/* Dispatch actions according to program flags (NOT commands or
* command options).
*/
static void
cli_context_flag_dispatch (cli_context_t *ctx, gint in_argc, gchar **in_argv)
{
command_t *cmd;
gboolean check;
GOptionEntry flagdefs[] = {
{ "help", 'h', 0, G_OPTION_ARG_NONE, NULL,
_("Display this help and exit."), NULL },
{ "version", 'v', 0, G_OPTION_ARG_NONE, NULL,
_("Output version information and exit."), NULL },
{ NULL }
};
/* Include one command token as a workaround for the bug that
* the option parser does not parse commands starting with a
* flag properly (e.g. "-p foo arg1"). Will be skipped by the
* command utils. */
cmd = command_new (flagdefs, in_argc + 1, in_argv - 1);
if (!cmd) {
/* An error message has already been printed, so we just return. */
return;
}
if (command_flag_boolean_get (cmd, "help", &check) && check) {
if (command_arg_count (cmd) >= 1) {
help_command (ctx, cli_context_command_names (ctx),
command_argv_get (cmd), command_arg_count (cmd),
CMD_TYPE_COMMAND);
} else {
/* FIXME: explain -h and -v flags here (reuse help_command code?) */
g_printf (_("usage: xmms2 [<command> [args]]\n\n"));
g_printf (_("XMMS2 CLI, the awesome command-line XMMS2 client from the future, "
"v" XMMS_VERSION ".\n\n"));
g_printf (_("If given a command, runs it inline and exit.\n"));
g_printf (_("If not, enters a shell-like interface to execute commands.\n\n"));
g_printf (_("Type 'help <command>' for detailed help about a command.\n"));
}
} else if (command_flag_boolean_get (cmd, "version", &check) && check) {
g_printf (_("XMMS2 CLI version " XMMS_VERSION "\n"));
g_printf (_("Copyright (C) 2008-2014 XMMS2 Team\n"));
g_printf (_("This is free software; see the source for copying conditions.\n"));
g_printf (_("There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n"
"PARTICULAR PURPOSE.\n"));
/* FIXME: compiled against? use RL_READLINE_VERSION? */
g_printf (_(" Using readline version %s\n"), rl_library_version);
} else {
/* Call help to print the "no such command" error */
/* FIXME: Could be a more helpful "invalid flag"?*/
help_command (ctx, cli_context_command_names (ctx),
in_argv, in_argc, CMD_TYPE_COMMAND);
}
command_free (cmd);
}
static void
cli_context_command_dispatch (cli_context_t *ctx, gint in_argc, gchar **in_argv)
{
command_action_t *action;
command_trie_match_type_t match;
gint argc;
gchar *tmp_argv[in_argc+1];
gchar **argv;
/* The arguments will be updated by command_trie_find and
* init_context_from_args, so we make a copy. */
memcpy (tmp_argv, in_argv, in_argc * sizeof (gchar *));
tmp_argv[in_argc] = NULL;
argc = in_argc;
argv = tmp_argv;
/* This updates argv and argc so that they start at the first non-command
* token. */
match = cli_context_find_command (ctx, &argv, &argc, &action);
if (match == COMMAND_TRIE_MATCH_ACTION) {
gboolean help;
gboolean need_io;
command_t *cmd;
/* Include one command token as a workaround for the bug that
* the option parser does not parse commands starting with a
* flag properly (e.g. "-p foo arg1"). Will be skipped by the
* command utils. */
cmd = command_new (action->argdefs, argc + 1, argv - 1);
if (cmd) {
if (command_flag_boolean_get (cmd, "help", &help) && help) {
/* Help flag passed, bypass action and show help */
/* FIXME(g): select aliasnames list if it's an alias */
help_command (ctx, cli_context_command_names (ctx),
in_argv, in_argc, CMD_TYPE_COMMAND);
} else if (cli_context_command_runnable (ctx, action)) {
/* All fine, run the command */
command_name_set (cmd, action->name);
cli_context_loop_suspend (ctx);
need_io = action->callback (ctx, cmd);
if (!need_io) {
cli_context_loop_resume (ctx);
}
}
command_free (cmd);
}
} else {
/* Call help to print the "no such command" error */
help_command (ctx, cli_context_command_names (ctx),
in_argv, in_argc, CMD_TYPE_COMMAND);
}
}
gboolean
cli_help (cli_context_t *ctx, command_t *cmd)
{
cmd_type_t cmdtype;
GList *names;
gint num_args;
gboolean alias;
num_args = command_arg_count (cmd);
if (command_flag_boolean_get (cmd, "alias", &alias) && alias) {
names = cli_context_alias_names (ctx);
cmdtype = CMD_TYPE_ALIAS;
} else {
names = cli_context_command_names (ctx);
cmdtype = CMD_TYPE_COMMAND;
}
/* No argument, display the list of commands */
if (num_args == 0) {
help_list (names, NULL, cmdtype);
} else {
help_command (ctx, names, command_argv_get (cmd), num_args, cmdtype);
}
/* No data pending */
return FALSE;
}
