| # 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("'", "'\"'\"'") + "'" |