/usr/lib/python2.7/dist-packages/dh_virtualenv/deployment.py is in dh-virtualenv 1.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 | # -*- coding: utf-8 -*-
# Copyright (c) 2013 - 2014 Spotify AB
# This file is part of dh-virtualenv.
# dh-virtualenv is free software: you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation, either version 2 of the
# License, or (at your option) any later version.
# dh-virtualenv is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with dh-virtualenv. If not, see
# <http://www.gnu.org/licenses/>.
import os
import re
import shutil
import subprocess
import tempfile
ROOT_ENV_KEY = 'DH_VIRTUALENV_INSTALL_ROOT'
DEFAULT_INSTALL_DIR = '/opt/venvs/'
PYTHON_INTERPRETERS = ['python', 'pypy', 'ipy', 'jython']
_PYTHON_INTERPRETERS_REGEX = r'\(' + r'\|'.join(PYTHON_INTERPRETERS) + r'\)'
class Deployment(object):
def __init__(self,
package,
extra_urls=[],
preinstall=[],
pip_tool='pip',
upgrade_pip=False,
index_url=None,
setuptools=False,
python=None,
builtin_venv=False,
sourcedirectory=None,
verbose=False,
extra_pip_arg=[],
extra_virtualenv_arg=[],
use_system_packages=False,
skip_install=False,
install_suffix=None,
requirements_filename='requirements.txt'):
self.package = package
install_root = os.environ.get(ROOT_ENV_KEY, DEFAULT_INSTALL_DIR)
self.install_suffix = install_suffix
self.debian_root = os.path.join(
'debian', package, install_root.lstrip('/'))
if install_suffix is None:
self.virtualenv_install_dir = os.path.join(install_root, self.package)
self.package_dir = os.path.join(self.debian_root, package)
else:
self.virtualenv_install_dir = os.path.join(install_root, install_suffix)
self.package_dir = os.path.join(self.debian_root, install_suffix)
self.bin_dir = os.path.join(self.package_dir, 'bin')
self.local_bin_dir = os.path.join(self.package_dir, 'local', 'bin')
self.preinstall = preinstall
self.upgrade_pip = upgrade_pip
self.extra_virtualenv_arg = extra_virtualenv_arg
self.log_file = tempfile.NamedTemporaryFile()
self.verbose = verbose
self.setuptools = setuptools
self.python = python
self.builtin_venv = builtin_venv
self.sourcedirectory = '.' if sourcedirectory is None else sourcedirectory
self.use_system_packages = use_system_packages
self.skip_install = skip_install
self.requirements_filename = requirements_filename
# We need to prefix the pip run with the location of python
# executable. Otherwise it would just blow up due to too long
# shebang-line.
python = self.venv_bin('python')
self.pip_preinstall_prefix = [python, self.venv_bin('pip')]
self.pip_prefix = [python, self.venv_bin(pip_tool)]
self.pip_args = ['install']
if self.verbose:
self.pip_args.append('-v')
if index_url:
self.pip_args.append('--index-url={0}'.format(index_url))
self.pip_args.extend([
'--extra-index-url={0}'.format(url) for url in extra_urls
])
self.pip_args.append('--log={0}'.format(os.path.abspath(self.log_file.name)))
# Add in any user supplied pip args
self.pip_args.extend(extra_pip_arg)
@classmethod
def from_options(cls, package, options):
verbose = options.verbose or os.environ.get('DH_VERBOSE') == '1'
return cls(package,
extra_urls=options.extra_index_url,
preinstall=options.preinstall,
pip_tool=options.pip_tool,
upgrade_pip=options.upgrade_pip,
index_url=options.index_url,
setuptools=options.setuptools,
python=options.python,
builtin_venv=options.builtin_venv,
sourcedirectory=options.sourcedirectory,
verbose=verbose,
extra_pip_arg=options.extra_pip_arg,
extra_virtualenv_arg=options.extra_virtualenv_arg,
use_system_packages=options.use_system_packages,
skip_install=options.skip_install,
install_suffix=options.install_suffix,
requirements_filename=options.requirements_filename)
def clean(self):
shutil.rmtree(self.debian_root)
def create_virtualenv(self):
if self.builtin_venv:
virtualenv = [self.python, '-m', 'venv']
else:
virtualenv = ['virtualenv']
if self.use_system_packages:
virtualenv.append('--system-site-packages')
else:
virtualenv.append('--no-site-packages')
if self.setuptools:
virtualenv.append('--setuptools')
if self.verbose:
virtualenv.append('--verbose')
if self.python:
virtualenv.extend(('--python', self.python))
# Add in any user supplied pip args
if self.extra_virtualenv_arg:
virtualenv.extend(self.extra_virtualenv_arg)
virtualenv.append(self.package_dir)
subprocess.check_call(virtualenv)
def venv_bin(self, binary_name):
return os.path.abspath(os.path.join(self.bin_dir, binary_name))
def pip_preinstall(self, *args):
return self.pip_preinstall_prefix + self.pip_args + list(args)
def pip(self, *args):
return self.pip_prefix + self.pip_args + list(args)
def install_dependencies(self):
