PyBitmessage/fabfile/lib.py

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# pylint: disable=not-context-manager
"""
A library of functions and constants for tasks to make use of.
"""
import os
import sys
from fabric.api import run, hide
from fabric.context_managers import settings, shell_env
from fabvenv import virtualenv
FABRIC_ROOT = os.path.dirname(__file__)
PROJECT_ROOT = os.path.dirname(FABRIC_ROOT)
VENV_ROOT = os.path.expanduser(os.path.join('~', '.virtualenvs', 'pybitmessage-devops'))
PYTHONPATH = os.path.join(PROJECT_ROOT, 'src',)
def coerce_bool(value):
"""Coerce a value into a boolean"""
if isinstance(value, bool):
return value
elif any(
[
value in [0, '0'],
value.lower().startswith('n'),
]
):
return False
elif any(
[
value in [1, '1'],
value.lower().startswith('y'),
]
):
return True
else:
sys.exit("Bad boolean value {}".format(value))
def flatten(data):
"""Recursively flatten lists"""
result = []
for item in data:
if isinstance(item, list):
result.append(flatten(item))
else:
result.append(item)
return result
def pycodestyle(path_to_file):
"""Run pycodestyle on a file"""
with virtualenv(VENV_ROOT):
with hide('warnings', 'running', 'stdout', 'stderr'):
with settings(warn_only=True):
return run(
'pycodestyle --config={0} {1}'.format(
os.path.join(
PROJECT_ROOT,
'setup.cfg',
),
path_to_file,
),
)
def flake8(path_to_file):
"""Run flake8 on a file"""
with virtualenv(VENV_ROOT):
with hide('warnings', 'running', 'stdout'):
with settings(warn_only=True):
return run(
'flake8 --config={0} {1}'.format(
os.path.join(
PROJECT_ROOT,
'setup.cfg',
),
path_to_file,
),
)
def pylint(path_to_file):
"""Run pylint on a file"""
with virtualenv(VENV_ROOT):
with hide('warnings', 'running', 'stdout', 'stderr'):
with settings(warn_only=True):
with shell_env(PYTHONPATH=PYTHONPATH):
return run(
'pylint --rcfile={0} {1}'.format(
os.path.join(
PROJECT_ROOT,
'setup.cfg',
),
path_to_file,
),
)
def autopep8(path_to_file):
"""Run autopep8 on a file"""
with virtualenv(VENV_ROOT):
with hide('running'):
with settings(warn_only=True):
return run(
"autopep8 --experimental --aggressive --aggressive -i --max-line-length=119 {}".format(
path_to_file
),
)
def get_filtered_pycodestyle_output(path_to_file):
"""Clean up the raw results for pycodestyle"""
return [
i
for i in pycodestyle(path_to_file).split(os.linesep)
if i
]
def get_filtered_flake8_output(path_to_file):
"""Clean up the raw results for flake8"""
return [
i
for i in flake8(path_to_file).split(os.linesep)
if i
]
def get_filtered_pylint_output(path_to_file):
"""Clean up the raw results for pylint"""
return [
i
for i in pylint(path_to_file).split(os.linesep)
if all([
i,
not i.startswith(' '),
not i.startswith('\r'),
not i.startswith('-'),
not i.startswith('Y'),
not i.startswith('*'),
not i.startswith('Using config file'),
])
]