aboutsummaryrefslogtreecommitdiff
path: root/sway/config.c
blob: 553cba2b18dffce1b786f91162595c710ce440f4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
#define _XOPEN_SOURCE 700 // for realpath
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <unistd.h>
#include <libgen.h>
#include <wordexp.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <signal.h>
#include <libinput.h>
#include <limits.h>
#include <dirent.h>
#include <strings.h>
#include <linux/input-event-codes.h>
#include <wlr/types/wlr_output.h>
#include "sway/input/input-manager.h"
#include "sway/input/seat.h"
#include "sway/input/switch.h"
#include "sway/commands.h"
#include "sway/config.h"
#include "sway/criteria.h"
#include "sway/desktop/transaction.h"
#include "sway/swaynag.h"
#include "sway/tree/arrange.h"
#include "sway/tree/root.h"
#include "sway/tree/workspace.h"
#include "cairo.h"
#include "pango.h"
#include "stringop.h"
#include "list.h"
#include "log.h"

struct sway_config *config = NULL;

static struct xkb_state *keysym_translation_state_create(
		struct xkb_rule_names rules) {
	struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
	struct xkb_keymap *xkb_keymap = xkb_keymap_new_from_names(
		context,
		&rules,
		XKB_KEYMAP_COMPILE_NO_FLAGS);

	xkb_context_unref(context);
	return xkb_state_new(xkb_keymap);
}

static void keysym_translation_state_destroy(
		struct xkb_state *state) {
	xkb_keymap_unref(xkb_state_get_keymap(state));
	xkb_state_unref(state);
}

static void free_mode(struct sway_mode *mode) {
	if (!mode) {
		return;
	}
	free(mode->name);
	if (mode->keysym_bindings) {
		for (int i = 0; i < mode->keysym_bindings->length; i++) {
			free_sway_binding(mode->keysym_bindings->items[i]);
		}
		list_free(mode->keysym_bindings);
	}
	if (mode->keycode_bindings) {
		for (int i = 0; i < mode->keycode_bindings->length; i++) {
			free_sway_binding(mode->keycode_bindings->items[i]);
		}
		list_free(mode->keycode_bindings);
	}
	if (mode->mouse_bindings) {
		for (int i = 0; i < mode->mouse_bindings->length; i++) {
			free_sway_binding(mode->mouse_bindings->items[i]);
		}
		list_free(mode->mouse_bindings);
	}
	if (mode->switch_bindings) {
		for (int i = 0; i < mode->switch_bindings->length; i++) {
			free_switch_binding(mode->switch_bindings->items[i]);
		}
		list_free(mode->switch_bindings);
	}
	free(mode);
}

void free_config(struct sway_config *config) {
	if (!config) {
		return;
	}

	memset(&config->handler_context, 0, sizeof(config->handler_context));

	// TODO: handle all currently unhandled lists as we add implementations
	if (config->symbols) {
		for (int i = 0; i < config->symbols->length; ++i) {
			free_sway_variable(config->symbols->items[i]);
		}
		list_free(config->symbols);
	}
	if (config->modes) {
		for (int i = 0; i < config->modes->length; ++i) {
			free_mode(config->modes->items[i]);
		}
		list_free(config->modes);
	}
	if (config->bars) {
		for (int i = 0; i < config->bars->length; ++i) {
			free_bar_config(config->bars->items[i]);
		}
		list_free(config->bars);
	}
	list_free(config->cmd_queue);
	if (config->workspace_configs) {
		for (int i = 0; i < config->workspace_configs->length; i++) {
			free_workspace_config(config->workspace_configs->items[i]);
		}
		list_free(config->workspace_configs);
	}
	if (config->output_configs) {
		for (int i = 0; i < config->output_configs->length; i++) {
			free_output_config(config->output_configs->items[i]);
		}
		list_free(config->output_configs);
	}
	if (config->swaybg_client != NULL) {
		wl_client_destroy(config->swaybg_client);
	}
	if (config->input_configs) {
		for (int i = 0; i < config->input_configs->length; i++) {
			free_input_config(config->input_configs->items[i]);
		}
		list_free(config->input_configs);
	}
	if (config->input_type_configs) {
		for (int i = 0; i < config->input_type_configs->length; i++) {
			free_input_config(config->input_type_configs->items[i]);
		}
		list_free(config->input_type_configs);
	}
	if (config->seat_configs) {
		for (int i = 0; i < config->seat_configs->length; i++) {
			free_seat_config(config->seat_configs->items[i]);
		}
		list_free(config->seat_configs);
	}
	if (config->criteria) {
		for (int i = 0; i < config->criteria->length; ++i) {
			criteria_destroy(config->criteria->items[i]);
		}
		list_free(config->criteria);
	}
	list_free(config->no_focus);
	list_free(config->active_bar_modifiers);
	list_free_items_and_destroy(config->config_chain);
	list_free(config->command_policies);
	list_free(config->feature_policies);
	list_free(config->ipc_policies);
	free(config->floating_scroll_up_cmd);
	free(config->floating_scroll_down_cmd);
	free(config->floating_scroll_left_cmd);
	free(config->floating_scroll_right_cmd);
	free(config->font);
	free(config->swaybg_command);
	free(config->swaynag_command);
	free((char *)config->current_config_path);
	free((char *)config->current_config);
	keysym_translation_state_destroy(config->keysym_translation_state);
	free(config);
}

