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#!/usr/bin/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.
from __future__ import absolute_import
from __future__ import print_function
import argparse
import os
import os.path
import subprocess
import sys
from catapult_build import temp_deployment_dir
def DevAppserver(paths, args, reuse_path=None):
"""Starts a dev server for an App Engine app.
Args:
paths: List of paths to files and directories that should be linked (or
copied) in the deployment directory.
args: List of additional arguments to pass to the dev server.
reuse_path: If not None, will re-use an existing path (string) as the
temporary directory from which the DevAppserver will be run from.
"""
with temp_deployment_dir.TempDeploymentDir(
paths, reuse_path=reuse_path) as temp_dir:
print('Running dev server on "%s".' % temp_dir)
script_path = _FindScriptInPath('dev_appserver.py')
if not script_path:
print('This script requires the App Engine SDK to be in PATH.')
sys.exit(1)
subprocess.call([sys.executable, script_path] +
_AddTempDirToYamlPathArgs(temp_dir, args))
def _FindScriptInPath(script_name):
for path in os.environ['PATH'].split(os.pathsep):
script_path = os.path.join(path, script_name)
if os.path.exists(script_path):
return script_path
return None
def _AddTempDirToYamlPathArgs(temp_dir, args):
"""Join `temp_dir` to the positional args, preserving the other args."""
parser = argparse.ArgumentParser()
parser.add_argument('yaml_path', nargs='*')
parser.add_argument('--run_pinpoint', default=False, action='store_true')
options, remaining_args = parser.parse_known_args(args)
yaml_path_args = [
os.path.join(temp_dir, yaml_path) for yaml_path in options.yaml_path
]
if not yaml_path_args:
if options.run_pinpoint:
temp_dir += '/pinpoint.yaml'
yaml_path_args = [temp_dir]
return yaml_path_args + remaining_args
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