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"""Helper functions for commands.
"""
import os
import sys
import shutil
from pathlib import Path
from milc import cli
import jsonschema
from qmk.json_schema import json_load, validate
def find_make():
"""Returns the correct make command for this environment.
"""
make_cmd = os.environ.get('MAKE')
if not make_cmd:
make_cmd = 'gmake' if shutil.which('gmake') else 'make'
return make_cmd
def get_make_parallel_args(parallel=1):
"""Returns the arguments for running the specified number of parallel jobs.
"""
parallel_args = []
if int(parallel) <= 0:
# 0 or -1 means -j without argument (unlimited jobs)
parallel_args.append('--jobs')
elif int(parallel) > 1:
parallel_args.append('--jobs=' + str(parallel))
if int(parallel) != 1:
# If more than 1 job is used, synchronize parallel output by target
parallel_args.append('--output-sync=target')
return parallel_args
def parse_configurator_json(configurator_file):
"""Open and parse a configurator json export
"""
user_keymap = json_load(configurator_file)
# Validate against the jsonschema
try:
validate(user_keymap, 'qmk.keymap.v1')
except jsonschema.ValidationError as e:
cli.log.error(f'Invalid JSON keymap: {configurator_file} : {e.message}')
exit(1)
keyboard = user_keymap['keyboard']
aliases = json_load(Path('data/mappings/keyboard_aliases.hjson'))
while keyboard in aliases:
last_keyboard = keyboard
keyboard = aliases[keyboard].get('target', keyboard)
if keyboard == last_keyboard:
break
user_keymap['keyboard'] = keyboard
return user_keymap
def build_environment(args):
"""Common processing for cli.args.env
"""
envs = {}
for env in args:
if '=' in env:
key, value = env.split('=', 1)
envs[key] = value
else:
cli.log.warning('Invalid environment variable: %s', env)
return envs
def in_virtualenv():
"""Check if running inside a virtualenv.
Based on https://stackoverflow.com/a/1883251
"""
active_prefix = getattr(sys, "base_prefix", None) or getattr(sys, "real_prefix", None) or sys.prefix
return active_prefix != sys.prefix
def dump_lines(output_file, lines, quiet=True):
"""Handle dumping to stdout or file
Creates parent folders if required
"""
generated = '\n'.join(lines) + '\n'
if output_file and output_file.name != '-':
output_file.parent.mkdir(parents=True, exist_ok=True)
if output_file.exists():
output_file.replace(output_file.parent / (output_file.name + '.bak'))
output_file.write_text(generated, encoding='utf-8')
if not quiet:
cli.log.info(f'Wrote {output_file.name} to {output_file}.')
else:
print(generated)
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