Blame examples/remote.c

Packit Service 20376f
/*
Packit Service 20376f
 * libgit2 "remote" example - shows how to modify remotes for a repo
Packit Service 20376f
 *
Packit Service 20376f
 * Written by the libgit2 contributors
Packit Service 20376f
 *
Packit Service 20376f
 * To the extent possible under law, the author(s) have dedicated all copyright
Packit Service 20376f
 * and related and neighboring rights to this software to the public domain
Packit Service 20376f
 * worldwide. This software is distributed without any warranty.
Packit Service 20376f
 *
Packit Service 20376f
 * You should have received a copy of the CC0 Public Domain Dedication along
Packit Service 20376f
 * with this software. If not, see
Packit Service 20376f
 * <http://creativecommons.org/publicdomain/zero/1.0/>.
Packit Service 20376f
 */
Packit Service 20376f
Packit Service 20376f
#include "common.h"
Packit Service 20376f
Packit Service 20376f
/**
Packit Service 20376f
 * This is a sample program that is similar to "git remote".  See the
Packit Service 20376f
 * documentation for that (try "git help remote") to understand what this
Packit Service 20376f
 * program is emulating.
Packit Service 20376f
 *
Packit Service 20376f
 * This demonstrates using the libgit2 APIs to modify remotes of a repository.
Packit Service 20376f
 */
Packit Service 20376f
Packit Service 20376f
enum subcmd {
Packit Service 20376f
	subcmd_add,
Packit Service 20376f
	subcmd_remove,
Packit Service 20376f
	subcmd_rename,
Packit Service 20376f
	subcmd_seturl,
Packit Service 20376f
	subcmd_show,
Packit Service 20376f
};
Packit Service 20376f
Packit Service 20376f
struct opts {
Packit Service 20376f
	enum subcmd cmd;
Packit Service 20376f
Packit Service 20376f
	/* for command-specific args */
Packit Service 20376f
	int argc;
Packit Service 20376f
	char **argv;
Packit Service 20376f
};
Packit Service 20376f
Packit Service 20376f
static int cmd_add(git_repository *repo, struct opts *o);
Packit Service 20376f
static int cmd_remove(git_repository *repo, struct opts *o);
Packit Service 20376f
static int cmd_rename(git_repository *repo, struct opts *o);
Packit Service 20376f
static int cmd_seturl(git_repository *repo, struct opts *o);
Packit Service 20376f
static int cmd_show(git_repository *repo, struct opts *o);
Packit Service 20376f
Packit Service 20376f
static void parse_subcmd(
Packit Service 20376f
	struct opts *opt, int argc, char **argv);
Packit Service 20376f
static void usage(const char *msg, const char *arg);
Packit Service 20376f
Packit Service 20376f
int main(int argc, char *argv[])
Packit Service 20376f
{
Packit Service 20376f
	int retval = 0;
Packit Service 20376f
	struct opts opt = {0};
Packit Service 20376f
	git_buf buf = GIT_BUF_INIT_CONST(NULL, 0);
Packit Service 20376f
	git_repository *repo = NULL;
Packit Service 20376f
Packit Service 20376f
	parse_subcmd(&opt, argc, argv);
Packit Service 20376f
Packit Service 20376f
	git_libgit2_init();
Packit Service 20376f
Packit Service 20376f
	check_lg2(git_repository_discover(&buf, ".", 0, NULL),
Packit Service 20376f
		"Could not find repository", NULL);
Packit Service 20376f
Packit Service 20376f
	check_lg2(git_repository_open(&repo, buf.ptr),
Packit Service 20376f
		"Could not open repository", NULL);
Packit Service 20376f
	git_buf_free(&buf;;
Packit Service 20376f
Packit Service 20376f
	switch (opt.cmd)
Packit Service 20376f
	{
Packit Service 20376f
	case subcmd_add:
Packit Service 20376f
		retval = cmd_add(repo, &opt;;
Packit Service 20376f
		break;
Packit Service 20376f
	case subcmd_remove:
Packit Service 20376f
		retval = cmd_remove(repo, &opt;;
Packit Service 20376f
		break;
Packit Service 20376f
	case subcmd_rename:
Packit Service 20376f
		retval = cmd_rename(repo, &opt;;
Packit Service 20376f
		break;
Packit Service 20376f
	case subcmd_seturl:
Packit Service 20376f
		retval = cmd_seturl(repo, &opt;;
Packit Service 20376f
		break;
Packit Service 20376f
	case subcmd_show:
