Files
python-appimage/python_appimage/data/sitecustomize.py
2020-04-15 17:33:56 +02:00

107 lines
3.2 KiB
Python

'''Hooks for isloating the AppImage Python and making it relocatable
'''
import atexit
import os
import sys
def clean_path():
'''Remove system locations from the packages search path
'''
site_packages = '/usr/local/lib/python{:}.{:}/site-packages'.format(
*sys.version_info[:2])
binaries_path = '/usr/local/bin'
env_path = os.getenv("PYTHONPATH")
if env_path is None:
env_path = []
else:
env_path = [os.path.realpath(path) for path in env_path.split(':')]
if ((os.path.dirname(sys.executable) != binaries_path) and
(site_packages not in env_path)):
# Remove the builtin site-packages from the path
try:
sys.path.remove(site_packages)
except ValueError:
pass
clean_path()
_bin_at_start = os.listdir(sys.prefix + '/bin')
'''Initial content of the bin/ directory
'''
def patch_pip_install():
'''Change absolute shebangs to relative ones following a `pip` install
'''
if not 'pip' in sys.modules:
return
args = sys.argv[1:]
if 'install' in args:
for exe in os.listdir(sys.prefix + '/bin'):
path = os.path.join(sys.prefix, 'bin', exe)
if (not os.path.isfile(path)) or (not os.access(path, os.X_OK)) or \
exe.startswith('python') or os.path.islink(path) or \
exe.endswith('.pyc') or exe.endswith('.pyo'):
continue
try:
with open(path, 'r') as f:
header = f.read(2)
if header != '#!':
continue
content = f.read()
except:
continue
shebang, body = content.split(os.linesep, 1)
shebang = shebang.split()
python_x_y = os.path.basename(shebang.pop(0))
if not python_x_y.startswith('python'):
continue
relpath = os.path.relpath(
sys.prefix + '/../../usr/bin/' + python_x_y,
sys.prefix + '/bin')
shebang.append('"$@"')
cmd = (
'"exec"',
'"$(dirname $(readlink -f ${0}))/' + relpath + '"',
'"$0"',
' '.join(shebang)
)
try:
with open(path, 'w') as f:
f.write('#! /bin/sh\n')
f.write(' '.join(cmd) + '\n')
f.write(body)
except IOError:
continue
if exe in _bin_at_start:
continue
usr_dir = os.path.join(sys.prefix, '../../usr/bin')
usr_exe = os.path.join(usr_dir, exe)
if not os.path.exists(usr_exe):
relpath = os.path.relpath(path, usr_dir)
os.symlink(relpath, usr_exe)
elif 'uninstall' in args:
usr_dir = os.path.join(sys.prefix, '../../usr/bin')
for exe in os.listdir(usr_dir):
path = os.path.join(usr_dir, exe)
if (not os.path.islink(path)) or \
os.path.exists(os.path.realpath(path)):
continue
os.remove(path)
atexit.register(patch_pip_install)