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comparison config.c @ 1852:a4cae960fd08

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Allow config file to be saved with executable for "portable" setups
author Michael Pavone <pavone@retrodev.com>
date Wed, 24 Apr 2019 19:08:49 -0700
parents eda8df5bc74c
children 93960907807a
comparison
equal deleted inserted replaced
1851:419b458f93cd 1852:a4cae960fd08
223 } 223 }
224 #endif 224 #endif
225 return ret; 225 return ret;
226 } 226 }
227 227
228 tern_node *load_overrideable_config(char *name, char *bundled_name) 228 tern_node *load_overrideable_config(char *name, char *bundled_name, uint8_t *used_config_dir)
229 { 229 {
230 char const *confdir = get_config_dir(); 230 char const *confdir = get_config_dir();
231 char *confpath = NULL; 231 char *confpath = NULL;
232 tern_node *ret; 232 tern_node *ret;
233 if (confdir) { 233 if (confdir) {
234 confpath = path_append(confdir, name); 234 confpath = path_append(confdir, name);
235 ret = parse_config_file(confpath); 235 ret = parse_config_file(confpath);
236 if (ret) { 236 }
237 free(confpath); 237 free(confpath);
238 return ret; 238 if (used_config_dir) {
239 } 239 *used_config_dir = ret != NULL;
240 } 240 }
241 241
242 ret = parse_bundled_config(bundled_name); 242 if (!ret) {
243 if (ret) { 243 ret = parse_bundled_config(name);
244 free(confpath); 244 if (!ret) {
245 return ret; 245 ret = parse_bundled_config(bundled_name);
246 } 246 }
247 return NULL; 247 }
248 } 248
249 249 return ret;
250 }
251
252 static uint8_t app_config_in_config_dir;
250 tern_node *load_config() 253 tern_node *load_config()
251 { 254 {
252 char const *confdir = get_config_dir(); 255 tern_node *ret = load_overrideable_config("blastem.cfg", "default.cfg", &app_config_in_config_dir);
253 char *confpath = NULL; 256
254 tern_node *ret = load_overrideable_config("blastem.cfg", "default.cfg"); 257 if (!ret) {
255 if (confdir) { 258 if (get_config_dir()) {
256 confpath = path_append(confdir, "blastem.cfg"); 259 fatal_error("Failed to find a config file at %s or in the blastem executable directory\n", get_config_dir());
257 ret = parse_config_file(confpath); 260 } else {
258 if (ret) { 261 fatal_error("Failed to find a config file in the BlastEm executable directory and the config directory path could not be determined\n");
259 free(confpath); 262 }
260 return ret; 263 }
261 } 264 return ret;
262 } 265 }
263 266
264 ret = parse_bundled_config("default.cfg"); 267 void persist_config_at(tern_node *app_config, tern_node *to_save, char *fname)
265 if (ret) { 268 {
266 free(confpath); 269 char*use_exe_dir = tern_find_path_default(app_config, "ui\0config_in_exe_dir\0", (tern_val){.ptrval = "off"}, TVAL_PTR).ptrval;
267 return ret; 270 char *confpath;
268 } 271 if (!strcmp(use_exe_dir, "on")) {
269 272 confpath = path_append(get_exe_dir(), fname);
270 if (get_config_dir()) { 273 if (app_config == to_save && app_config_in_config_dir) {
271 fatal_error("Failed to find a config file at %s or in the blastem executable directory\n", get_config_dir()); 274 //user switched to "portable" configs this session and there is an
275 //existing config file in the user-specific config directory
276 //delete it so we don't end up loading it next time
277 char *oldpath = path_append(get_config_dir(), fname);
278 delete_file(oldpath);
279 free(oldpath);
280 }
272 } else { 281 } else {
273 fatal_error("Failed to find a config file in the BlastEm executable directory and the config directory path could not be determined\n"); 282 char const *confdir = get_config_dir();
274 } 283 if (!confdir) {
275 //this will never get reached, but the compiler doesn't know that. Let's make it happy 284 fatal_error("Failed to locate config file directory\n");
276 return NULL; 285 }
277 } 286 ensure_dir_exists(confdir);
278 287 confpath = path_append(confdir, fname);
279 void persist_config_at(tern_node *config, char *fname) 288 }
280 { 289 if (!serialize_config_file(to_save, confpath)) {
281 char const *confdir = get_config_dir();
282 if (!confdir) {
283 fatal_error("Failed to locate config file directory\n");
284 }
285 ensure_dir_exists(confdir);
286 char *confpath = path_append(confdir, fname);
287 if (!serialize_config_file(config, confpath)) {
288 fatal_error("Failed to write config to %s\n", confpath); 290 fatal_error("Failed to write config to %s\n", confpath);
289 } 291 }
290 free(confpath); 292 free(confpath);
291 } 293 }
292 294
293 void persist_config(tern_node *config) 295 void persist_config(tern_node *config)
294 { 296 {
295 persist_config_at(config, "blastem.cfg"); 297 persist_config_at(config, config, "blastem.cfg");
296 } 298 }
297 299
298 char **get_extension_list(tern_node *config, uint32_t *num_exts_out) 300 char **get_extension_list(tern_node *config, uint32_t *num_exts_out)
299 { 301 {
300 char *ext_filter = strdup(tern_find_path_default(config, "ui\0extensions\0", (tern_val){.ptrval = "bin gen md smd sms gg"}, TVAL_PTR).ptrval); 302 char *ext_filter = strdup(tern_find_path_default(config, "ui\0extensions\0", (tern_val){.ptrval = "bin gen md smd sms gg"}, TVAL_PTR).ptrval);