create.py

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#!/usr/bin/env python
#
# Copyright 2017 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
 
 
"""Create the asset."""
 
 
import argparse
import glob
import os
import shutil
import subprocess
 
 
# See https://cloud.google.com/sdk/downloads#versioned for documentation on
# scripting gcloud and also for updates.
BASE_URL = 'https://dl.google.com/dl/cloudsdk/channels/rapid/downloads/%s'
GCLOUD_BASE_NAME='google-cloud-sdk'
GCLOUD_ARCHIVE = '%s-343.0.0-linux-x86_64.tar.gz' % GCLOUD_BASE_NAME
GCLOUD_URL = BASE_URL % GCLOUD_ARCHIVE
 
 
def create_asset(target_dir):
  """Create the asset."""
  target_dir = os.path.abspath(target_dir)
  subprocess.check_call(['curl', GCLOUD_URL, '-o', GCLOUD_ARCHIVE])
 
  # Extract the arcive to the target directory and remove it.
  subprocess.check_call(['tar', '-xzf', GCLOUD_ARCHIVE,
                         '--strip-components=1',
                         '-C', target_dir])
 
  # Substitute the HOME directory in the environment so we don't overwrite
  # an existing gcloud configuration in $HOME/.config/gcloud
  env = os.environ.copy()
  env["HOME"] = target_dir
  gcloud_exe = os.path.join(target_dir, 'bin', 'gcloud')
  subprocess.check_call([gcloud_exe, 'components',
                         'install', 'beta', 'cloud-datastore-emulator',
                         '--quiet'], env=env)
  subprocess.check_call([gcloud_exe, 'components',
                         'install', 'beta', 'bigtable',
                         '--quiet'], env=env)
  subprocess.check_call([gcloud_exe, 'components',
                         'install', 'pubsub-emulator',
                         '--quiet'], env=env)
  subprocess.check_call([gcloud_exe, 'components',
                         'install', 'beta', 'cloud-firestore-emulator',
                         '--quiet'], env=env)
  # As of gcloud v250.0.0 and Cloud Firestore Emulator v1.4.6, there is a bug
  # that something expects the JAR to be executable, but it isn't.
  fs_jar = 'platform/cloud-firestore-emulator/cloud-firestore-emulator.jar'
  subprocess.check_call(['chmod', '+x', os.path.join(target_dir, fs_jar)])
  subprocess.check_call([gcloud_exe, 'components','update', '--quiet'], env=env)
 
  # Remove the tarball.
  os.remove(GCLOUD_ARCHIVE)
 
 
def main():
  parser = argparse.ArgumentParser()
  parser.add_argument('--target_dir', '-t', required=True)
  args = parser.parse_args()
  create_asset(args.target_dir)
 
 
if __name__ == '__main__':
  main()