60 lines
2.4 KiB
Python
Executable file
60 lines
2.4 KiB
Python
Executable file
#!/usr/bin/env python
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import os
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import sys
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import argparse
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import pip
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import six
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import subprocess
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from importlib import import_module
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def main():
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parser = argparse.ArgumentParser("Creates a Python virtualenv. Its Python version is equal to "
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"the Python version this command is executed with.")
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parser.parse_args()
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base_dir = os.path.abspath(os.path.join(__file__, '..', '..'))
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python_version = '.'.join(str(num) for num in sys.version_info[0:3])
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python_interpreter = os.path.abspath(sys.executable)
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venv_name = 'zulip-api-py{}-venv'.format(python_version)
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venv_dir = os.path.join(base_dir, venv_name)
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if not os.path.isdir(venv_dir):
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if subprocess.call(['virtualenv', '-p', python_interpreter, venv_dir]):
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raise OSError("The command `virtualenv -p {} {}` failed. Virtualenv not created!"
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.format(python_interpreter, venv_dir))
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else:
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print("New virtualenv created.")
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else:
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print("Virtualenv already exists.")
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if os.path.isdir(os.path.join(venv_dir, 'Scripts')):
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# POSIX compatibility layer and Linux environment emulation for Windows
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# Virtual uses /Scripts instead of /bin on Windows.
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# Read https://virtualenv.pypa.io/en/stable/userguide/
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venv_exec_dir = 'Scripts'
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else:
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venv_exec_dir = 'bin'
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# In order to install all required packages for the venv, we need to activate it. Since
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# the activation script sets environmental variables, it needs to be executed inline with
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# `import_module`.
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activate_module_dir = os.path.abspath(os.path.join(venv_dir, venv_exec_dir))
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sys.path.append(activate_module_dir)
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import_module('activate_this')
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# In order to install all required packages for the venv, `pip` needs to be executed by
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# the venv's Python interpreter. `--prefix venv_dir` ensures that all modules are installed
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# in the right place.
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if subprocess.call([os.path.join(venv_dir, venv_exec_dir, 'pip'),
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'install', '--prefix', venv_dir, '-r', os.path.join(base_dir, 'requirements.txt')]):
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raise OSError("The command `pip install -r {}` failed. Dependencies not installed!"
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.format(os.path.join(base_dir, 'requirements.txt')))
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print("Success! Run `source {}` to activate virtualenv.".format(
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os.path.join(base_dir, venv_dir, venv_exec_dir, 'activate')))
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if __name__ == '__main__':
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main()
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