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"""Helpful decorators that subcommands can use.
"""
import functools
from time import monotonic
from milc import cli
from qmk.keyboard import find_keyboard_from_dir
from qmk.keymap import find_keymap_from_dir
def automagic_keyboard(func):
"""Sets `cli.config.<subcommand>.keyboard` based on environment.
This will rewrite cli.config.<subcommand>.keyboard if the user did not pass `--keyboard` and the directory they are currently in is a keyboard or keymap directory.
"""
@functools.wraps(func)
def wrapper(*args, **kwargs):
# Ensure that `--keyboard` was not passed and CWD is under `qmk_firmware/keyboards`
if cli.config_source[cli._subcommand.__name__]['keyboard'] != 'argument':
keyboard = find_keyboard_from_dir()
if keyboard:
cli.config[cli._subcommand.__name__]['keyboard'] = keyboard
cli.config_source[cli._subcommand.__name__]['keyboard'] = 'keyboard_directory'
return func(*args, **kwargs)
return wrapper
def automagic_keymap(func):
"""Sets `cli.config.<subcommand>.keymap` based on environment.
This will rewrite cli.config.<subcommand>.keymap if the user did not pass `--keymap` and the directory they are currently in is a keymap, layout, or user directory.
"""
@functools.wraps(func)
def wrapper(*args, **kwargs):
# Ensure that `--keymap` was not passed and that we're under `qmk_firmware`
if cli.config_source[cli._subcommand.__name__]['keymap'] != 'argument':
keymap_name, keymap_type = find_keymap_from_dir()
if keymap_name:
cli.config[cli._subcommand.__name__]['keymap'] = keymap_name
cli.config_source[cli._subcommand.__name__]['keymap'] = keymap_type
return func(*args, **kwargs)
return wrapper
def lru_cache(timeout=10, maxsize=128, typed=False):
"""Least Recently Used Cache- cache the result of a function.
Args:
timeout
How many seconds to cache results for.
maxsize
The maximum size of the cache in bytes
typed
When `True` argument types will be taken into consideration, for example `3` and `3.0` will be treated as different keys.
"""
def wrapper_cache(func):
func = functools.lru_cache(maxsize=maxsize, typed=typed)(func)
func.expiration = monotonic() + timeout
@functools.wraps(func)
def wrapped_func(*args, **kwargs):
if monotonic() >= func.expiration:
func.expiration = monotonic() + timeout
func.cache_clear()
return func(*args, **kwargs)
wrapped_func.cache_info = func.cache_info
wrapped_func.cache_clear = func.cache_clear
return wrapped_func
return wrapper_cache
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