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path: root/builtin-push.c
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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 [--all] [--dry-run] [--tags] [--receive-pack=<git-receive-pack>] [--repo=all] [-f | --force] [-v] [<repository> <refspec>...]",
	NULL,
};

static int thin, verbose;
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;
			tag = xmalloc(len);
			strcpy(tag, "refs/tags/");
			strcat(tag, refs[i]);
			ref = tag;
		}
		add_refspec(ref);
	}
}

static int do_push(const char *repo, int flags)
{
	int i, errs;
	struct remote *remote = remote_get(repo);

	if (!remote)
		die("bad repository '%s'", repo);

	if (!refspec
		&& !(flags & TRANSPORT_PUSH_ALL)
		&& remote->push_refspec_nr) {
		refspec = remote->push_refspec;
		refspec_nr = remote->push_refspec_nr;
	}
	errs = 0;
	for (i = 0; i < remote->url_nr; i++) {
		struct transport *transport =
			transport_get(remote, remote->url[i]);
		int err;
		if (receivepack)
			transport_set_option(transport,
					     TRANS_OPT_RECEIVEPACK, receivepack);
		if (thin)
			transport_set_option(transport, TRANS_OPT_THIN, "yes");

		if (verbose)
			fprintf(stderr, "Pushing to %s\n", remote->url[i]);
		err = transport_push(transport, refspec_nr, refspec, flags);
		err |= transport_disconnect(transport);

		if (!err)
			continue;

		error("failed to push to '%s'", remote->url[i]);
		errs++;
	}
	return !!errs;
}

int cmd_push(int argc, const char **argv, const char *prefix)
{
	int flags = 0;
	int all = 0;
	int dry_run = 0;
	int force = 0;
	int tags = 0;
	const char *repo = NULL;	/* default repository */

	struct option options[] = {
		OPT__VERBOSE(&verbose),
		OPT_STRING( 0 , "repo", &repo, "repository", "repository"),
		OPT_BOOLEAN( 0 , "all", &all, "push all refs"),
		OPT_BOOLEAN( 0 , "tags", &tags, "push tags"),
		OPT_BOOLEAN( 0 , "dry-run", &dry_run, "dry run"),
		OPT_BOOLEAN('f', "force", &force, "force updates"),
		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_END()
	};

	argc = parse_options(argc, argv, options, push_usage, 0);

	if (force)
		flags |= TRANSPORT_PUSH_FORCE;
	if (dry_run)
		flags |= TRANSPORT_PUSH_DRY_RUN;
	if (verbose)
		flags |= TRANSPORT_PUSH_VERBOSE;
	if (tags)
		add_refspec("refs/tags/*");
	if (all)
		flags |= TRANSPORT_PUSH_ALL;

	if (argc > 0) {
		repo = argv[0];
		set_refspecs(argv + 1, argc - 1);
	}
	if ((flags & TRANSPORT_PUSH_ALL) && refspec)
		usage_with_options(push_usage, options);

	return do_push(repo, flags);
}