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qmk_firmware/lib/python/qmk/search.py

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Python

"""Functions for searching through QMK keyboards and keymaps.
"""
import contextlib
import fnmatch
import logging
import multiprocessing
import re
from dotty_dict import dotty
from milc import cli
from qmk.info import keymap_json
import qmk.keyboard
import qmk.keymap
def _set_log_level(level):
cli.acquire_lock()
old = cli.log_level
cli.log_level = level
cli.log.setLevel(level)
logging.root.setLevel(level)
cli.release_lock()
return old
@contextlib.contextmanager
def ignore_logging():
old = _set_log_level(logging.CRITICAL)
yield
_set_log_level(old)
def _all_keymaps(keyboard):
with ignore_logging():
return (keyboard, qmk.keymap.list_keymaps(keyboard))
def _keymap_exists(keyboard, keymap):
with ignore_logging():
return keyboard if qmk.keymap.locate_keymap(keyboard, keymap) is not None else None
def _load_keymap_info(keyboard, keymap):
with ignore_logging():
return (keyboard, keymap, keymap_json(keyboard, keymap))
def search_keymap_targets(keymap='default', filters=[]):
targets = []
with multiprocessing.Pool() as pool:
cli.log.info(f'Retrieving list of keyboards with keymap "{keymap}"...')
target_list = []
if keymap == 'all':
kb_to_kms = pool.map(_all_keymaps, qmk.keyboard.list_keyboards())
for targets in kb_to_kms:
keyboard = targets[0]
keymaps = targets[1]
target_list.extend([(keyboard, keymap) for keymap in keymaps])
else:
target_list = [(kb, keymap) for kb in filter(lambda kb: kb is not None, pool.starmap(_keymap_exists, [(kb, keymap) for kb in qmk.keyboard.list_keyboards()]))]
if len(filters) == 0:
targets = target_list
else:
cli.log.info('Parsing data for all matching keyboard/keymap combinations...')
valid_keymaps = [(e[0], e[1], dotty(e[2])) for e in pool.starmap(_load_keymap_info, target_list)]
equals_re = re.compile(r'^(?P<key>[a-zA-Z0-9_\.]+)\s*=\s*(?P<value>[^#]+)$')
exists_re = re.compile(r'^exists\((?P<key>[a-zA-Z0-9_\.]+)\)$')
for filter_txt in filters:
f = equals_re.match(filter_txt)
if f is not None:
key = f.group('key')
value = f.group('value')
cli.log.info(f'Filtering on condition ("{key}" == "{value}")...')
def _make_filter(k, v):
expr = fnmatch.translate(v)
rule = re.compile(f'^{expr}$', re.IGNORECASE)
def f(e):
lhs = e[2].get(k)
lhs = str(False if lhs is None else lhs)
return rule.search(lhs) is not None
return f
valid_keymaps = filter(_make_filter(key, value), valid_keymaps)
f = exists_re.match(filter_txt)
if f is not None:
key = f.group('key')
cli.log.info(f'Filtering on condition (exists: "{key}")...')
valid_keymaps = filter(lambda e: e[2].get(key) is not None, valid_keymaps)
targets = [(e[0], e[1]) for e in valid_keymaps]
return targets