/* 'ping' takes no parameters, and provides information about this mu
* server using a (:pong ...) message (details: see code below)
*/
static MuError
cmd_ping (ServerContext *ctx, GSList *args, GError **err)
{
unsigned doccount;
doccount = mu_store_count (ctx->store, err);
if (doccount == (unsigned)-1)
return print_and_clear_g_error (err);
print_expr ("(:pong \"" PACKAGE_NAME "\" "
" :props (:crypto %s :guile %s "
" :version \"" VERSION "\" "
" :doccount %u))",
mu_util_supports (MU_FEATURE_CRYPTO) ? "t" : "nil",
mu_util_supports (MU_FEATURE_GUILE|MU_FEATURE_GNUPLOT)
? "t" : "nil",
doccount);
return MU_OK;
}
static gboolean
check_params (MuConfig *opts, GError **err)
{
if (!mu_util_supports (MU_FEATURE_GUILE | MU_FEATURE_GNUPLOT)) {
mu_util_g_set_error (err, MU_ERROR_IN_PARAMETERS,
"the 'script' command is not available "
"in this version of mu");
return FALSE;
}
return TRUE;
}