src: include primary header first

This is a common practice in C projects, which simply enforces that
each header must compile cleanly without implicit dependencies on
other headers (see also the previous commit).

src/common/box.c

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
-#include <assert.h>
 #include "common/box.h"
+#include <assert.h>
 #include "common/macros.h"
 
 bool

src/common/buf.c

@@ -1,11 +1,11 @@
 // SPDX-License-Identifier: GPL-2.0-only
+#include "common/buf.h"
 #include <assert.h>
 #include <ctype.h>
 #include <stdarg.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <string.h>
-#include "common/buf.h"
 #include "common/macros.h"
 #include "common/mem.h"
 #include "common/string-helpers.h"

src/common/dir.c

@@ -4,13 +4,13 @@
  *
  * Copyright Johan Malm 2020
  */
+#include "common/dir.h"
 #include <assert.h>
 #include <glib.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/stat.h>
-#include "common/dir.h"
 #include "common/buf.h"
 #include "common/list.h"
 #include "common/mem.h"

src/common/direction.c

@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-only
+#include "common/direction.h"
 #include <assert.h>
 #include <wlr/types/wlr_output_layout.h>
-#include "common/direction.h"
 #include "view.h"
 
 enum wlr_direction

src/common/fd-util.c

@@ -1,11 +1,10 @@
 // SPDX-License-Identifier: GPL-2.0-only
 #define _POSIX_C_SOURCE 200809L
 
+#include "common/fd-util.h"
 #include <sys/resource.h>
 #include <wlr/util/log.h>
 
-#include "common/fd-util.h"
-
 static struct rlimit original_nofile_rlimit = {0};
 
 void

src/common/file-helpers.c

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
-#include <sys/stat.h>
 #include "common/file-helpers.h"
+#include <sys/stat.h>
 
 bool
 file_exists(const char *filename)

src/common/font.c

@@ -1,11 +1,11 @@
 // SPDX-License-Identifier: GPL-2.0-only
+#include "common/font.h"
 #include <cairo.h>
 #include <drm_fourcc.h>
 #include <pango/pangocairo.h>
 #include <wlr/render/wlr_renderer.h>
 #include <wlr/util/box.h>
 #include <wlr/util/log.h>
-#include "common/font.h"
 #include "common/graphic-helpers.h"
 #include "common/string-helpers.h"
 #include "labwc.h"

src/common/graphic-helpers.c

@@ -1,9 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0-only
 
+#include "common/graphic-helpers.h"
 #include <cairo.h>
 #include <glib.h> /* g_ascii_strcasecmp */
 #include <wlr/types/wlr_scene.h>
-#include "common/graphic-helpers.h"
 #include "common/macros.h"
 #include "xcolor-table.h"
 

src/common/lab-scene-rect.c

@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-only
+#include "common/lab-scene-rect.h"
 #include <assert.h>
 #include <wlr/types/wlr_scene.h>
-#include "common/lab-scene-rect.h"
 #include "common/mem.h"
 
 struct border_scene {

src/common/match.c

@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-only
 
-#include <fnmatch.h>
 #include "common/match.h"
+#include <fnmatch.h>
 
 bool
 match_glob(const char *pattern, const char *string)

src/common/mem.c

@@ -1,9 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0-only
 #define _POSIX_C_SOURCE 200809L
+#include "common/mem.h"
 #include <assert.h>
 #include <stdio.h>
 #include <string.h>
-#include "common/mem.h"
 
 static void
 die_if_null(void *ptr)

src/common/nodename.c

@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-only
+#include "common/nodename.h"
 #include <ctype.h>
 #include <string.h>
-#include "common/nodename.h"
 
 char *
 nodename(xmlNode *node, char *buf, int len)

src/common/parse-bool.c

@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-only
+#include "common/parse-bool.h"
 #include <strings.h>
 #include <wlr/util/log.h>
-#include "common/parse-bool.h"
 
 enum three_state
 parse_three_state(const char *str)

src/common/parse-double.c

@@ -1,10 +1,10 @@
 // SPDX-License-Identifier: GPL-2.0-only
+#include "common/parse-double.h"
 #include <locale.h>
 #include <stdlib.h>
 #include <string.h>
 #include <wlr/util/log.h>
 #include "common/mem.h"
-#include "common/parse-double.h"
 
