264b0885e8
The charm-helpers project have re-licensed to Apache 2.0 inline with the agreed licensing approach to intefaces, layers and charms generally. Resync helpers to bring charmhelpers inline with charm codebase. Change-Id: I99e94eec42adc19ab92b14a20e59cc60360e0b58
44 lines
1.6 KiB
Python
44 lines
1.6 KiB
Python
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
# Copyright 2014-2015 Canonical Limited.
|
|
#
|
|
# 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.
|
|
|
|
__author__ = 'Jorge Niedbalski <niedbalski@ubuntu.com>'
|
|
|
|
import os
|
|
import subprocess
|
|
|
|
|
|
def sed(filename, before, after, flags='g'):
|
|
"""
|
|
Search and replaces the given pattern on filename.
|
|
|
|
:param filename: relative or absolute file path.
|
|
:param before: expression to be replaced (see 'man sed')
|
|
:param after: expression to replace with (see 'man sed')
|
|
:param flags: sed-compatible regex flags in example, to make
|
|
the search and replace case insensitive, specify ``flags="i"``.
|
|
The ``g`` flag is always specified regardless, so you do not
|
|
need to remember to include it when overriding this parameter.
|
|
:returns: If the sed command exit code was zero then return,
|
|
otherwise raise CalledProcessError.
|
|
"""
|
|
expression = r's/{0}/{1}/{2}'.format(before,
|
|
after, flags)
|
|
|
|
return subprocess.check_call(["sed", "-i", "-r", "-e",
|
|
expression,
|
|
os.path.expanduser(filename)])
|