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#!/usr/bin/env python2
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.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]
)
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()
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