Mercurial > hg
view mercurial/rcutil.py @ 43957:7c3118b9a9db
revlog: split the content verification of a node into a separate method
This will be used by LFS to tune what is skipped.
In the future, this could also be used by LFS to indicate which nodes tagged
with `skipread` are simply in need of a blob fetch, so that they can be done in
a batch later. (Currently, `skipread` also indicates censored data and errors.)
Additionally, it could be used to cache the sha1 hash value for each blob so
that large blobs don't need to be re-read and re-hashed if they are used by
multiple nodes.
Differential Revision: https://phab.mercurial-scm.org/D7710
author | Matt Harbison <matt_harbison@yahoo.com> |
---|---|
date | Sun, 22 Dec 2019 16:36:09 -0500 |
parents | 86fe85364811 |
children | 1864efbe90d9 |
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# 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 defaultrcpath(): '''return rc paths in defaultrc''' defaultpath = os.path.join(resourceutil.datapath, b'defaultrc') return _expandrcpath(defaultpath) 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' or 'items', 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. ''' 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: normpaths = lambda paths: [ (b'path', os.path.normpath(p)) for p in paths ] _rccomponents = normpaths(defaultrcpath() + 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'}