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mirror of https://github.com/Llewellynvdm/conky.git synced 2024-11-19 19:45:15 +00:00
conky/src/main.cc
2021-01-23 18:00:53 -06:00

380 lines
11 KiB
C++

/*
*
* Conky, a system monitor, based on torsmo
*
* Any original torsmo code is licensed under the BSD license
*
* All code written since the fork of torsmo is licensed under the GPL
*
* Please see COPYING for details
*
* Copyright (c) 2005-2019 Brenden Matthews, Philip Kovacs, et. al.
* (see AUTHORS)
* All rights reserved.
*
* 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 <getopt.h>
#include <cstdio>
#include <iostream>
#include "build.h"
#include "config.h"
#include "conky.h"
#include "lua-config.hh"
#ifdef BUILD_X11
#include "x11.h"
#endif /* BUILD_X11 */
#ifdef BUILD_CURL
#include "ccurl_thread.h"
#endif /* BUILD_CURL */
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#include "freebsd.h"
#endif /* FreeBSD */
#ifdef BUILD_BUILTIN_CONFIG
#include "defconfig.h"
#ifdef BUILD_OLD_CONFIG
#include "convertconf.h"
#endif /* BUILD_OLD_CONFIG */
#endif /* BUILD_BUILTIN_CONFIG */
static void print_version() {
std::cout << _(PACKAGE_NAME " " VERSION " compiled " BUILD_DATE
" for " BUILD_ARCH
"\n"
"\nCompiled in features:\n\n"
"System config file: " SYSTEM_CONFIG_FILE
"\n"
"Package library path: " PACKAGE_LIBDIR "\n\n")
<< _("\n General:\n")
#ifdef HAVE_OPENMP
<< _(" * OpenMP\n")
#endif /* HAVE_OPENMP */
#ifdef BUILD_MATH
<< _(" * math\n")
#endif /* BUILD_MATH */
#ifdef BUILD_HDDTEMP
<< _(" * hddtemp\n")
#endif /* BUILD_HDDTEMP */
#ifdef BUILD_PORT_MONITORS
<< _(" * portmon\n")
#endif /* BUILD_PORT_MONITORS */
#ifdef BUILD_HTTP
<< _(" * HTTP\n")
#endif /* BUILD_HTTP */
#ifdef BUILD_IPV6
<< _(" * IPv6\n")
#endif /* BUILD_IPV6 */
#ifdef BUILD_IRC
<< _(" * IRC\n")
#endif
#ifdef BUILD_CURL
<< _(" * Curl\n")
#endif /* BUILD_CURL */
#ifdef BUILD_RSS
<< _(" * RSS\n")
#endif /* BUILD_RSS */
#ifdef BUILD_ICAL
<< _(" * ICal\n")
#endif /* BUILD_ICAL */
#ifdef BUILD_ICONV
<< _(" * iconv\n")
#endif /* BUILD_ICONV */
#ifdef BUILD_MYSQL
<< _(" * MySQL\n")
#endif /* BUILD_MYSQL */
#ifdef BUILD_WEATHER_METAR
<< _(" * Weather (METAR)\n")
#endif /* BUILD_WEATHER_METAR */
#ifdef BUILD_WLAN
<< _(" * wireless\n")
#endif /* BUILD_WLAN */
#ifdef BUILD_IBM
<< _(" * support for IBM/Lenovo notebooks\n")
#endif /* BUILD_IBM */
#ifdef BUILD_NVIDIA
<< _(" * nvidia\n")
#endif /* BUILD_NVIDIA */
#ifdef BUILD_BUILTIN_CONFIG
<< _(" * builtin default configuration\n")
#endif /* BUILD_BUILTIN_CONFIG */
#ifdef BUILD_OLD_CONFIG
<< _(" * old configuration syntax\n")
#endif /* BUILD_OLD_CONFIG */
#ifdef BUILD_IMLIB2
<< _(" * Imlib2\n")
#endif /* BUILD_IMLIB2 */
#ifdef HAVE_SOME_SOUNDCARD_H
<< _(" * OSS mixer support\n")
#endif /* HAVE_SOME_SOUNDCARD_H */
#ifdef BUILD_MIXER_ALSA
<< _(" * ALSA mixer support\n")
#endif /* BUILD_MIXER_ALSA */
#ifdef BUILD_APCUPSD
<< _(" * apcupsd\n")
#endif /* BUILD_APCUPSD */
#ifdef BUILD_IOSTATS
<< _(" * iostats\n")