static void destroy_removed_seats(struct sway_config *old_config,
		struct sway_config *new_config) {
	struct seat_config *seat_config;
	struct sway_seat *seat;
	int i;
	for (i = 0; i < old_config->seat_configs->length; i++) {
		seat_config = old_config->seat_configs->items[i];
		// Skip the wildcard seat config, it won't have a matching real seat.
		if (strcmp(seat_config->name, "*") == 0) {
			continue;
		}

		/* Also destroy seats that aren't present in new config */
		if (new_config && list_seq_find(new_config->seat_configs,
				seat_name_cmp, seat_config->name) < 0) {
			seat = input_manager_get_seat(seat_config->name, false);
			if (seat) {
				seat_destroy(seat);
			}
		}
	}
}

static void set_color(float dest[static 4], uint32_t color) {
	dest[0] = ((color >> 16) & 0xff) / 255.0;
	dest[1] = ((color >> 8) & 0xff) / 255.0;
	dest[2] = (color & 0xff) / 255.0;
	dest[3] = 1.0;
}

static void config_defaults(struct sway_config *config) {
	if (!(config->swaynag_command = strdup("swaynag"))) goto cleanup;
	config->swaynag_config_errors = (struct swaynag_instance){0};
	config->swaynag_config_errors.args = "--type error "
			"--message 'There are errors in your config file' "
			"--detailed-message "
			"--button-no-terminal 'Exit sway' 'swaymsg exit' "
			"--button-no-terminal 'Reload sway' 'swaymsg reload'";
	config->swaynag_config_errors.detailed = true;

	if (!(config->symbols = create_list())) goto cleanup;
	if (!(config->modes = create_list())) goto cleanup;
	if (!(config->bars = create_list())) goto cleanup;
	if (!(config->workspace_configs = create_list())) goto cleanup;
	if (!(config->criteria = create_list())) goto cleanup;
	if (!(config->no_focus = create_list())) goto cleanup;
	if (!(config->seat_configs = create_list())) goto cleanup;
	if (!(config->output_configs = create_list())) goto cleanup;

	if (!(config->input_type_configs = create_list())) goto cleanup;
	if (!(config->input_configs = create_list())) goto cleanup;

	if (!(config->cmd_queue = create_list())) goto cleanup;

	if (!(config->current_mode = malloc(sizeof(struct sway_mode))))
		goto cleanup;
	if (!(config->current_mode->name = malloc(sizeof("default")))) goto cleanup;
	strcpy(config->current_mode->name, "default");
	if (!(config->current_mode->keysym_bindings = create_list())) goto cleanup;
	if (!(config->current_mode->keycode_bindings = create_list())) goto cleanup;
	if (!(config->current_mode->mouse_bindings = create_list())) goto cleanup;
	if (!(config->current_mode->switch_bindings = create_list())) goto cleanup;
	list_add(config->modes, config->current_mode);

	config->floating_mod = 0;
	config->floating_mod_inverse = false;
	config->dragging_key = BTN_LEFT;
	config->resizing_key = BTN_RIGHT;

