#include <string.h>
#include <sys/stat.h>
#include <stdlib.h>
+#include <glob.h>
#include "i3.h"
#include "util.h"
#include "config.h"
+#include "xcb.h"
Config config;
/*
- * Reads the configuration from the given file
+ * This function resolves ~ in pathnames.
*
*/
-void load_configuration(const char *configfile) {
+static char *glob_path(const char *path) {
+ static glob_t globbuf;
+ if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0)
+ die("glob() failed");
+ char *result = sstrdup(globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path);
+ globfree(&globbuf);
+ return result;
+}
+
+/*
+ * This function does a very simple replacement of each instance of key with value.
+ *
+ */
+static void replace_variable(char *buffer, const char *key, const char *value) {
+ char *pos;
+ /* To prevent endless recursions when the user makes an error configuring,
+ * we stop after 100 replacements. That should be vastly more than enough. */
+ int c = 0;
+ LOG("Replacing %s with %s\n", key, value);
+ while ((pos = strcasestr(buffer, key)) != NULL && c++ < 100) {
+ LOG("replacing variable %s in \"%s\" with \"%s\"\n", key, buffer, value);
+ char *rest = pos + strlen(key);
+ *pos = '\0';
+ char *replaced;
+ asprintf(&replaced, "%s%s%s", buffer, value, rest);
+ /* Hm, this is a bit ugly, but sizeof(buffer) = 4, as it’s just a pointer.
+ * So we need to hard-code the dimensions here. */
+ strncpy(buffer, replaced, 1026);
+ free(replaced);
+ }
+}
+
+/*
+ * Reads the configuration from ~/.i3/config or /etc/i3/config if not found.
+ *
+ * If you specify override_configpath, only this path is used to look for a
+ * configuration file.
+ *
+ */
+void load_configuration(xcb_connection_t *conn, const char *override_configpath) {
+ SLIST_HEAD(variables_head, Variable) variables;
+
#define OPTION_STRING(name) \
if (strcasecmp(key, #name) == 0) { \
config.name = sstrdup(value); \
if (config.name == NULL) \
die("You did not specify required configuration option " #name "\n");
+#define OPTION_COLORTRIPLE(opt, name) \
+ if (strcasecmp(key, opt) == 0) { \
+ char border[8], background[8], text[8]; \
+ memset(border, 0, sizeof(border)); \
+ memset(background, 0, sizeof(background)); \
+ memset(text, 0, sizeof(text)); \
+ border[0] = background[0] = text[0] = '#'; \
+ if (sscanf(value, "#%06[0-9a-fA-F] #%06[0-9a-fA-F] #%06[0-9a-fA-F]", \
+ border + 1, background + 1, text + 1) != 3 || \
+ strlen(border) != 7 || \
+ strlen(background) != 7 || \
+ strlen(text) != 7) \
+ die("invalid color code line: %s\n", value); \
+ config.name.border = get_colorpixel(conn, border); \
+ config.name.background = get_colorpixel(conn, background); \
+ config.name.text = get_colorpixel(conn, text); \
+ continue; \
+ }
+
/* Clear the old config or initialize the data structure */
memset(&config, 0, sizeof(config));
- /* check if the file exists */
- struct stat buf;
- if (stat(configfile, &buf) < 0)
- return;
+ SLIST_INIT(&variables);
+
+ /* Initialize default colors */
+ config.client.focused.border = get_colorpixel(conn, "#4c7899");
+ config.client.focused.background = get_colorpixel(conn, "#285577");
+ config.client.focused.text = get_colorpixel(conn, "#ffffff");
- FILE *handle = fopen(configfile, "r");
- if (handle == NULL)
- die("Could not open configfile\n");
+ config.client.focused_inactive.border = get_colorpixel(conn, "#4c7899");
+ config.client.focused_inactive.background = get_colorpixel(conn, "#555555");
+ config.client.focused_inactive.text = get_colorpixel(conn, "#ffffff");
+
+ config.client.unfocused.border = get_colorpixel(conn, "#333333");
+ config.client.unfocused.background = get_colorpixel(conn, "#222222");
+ config.client.unfocused.text = get_colorpixel(conn, "#888888");
+
+ config.bar.focused.border = get_colorpixel(conn, "#4c7899");
+ config.bar.focused.background = get_colorpixel(conn, "#285577");
+ config.bar.focused.text = get_colorpixel(conn, "#ffffff");
+
+ config.bar.unfocused.border = get_colorpixel(conn, "#333333");
+ config.bar.unfocused.background = get_colorpixel(conn, "#222222");
+ config.bar.unfocused.text = get_colorpixel(conn, "#888888");
+
+ FILE *handle;
+ if (override_configpath != NULL) {
+ if ((handle = fopen(override_configpath, "r")) == NULL)
+ die("Could not open configfile \"%s\".\n", override_configpath);
+ } else {
+ /* We first check for ~/.i3/config, then for /etc/i3/config */
+ char *globbed = glob_path("~/.i3/config");
+ if ((handle = fopen(globbed, "r")) == NULL)
+ if ((handle = fopen("/etc/i3/config", "r")) == NULL)
+ die("Neither \"%s\" nor /etc/i3/config could be opened\n", globbed);