#endif /* BUILD_IOSTATS */
#ifdef BUILD_NCURSES
<< _(" * ncurses\n")
#endif /* BUILD_NCURSES */
#ifdef BUILD_I18N
<< _(" * Internationalization support\n")
#endif
#ifdef BUILD_PULSEAUDIO
<< _(" * PulseAudio\n")
#endif /* BUIL_PULSEAUDIO */
#ifdef DEBUG
<< _(" * Debugging extensions\n")
#endif
#if defined BUILD_LUA_CAIRO || defined BUILD_LUA_IMLIB2 || BUILD_LUA_RSVG
<< _("\n Lua bindings:\n")
#endif
#ifdef BUILD_LUA_CAIRO
<< _(" * Cairo\n")
#endif /* BUILD_LUA_CAIRO */
#ifdef BUILD_LUA_IMLIB2
<< _(" * Imlib2\n")
#endif /* BUILD_LUA_IMLIB2 */
#ifdef BUILD_LUA_RSVG
<< _(" * RSVG\n")
#endif /* BUILD_LUA_RSVG */
#ifdef BUILD_X11
<< _(" X11:\n")
#ifdef BUILD_XDAMAGE
<< _(" * Xdamage extension\n")
#endif /* BUILD_XDAMAGE */
#ifdef BUILD_XINERAMA
<< _(" * Xinerama extension (virtual display)\n")
#endif /* BUILD_XINERAMA */
#ifdef BUILD_XSHAPE
<< _(" * Xshape extension (click through)\n")
#endif /* BUILD_XSHAPE */
#ifdef BUILD_XDBE
<< _(" * XDBE (double buffer extension)\n")
#endif /* BUILD_XDBE */
#ifdef BUILD_XFT
<< _(" * Xft\n")
#endif /* BUILD_XFT */
#ifdef BUILD_ARGB
<< _(" * ARGB visual\n")
#endif /* BUILD_ARGB */
#ifdef OWN_WINDOW
<< _(" * Own window\n")
#endif
#endif /* BUILD_X11 */
#ifdef BUILD_HSV_GRADIENT
<< _(" * HSV Gradient\n")
#endif /* BUILD_HSV_GRADIENT */
#if defined BUILD_AUDACIOUS || defined BUILD_CMUS || defined BUILD_MPD || \
defined BUILD_MOC || defined BUILD_XMMS2
<< _("\n Music detection:\n")
#endif
#ifdef BUILD_AUDACIOUS
<< _(" * Audacious\n")
#endif /* BUILD_AUDACIOUS */
#ifdef BUILD_CMUS
<< _(" * CMUS\n")
#endif /* BUILD_CMUS */
#ifdef BUILD_MPD
<< _(" * MPD\n")
#endif /* BUILD_MPD */
#ifdef BUILD_MOC
<< _(" * MOC\n")
#endif /* BUILD_MOC */
#ifdef BUILD_XMMS2
<< _(" * XMMS2\n")
#endif /* BUILD_XMMS2 */
<< _("\n Default values:\n") << " * Netdevice: " DEFAULTNETDEV "\n"
<< " * Local configfile: " CONFIG_FILE "\n"
#ifdef BUILD_I18N
<< " * Localedir: " LOCALE_DIR "\n"
#endif /* BUILD_I18N */
#ifdef BUILD_HTTP
<< " * HTTP-port: " << HTTPPORT << "\n"
#endif /* BUILD_HTTP */
<< " * Maximum netdevices: " << MAX_NET_INTERFACES << "\n"
<< " * Maximum text size: " << MAX_USER_TEXT_DEFAULT << "\n"
<< " * Size text buffer: " << DEFAULT_TEXT_BUFFER_SIZE << "\n";
}
static void print_help(const char *prog_name) {
printf("Usage: %s [OPTION]...\n" PACKAGE_NAME
" is a system monitor that renders text on desktop or to own "
"transparent\n"
"window. Command line options will override configurations defined in "
"config\n"
"file.\n"
" -v, --version version\n"
" -q, --quiet quiet mode\n"
" -D, --debug increase debugging output, ie. -DD for "
"more debugging\n"
" -c, --config=FILE config file to load\n"
#ifdef BUILD_BUILTIN_CONFIG
" -C, --print-config print the builtin default config to "
"stdout\n"
" e.g. 'conky -C > ~/.conkyrc' will "
"create a new default config\n"
#endif
" -d, --daemonize daemonize, fork to background\n"
" -h, --help help\n"
#ifdef BUILD_X11
" -a, --alignment=ALIGNMENT text alignment on screen, "
