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/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#include <stdio.h>
#include <git2.h>
#include "cli.h"
#include "cmd.h"
static int show_help = 0;
static int show_version = 0;
static char *command = NULL;
static char **args = NULL;
const cli_opt_spec cli_common_opts[] = {
{ CLI_OPT_TYPE_SWITCH, "help", 0, &show_help, 1,
CLI_OPT_USAGE_DEFAULT, NULL, "display help information" },
{ CLI_OPT_TYPE_SWITCH, "version", 0, &show_version, 1,
CLI_OPT_USAGE_DEFAULT, NULL, "display the version" },
{ CLI_OPT_TYPE_ARG, "command", 0, &command, 0,
CLI_OPT_USAGE_REQUIRED, "command", "the command to run" },
{ CLI_OPT_TYPE_ARGS, "args", 0, &args, 0,
CLI_OPT_USAGE_DEFAULT, "args", "arguments for the command" },
{ 0 }
};
const cli_cmd_spec cli_cmds[] = {
{ "cat-file", cmd_cat_file, "Display an object in the repository" },
{ "clone", cmd_clone, "Clone a repository into a new directory" },
{ "hash-object", cmd_hash_object, "Hash a raw object and product its object ID" },
{ "help", cmd_help, "Display help information" },
{ NULL }
};
int main(int argc, char **argv)
{
const cli_cmd_spec *cmd;
cli_opt_parser optparser;
cli_opt opt;
char *help_args[3] = { NULL };
int help_args_len;
int args_len = 0;
int ret = 0;
if (git_libgit2_init() < 0) {
cli_error("failed to initialize libgit2");
exit(CLI_EXIT_GIT);
}
cli_opt_parser_init(&optparser, cli_common_opts, argv + 1, argc - 1, CLI_OPT_PARSE_GNU);
/* Parse the top-level (common) options and command information */
while (cli_opt_parser_next(&opt, &optparser)) {
if (!opt.spec) {
cli_opt_status_fprint(stderr, PROGRAM_NAME, &opt);
cli_opt_usage_fprint(stderr, PROGRAM_NAME, NULL, cli_common_opts);
ret = CLI_EXIT_USAGE;
goto done;
}
/*
* When we see a command, stop parsing and capture the
* remaining arguments as args for the command itself.
*/
if (command) {
args = &argv[optparser.idx];
args_len = (int)(argc - optparser.idx);
break;
}
}
if (show_version) {
printf("%s version %s\n", PROGRAM_NAME, LIBGIT2_VERSION);
goto done;
}
/*
* If `--help <command>` is specified, delegate to that command's
* `--help` option. If no command is specified, run the `help`
* command. Do this by updating the args to emulate that behavior.
*/
if (!command || show_help) {
help_args[0] = command ? (char *)command : "help";
help_args[1] = command ? "--help" : NULL;
help_args_len = command ? 2 : 1;
command = help_args[0];
args = help_args;
args_len = help_args_len;
}
if ((cmd = cli_cmd_spec_byname(command)) == NULL) {
ret = cli_error("'%s' is not a %s command. See '%s help'.",
command, PROGRAM_NAME, PROGRAM_NAME);
goto done;
}
ret = cmd->fn(args_len, args);
done:
git_libgit2_shutdown();
return ret;
}
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