 struct dec_separator {
 	int index;

src/common/scaled-font-buffer.c

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 #define _POSIX_C_SOURCE 200809L
+#include "common/scaled-font-buffer.h"
 #include <assert.h>
 #include <stdlib.h>
 #include <string.h>
@@ -10,7 +11,6 @@
 #include "common/graphic-helpers.h"
 #include "common/mem.h"
 #include "common/scaled-scene-buffer.h"
-#include "common/scaled-font-buffer.h"
 #include "common/string-helpers.h"
 
 static struct lab_data_buffer *

src/common/scaled-icon-buffer.c

@@ -1,12 +1,12 @@
 // SPDX-License-Identifier: GPL-2.0-only
 #define _POSIX_C_SOURCE 200809L
+#include "common/scaled-icon-buffer.h"
 #include <assert.h>
 #include <string.h>
 #include <wlr/util/log.h>
 #include "buffer.h"
 #include "common/macros.h"
 #include "common/mem.h"
-#include "common/scaled-icon-buffer.h"
 #include "common/scaled-scene-buffer.h"
 #include "common/string-helpers.h"
 #include "config.h"

src/common/scaled-img-buffer.c

@@ -1,11 +1,11 @@
 // SPDX-License-Identifier: GPL-2.0-only
 #define _POSIX_C_SOURCE 200809L
+#include "common/scaled-img-buffer.h"
 #include <assert.h>
 #include <wayland-server-core.h>
 #include <wlr/types/wlr_scene.h>
 #include "buffer.h"
 #include "common/mem.h"
-#include "common/scaled-img-buffer.h"
 #include "common/scaled-scene-buffer.h"
 #include "img/img.h"
 #include "node.h"

src/common/scaled-scene-buffer.c

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 #define _POSIX_C_SOURCE 200809L
+#include "common/scaled-scene-buffer.h"
 #include <assert.h>
 #include <stdlib.h>
 #include <wayland-server-core.h>
@@ -11,7 +12,6 @@
 #include "common/list.h"
 #include "common/macros.h"
 #include "common/mem.h"
-#include "common/scaled-scene-buffer.h"
 #include "node.h"
 
 /*

src/common/scene-helpers.c

@@ -1,12 +1,12 @@
 // SPDX-License-Identifier: GPL-2.0-only
 
+#include "common/scene-helpers.h"
 #include <assert.h>
 #include <wlr/types/wlr_output.h>
 #include <wlr/types/wlr_scene.h>
 #include <wlr/util/log.h>
 #include <wlr/util/region.h>
 #include <wlr/util/transform.h>
-#include "common/scene-helpers.h"
 #include "labwc.h"
 #include "magnifier.h"
 #include "output-state.h"

src/common/set.c

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
-#include <wlr/util/log.h>
 #include "common/set.h"
+#include <wlr/util/log.h>
 
 bool
 lab_set_contains(struct lab_set *set, uint32_t value)

src/common/spawn.c

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 #define _POSIX_C_SOURCE 200809L
+#include "common/spawn.h"
 #include <assert.h>
 #include <fcntl.h>
 #include <glib.h>
@@ -9,7 +10,6 @@
 #include <sys/wait.h>
 #include <unistd.h>
 #include <wlr/util/log.h>
-#include "common/spawn.h"
 #include "common/fd-util.h"
 
 static void

src/common/string-helpers.c

@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0-only
+#include "common/string-helpers.h"
 #include <assert.h>
 #include <ctype.h>
 #include <stdarg.h>
@@ -7,7 +8,6 @@
 #include <string.h>
 #include <strings.h>
 #include "common/mem.h"
-#include "common/string-helpers.h"
 
 enum str_flags {
 	STR_FLAG_NONE = 0,

src/common/surface-helpers.c

@@ -1,8 +1,8 @@
 // SPDX-License-Identifier: GPL-2.0-only
+#include "common/surface-helpers.h"
 #include <wlr/types/wlr_layer_shell_v1.h>
 #include <wlr/types/wlr_subcompositor.h>
 #include <wlr/util/log.h>
-#include "common/surface-helpers.h"
 
 struct wlr_layer_surface_v1 *
 subsurface_parent_layer(struct wlr_surface *wlr_surface)