	if (!(config->floating_scroll_up_cmd = strdup(""))) goto cleanup;
	if (!(config->floating_scroll_down_cmd = strdup(""))) goto cleanup;
	if (!(config->floating_scroll_left_cmd = strdup(""))) goto cleanup;
	if (!(config->floating_scroll_right_cmd = strdup(""))) goto cleanup;
	config->default_layout = L_NONE;
	config->default_orientation = L_NONE;
	if (!(config->font = strdup("monospace 10"))) goto cleanup;
	config->font_height = 17; // height of monospace 10
	config->urgent_timeout = 500;
	config->popup_during_fullscreen = POPUP_SMART;
	config->xwayland = XWAYLAND_MODE_LAZY;

	config->titlebar_border_thickness = 1;
	config->titlebar_h_padding = 5;
	config->titlebar_v_padding = 4;

	// floating view
	config->floating_maximum_width = 0;
	config->floating_maximum_height = 0;
	config->floating_minimum_width = 75;
	config->floating_minimum_height = 50;

	// Flags
	config->focus_follows_mouse = FOLLOWS_YES;
	config->mouse_warping = WARP_OUTPUT;
	config->focus_wrapping = WRAP_YES;
	config->validating = false;
	config->reloading = false;
	config->active = false;
	config->failed = false;
	config->auto_back_and_forth = false;
	config->reading = false;
	config->show_marks = true;
	config->title_align = ALIGN_LEFT;
	config->tiling_drag = true;
	config->tiling_drag_threshold = 9;

	config->smart_gaps = false;
	config->gaps_inner = 0;
	config->gaps_outer.top = 0;
	config->gaps_outer.right = 0;
	config->gaps_outer.bottom = 0;
	config->gaps_outer.left = 0;

	if (!(config->active_bar_modifiers = create_list())) goto cleanup;

	if (!(config->swaybg_command = strdup("swaybg"))) goto cleanup;

	if (!(config->config_chain = create_list())) goto cleanup;
	config->current_config_path = NULL;
	config->current_config = NULL;

	// borders
	config->border = B_NORMAL;
	config->floating_border = B_NORMAL;
	config->border_thickness = 2;
	config->floating_border_thickness = 2;
	config->hide_edge_borders = E_NONE;
	config->hide_edge_borders_smart = ESMART_OFF;
	config->hide_lone_tab = false;

	// border colors
	set_color(config->border_colors.focused.border, 0x4C7899);
	set_color(config->border_colors.focused.background, 0x285577);
	set_color(config->border_colors.focused.text, 0xFFFFFFFF);
	set_color(config->border_colors.focused.indicator, 0x2E9EF4);
	set_color(config->border_colors.focused.child_border, 0x285577);

	set_color(config->border_colors.focused_inactive.border, 0x333333);
	set_color(config->border_colors.focused_inactive.background, 0x5F676A);
	set_color(config->border_colors.focused_inactive.text, 0xFFFFFFFF);
	set_color(config->border_colors.focused_inactive.indicator, 0x484E50);
	set_color(config->border_colors.focused_inactive.child_border, 0x5F676A);

	set_color(config->border_colors.unfocused.border, 0x333333);
	set_color(config->border_colors.unfocused.background, 0x222222);
	set_color(config->border_colors.unfocused.text, 0x88888888);
	set_color(config->border_colors.unfocused.indicator, 0x292D2E);
	set_color(config->border_colors.unfocused.child_border, 0x222222);

	set_color(config->border_colors.urgent.border, 0x2F343A);
	set_color(config->border_colors.urgent.background, 0x900000);
	set_color(config->border_colors.urgent.text, 0xFFFFFFFF);
	set_color(config->border_colors.urgent.indicator, 0x900000);
	set_color(config->border_colors.urgent.child_border, 0x900000);

	set_color(config->border_colors.placeholder.border, 0x000000);
	set_color(config->border_colors.placeholder.background, 0x0C0C0C);
	set_color(config->border_colors.placeholder.text, 0xFFFFFFFF);
	set_color(config->border_colors.placeholder.indicator, 0x000000);
	set_color(config->border_colors.placeholder.child_border, 0x0C0C0C);

	set_color(config->border_colors.background, 0xFFFFFF);

