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"""Functions that help you work with QMK keymaps.
"""
import os
from pathlib import Path
import qmk.path
import qmk.makefile
# The `keymap.c` template to use when a keyboard doesn't have its own
DEFAULT_KEYMAP_C = """#include QMK_KEYBOARD_H
/* THIS FILE WAS GENERATED!
*
* This file was generated by qmk-compile-json. You may or may not want to
* edit it directly.
*/
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
__KEYMAP_GOES_HERE__
};
"""
def template(keyboard):
"""Returns the `keymap.c` template for a keyboard.
If a template exists in `keyboards/<keyboard>/templates/keymap.c` that
text will be used instead of `DEFAULT_KEYMAP_C`.
Args:
keyboard
The keyboard to return a template for.
"""
template_name = 'keyboards/%s/templates/keymap.c' % keyboard
if os.path.exists(template_name):
with open(template_name, 'r') as fd:
return fd.read()
return DEFAULT_KEYMAP_C
def generate(keyboard, layout, layers):
"""Returns a keymap.c for the specified keyboard, layout, and layers.
Args:
keyboard
The name of the keyboard
layout
The LAYOUT macro this keymap uses.
layers
An array of arrays describing the keymap. Each item in the inner array should be a string that is a valid QMK keycode.
"""
layer_txt = []
for layer_num, layer in enumerate(layers):
if layer_num != 0:
layer_txt[-1] = layer_txt[-1] + ','
layer_keys = ', '.join(layer)
layer_txt.append('\t[%s] = %s(%s)' % (layer_num, layout, layer_keys))
keymap = '\n'.join(layer_txt)
keymap_c = template(keyboard)
return keymap_c.replace('__KEYMAP_GOES_HERE__', keymap)
def write(keyboard, keymap, layout, layers):
"""Generate the `keymap.c` and write it to disk.
Returns the filename written to.
Args:
keyboard
The name of the keyboard
keymap
The name of the keymap
layout
The LAYOUT macro this keymap uses.
layers
An array of arrays describing the keymap. Each item in the inner array should be a string that is a valid QMK keycode.
"""
keymap_c = generate(keyboard, layout, layers)
keymap_path = qmk.path.keymap(keyboard)
keymap_dir = os.path.join(keymap_path, keymap)
keymap_file = os.path.join(keymap_dir, 'keymap.c')
if not os.path.exists(keymap_dir):
os.makedirs(keymap_dir)
with open(keymap_file, 'w') as keymap_fd:
keymap_fd.write(keymap_c)
return keymap_file
def list_keymaps(keyboard_name):
""" List the available keymaps for a keyboard.
Args:
keyboard_name: the keyboards full name with vendor and revision if necessary, example: clueboard/66/rev3
Returns:
a set with the names of the available keymaps
"""
# parse all the rules.mk files for the keyboard
rules_mk = qmk.makefile.get_rules_mk(keyboard_name)
names = set()
if rules_mk:
# qmk_firmware/keyboards
keyboards_dir = Path.cwd() / "keyboards"
# path to the keyboard's directory
kb_path = keyboards_dir / keyboard_name
# walk up the directory tree until keyboards_dir
# and collect all directories' name with keymap.c file in it
while kb_path != keyboards_dir:
keymaps_dir = kb_path / "keymaps"
if keymaps_dir.exists():
names = names.union([keymap for keymap in os.listdir(str(keymaps_dir)) if (keymaps_dir / keymap / "keymap.c").is_file()])
kb_path = kb_path.parent
# if community layouts are supported, get them
if "LAYOUTS" in rules_mk:
for layout in rules_mk["LAYOUTS"].split():
cl_path = Path.cwd() / "layouts" / "community" / layout
if cl_path.exists():
names = names.union([keymap for keymap in os.listdir(str(cl_path)) if (cl_path / keymap / "keymap.c").is_file()])
return sorted(names)
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