xonsh/xonsh-in-docker.py

#!/usr/bin/env python
import sys 
import subprocess
import os
import argparse

program_description = """Build and run Xonsh in a fresh, controlled 
    environment using docker """

parser = argparse.ArgumentParser(description=program_description)

parser.add_argument('env', nargs='*', default=[], metavar='ENV=value')
parser.add_argument('--python', '-p', default='3.4', metavar='python_version')
parser.add_argument('--ptk', '-t', default='1.00', metavar='ptk_version')
parser.add_argument('--rm', action='store_true')
parser.add_argument('--command', '-c', default='xonsh', 
                    metavar='command')

args = parser.parse_args()

docker_script = """
from python:{python_version}
RUN pip install --upgrade pip && pip install \\
  ply \\
  prompt-toolkit=={ptk_version} \\
  pygments
RUN mkdir /xonsh
WORKDIR /xonsh
ADD ./ ./
RUN python setup.py install
""".format(
        python_version = args.python,
        ptk_version = args.ptk)

print('Building and running Xonsh')
print('Using python ', args.python)
print('Using prompt-toolkit ', args.ptk)

with open('./Dockerfile', 'w+') as f:
    f.write(docker_script)

env_string = ' '.join(args.env)

subprocess.call(['docker', 'build', '-t' , 'xonsh', '.'])
os.remove('./Dockerfile')

run_args = ['docker', 'run', '-ti']
for e in args.env:
    run_args += ['-e', e]
if args.rm:
    run_args.append('--rm')
run_args += ['xonsh', args.command]
subprocess.call(run_args)