Sort includes in *.c files

Not enabling in .clang-format because it breaks headers files.

Used:
    IncludeCategories:
      - Regex:           '^<config'
        Priority:        0
      - Regex:           '^".*"'
        Priority:        1
      - Regex:           '^<(xcb|xkb|yajl|X11)'
        Priority:        3
      - Regex:           '.*'
        Priority:        2

18 files changed, 48 insertions, 51 deletions

diff --git a/libi3/dpi.c b/libi3/dpi.c
index d15e35be..dec38bc8 100644
--- a/libi3/dpi.c
+++ b/libi3/dpi.c
@@ -9,6 +9,7 @@
 
 #include <math.h>
 #include <stdlib.h>
+
 #include <xcb/xcb_xrm.h>
 
 static long dpi;
diff --git a/libi3/draw_util.c b/libi3/draw_util.c
index 092ac967..710c536a 100644
--- a/libi3/draw_util.c
+++ b/libi3/draw_util.c
@@ -8,12 +8,13 @@
  */
 #include "libi3.h"
 
-#include <stdlib.h>
+#include <cairo/cairo-xcb.h>
 #include <err.h>
+#include <stdlib.h>
 #include <string.h>
+
 #include <xcb/xcb.h>
 #include <xcb/xcb_aux.h>
-#include <cairo/cairo-xcb.h>
 
 /* The default visual_type to use if none is specified when creating the surface. Must be defined globally. */
 extern xcb_visualtype_t *visual_type;
diff --git a/libi3/fake_configure_notify.c b/libi3/fake_configure_notify.c
index 145f4512..e79a748b 100644
--- a/libi3/fake_configure_notify.c
+++ b/libi3/fake_configure_notify.c
@@ -7,8 +7,8 @@
  */
 #include "libi3.h"
 
-#include <stdlib.h>
 #include <stdbool.h>
+#include <stdlib.h>
 
 #include <xcb/xcb.h>
 #include <xcb/xproto.h>
diff --git a/libi3/font.c b/libi3/font.c
index 7b10edf0..e8945524 100644
--- a/libi3/font.c
+++ b/libi3/font.c
@@ -8,14 +8,13 @@
 #include "libi3.h"
 
 #include <assert.h>
+#include <cairo/cairo-xcb.h>
+#include <err.h>
+#include <pango/pangocairo.h>
+#include <stdbool.h>
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
-#include <stdbool.h>
-#include <err.h>
-
-#include <cairo/cairo-xcb.h>
-#include <pango/pangocairo.h>
 
 static const i3Font *savedFont = NULL;
 
diff --git a/libi3/format_placeholders.c b/libi3/format_placeholders.c
index 770e383d..99fa3055 100644
--- a/libi3/format_placeholders.c
+++ b/libi3/format_placeholders.c
@@ -7,8 +7,8 @@
  */
 #include "libi3.h"
 
-#include <stdlib.h>
 #include <stdint.h>
+#include <stdlib.h>
 #include <string.h>
 
 #ifndef CS_STARTS_WITH
diff --git a/libi3/g_utf8_make_valid.c b/libi3/g_utf8_make_valid.c
index b15873b3..71beafd3 100644
--- a/libi3/g_utf8_make_valid.c
+++ b/libi3/g_utf8_make_valid.c
@@ -19,8 +19,8 @@
 
 #include "libi3.h"
 
-#include <string.h>
 #include <glib.h>
+#include <string.h>
 
 /* Copied from:
  * https://gitlab.gnome.org/GNOME/glib/blob/f928dfdf57bf92c883b53b16d7a9d49add504f52/glib/gutf8.c#L1752-1815 */
diff --git a/libi3/get_colorpixel.c b/libi3/get_colorpixel.c
index 45931051..b60ffbac 100644
--- a/libi3/get_colorpixel.c
+++ b/libi3/get_colorpixel.c
@@ -6,12 +6,11 @@
  *
  */
 #include "libi3.h"
+#include "queue.h"
 
-#include <stdlib.h>
 #include <stdint.h>
+#include <stdlib.h>
 #include <string.h>
-
-#include "queue.h"
 struct Colorpixel {
     char hex[8];
     uint32_t pixel;
diff --git a/libi3/get_exe_path.c b/libi3/get_exe_path.c
index 430fb2e0..762b4965 100644
--- a/libi3/get_exe_path.c
+++ b/libi3/get_exe_path.c
@@ -7,12 +7,12 @@
  */
 #include "libi3.h"
 
-#include <unistd.h>
-#include <string.h>
-#include <stdio.h>
+#include <errno.h>
 #include <limits.h>
+#include <stdio.h>
 #include <stdlib.h>
-#include <errno.h>
+#include <string.h>
+#include <unistd.h>
 
