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#!/usr/bin/env python
# Copyright 2015 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
'''Bundles the Blimp Engine and its runtime dependencies into a tarball.
The created bundle can be passed as input to docker build. E.g.
docker build - < ../../out-linux/Debug/blimp_engine_deps.tar.gz
'''
import argparse
import errno
import os
import subprocess
import sys
def ReadDependencies(manifest):
"""Read the manifest and return the list of dependencies.
:raises IOError: if the manifest could not be read.
"""
deps = []
with open(manifest) as f:
for line in f.readlines():
# Strip comments.
dep = line.partition('#')[0].strip()
# Ignore empty strings.
if dep:
deps.append(dep)
return deps
def main():
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('--build-dir',
help=('build output directory (e.g. out/Debug)'),
required=True,
metavar='DIR')
parser.add_argument('--dockerfile',
help=('Dockerfile to add to the bundle'),
required=True,
metavar='FILE')
parser.add_argument('--startup-script',
help=('Engine startup script to add to the bundle'),
required=True,
metavar='FILE')
parser.add_argument('--manifest',
help=('engine manifest'),
required=True)
parser.add_argument('--output',
help=('name and path of bundle to create'),
required=True,
metavar='FILE')
args = parser.parse_args()
deps = ReadDependencies(args.manifest)
dockerfile_dirname, dockerfile_basename = os.path.split(args.dockerfile)
startup_script_dirname, startup_script_basename = os.path.split(
args.startup_script)
try:
env = os.environ.copy()
# Use fastest possible mode when gzipping.
env["GZIP"] = "-1"
subprocess.check_output(
["tar",
"-zcf", args.output,
"-C", dockerfile_dirname, dockerfile_basename,
"-C", startup_script_dirname, startup_script_basename,
"-C", args.build_dir] + deps,
# Redirect stderr to stdout, so that its output is captured.
stderr=subprocess.STDOUT,
env=env)
except subprocess.CalledProcessError as e:
print >> sys.stderr, "Failed to create tarball:"
print >> sys.stderr, e.output
sys.exit(1)
if __name__ == "__main__":
main()
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