137 lines
4.8 KiB
C
137 lines
4.8 KiB
C
/*
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* vim:ts=8:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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*
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* © 2009 Michael Stapelberg and contributors
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*
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* See file LICENSE for license information.
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <stdlib.h>
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#include <glob.h>
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#include "i3.h"
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#include "util.h"
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#include "config.h"
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Config config;
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/*
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* This function resolves ~ in pathnames.
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*
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*/
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static char *glob_path(const char *path) {
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static glob_t globbuf;
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if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0)
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die("glob() failed");
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char *result = sstrdup(globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path);
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globfree(&globbuf);
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return result;
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}
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/*
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* Reads the configuration from ~/.i3/config or /etc/i3/config if not found.
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*
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* If you specify override_configpath, only this path is used to look for a
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* configuration file.
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*
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*/
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void load_configuration(const char *override_configpath) {
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#define OPTION_STRING(name) \
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if (strcasecmp(key, #name) == 0) { \
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config.name = sstrdup(value); \
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continue; \
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}
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#define REQUIRED_OPTION(name) \
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if (config.name == NULL) \
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die("You did not specify required configuration option " #name "\n");
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/* Clear the old config or initialize the data structure */
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memset(&config, 0, sizeof(config));
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FILE *handle;
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if (override_configpath != NULL) {
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if ((handle = fopen(override_configpath, "r")) == NULL)
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die("Could not open configfile \"%s\".\n", override_configpath);
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} else {
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/* We first check for ~/.i3/config, then for /etc/i3/config */
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char *globbed = glob_path("~/.i3/config");
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if ((handle = fopen(globbed, "r")) == NULL)
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if ((handle = fopen("/etc/i3/config", "r")) == NULL)
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die("Neither \"%s\" nor /etc/i3/config could be opened\n", globbed);
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free(globbed);
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}
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char key[512], value[512], buffer[1026];
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while (!feof(handle)) {
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if (fgets(buffer, 1024, handle) == NULL) {
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/* fgets returns NULL on EOF and on error, so see which one it is. */
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if (feof(handle))
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break;
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die("Could not read configuration file\n");
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}
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/* sscanf implicitly strips whitespace. Also, we skip comments and empty lines. */
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if (sscanf(buffer, "%s %[^\n]", key, value) < 1 ||
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key[0] == '#' || strlen(key) < 3)
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continue;
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OPTION_STRING(terminal);
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OPTION_STRING(font);
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if (strcasecmp(key, "bind") == 0) {
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#define CHECK_MODIFIER(name) \
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if (strncasecmp(walk, #name, strlen(#name)) == 0) { \
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modifiers |= BIND_##name; \
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walk += strlen(#name) + 1; \
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continue; \
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}
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char *walk = value, *rest;
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uint32_t modifiers = 0;
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while (*walk != '\0') {
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/* Need to check for Mod1-5, Ctrl, Shift, Mode_switch */
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CHECK_MODIFIER(SHIFT);
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CHECK_MODIFIER(CONTROL);
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CHECK_MODIFIER(MODE_SWITCH);
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CHECK_MODIFIER(MOD1);
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CHECK_MODIFIER(MOD2);
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CHECK_MODIFIER(MOD3);
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CHECK_MODIFIER(MOD4);
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CHECK_MODIFIER(MOD5);
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/* No modifier found? Then we’re done with this step */
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break;
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}
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/* Now check for the keycode */
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int keycode = strtol(walk, &rest, 10);
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if (!rest || *rest != ' ')
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die("Invalid binding\n");
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rest++;
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LOG("keycode = %d, modifiers = %d, command = *%s*\n", keycode, modifiers, rest);
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Binding *new = smalloc(sizeof(Binding));
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new->keycode = keycode;
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new->mods = modifiers;
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new->command = sstrdup(rest);
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TAILQ_INSERT_TAIL(&bindings, new, bindings);
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continue;
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}
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fprintf(stderr, "Unknown configfile option: %s\n", key);
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exit(1);
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}
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fclose(handle);
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REQUIRED_OPTION(terminal);
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REQUIRED_OPTION(font);
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return;
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}
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