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tmux-2.3

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bootstrap_env.py

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#!/usr/bin/env python

from __future__ import absolute_import, print_function, unicode_literals

import os

import subprocess

import sys

def warning(*objs):

print("WARNING: ", *objs, file=sys.stderr)

def fail(message):

sys.exit("Error: {message}".format(message=message))

def has_module(module_name):

try:

import imp

imp.find_module(module_name)

del imp

return True

except ImportError:

return False

def which(exe=None, throw=True):

"""Return path of bin. Python clone of /usr/bin/which.

from salt.util - https://www.github.com/saltstack/salt - license apache

:param exe: Application to search PATHs for.

:type exe: string

:param throw: Raise ``Exception`` if not found in paths

:type throw: bool

:rtype: string

"""

if exe:

if os.access(exe, os.X_OK):

return exe

# default path based on busybox's default

default_path = '/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin'

search_path = os.environ.get('PATH', default_path)

for path in search_path.split(os.pathsep):

full_path = os.path.join(path, exe)

if os.access(full_path, os.X_OK):

return full_path

message = (

'{0!r} could not be found in the following search '

'path: {1!r}'.format(

exe, search_path

)

)

if throw:

raise Exception(message)

else:

print(message)

return None

project_dir = os.path.dirname(os.path.realpath(__file__))

env_dir = os.path.join(project_dir, '.venv')

pip_bin = os.path.join(env_dir, 'bin', 'pip')

python_bin = os.path.join(env_dir, 'bin', 'python')

virtualenv_bin = which('virtualenv', throw=False)

virtualenv_exists = os.path.exists(env_dir) and os.path.isfile(python_bin)

sphinx_requirements_filepath = os.path.join(

project_dir, 'requirements', 'doc.txt')

test_requirements_filepath = os.path.join(

project_dir, 'requirements', 'test.txt')

try:

import virtualenv # NOQA

except ImportError:

message = (

'Virtualenv is required for this bootstrap to run.\n'

'Install virtualenv via:\n'

'\t$ [sudo] pip install virtualenv'

)

fail(message)

try:

import pip # NOQA

except ImportError:

message = (

'pip is required for this bootstrap to run.\n'

'Find instructions on how to install at: %s' %

'http://pip.readthedocs.io/en/latest/installing.html'

)

fail(message)

def main():

if not which('entr', throw=False):

message = (

'\nentr(1) is used in this app as a cross platform file watcher.'

'You can install it via your package manager on most POSIX '

'systems. See the site at http://entrproject.org/\n'

)

print(message)

if not virtualenv_exists:

virtualenv_bin = which('virtualenv', throw=False)

subprocess.check_call(

[virtualenv_bin, env_dir]

)

subprocess.check_call(

[pip_bin, 'install', '-e', project_dir]

)

if not has_module('pytest'):

subprocess.check_call(

[pip_bin, 'install', '-r', test_requirements_filepath]

)

if not os.path.isfile(os.path.join(env_dir, 'bin', 'sphinx-quickstart')):

subprocess.check_call(

[pip_bin, 'install', '-r', sphinx_requirements_filepath]

)

if os.path.exists(os.path.join(env_dir, 'build')):

os.removedirs(os.path.join(env_dir, 'build'))

if __name__ == '__main__':

main()