT_END()
378c4832 DB	224	};
755225de	225
2aae905f	226	git_config(git_default_config, NULL);
37782920	227	argc = parse_options(argc, argv, prefix, options, push_usage, 0);
378c4832	228
f517f1f2 JK	229	if (deleterefs && (tags \|\| (flags & (TRANSPORT_PUSH_ALL \| TRANSPORT_PUSH_MIRROR))))
	230	die("--delete is incompatible with --all, --mirror and --tags");
	231	if (deleterefs && argc < 2)
	232	die("--delete doesn't make sense without any refs");
	233
378c4832 DB	234	if (tags)
378c4832 DB	235	add_refspec("refs/tags/*");
378c4832 DB	236
	237	if (argc > 0) {
	238	repo = argv[0];
	239	set_refspecs(argv + 1, argc - 1);
755225de	240	}
8558fd9e	241
84bb2dfd PB	242	rc = do_push(repo, flags);
84bb2dfd PB	243	if (rc == -1)
94c89ba6	244	usage_with_options(push_usage, options);
84bb2dfd PB	245	else
84bb2dfd PB	246	return rc;
755225de	247	}