	// Security
	if (!(config->command_policies = create_list())) goto cleanup;
	if (!(config->feature_policies = create_list())) goto cleanup;
	if (!(config->ipc_policies = create_list())) goto cleanup;

	// The keysym to keycode translation
	struct xkb_rule_names rules = {0};
	config->keysym_translation_state =
		keysym_translation_state_create(rules);

	return;
cleanup:
	sway_abort("Unable to allocate config structures");
}

static bool file_exists(const char *path) {
	return path && access(path, R_OK) != -1;
}

static char *get_config_path(void) {
	static const char *config_paths[] = {
		"$HOME/.sway/config",
		"$XDG_CONFIG_HOME/sway/config",
		"$HOME/.i3/config",
		"$XDG_CONFIG_HOME/i3/config",
		SYSCONFDIR "/sway/config",
		SYSCONFDIR "/i3/config",
	};

	char *config_home = getenv("XDG_CONFIG_HOME");
	if (!config_home || !*config_home) {
		config_paths[1] = "$HOME/.config/sway/config";
		config_paths[3] = "$HOME/.config/i3/config";
	}

	for (size_t i = 0; i < sizeof(config_paths) / sizeof(char *); ++i) {
		wordexp_t p;
		if (wordexp(config_paths[i], &p, WRDE_UNDEF) == 0) {
			char *path = strdup(p.we_wordv[0]);
			wordfree(&p);
			if (file_exists(path)) {
				return path;
			}
			free(path);
		}
	}

	return NULL;
}

static bool load_config(const char *path, struct sway_config *config,
		struct swaynag_instance *swaynag) {
	if (path == NULL) {
		sway_log(SWAY_ERROR, "Unable to find a config file!");
		return false;
	}

	sway_log(SWAY_INFO, "Loading config from %s", path);

	struct stat sb;
	if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) {
		sway_log(SWAY_ERROR, "%s is a directory not a config file", path);
		return false;
	}

	FILE *f = fopen(path, "r");
	if (!f) {
		sway_log(SWAY_ERROR, "Unable to open %s for reading", path);
		return false;
	}

	bool config_load_success = read_config(f, config, swaynag);
	fclose(f);

	if (!config_load_success) {
		sway_log(SWAY_ERROR, "Error(s) loading config!");
	}

	return true;
}

bool load_main_config(const char *file, bool is_active, bool validating) {
	char *path;
	if (file != NULL) {
		path = strdup(file);
	} else {
		path = get_config_path();
	}

	char *real_path = realpath(path, NULL);
	if (real_path == NULL) {
		sway_log(SWAY_DEBUG, "%s not found.", path);
		free(path);
		return false;
	}

	struct sway_config *old_config = config;
	config = calloc(1, sizeof(struct sway_config));
	if (!config) {
		sway_abort("Unable to allocate config");
	}

	config_defaults(config);
	config->validating = validating;
	if (is_active) {
		sway_log(SWAY_DEBUG, "Performing configuration file %s",
			validating ? "validation" : "reload");
		config->reloading = true;
		config->active = true;

		// xwayland can only be enabled/disabled at launch
		sway_log(SWAY_DEBUG, "xwayland will remain %s",
				old_config->xwayland ? "enabled" : "disabled");
		config->xwayland = old_config->xwayland;

		if (!config->validating) {
			if (old_config->swaybg_client != NULL) {
				wl_client_destroy(old_config->swaybg_client);
			}

			if (old_config->swaynag_config_errors.client != NULL) {
				wl_client_destroy(old_config->swaynag_config_errors.client);
			}

			input_manager_reset_all_inputs();
		}
	}

	config->current_config_path = path;
	list_add(config->config_chain, real_path);

	config->reading = true;

