qmk_firmware/lib/python/qmk/search.py
2024-02-17 12:28:40 +00:00

266 lines
9.3 KiB
Python

"""Functions for searching through QMK keyboards and keymaps.
"""
import contextlib
import functools
import fnmatch
import logging
import re
from typing import Callable, List, Optional, Tuple
from dotty_dict import dotty, Dotty
from milc import cli
from qmk.util import parallel_map
from qmk.info import keymap_json
from qmk.keyboard import list_keyboards, keyboard_folder
from qmk.keymap import list_keymaps, locate_keymap
from qmk.build_targets import KeyboardKeymapBuildTarget, BuildTarget
TargetInfo = Tuple[str, str, dict]
# by using a class for filters, we dont need to worry about capturing values
# see details <https://github.com/qmk/qmk_firmware/pull/21090>
class FilterFunction:
"""Base class for filters.
It provides:
- __init__: capture key and value
Each subclass should provide:
- func_name: how it will be specified on CLI
>>> qmk find -f <func_name>...
- apply: function that actually applies the filter
ie: return whether the input kb/km satisfies the condition
"""
key: str
value: Optional[str]
func_name: str
apply: Callable[[TargetInfo], bool]
def __init__(self, key, value):
self.key = key
self.value = value
class Exists(FilterFunction):
func_name = "exists"
def apply(self, target_info: TargetInfo) -> bool:
_kb, _km, info = target_info
return self.key in info
class Absent(FilterFunction):
func_name = "absent"
def apply(self, target_info: TargetInfo) -> bool:
_kb, _km, info = target_info
return self.key not in info
class Length(FilterFunction):
func_name = "length"
def apply(self, target_info: TargetInfo) -> bool:
_kb, _km, info = target_info
return (self.key in info and len(info[self.key]) == int(self.value))
class Contains(FilterFunction):
func_name = "contains"
def apply(self, target_info: TargetInfo) -> bool:
_kb, _km, info = target_info
return (self.key in info and self.value in info[self.key])
def _get_filter_class(func_name: str, key: str, value: str) -> Optional[FilterFunction]:
"""Initialize a filter subclass based on regex findings and return it.
None if no there's no filter with the name queried.
"""
for subclass in FilterFunction.__subclasses__():
if func_name == subclass.func_name:
return subclass(key, value)
return None
def filter_help() -> str:
names = [f"'{f.func_name}'" for f in FilterFunction.__subclasses__()]
return ", ".join(names[:-1]) + f" and {names[-1]}"
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):
"""Returns a list of tuples of (keyboard, keymap) for all keymaps for the given keyboard.
"""
with ignore_logging():
keyboard = keyboard_folder(keyboard)
return [(keyboard, keymap) for keymap in list_keymaps(keyboard)]
def _keymap_exists(keyboard, keymap):
"""Returns the keyboard name if the keyboard+keymap combination exists, otherwise None.
"""
with ignore_logging():
return keyboard if locate_keymap(keyboard, keymap) is not None else None
def _load_keymap_info(target: Tuple[str, str]) -> TargetInfo:
"""Returns a tuple of (keyboard, keymap, info.json) for the given keyboard/keymap combination.
"""
kb, km = target
with ignore_logging():
return (kb, km, keymap_json(kb, km))
def expand_make_targets(targets: List[str]) -> List[Tuple[str, str]]:
"""Expand a list of make targets into a list of (keyboard, keymap) tuples.
Caters for 'all' in either keyboard or keymap, or both.
"""
split_targets = []
for target in targets:
split_target = target.split(':')
if len(split_target) != 2:
cli.log.error(f"Invalid build target: {target}")
return []
split_targets.append((split_target[0], split_target[1]))
return expand_keymap_targets(split_targets)
def _expand_keymap_target(keyboard: str, keymap: str, all_keyboards: List[str] = None) -> List[Tuple[str, str]]:
"""Expand a keyboard input and keymap input into a list of (keyboard, keymap) tuples.
Caters for 'all' in either keyboard or keymap, or both.
