mirror of
https://gerrit.googlesource.com/git-repo
synced 2024-12-21 07:16:21 +00:00
3164d40e22
Use open() as a context manager to simplify the close logic and make the code easier to read & understand. This is also more Pythonic. Change-Id: I579d03cca86f99b2c6c6a1f557f6e5704e2515a7 Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/244734 Reviewed-by: David Pursehouse <dpursehouse@collab.net> Tested-by: Mike Frysinger <vapier@google.com>
115 lines
2.8 KiB
Python
115 lines
2.8 KiB
Python
# -*- coding:utf-8 -*-
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#
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# Copyright (C) 2008 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import print_function
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import os
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import re
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import sys
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import subprocess
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import tempfile
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from error import EditorError
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import platform_utils
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class Editor(object):
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"""Manages the user's preferred text editor."""
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_editor = None
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globalConfig = None
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@classmethod
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def _GetEditor(cls):
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if cls._editor is None:
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cls._editor = cls._SelectEditor()
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return cls._editor
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@classmethod
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def _SelectEditor(cls):
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e = os.getenv('GIT_EDITOR')
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if e:
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return e
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if cls.globalConfig:
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e = cls.globalConfig.GetString('core.editor')
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if e:
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return e
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e = os.getenv('VISUAL')
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if e:
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return e
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e = os.getenv('EDITOR')
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if e:
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return e
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if os.getenv('TERM') == 'dumb':
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print(
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"""No editor specified in GIT_EDITOR, core.editor, VISUAL or EDITOR.
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Tried to fall back to vi but terminal is dumb. Please configure at
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least one of these before using this command.""", file=sys.stderr)
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sys.exit(1)
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return 'vi'
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@classmethod
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def EditString(cls, data):
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"""Opens an editor to edit the given content.
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Args:
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data : the text to edit
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Returns:
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new value of edited text; None if editing did not succeed
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"""
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editor = cls._GetEditor()
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if editor == ':':
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return data
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fd, path = tempfile.mkstemp()
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try:
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os.write(fd, data)
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os.close(fd)
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fd = None
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if platform_utils.isWindows():
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# Split on spaces, respecting quoted strings
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import shlex
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args = shlex.split(editor)
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shell = False
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elif re.compile("^.*[$ \t'].*$").match(editor):
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args = [editor + ' "$@"', 'sh']
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shell = True
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else:
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args = [editor]
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shell = False
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args.append(path)
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try:
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rc = subprocess.Popen(args, shell=shell).wait()
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except OSError as e:
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raise EditorError('editor failed, %s: %s %s'
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% (str(e), editor, path))
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if rc != 0:
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raise EditorError('editor failed with exit status %d: %s %s'
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% (rc, editor, path))
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with open(path) as fd2:
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return fd2.read()
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finally:
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if fd:
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os.close(fd)
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platform_utils.remove(path)
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