"{top,bottom,middle}_{left,right,middle}\n"
" -X, --display=DISPLAY X11 display to use\n"
" -m, --xinerama-head=N Xinerama monitor index (0=first)\n"
" -f, --font=FONT font to use\n"
#ifdef OWN_WINDOW
" -o, --own-window create own window to draw\n"
#endif
" -b, --double-buffer double buffer (prevents flickering)\n"
" -w, --window-id=WIN_ID window id to draw\n"
" -x X x position\n"
" -y Y y position\n"
#endif /* BUILD_X11 */
" -t, --text=TEXT text to render, remember single quotes, "
"like -t '$uptime'\n"
" -u, --interval=SECS update interval\n"
" -i COUNT number of times to update " PACKAGE_NAME
" (and quit)\n"
" -p, --pause=SECS pause for SECS seconds at startup "
"before doing anything\n",
prog_name);
}
inline void reset_optind() {
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__)
optind = optreset = 1;
#else
optind = 0;
#endif
}
int main(int argc, char **argv) {
#ifdef BUILD_I18N
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE_NAME, LOCALE_DIR);
textdomain(PACKAGE_NAME);
#endif
argc_copy = argc;
argv_copy = argv;
g_sigterm_pending = 0;
g_sighup_pending = 0;
g_sigusr2_pending = 0;
#ifdef BUILD_CURL
struct curl_global_initializer {
curl_global_initializer() {
if (curl_global_init(CURL_GLOBAL_ALL)) {
NORM_ERR(
"curl_global_init() failed, you may not be able to use curl "
"variables");
}
}
~curl_global_initializer() { curl_global_cleanup(); }
};
curl_global_initializer curl_global;
#endif
/* handle command line parameters that don't change configs */
#ifdef BUILD_X11
if (!setlocale(LC_CTYPE, "")) {
NORM_ERR("Can't set the specified locale!\nCheck LANG, LC_CTYPE, LC_ALL.");
}
#endif /* BUILD_X11 */
while (1) {
int c = getopt_long(argc, argv, getopt_string, longopts, nullptr);
if (c == -1) { break; }
switch (c) {
case 'D':
global_debug_level++;
break;
case 'v':
case 'V':
print_version();
return EXIT_SUCCESS;
case 'c':
current_config = optarg;
break;
case 'q':
if (freopen("/dev/null", "w", stderr) == nullptr) {
CRIT_ERR(nullptr, nullptr, "could not open /dev/null as stderr!");
}
break;
case 'h':
print_help(argv[0]);
return 0;
#ifdef BUILD_BUILTIN_CONFIG
case 'C':
std::cout << defconfig;
return 0;
#endif
#ifdef BUILD_X11
case 'w':
window.window = strtol(optarg, nullptr, 0);
break;
#endif /* BUILD_X11 */
case '?':
return EXIT_FAILURE;
}
}
try {
set_current_config();
state = std::make_unique<lua::state>();
conky::export_symbols(*state);
setup_inotify();
initialisation(argc, argv);
first_pass = 0; /* don't ever call fork() again */
main_loop();
} catch (fork_throw &e) {
return EXIT_SUCCESS;
} catch (unknown_arg_throw &e) {
return EXIT_FAILURE;
} catch (obj_create_error &e) {
std::cerr << e.what() << std::endl;
clean_up(nullptr, nullptr);
return EXIT_FAILURE;
} catch (std::exception &e) {
std::cerr << PACKAGE_NAME ": " << e.what() << std::endl;
return EXIT_FAILURE;
}
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
kvm_close(kd);
#endif
#ifdef LEAKFREE_NCURSES
_nc_free_and_exit(0); // hide false memleaks
#endif
return 0;
}