2 * vim:ts=4:sw=4:expandtab
4 * i3bar - an xcb-based status- and ws-bar for i3
6 * © 2010-2011 Axel Wagner and contributors
8 * See file LICNSE for license information
24 * Glob path, i.e. expand ~
27 char *expand_path(char *path) {
28 static glob_t globbuf;
29 if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0) {
30 ELOG("glob() failed\n");
33 char *result = sstrdup(globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path);
38 void print_usage(char *elf_name) {
39 printf("Usage: %s [-b bar_id] [-s sock_path] [-h] [-v]\n", elf_name);
41 printf("-b <bar_id>\tBar ID for which to get the configuration\n");
42 printf("-s <sock_path>\tConnect to i3 via <sock_path>\n");
43 printf("-h\t\tDisplay this help-message and exit\n");
44 printf("-v\t\tDisplay version number and exit\n");
46 printf(" PLEASE NOTE that i3bar will be automatically started by i3\n"
47 " as soon as there is a 'bar' configuration block in your\n"
48 " config file. You should never need to start it manually.\n");
53 * We watch various signals, that are there to make our application stop.
54 * If we get one of those, we ev_unloop() and invoke the cleanup-routines
58 void sig_cb(struct ev_loop *loop, ev_signal *watcher, int revents) {
59 switch (watcher->signum) {
61 DLOG("Got a SIGTERM, stopping\n");
64 DLOG("Got a SIGINT, stopping\n");
67 DLOG("Got a SIGHUP, stopping\n");
69 ev_unloop(main_loop, EVUNLOOP_ALL);
72 int main(int argc, char **argv) {
75 char *socket_path = getenv("I3SOCK");
76 char *i3_default_sock_path = "/tmp/i3-ipc.sock";
78 /* Initialize the standard config to use 0 as default */
79 memset(&config, '\0', sizeof(config_t));
81 static struct option long_opt[] = {
82 { "socket", required_argument, 0, 's' },
83 { "bar_id", required_argument, 0, 0 },
84 { "help", no_argument, 0, 'h' },
85 { "version", no_argument, 0, 'v' },
89 while ((opt = getopt_long(argc, argv, "s:hv", long_opt, &option_index)) != -1) {
92 socket_path = expand_path(optarg);
95 printf("i3bar version " I3_VERSION " © 2010-2011 Axel Wagner and contributors\n");
99 if (!strcmp(long_opt[option_index].name, "bar_id")) {
101 config.bar_id = sstrdup(optarg);
105 print_usage(argv[0]);
111 if (!config.bar_id) {
112 /* TODO: maybe we want -f which will automatically ask i3 for the first
113 * configured bar (and error out if there are too many)? */
114 ELOG("No bar_id passed. Please let i3 start i3bar or specify --bar_id\n");
118 main_loop = ev_default_loop(0);
120 char *atom_sock_path = init_xcb_early();
122 if (socket_path == NULL) {
123 socket_path = atom_sock_path;
126 if (socket_path == NULL) {
127 ELOG("No Socket Path Specified, default to %s\n", i3_default_sock_path);
128 socket_path = expand_path(i3_default_sock_path);
132 if (init_connection(socket_path)) {
133 /* Request the bar configuration. When it arrives, we fill the config array. */
134 i3_send_msg(I3_IPC_MESSAGE_TYPE_GET_BAR_CONFIG, config.bar_id);
137 /* We listen to SIGTERM/QUIT/INT and try to exit cleanly, by stopping the main-loop.
138 * We only need those watchers on the stack, so putting them on the stack saves us
139 * some calls to free() */
140 ev_signal *sig_term = smalloc(sizeof(ev_signal));
141 ev_signal *sig_int = smalloc(sizeof(ev_signal));
142 ev_signal *sig_hup = smalloc(sizeof(ev_signal));
144 ev_signal_init(sig_term, &sig_cb, SIGTERM);
145 ev_signal_init(sig_int, &sig_cb, SIGINT);
146 ev_signal_init(sig_hup, &sig_cb, SIGHUP);
148 ev_signal_start(main_loop, sig_term);
149 ev_signal_start(main_loop, sig_int);
150 ev_signal_start(main_loop, sig_hup);
152 /* From here on everything should run smooth for itself, just start listening for
153 * events. We stop simply stop the event-loop, when we are finished */
154 ev_loop(main_loop, 0);
158 FREE(statusline_buffer);
161 ev_default_destroy();