	// Read security configs
	// TODO: Security
	bool success = true;
	/*
	DIR *dir = opendir(SYSCONFDIR "/sway/security.d");
	if (!dir) {
		sway_log(SWAY_ERROR,
			"%s does not exist, sway will have no security configuration"
			" and will probably be broken", SYSCONFDIR "/sway/security.d");
	} else {
		list_t *secconfigs = create_list();
		char *base = SYSCONFDIR "/sway/security.d/";
		struct dirent *ent = readdir(dir);
		struct stat s;
		while (ent != NULL) {
			char *_path = malloc(strlen(ent->d_name) + strlen(base) + 1);
			strcpy(_path, base);
			strcat(_path, ent->d_name);
			lstat(_path, &s);
			if (S_ISREG(s.st_mode) && ent->d_name[0] != '.') {
				list_add(secconfigs, _path);
			}
			else {
				free(_path);
			}
			ent = readdir(dir);
		}
		closedir(dir);

		list_qsort(secconfigs, qstrcmp);
		for (int i = 0; i < secconfigs->length; ++i) {
			char *_path = secconfigs->items[i];
			if (stat(_path, &s) || s.st_uid != 0 || s.st_gid != 0 ||
					(((s.st_mode & 0777) != 0644) &&
					(s.st_mode & 0777) != 0444)) {
				sway_log(SWAY_ERROR,
					"Refusing to load %s - it must be owned by root "
					"and mode 644 or 444", _path);
				success = false;
			} else {
				success = success && load_config(_path, config);
			}
		}

		list_free_items_and_destroy(secconfigs);
	}
	*/

	success = success && load_config(path, config,
			&config->swaynag_config_errors);

	if (validating) {
		free_config(config);
		config = old_config;
		return success;
	}

	if (is_active && !validating) {
		input_manager_verify_fallback_seat();

		for (int i = 0; i < config->input_configs->length; i++) {
			input_manager_apply_input_config(config->input_configs->items[i]);
		}

		for (int i = 0; i < config->seat_configs->length; i++) {
			input_manager_apply_seat_config(config->seat_configs->items[i]);
		}
		sway_switch_retrigger_bindings_for_all();

		reset_outputs();
		spawn_swaybg();

		config->reloading = false;
		if (config->swaynag_config_errors.client != NULL) {
			swaynag_show(&config->swaynag_config_errors);
		}
	}

	if (old_config) {
		destroy_removed_seats(old_config, config);
		free_config(old_config);
	}
	config->reading = false;
	return success;
}

static bool load_include_config(const char *path, const char *parent_dir,
		struct sway_config *config, struct swaynag_instance *swaynag) {
	// save parent config
	const char *parent_config = config->current_config_path;

	char *full_path;
	int len = strlen(path);
	if (len >= 1 && path[0] != '/') {
		len = len + strlen(parent_dir) + 2;
		full_path = malloc(len * sizeof(char));
		if (!full_path) {
			sway_log(SWAY_ERROR,
				"Unable to allocate full path to included config");
			return false;
		}
		snprintf(full_path, len, "%s/%s", parent_dir, path);
	} else {
		full_path = strdup(path);
	}

	char *real_path = realpath(full_path, NULL);
	free(full_path);

	if (real_path == NULL) {
		sway_log(SWAY_DEBUG, "%s not found.", path);
		return false;
	}

	// check if config has already been included
	int j;
	for (j = 0; j < config->config_chain->length; ++j) {
		char *old_path = config->config_chain->items[j];
		if (strcmp(real_path, old_path) == 0) {
			sway_log(SWAY_DEBUG,
				"%s already included once, won't be included again.",
				real_path);
			free(real_path);
			return false;
		}
	}

	config->current_config_path = real_path;
	list_add(config->config_chain, real_path);
	int index = config->config_chain->length - 1;

	if (!load_config(real_path, config, swaynag)) {
		free(real_path);
		config->current_config_path = parent_config;
		list_del(config->config_chain, index);
		return false;
	}

	// restore current_config_path
	config->current_config_path = parent_config;
	return true;
}

void load_include_configs(const char *path, struct sway_config *config,
		struct swaynag_instance *swaynag) {
	char *wd = getcwd(NULL, 0);
	char *parent_path = strdup(config->current_config_path);
	const char *parent_dir = dirname(parent_path);

	if (chdir(parent_dir) < 0) {
		sway_log(SWAY_ERROR, "failed to change working directory");
		goto cleanup;
	}

	wordexp_t p;
	if (wordexp(path, &p, 0) == 0) {
		char **w = p.we_wordv;
		size_t i;
		for (i = 0; i < p.we_wordc; ++i) {
			load_include_config(w[i], parent_dir, config, swaynag);
		}
		wordfree(&p);
	}