Packit Service 20376f
		retval = cmd_show(repo, &opt;;
Packit Service 20376f
		break;
Packit Service 20376f
	}
Packit Service 20376f
Packit Service 20376f
	git_libgit2_shutdown();
Packit Service 20376f
Packit Service 20376f
	return retval;
Packit Service 20376f
}
Packit Service 20376f
Packit Service 20376f
static int cmd_add(git_repository *repo, struct opts *o)
Packit Service 20376f
{
Packit Service 20376f
	char *name, *url;
Packit Service 20376f
	git_remote *remote = {0};
Packit Service 20376f
Packit Service 20376f
	if (o->argc != 2)
Packit Service 20376f
		usage("you need to specify a name and URL", NULL);
Packit Service 20376f
Packit Service 20376f
	name = o->argv[0];
Packit Service 20376f
	url = o->argv[1];
Packit Service 20376f
Packit Service 20376f
	check_lg2(git_remote_create(&remote, repo, name, url),
Packit Service 20376f
			"could not create remote", NULL);
Packit Service 20376f
Packit Service 20376f
	return 0;
Packit Service 20376f
}
Packit Service 20376f
Packit Service 20376f
static int cmd_remove(git_repository *repo, struct opts *o)
Packit Service 20376f
{
Packit Service 20376f
	char *name;
Packit Service 20376f
Packit Service 20376f
	if (o->argc != 1)
Packit Service 20376f
		usage("you need to specify a name", NULL);
Packit Service 20376f
Packit Service 20376f
	name = o->argv[0];
Packit Service 20376f
Packit Service 20376f
	check_lg2(git_remote_delete(repo, name),
Packit Service 20376f
			"could not delete remote", name);
Packit Service 20376f
Packit Service 20376f
	return 0;
Packit Service 20376f
}
Packit Service 20376f
Packit Service 20376f
static int cmd_rename(git_repository *repo, struct opts *o)
Packit Service 20376f
{
Packit Service 20376f
	int i, retval;
Packit Service 20376f
	char *old, *new;
Packit Service 20376f
	git_strarray problems = {0};
Packit Service 20376f
Packit Service 20376f
	if (o->argc != 2)
Packit Service 20376f
		usage("you need to specify old and new remote name", NULL);
Packit Service 20376f
Packit Service 20376f
	old = o->argv[0];
Packit Service 20376f
	new = o->argv[1];
Packit Service 20376f
Packit Service 20376f
	retval = git_remote_rename(&problems, repo, old, new);
Packit Service 20376f
	if (!retval)
Packit Service 20376f
		return 0;
Packit Service 20376f
Packit Service 20376f
	for (i = 0; i < (int) problems.count; i++) {
Packit Service 20376f
		puts(problems.strings[0]);
Packit Service 20376f
	}
Packit Service 20376f
Packit Service 20376f
	git_strarray_free(&problems);
Packit Service 20376f
Packit Service 20376f
	return retval;
Packit Service 20376f
}
Packit Service 20376f
Packit Service 20376f
static int cmd_seturl(git_repository *repo, struct opts *o)
Packit Service 20376f
{
Packit Service 20376f
	int i, retval, push = 0;
Packit Service 20376f
	char *name = NULL, *url = NULL;
Packit Service 20376f
Packit Service 20376f
	for (i = 0; i < o->argc; i++) {
Packit Service 20376f
		char *arg = o->argv[i];
Packit Service 20376f
Packit Service 20376f
		if (!strcmp(arg, "--push")) {
Packit Service 20376f
			push = 1;
Packit Service 20376f
		} else if (arg[0] != '-' && name == NULL) {
Packit Service 20376f
			name = arg;
Packit Service 20376f
		} else if (arg[0] != '-' && url == NULL) {
Packit Service 20376f
			url = arg;
Packit Service 20376f
		} else {
Packit Service 20376f
			usage("invalid argument to set-url", arg);
Packit Service 20376f
		}
Packit Service 20376f
	}
Packit Service 20376f
Packit Service 20376f
	if (name == NULL || url == NULL)
Packit Service 20376f
		usage("you need to specify remote and the new URL", NULL);
Packit Service 20376f
Packit Service 20376f
	if (push)
Packit Service 20376f
		retval = git_remote_set_pushurl(repo, name, url);
Packit Service 20376f
	else
Packit Service 20376f
		retval = git_remote_set_url(repo, name, url);
Packit Service 20376f
Packit Service 20376f
	check_lg2(retval, "could not set URL", url);
Packit Service 20376f
Packit Service 20376f
	return 0;
Packit Service 20376f
}
Packit Service 20376f
Packit Service 20376f