 /*
  * This function returns the absolute path to the executable it is running in.
diff --git a/libi3/get_mod_mask.c b/libi3/get_mod_mask.c
index 98031d4c..92af456d 100644
--- a/libi3/get_mod_mask.c
+++ b/libi3/get_mod_mask.c
@@ -9,6 +9,7 @@
 
 #include <stdint.h>
 #include <stdlib.h>
+
 #include <xcb/xcb.h>
 #include <xcb/xcb_keysyms.h>
 
diff --git a/libi3/get_process_filename.c b/libi3/get_process_filename.c
index 7e2ecbd2..6e155ea8 100644
--- a/libi3/get_process_filename.c
+++ b/libi3/get_process_filename.c
@@ -8,16 +8,15 @@
 #include "libi3.h"
 
 #include <assert.h>
+#include <err.h>
+#include <pwd.h>
+#include <stdbool.h>
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
-#include <stdbool.h>
-#include <err.h>
 #include <sys/stat.h>
 #include <sys/types.h>
-#include <pwd.h>
 #include <unistd.h>
-#include <err.h>
 
 /*
  * Returns the name of a temporary file with the specified prefix.
diff --git a/libi3/ipc_connect.c b/libi3/ipc_connect.c
index f659a1a4..614ccdf3 100644
--- a/libi3/ipc_connect.c
+++ b/libi3/ipc_connect.c
@@ -7,14 +7,14 @@
  */
 #include "libi3.h"
 
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <string.h>
 #include <err.h>
+#include <fcntl.h>
 #include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/un.h>
 #include <unistd.h>
-#include <fcntl.h>
 
 /*
  * Connects to the i3 IPC socket and returns the file descriptor for the
diff --git a/libi3/ipc_recv_message.c b/libi3/ipc_recv_message.c
index 84da5aa3..6364b16d 100644
--- a/libi3/ipc_recv_message.c
+++ b/libi3/ipc_recv_message.c
@@ -7,15 +7,14 @@
  */
 #include "libi3.h"
 
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <unistd.h>
 #include <errno.h>
-#include <inttypes.h>
-
 #include <i3/ipc.h>
+#include <inttypes.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
 
 /*
  * Reads a message from the given socket file descriptor and stores its length
diff --git a/libi3/ipc_send_message.c b/libi3/ipc_send_message.c
index c2cc0127..106db348 100644
--- a/libi3/ipc_send_message.c
+++ b/libi3/ipc_send_message.c
@@ -7,14 +7,13 @@
  */
 #include "libi3.h"
 
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdint.h>
 #include <err.h>
 #include <errno.h>
-
 #include <i3/ipc.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
 
 /*
  * Formats a message (payload) of the given size and type and sends it to i3 via
diff --git a/libi3/is_debug_build.c b/libi3/is_debug_build.c
index 52187bda..afd06237 100644
--- a/libi3/is_debug_build.c
+++ b/libi3/is_debug_build.c
@@ -7,8 +7,8 @@
  */
 #include "libi3.h"
 
-#include <string.h>
 #include <stdbool.h>
+#include <string.h>
 
 /*
  * Returns true if this version of i3 is a debug build (anything which is not a
diff --git a/libi3/root_atom_contents.c b/libi3/root_atom_contents.c
index d6394d4b..134733a2 100644
--- a/libi3/root_atom_contents.c
+++ b/libi3/root_atom_contents.c
@@ -7,12 +7,12 @@
  */
 #include "libi3.h"
 
-#include <stdio.h>
-#include <string.h>
-#include <stdbool.h>
 #include <limits.h>
-#include <stdlib.h>
 #include <math.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 
 #include <xcb/xcb.h>
 #include <xcb/xcb_aux.h>
diff --git a/libi3/safewrappers.c b/libi3/safewrappers.c
index fdea636e..d4225ffe 100644
--- a/libi3/safewrappers.c
+++ b/libi3/safewrappers.c
@@ -7,13 +7,13 @@
  */
 #include "libi3.h"
 
-#include <string.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <unistd.h>
-#include <stdio.h>
 #include <err.h>
 #include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
 
 /*
  * The s* functions (safe) are wrappers around malloc, strdup, …, which exits if one of
diff --git a/libi3/string.c b/libi3/string.c
index 9efa3690..da18c550 100644
--- a/libi3/string.c
+++ b/libi3/string.c
@@ -11,11 +11,10 @@
  */
 #include "libi3.h"
 
+#include <glib.h>
 #include <stdlib.h>
 #include <string.h>
 
-#include <glib.h>
-
 struct _i3String {
     char *utf8;
     xcb_char2b_t *ucs2;
diff --git a/libi3/strndup.c b/libi3/strndup.c
index e215a76f..533958d2 100644
--- a/libi3/strndup.c
+++ b/libi3/strndup.c
@@ -7,8 +7,8 @@
  */
 #include "libi3.h"
 
-#include <sys/types.h>
 #include <string.h>
+#include <sys/types.h>
 
 #ifndef HAVE_strndup
 /*