	// Attempt to restore working directory before returning.
	if (chdir(wd) < 0) {
		sway_log(SWAY_ERROR, "failed to change working directory");
	}
cleanup:
	free(parent_path);
	free(wd);
}

void run_deferred_commands(void) {
	if (!config->cmd_queue->length) {
		return;
	}
	sway_log(SWAY_DEBUG, "Running deferred commands");
	while (config->cmd_queue->length) {
		char *line = config->cmd_queue->items[0];
		list_t *res_list = execute_command(line, NULL, NULL);
		for (int i = 0; i < res_list->length; ++i) {
			struct cmd_results *res = res_list->items[i];
			if (res->status != CMD_SUCCESS) {
				sway_log(SWAY_ERROR, "Error on line '%s': %s",
						line, res->error);
			}
			free_cmd_results(res);
		}
		list_del(config->cmd_queue, 0);
		list_free(res_list);
		free(line);
	}
}

void run_deferred_bindings(void) {
	struct sway_seat *seat;
	wl_list_for_each(seat, &(server.input->seats), link) {
		if (!seat->deferred_bindings->length) {
			continue;
		}
		sway_log(SWAY_DEBUG, "Running deferred bindings for seat %s",
				seat->wlr_seat->name);
		while (seat->deferred_bindings->length) {
			struct sway_binding *binding = seat->deferred_bindings->items[0];
			seat_execute_command(seat, binding);
			list_del(seat->deferred_bindings, 0);
			free_sway_binding(binding);
		}
	}
}

// get line, with backslash continuation
static ssize_t getline_with_cont(char **lineptr, size_t *line_size, FILE *file,
		int *nlines) {
	char *next_line = NULL;
	size_t next_line_size = 0;
	ssize_t nread = getline(lineptr, line_size, file);
	*nlines = nread == -1 ? 0 : 1;
	while (nread >= 2 && strcmp(&(*lineptr)[nread - 2], "\\\n") == 0 && (*lineptr)[0] != '#') {
		ssize_t next_nread = getline(&next_line, &next_line_size, file);
		if (next_nread == -1) {
			break;
		}
		(*nlines)++;

		nread += next_nread - 2;
		if ((ssize_t) *line_size < nread + 1) {
			*line_size = nread + 1;
			char *old_ptr = *lineptr;
			*lineptr = realloc(*lineptr, *line_size);
			if (!*lineptr) {
				free(old_ptr);
				nread = -1;
				break;
			}
		}
		strcpy(&(*lineptr)[nread - next_nread], next_line);
	}
	free(next_line);
	return nread;
}

static int detect_brace(FILE *file) {
	int ret = 0;
	int lines = 0;
	long pos = ftell(file);
	char *line = NULL;
	size_t line_size = 0;
	while ((getline(&line, &line_size, file)) != -1) {
		lines++;
		strip_whitespace(line);
		if (*line) {
			if (strcmp(line, "{") == 0) {
				ret = lines;
			}
			break;
		}
	}
	free(line);
	if (ret == 0) {
		fseek(file, pos, SEEK_SET);
	}
	return ret;
}

static char *expand_line(const char *block, const char *line, bool add_brace) {
	int size = (block ? strlen(block) + 1 : 0) + strlen(line)
		+ (add_brace ? 2 : 0) + 1;
	char *expanded = calloc(1, size);
	if (!expanded) {
		sway_log(SWAY_ERROR, "Cannot allocate expanded line buffer");
		return NULL;
	}
	snprintf(expanded, size, "%s%s%s%s", block ? block : "",
			block ? " " : "", line, add_brace ? " {" : "");
	return expanded;
}

bool read_config(FILE *file, struct sway_config *config,
		struct swaynag_instance *swaynag) {
	bool reading_main_config = false;
	char *this_config = NULL;
	size_t config_size = 0;
	if (config->current_config == NULL) {
		reading_main_config = true;

		int ret_seek = fseek(file, 0, SEEK_END);
		long ret_tell = ftell(file);
		if (ret_seek == -1 || ret_tell == -1) {
			sway_log(SWAY_ERROR, "Unable to get size of config file");
			return false;
		}
		config_size = ret_tell;
		rewind(file);

		config->current_config = this_config = calloc(1, config_size + 1);
		if (this_config == NULL) {
			sway_log(SWAY_ERROR, "Unable to allocate buffer for config contents");
			return false;
		}
	}