static int cmd_show(git_repository *repo, struct opts *o)
Packit Service 20376f
{
Packit Service 20376f
	int i;
Packit Service 20376f
	const char *arg, *name, *fetch, *push;
Packit Service 20376f
	int verbose = 0;
Packit Service 20376f
	git_strarray remotes = {0};
Packit Service 20376f
	git_remote *remote = {0};
Packit Service 20376f
Packit Service 20376f
	for (i = 0; i < o->argc; i++) {
Packit Service 20376f
		arg = o->argv[i];
Packit Service 20376f
Packit Service 20376f
		if (!strcmp(arg, "-v") || !strcmp(arg, "--verbose")) {
Packit Service 20376f
			verbose = 1;
Packit Service 20376f
		}
Packit Service 20376f
	}
Packit Service 20376f
Packit Service 20376f
	check_lg2(git_remote_list(&remotes, repo),
Packit Service 20376f
		"could not retrieve remotes", NULL);
Packit Service 20376f
Packit Service 20376f
	for (i = 0; i < (int) remotes.count; i++) {
Packit Service 20376f
		name = remotes.strings[i];
Packit Service 20376f
		if (!verbose) {
Packit Service 20376f
			puts(name);
Packit Service 20376f
			continue;
Packit Service 20376f
		}
Packit Service 20376f
Packit Service 20376f
		check_lg2(git_remote_lookup(&remote, repo, name),
Packit Service 20376f
			"could not look up remote", name);
Packit Service 20376f
Packit Service 20376f
		fetch = git_remote_url(remote);
Packit Service 20376f
		if (fetch)
Packit Service 20376f
			printf("%s\t%s (fetch)\n", name, fetch);
Packit Service 20376f
		push = git_remote_pushurl(remote);
Packit Service 20376f
		/* use fetch URL if no distinct push URL has been set */
Packit Service 20376f
		push = push ? push : fetch;
Packit Service 20376f
		if (push)
Packit Service 20376f
			printf("%s\t%s (push)\n", name, push);
Packit Service 20376f
Packit Service 20376f
		git_remote_free(remote);
Packit Service 20376f
	}
Packit Service 20376f
Packit Service 20376f
	git_strarray_free(&remotes);
Packit Service 20376f
Packit Service 20376f
	return 0;
Packit Service 20376f
}
Packit Service 20376f
Packit Service 20376f
static void parse_subcmd(
Packit Service 20376f
	struct opts *opt, int argc, char **argv)
Packit Service 20376f
{
Packit Service 20376f
	char *arg = argv[1];
Packit Service 20376f
	enum subcmd cmd = 0;
Packit Service 20376f
Packit Service 20376f
	if (argc < 2)
Packit Service 20376f
		usage("no command specified", NULL);
Packit Service 20376f
Packit Service 20376f
	if (!strcmp(arg, "add")) {
Packit Service 20376f
		cmd = subcmd_add;
Packit Service 20376f
	} else if (!strcmp(arg, "remove")) {
Packit Service 20376f
		cmd = subcmd_remove;
Packit Service 20376f
	} else if (!strcmp(arg, "rename")) {
Packit Service 20376f
		cmd = subcmd_rename;
Packit Service 20376f
	} else if (!strcmp(arg, "set-url")) {
Packit Service 20376f
		cmd = subcmd_seturl;
Packit Service 20376f
	} else if (!strcmp(arg, "show")) {
Packit Service 20376f
		cmd = subcmd_show;
Packit Service 20376f
	} else {
Packit Service 20376f
		usage("command is not valid", arg);
Packit Service 20376f
	}
Packit Service 20376f
	opt->cmd = cmd;
Packit Service 20376f
Packit Service 20376f
	opt->argc = argc - 2; /* executable and subcommand are removed */
Packit Service 20376f
	opt->argv = argv + 2;
Packit Service 20376f
}
Packit Service 20376f
Packit Service 20376f
static void usage(const char *msg, const char *arg)
Packit Service 20376f
{
Packit Service 20376f
	fputs("usage: remote add <name> <url>\n", stderr);
Packit Service 20376f
	fputs("       remote remove <name>\n", stderr);
Packit Service 20376f
	fputs("       remote rename <old> <new>\n", stderr);
Packit Service 20376f
	fputs("       remote set-url [--push] <name> <newurl>\n", stderr);
Packit Service 20376f
	fputs("       remote show [-v|--verbose]\n", stderr);
Packit Service 20376f
Packit Service 20376f
	if (msg && !arg)
Packit Service 20376f
		fprintf(stderr, "\n%s\n", msg);
Packit Service 20376f
	else if (msg && arg)
Packit Service 20376f
		fprintf(stderr, "\n%s: %s\n", msg, arg);
Packit Service 20376f
	exit(1);
Packit Service 20376f
}