mirror of
https://github.com/PiBrewing/craftbeerpi4.git
synced 2024-11-23 07:28:13 +01:00
93 lines
2.7 KiB
Python
93 lines
2.7 KiB
Python
|
"""Build Environment used for isolation during sdist building
|
||
|
|
"""
|
||
|
|
|
||
|
|
import os
|
||
|
|
from distutils.sysconfig import get_python_lib
|
||
|
|
from sysconfig import get_paths
|
||
|
|
|
||
|
|
from pip._internal.utils.temp_dir import TempDirectory
|
||
|
|
|
||
|
|
|
||
|
|
class BuildEnvironment(object):
|
||
|
|
"""Creates and manages an isolated environment to install build deps
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, no_clean):
|
||
|
|
self._temp_dir = TempDirectory(kind="build-env")
|
||
|
|
self._no_clean = no_clean
|
||
|
|
|
||
|
|
@property
|
||
|
|
def path(self):
|
||
|
|
return self._temp_dir.path
|
||
|
|
|
||
|
|
def __enter__(self):
|
||
|
|
self._temp_dir.create()
|
||
|
|
|
||
|
|
self.save_path = os.environ.get('PATH', None)
|
||
|
|
self.save_pythonpath = os.environ.get('PYTHONPATH', None)
|
||
|
|
self.save_nousersite = os.environ.get('PYTHONNOUSERSITE', None)
|
||
|
|
|
||
|
|
install_scheme = 'nt' if (os.name == 'nt') else 'posix_prefix'
|
||
|
|
install_dirs = get_paths(install_scheme, vars={
|
||
|
|
'base': self.path,
|
||
|
|
'platbase': self.path,
|
||
|
|
})
|
||
|
|
|
||
|
|
scripts = install_dirs['scripts']
|
||
|
|
if self.save_path:
|
||
|
|
os.environ['PATH'] = scripts + os.pathsep + self.save_path
|
||
|
|
else:
|
||
|
|
os.environ['PATH'] = scripts + os.pathsep + os.defpath
|
||
|
|
|
||
|
|
# Note: prefer distutils' sysconfig to get the
|
||
|
|
# library paths so PyPy is correctly supported.
|
||
|
|
purelib = get_python_lib(plat_specific=0, prefix=self.path)
|
||
|
|
platlib = get_python_lib(plat_specific=1, prefix=self.path)
|
||
|
|
if purelib == platlib:
|
||
|
|
lib_dirs = purelib
|
||
|
|
else:
|
||
|
|
lib_dirs = purelib + os.pathsep + platlib
|
||
|
|
if self.save_pythonpath:
|
||
|
|
os.environ['PYTHONPATH'] = lib_dirs + os.pathsep + \
|
||
|
|
self.save_pythonpath
|
||
|
|
else:
|
||
|
|
os.environ['PYTHONPATH'] = lib_dirs
|
||
|
|
|
||
|
|
os.environ['PYTHONNOUSERSITE'] = '1'
|
||
|
|
|
||
|
|
return self.path
|
||
|
|
|
||
|
|
def __exit__(self, exc_type, exc_val, exc_tb):
|
||
|
|
if not self._no_clean:
|
||
|
|
self._temp_dir.cleanup()
|
||
|
|
|
||
|
|
def restore_var(varname, old_value):
|
||
|
|
if old_value is None:
|
||
|
|
os.environ.pop(varname, None)
|
||
|
|
else:
|
||
|
|
os.environ[varname] = old_value
|
||
|
|
|
||
|
|
restore_var('PATH', self.save_path)
|
||
|
|
restore_var('PYTHONPATH', self.save_pythonpath)
|
||
|
|
restore_var('PYTHONNOUSERSITE', self.save_nousersite)
|
||
|
|
|
||
|
|
def cleanup(self):
|
||
|
|
self._temp_dir.cleanup()
|
||
|
|
|
||
|
|
|
||
|
|
class NoOpBuildEnvironment(BuildEnvironment):
|
||
|
|
"""A no-op drop-in replacement for BuildEnvironment
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, no_clean):
|
||
|
|
pass
|
||
|
|
|
||
|
|
def __enter__(self):
|
||
|
|
pass
|
||
|
|
|
||
|
|
def __exit__(self, exc_type, exc_val, exc_tb):
|
||
|
|
pass
|
||
|
|
|
||
|
|
def cleanup(self):
|
||
|
|
pass
|