	bool success = true;
	int line_number = 0;
	char *line = NULL;
	size_t line_size = 0;
	ssize_t nread;
	list_t *stack = create_list();
	size_t read = 0;
	int nlines = 0;
	while ((nread = getline_with_cont(&line, &line_size, file, &nlines)) != -1) {
		if (reading_main_config) {
			if (read + nread > config_size) {
				sway_log(SWAY_ERROR, "Config file changed during reading");
				success = false;
				break;
			}

			strcpy(&this_config[read], line);
			read += nread;
		}

		if (line[nread - 1] == '\n') {
			line[nread - 1] = '\0';
		}

		line_number += nlines;
		sway_log(SWAY_DEBUG, "Read line %d: %s", line_number, line);

		strip_whitespace(line);
		if (!*line || line[0] == '#') {
			continue;
		}
		int brace_detected = 0;
		if (line[strlen(line) - 1] != '{' && line[strlen(line) - 1] != '}') {
			brace_detected = detect_brace(file);
			if (brace_detected > 0) {
				line_number += brace_detected;
				sway_log(SWAY_DEBUG, "Detected open brace on line %d", line_number);
			}
		}
		char *block = stack->length ? stack->items[0] : NULL;
		char *expanded = expand_line(block, line, brace_detected > 0);
		if (!expanded) {
			success = false;
			break;
		}
		config->current_config_line_number = line_number;
		config->current_config_line = line;
		struct cmd_results *res;
		char *new_block = NULL;
		if (block && strcmp(block, "<commands>") == 0) {
			// Special case
			res = config_commands_command(expanded);
		} else {
			res = config_command(expanded, &new_block);
		}
		switch(res->status) {
		case CMD_FAILURE:
		case CMD_INVALID:
			sway_log(SWAY_ERROR, "Error on line %i '%s': %s (%s)", line_number,
				line, res->error, config->current_config_path);
			if (!config->validating) {
				swaynag_log(config->swaynag_command, swaynag,
					"Error on line %i (%s) '%s': %s", line_number,
					config->current_config_path, line, res->error);
			}
			success = false;
			break;

		case CMD_DEFER:
			sway_log(SWAY_DEBUG, "Deferring command `%s'", line);
			list_add(config->cmd_queue, strdup(expanded));
			break;

		case CMD_BLOCK_COMMANDS:
			sway_log(SWAY_DEBUG, "Entering commands block");
			list_insert(stack, 0, "<commands>");
			break;

		case CMD_BLOCK:
			sway_log(SWAY_DEBUG, "Entering block '%s'", new_block);
			list_insert(stack, 0, strdup(new_block));
			if (strcmp(new_block, "bar") == 0) {
				config->current_bar = NULL;
			}
			break;

		case CMD_BLOCK_END:
			if (!block) {
				sway_log(SWAY_DEBUG, "Unmatched '}' on line %i", line_number);
				success = false;
				break;
			}
			if (strcmp(block, "bar") == 0) {
				config->current_bar = NULL;
			}

			sway_log(SWAY_DEBUG, "Exiting block '%s'", block);
			list_del(stack, 0);
			free(block);
			memset(&config->handler_context, 0,
					sizeof(config->handler_context));
		default:;
		}
		free(new_block);
		free(expanded);
		free_cmd_results(res);
	}
	free(line);
	list_free_items_and_destroy(stack);
	config->current_config_line_number = 0;
	config->current_config_line = NULL;

	return success;
}

void config_add_swaynag_warning(char *fmt, ...) {
	if (config->reading && !config->validating) {
		va_list args;
		va_start(args, fmt);
		size_t length = vsnprintf(NULL, 0, fmt, args) + 1;
		va_end(args);

		char *temp = malloc(length + 1);
		if (!temp) {
			sway_log(SWAY_ERROR, "Failed to allocate buffer for warning.");
			return;
		}

		va_start(args, fmt);
		vsnprintf(temp, length, fmt, args);
		va_end(args);

		swaynag_log(config->swaynag_command, &config->swaynag_config_errors,
			"Warning on line %i (%s) '%s': %s",
			config->current_config_line_number, config->current_config_path,
			config->current_config_line, temp);
	}
}

