Mercurial > hg
view mercurial/rcutil.py @ 45098:20a65e397943
patch: refactor content diffing part in separate fn so extensions can wrap
Right now extdiff uses it's own logic using archival to diff two versions of
file using external diff tools. This makes the extdiff functionality
non-extensible.
This series is an attempt to refactor core patch and diff functionality so that
extdiff can wrap and reuse it. This will help us in using external diffing tools
at more places and not just extdiff command only then.
Differential Revision: https://phab.mercurial-scm.org/D8685
author | Pulkit Goyal <7895pulkit@gmail.com> |
---|---|
date | Mon, 06 Jul 2020 15:31:53 +0530 |
parents | 238790674d69 |
children | 89a2afe31e82 |
line wrap: on
line source
# rcutil.py - utilities about config paths, special config sections etc. # # Copyright Mercurial Contributors # # 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 import os from . import ( encoding, pycompat, util, ) from .utils import resourceutil if pycompat.iswindows: from . import scmwindows as scmplatform else: from . import scmposix as scmplatform fallbackpager = scmplatform.fallbackpager systemrcpath = scmplatform.systemrcpath userrcpath = scmplatform.userrcpath def _expandrcpath(path): '''path could be a file or a directory. return a list of file paths''' p = util.expandpath(path) if os.path.isdir(p): join = os.path.join return sorted( join(p, f) for f, k in util.listdir(p) if f.endswith(b'.rc') ) return [p] def envrcitems(env=None): '''Return [(section, name, value, source)] config items. The config items are extracted from environment variables specified by env, used to override systemrc, but not userrc. If env is not provided, encoding.environ will be used. ''' if env is None: env = encoding.environ checklist = [ (b'EDITOR', b'ui', b'editor'), (b'VISUAL', b'ui', b'editor'), (b'PAGER', b'pager', b'pager'), ] result = [] for envname, section, configname in checklist: if envname not in env: continue result.append((section, configname, env[envname], b'$%s' % envname)) return result def default_rc_resources(): """return rc resource IDs in defaultrc""" rsrcs = resourceutil.contents(b'mercurial.defaultrc') return [ (b'mercurial.defaultrc', r) for r in sorted(rsrcs) if resourceutil.is_resource(b'mercurial.defaultrc', r) and r.endswith(b'.rc') ] def rccomponents(): '''return an ordered [(type, obj)] about where to load configs. respect $HGRCPATH. if $HGRCPATH is empty, only .hg/hgrc of current repo is used. if $HGRCPATH is not set, the platform default will be used. if a directory is provided, *.rc files under it will be used. type could be either 'path', 'items' or 'resource'. If type is 'path', obj is a string, and is the config file path. if type is 'items', obj is a list of (section, name, value, source) that should fill the config directly. If type is 'resource', obj is a tuple of (package name, resource name). ''' envrc = (b'items', envrcitems()) if b'HGRCPATH' in encoding.environ: # assume HGRCPATH is all about user configs so environments can be # overridden. _rccomponents = [envrc] for p in encoding.environ[b'HGRCPATH'].split(pycompat.ospathsep): if not p: continue _rccomponents.extend((b'path', p) for p in _expandrcpath(p)) else: _rccomponents = [(b'resource', r) for r in default_rc_resources()] normpaths = lambda paths: [ (b'path', os.path.normpath(p)) for p in paths ] _rccomponents.extend(normpaths(systemrcpath())) _rccomponents.append(envrc) _rccomponents.extend(normpaths(userrcpath())) return _rccomponents def defaultpagerenv(): '''return a dict of default environment variables and their values, intended to be set before starting a pager. ''' return {b'LESS': b'FRX', b'LV': b'-c'} def use_repo_hgrc(): """True if repositories `.hg/hgrc` config should be read""" return b'HGRCSKIPREPO' not in encoding.environ