blob: 543553bdb44b82aefac36ab3ba21838a8fd09845 [file] [log] [blame]
# Copyright 2017 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Allows to use Bash as a shell."""
import re
from starboard.tools.toolchain import abstract
class Shell(abstract.Shell):
"""Constructs command lines using Bash syntax."""
def MaybeQuoteArgument(self, argument):
# Rather than attempting to enumerate the bad shell characters, just
# whitelist common OK ones and quote anything else.
if re.match(r"^[a-zA-Z0-9_=.,\\/+-]+$", argument):
return argument # No quoting necessary.
return "'" + argument.replace("'", "'\"'\"'") + "'"