GeezerVison is showing github.com — pre-commit.github.io/install-local.py at real_master · sumit4613/pre-commit.github.io

Expand file tree

install-local.py

Copy path

More file actions

Latest commit

History

126 lines (98 loc) · 3.15 KB

install-local.py

Copy path

File metadata and controls

126 lines (98 loc) · 3.15 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

#!/usr/bin/env python

from __future__ import absolute_import

from __future__ import print_function

from __future__ import unicode_literals

import contextlib

import distutils.spawn

import hashlib

import io

import os.path

import shutil

import subprocess

import sys

import tarfile

if str is bytes:

from urllib import urlopen # type: ignore

else:

from urllib.request import urlopen

if False:

from typing import Generator

TGZ = (

'https://files.pythonhosted.org/packages/a4/e3/'

'1f067de470e3a86875ed915438dc3bd781fb0346254f541190a09472b677/'

'virtualenv-16.7.10.tar.gz'

)

CHECKSUM = 'e88fdcb08b0ecb11da97868f463dd06275923f50d87f4b9c8b2fc0994eec40f4'

PKG_PATH = '/tmp/.virtualenv-pkg'

def clean(dirname):

# type: (str) -> None

if os.path.exists(dirname):

shutil.rmtree(dirname)

@contextlib.contextmanager

def clean_path():

# type: (...) -> Generator[None, None, None]

try:

yield

finally:

clean(PKG_PATH)

def virtualenv(path):

# type: (str) -> int

clean(PKG_PATH)

clean(path)

print('Downloading ' + TGZ)

tar_bytes = urlopen(TGZ).read()

checksum = hashlib.sha256(tar_bytes).hexdigest()

if checksum != CHECKSUM:

print(

'Checksums did not match. '

'Got {}, expected {}.'.format(checksum, CHECKSUM),

file=sys.stderr,

)

return 1

tar_stream = io.BytesIO(tar_bytes)

with contextlib.closing(tarfile.open(fileobj=tar_stream)) as tarfile_obj:

# Chop off the first path segment to avoid having the version in

# the path

for member in tarfile_obj.getmembers():

_, _, member.name = member.name.partition('/')

if member.name:

tarfile_obj.extract(member, PKG_PATH)

print('Done.')

with clean_path():

return subprocess.call((

sys.executable, os.path.join(PKG_PATH, 'virtualenv.py'), path,

))

def main():

# type: (...) -> int

venv_path = os.path.join(os.environ['HOME'], '.pre-commit-venv')

bin_dir = os.path.join(os.environ['HOME'], 'bin')

script_src = os.path.join(venv_path, 'bin', 'pre-commit')

script_dest = os.path.join(bin_dir, 'pre-commit')

if sys.argv[1:] == ['uninstall']:

clean(PKG_PATH)

clean(venv_path)

if os.path.lexists(script_dest):

os.remove(script_dest)

print('Cleaned ~/.pre-commit-venv ~/bin/pre-commit')

return 0

if virtualenv(venv_path):

return 1

subprocess.check_call((

os.path.join(venv_path, 'bin', 'pip'), 'install', 'pre-commit',

))

print('*' * 79)

print('Installing pre-commit to {}'.format(script_dest))

print('*' * 79)

if not os.path.exists(bin_dir):

os.mkdir(bin_dir)

# os.symlink is not idempotent

if os.path.exists(script_dest):

os.remove(script_dest)

os.symlink(script_src, script_dest)

if not distutils.spawn.find_executable('pre-commit'):

print('It looks like {} is not on your path'.format(bin_dir))

print('You may want to add it.')

print('Often this does the trick: source ~/.profile')

return 0

if __name__ == '__main__':

exit(main())