qmk-dactyl-manuform-a/lib/python/qmk/os_helpers/__init__.py

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"""OS-agnostic helper functions
"""
from enum import Enum
import re
import shutil
from subprocess import DEVNULL
from milc import cli
from qmk import submodules
from qmk.constants import QMK_FIRMWARE
class CheckStatus(Enum):
OK = 1
WARNING = 2
ERROR = 3
ESSENTIAL_BINARIES = {
'dfu-programmer': {},
'avrdude': {},
'dfu-util': {},
'avr-gcc': {
'version_arg': '-dumpversion'
},
'arm-none-eabi-gcc': {
'version_arg': '-dumpversion'
},
'bin/qmk': {},
}
def parse_gcc_version(version):
m = re.match(r"(\d+)(?:\.(\d+))?(?:\.(\d+))?", version)
return {
'major': int(m.group(1)),
'minor': int(m.group(2)) if m.group(2) else 0,
'patch': int(m.group(3)) if m.group(3) else 0,
}
def check_arm_gcc_version():
"""Returns True if the arm-none-eabi-gcc version is not known to cause problems.
"""
if 'output' in ESSENTIAL_BINARIES['arm-none-eabi-gcc']:
version_number = ESSENTIAL_BINARIES['arm-none-eabi-gcc']['output'].strip()
cli.log.info('Found arm-none-eabi-gcc version %s', version_number)
return CheckStatus.OK # Right now all known arm versions are ok
def check_avr_gcc_version():
"""Returns True if the avr-gcc version is not known to cause problems.
"""
rc = CheckStatus.ERROR
if 'output' in ESSENTIAL_BINARIES['avr-gcc']:
version_number = ESSENTIAL_BINARIES['avr-gcc']['output'].strip()
cli.log.info('Found avr-gcc version %s', version_number)
rc = CheckStatus.OK
parsed_version = parse_gcc_version(version_number)
if parsed_version['major'] > 8:
cli.log.warning('{fg_yellow}We do not recommend avr-gcc newer than 8. Downgrading to 8.x is recommended.')
rc = CheckStatus.WARNING
return rc
def check_avrdude_version():
if 'output' in ESSENTIAL_BINARIES['avrdude']:
last_line = ESSENTIAL_BINARIES['avrdude']['output'].split('\n')[-2]
version_number = last_line.split()[2][:-1]
cli.log.info('Found avrdude version %s', version_number)
return CheckStatus.OK
def check_dfu_util_version():
if 'output' in ESSENTIAL_BINARIES['dfu-util']:
first_line = ESSENTIAL_BINARIES['dfu-util']['output'].split('\n')[0]
version_number = first_line.split()[1]
cli.log.info('Found dfu-util version %s', version_number)
return CheckStatus.OK
def check_dfu_programmer_version():
if 'output' in ESSENTIAL_BINARIES['dfu-programmer']:
first_line = ESSENTIAL_BINARIES['dfu-programmer']['output'].split('\n')[0]
version_number = first_line.split()[1]
cli.log.info('Found dfu-programmer version %s', version_number)
return CheckStatus.OK
def check_binaries():
"""Iterates through ESSENTIAL_BINARIES and tests them.
"""
ok = True
for binary in sorted(ESSENTIAL_BINARIES):
if not is_executable(binary):
ok = False
return ok
def check_binary_versions():
"""Check the versions of ESSENTIAL_BINARIES
"""
versions = []
for check in (check_arm_gcc_version, check_avr_gcc_version, check_avrdude_version, check_dfu_util_version, check_dfu_programmer_version):
versions.append(check())
return versions
def check_submodules():
"""Iterates through all submodules to make sure they're cloned and up to date.
"""
for submodule in submodules.status().values():
if submodule['status'] is None:
cli.log.error('Submodule %s has not yet been cloned!', submodule['name'])
return CheckStatus.ERROR
elif not submodule['status']:
cli.log.warning('Submodule %s is not up to date!', submodule['name'])
return CheckStatus.WARNING
return CheckStatus.OK
def is_executable(command):
"""Returns True if command exists and can be executed.
"""
# Make sure the command is in the path.
res = shutil.which(command)
if res is None:
cli.log.error("{fg_red}Can't find %s in your path.", command)
return False
# Make sure the command can be executed
version_arg = ESSENTIAL_BINARIES[command].get('version_arg', '--version')
check = cli.run([command, version_arg], combined_output=True, stdin=DEVNULL, timeout=5)
ESSENTIAL_BINARIES[command]['output'] = check.stdout
if check.returncode in [0, 1]: # Older versions of dfu-programmer exit 1
cli.log.debug('Found {fg_cyan}%s', command)
return True
cli.log.error("{fg_red}Can't run `%s %s`", command, version_arg)
return False
def check_git_repo():
"""Checks that the .git directory exists inside QMK_HOME.
This is a decent enough indicator that the qmk_firmware directory is a
proper Git repository, rather than a .zip download from GitHub.
"""
dot_git_dir = QMK_FIRMWARE / '.git'
return CheckStatus.OK if dot_git_dir.is_dir() else CheckStatus.WARNING