swayfx/sway/config.c

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3.5 KiB
C
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#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include "readline.h"
#include "stringop.h"
#include "list.h"
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#include "log.h"
#include "commands.h"
#include "config.h"
struct sway_config *config;
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bool load_config() {
sway_log(L_INFO, "Loading config");
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// TODO: Allow use of more config file locations
const char *name = "/.sway/config";
const char *home = getenv("HOME");
char *temp = malloc(strlen(home) + strlen(name) + 1);
strcpy(temp, home);
strcat(temp, name);
FILE *f = fopen(temp, "r");
if (!f) {
fprintf(stderr, "Unable to open %s for reading", temp);
free(temp);
return false;
}
free(temp);
bool config_load_success;
if (config) {
config_load_success = read_config(f, true);
} else {
config_load_success = read_config(f, false);
}
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fclose(f);
return config_load_success;
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}
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void config_defaults(struct sway_config *config) {
config->symbols = create_list();
config->modes = create_list();
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config->cmd_queue = create_list();
config->current_mode = malloc(sizeof(struct sway_mode));
config->current_mode->name = NULL;
config->current_mode->bindings = create_list();
list_add(config->modes, config->current_mode);
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// Flags
config->focus_follows_mouse = true;
config->mouse_warping = true;
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config->reloading = false;
config->active = false;
config->failed = false;
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}
bool read_config(FILE *file, bool is_active) {
struct sway_config *temp_config = malloc(sizeof(struct sway_config));
config_defaults(temp_config);
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if (is_active) {
sway_log(L_DEBUG, "Performing configuration file reload");
temp_config->reloading = true;
temp_config->active = true;
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}
bool success = true;
int temp_depth = 0; // Temporary: skip all config sections with depth
while (!feof(file)) {
int _;
char *line = read_line(file);
line = strip_whitespace(line, &_);
line = strip_comments(line);
if (!line[0]) {
goto _continue;
}
if (temp_depth && line[0] == '}') {
temp_depth--;
goto _continue;
}
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// Any command which would require wlc to be initialized
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// should be queued for later execution
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list_t *args = split_string(line, " ");
if (!is_active && (
strcmp("workspace", args->items[0]) == 0 ||
strcmp("exec", args->items[0]) == 0 ||
strcmp("exec_always", args->items[0]) == 0 )) {
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sway_log(L_DEBUG, "Deferring command %s", line);
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char *cmd = malloc(strlen(line) + 1);
strcpy(cmd, line);
list_add(temp_config->cmd_queue, cmd);
} else if (!temp_depth && !handle_command(temp_config, line)) {
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sway_log(L_DEBUG, "Config load failed for line %s", line);
success = false;
temp_config->failed = true;
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}
list_free(args);
_continue:
if (line && line[strlen(line) - 1] == '{') {
temp_depth++;
}
free(line);
}
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if (is_active) {
temp_config->reloading = false;
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}
config = temp_config;
return success;
}
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char *do_var_replacement(struct sway_config *config, char *str) {
// TODO: Handle escaping $ and using $ in string literals
int i;
for (i = 0; str[i]; ++i) {
if (str[i] == '$') {
// Try for match (note: this could be faster)
int j;
for (j = 0; j < config->symbols->length; ++j) {
struct sway_variable *var = config->symbols->items[j];
if (strstr(str + i, var->name) == str + i) {
// Match, do replacement
char *new_string = malloc(
strlen(str) -
strlen(var->name) +
strlen(var->value) + 1);
strncpy(new_string, str, i);
new_string[i] = 0;
strcat(new_string, var->value);
strcat(new_string, str + i + strlen(var->name));
free(str);
str = new_string;
}
}
}
}
return str;
}