# Install preinstall stage packages. This is handy if you need
# a custom package to install dependencies (think something
# along lines of setuptools), but that does not get installed
# by default virtualenv.
if self.upgrade_pip:
subprocess.check_call(self.pip_preinstall('-U', 'pip'))
if self.preinstall:
subprocess.check_call(self.pip_preinstall(*self.preinstall))
requirements_path = os.path.join(self.sourcedirectory, self.requirements_filename)
if os.path.exists(requirements_path):
subprocess.check_call(self.pip('-r', requirements_path))
def run_tests(self):
python = self.venv_bin('python')
setup_py = os.path.join(self.sourcedirectory, 'setup.py')
if os.path.exists(setup_py):
subprocess.check_call([python, 'setup.py', 'test'], cwd=self.sourcedirectory)
def find_script_files(self):
"""Find list of files containing python shebangs in the bin directory"""
command = ['grep', '-l', '-r', '-e',
r'^#!.*bin/\(env \)\?{0}'.format(_PYTHON_INTERPRETERS_REGEX),
self.bin_dir]
grep_proc = subprocess.Popen(command, stdout=subprocess.PIPE)
files, stderr = grep_proc.communicate()
return files.strip().split('\n')
def fix_shebangs(self):
"""Translate /usr/bin/python and /usr/bin/env python shebang
lines to point to our virtualenv python.
"""
pythonpath = os.path.join(self.virtualenv_install_dir, 'bin/python')
for f in self.find_script_files():
regex = r's-^#!.*bin/\(env \)\?{names}\"\?-#!{pythonpath}-'\
.format(names=_PYTHON_INTERPRETERS_REGEX, pythonpath=re.escape(pythonpath))
subprocess.check_call(['sed', '-i', regex, f])
def fix_activate_path(self):
"""Replace the `VIRTUAL_ENV` path in bin/activate to reflect the
post-install path of the virtualenv.
"""
activate_settings = [
[
'VIRTUAL_ENV="{0}"'.format(self.virtualenv_install_dir),
r'^VIRTUAL_ENV=.*$',
"activate"
],
[
'setenv VIRTUAL_ENV "{0}"'.format(self.virtualenv_install_dir),
r'^setenv VIRTUAL_ENV.*$',
"activate.csh"
],
[
'set -gx VIRTUAL_ENV "{0}"'.format(self.virtualenv_install_dir),
r'^set -gx VIRTUAL_ENV.*$',
"activate.fish"
],
]
for activate_args in activate_settings:
virtualenv_path = activate_args[0]
pattern = re.compile(activate_args[1], flags=re.M)
activate_file = activate_args[2]
with open(self.venv_bin(activate_file), 'r+') as fh:
content = pattern.sub(virtualenv_path, fh.read())
fh.seek(0)
fh.truncate()
fh.write(content)
def install_package(self):
if not self.skip_install:
subprocess.check_call(self.pip('.'), cwd=os.path.abspath(self.sourcedirectory))
def fix_local_symlinks(self):
# The virtualenv might end up with a local folder that points outside the package
# Specifically it might point at the build environment that created it!
# Make those links relative
# See https://github.com/pypa/virtualenv/commit/5cb7cd652953441a6696c15bdac3c4f9746dfaa1
local_dir = os.path.join(self.package_dir, "local")
if not os.path.isdir(local_dir):
return
elif os.path.samefile(self.package_dir, local_dir):
# "local" points directly to its containing directory
os.unlink(local_dir)
os.symlink(".", local_dir)
return
for d in os.listdir(local_dir):
path = os.path.join(local_dir, d)
if not os.path.islink(path):
continue
existing_target = os.readlink(path)
if not os.path.isabs(existing_target):
# If the symlink is already relative, we don't
# want to touch it.
continue
new_target = os.path.relpath(existing_target, local_dir)
os.unlink(path)
os.symlink(new_target, path)
|