Mercurial > hg
view mercurial/help/hg.1.txt @ 33438:8056481caa81
codemod: simplify nested withs
This is the result of running:
python codemod_nestedwith.py **/*.py
where codemod_nestedwith.py looks like this:
#!/usr/bin/env python
# codemod_nestedwith.py - codemod tool to rewrite nested with
#
# Copyright 2017 Facebook, Inc.
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import, print_function
import sys
import redbaron
def readpath(path):
with open(path) as f:
return f.read()
def writepath(path, content):
with open(path, 'w') as f:
f.write(content)
def main(argv):
if not argv:
print('Usage: codemod_nestedwith.py FILES')
for i, path in enumerate(argv):
print('(%d/%d) scanning %s' % (i + 1, len(argv), path))
changed = False
red = redbaron.RedBaron(readpath(path))
processed = set()
for node in red.find_all('with'):
if node in processed or node.type != 'with':
continue
top = node
child = top[0]
while True:
if len(top) > 1 or child.type != 'with':
break
# estimate line length after merging two "with"s
new = '%swith %s:' % (top.indentation, top.contexts.dumps())
new += ', %s' % child.contexts.dumps()
# only do the rewrite if the end result is within 80 chars
if len(new) > 80:
break
processed.add(child)
top.contexts.extend(child.contexts)
top.value = child.value
top.value.decrease_indentation(4)
child = child[0]
changed = True
if changed:
print('updating %s' % path)
writepath(path, red.dumps())
if __name__ == "__main__":
sys.exit(main(sys.argv[1:]))
Differential Revision: https://phab.mercurial-scm.org/D77
author | Jun Wu <quark@fb.com> |
---|---|
date | Thu, 13 Jul 2017 18:31:35 -0700 |
parents | 75149f84eac7 |
children | 854a7315603e |
line wrap: on
line source
==== hg ==== --------------------------------------- Mercurial source code management system --------------------------------------- :Author: Matt Mackall <mpm@selenic.com> :Organization: Mercurial :Manual section: 1 :Manual group: Mercurial Manual .. contents:: :backlinks: top :class: htmlonly :depth: 1 Synopsis """""""" **hg** *command* [*option*]... [*argument*]... Description """"""""""" The **hg** command provides a command line interface to the Mercurial system. Command Elements """""""""""""""" files... indicates one or more filename or relative path filenames; see `File Name Patterns`_ for information on pattern matching path indicates a path on the local machine revision indicates a changeset which can be specified as a changeset revision number, a tag, or a unique substring of the changeset hash value repository path either the pathname of a local repository or the URI of a remote repository. .. include:: hg.1.gendoc.txt Files """"" ``/etc/mercurial/hgrc``, ``$HOME/.hgrc``, ``.hg/hgrc`` This file contains defaults and configuration. Values in ``.hg/hgrc`` override those in ``$HOME/.hgrc``, and these override settings made in the global ``/etc/mercurial/hgrc`` configuration. See |hgrc(5)|_ for details of the contents and format of these files. ``.hgignore`` This file contains regular expressions (one per line) that describe file names that should be ignored by **hg**. For details, see |hgignore(5)|_. ``.hgsub`` This file defines the locations of all subrepositories, and tells where the subrepository checkouts came from. For details, see :hg:`help subrepos`. ``.hgsubstate`` This file is where Mercurial stores all nested repository states. *NB: This file should not be edited manually.* ``.hgtags`` This file contains changeset hash values and text tag names (one of each separated by spaces) that correspond to tagged versions of the repository contents. The file content is encoded using UTF-8. ``.hg/last-message.txt`` This file is used by :hg:`commit` to store a backup of the commit message in case the commit fails. ``.hg/localtags`` This file can be used to define local tags which are not shared among repositories. The file format is the same as for ``.hgtags``, but it is encoded using the local system encoding. Some commands (e.g. revert) produce backup files ending in ``.orig``, if the ``.orig`` file already exists and is not tracked by Mercurial, it will be overwritten. Bugs """" Probably lots, please post them to the mailing list (see Resources_ below) when you find them. See Also """""""" |hgignore(5)|_, |hgrc(5)|_ Author """""" Written by Matt Mackall <mpm@selenic.com> Resources """"""""" Main Web Site: https://mercurial-scm.org/ Source code repository: https://www.mercurial-scm.org/repo/hg Mailing list: https://www.mercurial-scm.org/mailman/listinfo/mercurial/ Copying """"""" Copyright (C) 2005-2017 Matt Mackall. Free use of this software is granted under the terms of the GNU General Public License version 2 or any later version. .. include:: common.txt