+ free(globbed);
+ }
char key[512], value[512], buffer[1026];
while (!feof(handle)) {
die("Could not read configuration file\n");
}
+ if (config.terminal != NULL)
+ replace_variable(buffer, "$terminal", config.terminal);
+
+ /* Replace all custom variables */
+ struct Variable *current;
+ SLIST_FOREACH(current, &variables, variables)
+ replace_variable(buffer, current->key, current->value);
+
/* sscanf implicitly strips whitespace. Also, we skip comments and empty lines. */
if (sscanf(buffer, "%s %[^\n]", key, value) < 1 ||
key[0] == '#' || strlen(key) < 3)
OPTION_STRING(terminal);
OPTION_STRING(font);
+ /* Colors */
+ OPTION_COLORTRIPLE("client.focused", client.focused);
+ OPTION_COLORTRIPLE("client.focused_inactive", client.focused_inactive);
+ OPTION_COLORTRIPLE("client.unfocused", client.unfocused);
+ OPTION_COLORTRIPLE("bar.focused", bar.focused);
+ OPTION_COLORTRIPLE("bar.unfocused", bar.unfocused);
+
+ /* exec-lines (autostart) */
+ if (strcasecmp(key, "exec") == 0) {
+ struct Autostart *new = smalloc(sizeof(struct Autostart));
+ new->command = sstrdup(value);
+ TAILQ_INSERT_TAIL(&autostarts, new, autostarts);
+ continue;
+ }
+
+ /* key bindings */
if (strcasecmp(key, "bind") == 0) {
#define CHECK_MODIFIER(name) \
if (strncasecmp(walk, #name, strlen(#name)) == 0) { \
if (!rest || *rest != ' ')
die("Invalid binding\n");
rest++;
- printf("keycode = %d, modifiers = %d, command = *%s*\n", keycode, modifiers, rest);
+ LOG("keycode = %d, modifiers = %d, command = *%s*\n", keycode, modifiers, rest);
Binding *new = smalloc(sizeof(Binding));
new->keycode = keycode;
new->mods = modifiers;
continue;
}
- fprintf(stderr, "Unknown configfile option: %s\n", key);
- exit(1);
+ if (strcasecmp(key, "floating_modifier") == 0) {
+ char *walk = value;
+ uint32_t modifiers = 0;
+
+ while (*walk != '\0') {
+ /* Need to check for Mod1-5, Ctrl, Shift, Mode_switch */
+ CHECK_MODIFIER(SHIFT);
+ CHECK_MODIFIER(CONTROL);
+ CHECK_MODIFIER(MODE_SWITCH);
+ CHECK_MODIFIER(MOD1);
+ CHECK_MODIFIER(MOD2);
+ CHECK_MODIFIER(MOD3);
+ CHECK_MODIFIER(MOD4);
+ CHECK_MODIFIER(MOD5);
+
+ /* No modifier found? Then we’re done with this step */
+ break;
+ }
+
+ LOG("Floating modifiers = %d\n", modifiers);
+ config.floating_modifier = modifiers;
+ continue;
+ }
+
+ /* assign window class[/window title] → workspace */
+ if (strcasecmp(key, "assign") == 0) {
+ LOG("assign: \"%s\"\n", value);
+ char *class_title = sstrdup(value);
+ char *target;
+
+ /* If the window class/title is quoted we skip quotes */
+ if (class_title[0] == '"') {
+ class_title++;
+ char *end = strchr(class_title, '"');
+ if (end == NULL)
+ die("Malformed assignment, couldn't find terminating quote\n");
+ *end = '\0';
+ } else {
+ /* If it is not quoted, we terminate it at the first space */
+ char *end = strchr(class_title, ' ');
+ if (end == NULL)
+ die("Malformed assignment, couldn't find terminating space\n");
+ *end = '\0';
+ }
+
+ /* Strip trailing whitespace */
+ while (strlen(value) > 0 && value[strlen(value)-1] == ' ')
+ value[strlen(value)-1] = '\0';
+
+ /* The target is the last argument separated by a space */
+ if ((target = strrchr(value, ' ')) == NULL)
+ die("Malformed assignment, couldn't find target\n");
+ target++;
+
+ if (*target != '~' && (atoi(target) < 1 || atoi(target) > 10))
+ die("Malformed assignment, invalid workspace number\n");
+
+ LOG("assignment parsed: \"%s\" to \"%s\"\n", class_title, target);
+
+ struct Assignment *new = scalloc(sizeof(struct Assignment));
+ new->windowclass_title = class_title;
+ if (*target == '~')
+ new->floating = true;
+ else new->workspace = atoi(target);
+ TAILQ_INSERT_TAIL(&assignments, new, assignments);
+ continue;
+ }
+
+ /* set a custom variable */
+ if (strcasecmp(key, "set") == 0) {
+ if (value[0] != '$')
+ die("Malformed variable assignment, name has to start with $\n");
+
+ /* get key/value for this variable */
+ char *v_key = value, *v_value;
+ if ((v_value = strstr(value, " ")) == NULL)
+ die("Malformed variable assignment, need a value\n");
+
+ *(v_value++) = '\0';
+
+ struct Variable *new = scalloc(sizeof(struct Variable));
+ new->key = sstrdup(v_key);
+ new->value = sstrdup(v_value);
+ SLIST_INSERT_HEAD(&variables, new, variables);
+ LOG("Got new variable %s = %s\n", v_key, v_value);
+ continue;
+ }
+
+ die("Unknown configfile option: %s\n", key);
}
fclose(handle);
REQUIRED_OPTION(terminal);
REQUIRED_OPTION(font);
+
+ while (!SLIST_EMPTY(&variables)) {
+ struct Variable *v = SLIST_FIRST(&variables);
+ SLIST_REMOVE_HEAD(&variables, variables);
+ free(v->key);
+ free(v->value);
+ free(v);
+ }
+
return;
}