"""
if all_keyboards is None:
all_keyboards = list_keyboards()
if keyboard == 'all':
if keymap == 'all':
cli.log.info('Retrieving list of all keyboards and keymaps...')
targets = []
for kb in parallel_map(_all_keymaps, all_keyboards):
targets.extend(kb)
return targets
else:
cli.log.info(f'Retrieving list of keyboards with keymap "{keymap}"...')
keyboard_filter = functools.partial(_keymap_exists, keymap=keymap)
return [(kb, keymap) for kb in filter(lambda e: e is not None, parallel_map(keyboard_filter, all_keyboards))]
else:
if keymap == 'all':
cli.log.info(f'Retrieving list of keymaps for keyboard "{keyboard}"...')
return _all_keymaps(keyboard)
else:
return [(keyboard, keymap)]
def expand_keymap_targets(targets: List[Tuple[str, str]]) -> List[Tuple[str, str]]:
"""Expand a list of (keyboard, keymap) tuples inclusive of 'all', into a list of explicit (keyboard, keymap) tuples.
"""
overall_targets = []
all_keyboards = list_keyboards()
for target in targets:
overall_targets.extend(_expand_keymap_target(target[0], target[1], all_keyboards))
return list(sorted(set(overall_targets)))
def _construct_build_target_kb_km(e):
return KeyboardKeymapBuildTarget(keyboard=e[0], keymap=e[1])
def _construct_build_target_kb_km_json(e):
return KeyboardKeymapBuildTarget(keyboard=e[0], keymap=e[1], json=e[2])
def _filter_keymap_targets(target_list: List[Tuple[str, str]], filters: List[str] = []) -> List[BuildTarget]:
"""Filter a list of (keyboard, keymap) tuples based on the supplied filters.
Optionally includes the values of the queried info.json keys.
"""
if len(filters) == 0:
cli.log.info('Preparing target list...')
targets = list(set(parallel_map(_construct_build_target_kb_km, 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 parallel_map(_load_keymap_info, target_list)]
function_re = re.compile(r'^(?P<function>[a-zA-Z]+)\((?P<key>[a-zA-Z0-9_\.]+)(,\s*(?P<value>[^#]+))?\)$')
equals_re = re.compile(r'^(?P<key>[a-zA-Z0-9_\.]+)\s*=\s*(?P<value>[^#]+)$')
for filter_expr in filters:
function_match = function_re.match(filter_expr)
equals_match = equals_re.match(filter_expr)
if function_match is not None:
func_name = function_match.group('function').lower()
key = function_match.group('key')
value = function_match.group('value')
filter_class = _get_filter_class(func_name, key, value)
if filter_class is None:
cli.log.warning(f'Unrecognized filter expression: {function_match.group(0)}')
continue
valid_keymaps = filter(filter_class.apply, valid_keymaps)
value_str = f", {{fg_cyan}}{value}{{fg_reset}})" if value is not None else ""
cli.log.info(f'Filtering on condition: {{fg_green}}{func_name}{{fg_reset}}({{fg_cyan}}{key}{{fg_reset}}{value_str}...')
elif equals_match is not None:
key = equals_match.group('key')
value = equals_match.group('value')
cli.log.info(f'Filtering on condition: {{fg_cyan}}{key}{{fg_reset}} == {{fg_cyan}}{value}{{fg_reset}}...')
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)
else:
cli.log.warning(f'Unrecognized filter expression: {filter_expr}')
continue
cli.log.info('Preparing target list...')
valid_keymaps = [(e[0], e[1], e[2].to_dict() if isinstance(e[2], Dotty) else e[2]) for e in valid_keymaps] # need to convert dotty_dict back to dict because it doesn't survive parallelisation
targets = list(set(parallel_map(_construct_build_target_kb_km_json, list(valid_keymaps))))
return targets
def search_keymap_targets(targets: List[Tuple[str, str]] = [('all', 'default')], filters: List[str] = []) -> List[BuildTarget]:
"""Search for build targets matching the supplied criteria.
"""
return _filter_keymap_targets(expand_keymap_targets(targets), filters)
def search_make_targets(targets: List[str], filters: List[str] = []) -> List[BuildTarget]:
"""Search for build targets matching the supplied criteria.
"""
return _filter_keymap_targets(expand_make_targets(targets), filters)