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/*
* util.c - useful functions
*
* Copyright © 2010 Mason Larobina <mason.larobina@gmail.com>
* Copyright © 2007-2008 Julien Danjou <julien@danjou.info>
* Copyright © 2006 Pierre Habouzit <madcoder@debian.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "common/util.h"
#include "globalconf.h"
#include <glib/gprintf.h>
#include <stdarg.h>
#include <stdlib.h>
#include <unistd.h>
/* Print error and exit with EXIT_FAILURE code. */
void
_fatal(gint line, const gchar *fct, const gchar *fmt, ...) {
va_list ap;
va_start(ap, fmt);
gint atty = isatty(STDERR_FILENO);
if (atty) g_fprintf(stderr, ANSI_COLOR_BG_RED);
g_fprintf(stderr, "[%#12f] ", l_time() - globalconf.starttime);
g_fprintf(stderr, "E: luakit: %s:%d: ", fct, line);
g_vfprintf(stderr, fmt, ap);
va_end(ap);
if (atty) g_fprintf(stderr, ANSI_COLOR_RESET);
g_fprintf(stderr, "\n");
exit(EXIT_FAILURE);
}
/* Print error message on stderr. */
void
_warn(gint line, const gchar *fct, const gchar *fmt, ...) {
va_list ap;
va_start(ap, fmt);
gint atty = isatty(STDERR_FILENO);
if (atty) g_fprintf(stderr, ANSI_COLOR_RED);
g_fprintf(stderr, "[%#12f] ", l_time() - globalconf.starttime);
g_fprintf(stderr, "E: luakit: %s:%d: ", fct, line);
g_vfprintf(stderr, fmt, ap);
va_end(ap);
if (atty) g_fprintf(stderr, ANSI_COLOR_RESET);
g_fprintf(stderr, "\n");
}
/* Print debug message on stderr. */
void
_debug(gint line, const gchar *fct, const gchar *fmt, ...) {
if (globalconf.verbose) {
va_list ap;
va_start(ap, fmt);
g_fprintf(stderr, "[%#12f] ", l_time() - globalconf.starttime);
g_fprintf(stderr, "D: luakit: %s:%d: ", fct, line);
g_vfprintf(stderr, fmt, ap);
va_end(ap);
g_fprintf(stderr, "\n");
}
}
gboolean
file_exists(const gchar *filename)
{
return (access(filename, F_OK) == 0);
}
/* Pretty-format calling function filename, function name & line number for
* debugging purposes */
gchar*
luaH_callerinfo(lua_State *L)
{
lua_Debug ar;
/* get information about calling lua function */
if (lua_getstack(L, 1, &ar) && lua_getinfo(L, "Sln", &ar))
return g_strdup_printf("%s%s%s:%d", ar.short_src,
ar.name ? ":" : "", ar.name ? ar.name : "", ar.currentline);
return NULL;
}
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