char *do_var_replacement(char *str) {
	int i;
	char *find = str;
	while ((find = strchr(find, '$'))) {
		// Skip if escaped.
		if (find > str && find[-1] == '\\') {
			if (find == str + 1 || !(find > str + 1 && find[-2] == '\\')) {
				++find;
				continue;
			}
		}
		// Unescape double $ and move on
		if (find[1] == '$') {
			size_t length = strlen(find + 1);
			memmove(find, find + 1, length);
			find[length] = '\0';
			++find;
			continue;
		}
		// Find matching variable
		for (i = 0; i < config->symbols->length; ++i) {
			struct sway_variable *var = config->symbols->items[i];
			int vnlen = strlen(var->name);
			if (strncmp(find, var->name, vnlen) == 0) {
				int vvlen = strlen(var->value);
				char *newstr = malloc(strlen(str) - vnlen + vvlen + 1);
				if (!newstr) {
					sway_log(SWAY_ERROR,
						"Unable to allocate replacement "
						"during variable expansion");
					break;
				}
				char *newptr = newstr;
				int offset = find - str;
				strncpy(newptr, str, offset);
				newptr += offset;
				strncpy(newptr, var->value, vvlen);
				newptr += vvlen;
				strcpy(newptr, find + vnlen);
				free(str);
				str = newstr;
				find = str + offset + vvlen;
				break;
			}
		}
		if (i == config->symbols->length) {
			++find;
		}
	}
	return str;
}

// the naming is intentional (albeit long): a workspace_output_cmp function
// would compare two structs in full, while this method only compares the
// workspace.
int workspace_output_cmp_workspace(const void *a, const void *b) {
	const struct workspace_config *wsa = a, *wsb = b;
	return lenient_strcmp(wsa->workspace, wsb->workspace);
}

static void find_font_height_iterator(struct sway_container *con, void *data) {
	size_t amount_below_baseline = con->title_height - con->title_baseline;
	size_t extended_height = config->font_baseline + amount_below_baseline;
	if (extended_height > config->font_height) {
		config->font_height = extended_height;
	}
}

static void find_baseline_iterator(struct sway_container *con, void *data) {
	bool *recalculate = data;
	if (*recalculate) {
		container_calculate_title_height(con);
	}
	if (con->title_baseline > config->font_baseline) {
		config->font_baseline = con->title_baseline;
	}
}

void config_update_font_height(bool recalculate) {
	size_t prev_max_height = config->font_height;
	config->font_height = 0;
	config->font_baseline = 0;

	root_for_each_container(find_baseline_iterator, &recalculate);
	root_for_each_container(find_font_height_iterator, NULL);

	if (config->font_height != prev_max_height) {
		arrange_root();
	}
}

static void translate_binding_list(list_t *bindings, list_t *bindsyms,
		list_t *bindcodes) {
	for (int i = 0; i < bindings->length; ++i) {
		struct sway_binding *binding = bindings->items[i];
		translate_binding(binding);

		switch (binding->type) {
		case BINDING_KEYSYM:
			binding_add_translated(binding, bindsyms);
			break;
		case BINDING_KEYCODE:
			binding_add_translated(binding, bindcodes);
			break;
		default:
			sway_assert(false, "unexpected translated binding type: %d",
					binding->type);
			break;
		}

	}
}

void translate_keysyms(struct input_config *input_config) {
	keysym_translation_state_destroy(config->keysym_translation_state);

	struct xkb_rule_names rules = {0};
	input_config_fill_rule_names(input_config, &rules);
	config->keysym_translation_state =
		keysym_translation_state_create(rules);

	for (int i = 0; i < config->modes->length; ++i) {
		struct sway_mode *mode = config->modes->items[i];

		list_t *bindsyms = create_list();
		list_t *bindcodes = create_list();

		translate_binding_list(mode->keysym_bindings, bindsyms, bindcodes);
		translate_binding_list(mode->keycode_bindings, bindsyms, bindcodes);

		list_free(mode->keysym_bindings);
		list_free(mode->keycode_bindings);

		mode->keysym_bindings = bindsyms;
		mode->keycode_bindings = bindcodes;
	}

	sway_log(SWAY_DEBUG, "Translated keysyms using config for device '%s'",
			input_config->identifier);
}