Mercurial > hg
view hgext/lfs/__init__.py @ 35618:c780e0649e41
lfs: migrate most file filtering from threshold to custom filter
Migrate `lfs.threshold` to more powerful `lfs.filter` added by D4990618 so
people can specify what files to be stored in LFS with more flexibility.
This patch was authored by Jun Wu for the fb-experimental repo, to avoid using
matcher for efficiency[1]. All I've changed here is to register the new
'lfs.track' default so that the tests run cleanly, and adapt the subsequent
language changes. Migrating the remaining uses of 'lfs.threshold' can be done
separately since there's a fallback in place.
[1] https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-December/109388.html
author | Matt Harbison <matt_harbison@yahoo.com> |
---|---|
date | Sun, 31 Dec 2017 02:54:49 -0500 |
parents | 6d6d20658cce |
children | 8580e5898cb7 |
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# lfs - hash-preserving large file support using Git-LFS protocol # # 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. """lfs - large file support (EXPERIMENTAL) Configs:: [lfs] # Remote endpoint. Multiple protocols are supported: # - http(s)://user:pass@example.com/path # git-lfs endpoint # - file:///tmp/path # local filesystem, usually for testing # if unset, lfs will prompt setting this when it must use this value. # (default: unset) url = https://example.com/lfs # Which files to track in LFS. Path tests are "**.extname" for file # extensions, and "path:under/some/directory" for path prefix. Both # are relative to the repository root, and the latter must be quoted. # File size can be tested with the "size()" fileset, and tests can be # joined with fileset operators. (See "hg help filesets.operators".) # # Some examples: # - all() # everything # - none() # nothing # - size(">20MB") # larger than 20MB # - !**.txt # anything not a *.txt file # - **.zip | **.tar.gz | **.7z # some types of compressed files # - "path:bin" # files under "bin" in the project root # - (**.php & size(">2MB")) | (**.js & size(">5MB")) | **.tar.gz # | ("path:bin" & !"path:/bin/README") | size(">1GB") # (default: none()) track = size(">10M") # how many times to retry before giving up on transferring an object retry = 5 # the local directory to store lfs files for sharing across local clones. # If not set, the cache is located in an OS specific cache location. usercache = /path/to/global/cache """ from __future__ import absolute_import from mercurial.i18n import _ from mercurial import ( bundle2, changegroup, context, exchange, extensions, filelog, fileset, hg, localrepo, minifileset, node, registrar, revlog, scmutil, upgrade, vfs as vfsmod, wireproto, ) from . import ( blobstore, wrapper, ) # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should # be specifying the version(s) of Mercurial they are tested with, or # leave the attribute unspecified. testedwith = 'ships-with-hg-core' configtable = {} configitem = registrar.configitem(configtable) configitem('experimental', 'lfs.user-agent', default=None, ) configitem('lfs', 'url', default=None, ) configitem('lfs', 'usercache', default=None, ) # Deprecated configitem('lfs', 'threshold', default=None, ) configitem('lfs', 'track', default='none()', ) configitem('lfs', 'retry', default=5, ) cmdtable = {} command = registrar.command(cmdtable) templatekeyword = registrar.templatekeyword() def featuresetup(ui, supported): # don't die on seeing a repo with the lfs requirement supported |= {'lfs'} def uisetup(ui): localrepo.localrepository.featuresetupfuncs.add(featuresetup) def reposetup(ui, repo): # Nothing to do with a remote repo if not repo.local(): return trackspec = repo.ui.config('lfs', 'track') # deprecated config: lfs.threshold threshold = repo.ui.configbytes('lfs', 'threshold') if threshold: fileset.parse(trackspec) # make sure syntax errors are confined trackspec = "(%s) | size('>%d')" % (trackspec, threshold) repo.svfs.options['lfstrack'] = minifileset.compile(trackspec) repo.svfs.lfslocalblobstore = blobstore.local(repo) repo.svfs.lfsremoteblobstore = blobstore.remote(repo) # Push hook repo.prepushoutgoinghooks.add('lfs', wrapper.prepush) if 'lfs' not in repo.requirements: def checkrequireslfs(ui, repo, **kwargs): if 'lfs' not in repo.requirements: last = kwargs.get('node_last') _bin = node.bin if last: s = repo.set('%n:%n', _bin(kwargs['node']), _bin(last)) else: s = repo.set('%n', _bin(kwargs['node'])) for ctx in s: # TODO: is there a way to just walk the files in the commit? if any(ctx[f].islfs() for f in ctx.files() if f in ctx): repo.requirements.add('lfs') repo._writerequirements() break ui.setconfig('hooks', 'commit.lfs', checkrequireslfs, 'lfs') ui.setconfig('hooks', 'pretxnchangegroup.lfs', checkrequireslfs, 'lfs') def wrapfilelog(filelog): wrapfunction = extensions.wrapfunction wrapfunction(filelog, 'addrevision', wrapper.filelogaddrevision) wrapfunction(filelog, 'renamed', wrapper.filelogrenamed) wrapfunction(filelog, 'size', wrapper.filelogsize) def extsetup(ui): wrapfilelog(filelog.filelog) wrapfunction = extensions.wrapfunction wrapfunction(scmutil, 'wrapconvertsink', wrapper.convertsink) wrapfunction(upgrade, '_finishdatamigration', wrapper.upgradefinishdatamigration) wrapfunction(upgrade, 'preservedrequirements', wrapper.upgraderequirements) wrapfunction(upgrade, 'supporteddestrequirements', wrapper.upgraderequirements) wrapfunction(changegroup, 'supportedoutgoingversions', wrapper.supportedoutgoingversions) wrapfunction(changegroup, 'allsupportedversions', wrapper.allsupportedversions) wrapfunction(exchange, 'push', wrapper.push) wrapfunction(wireproto, '_capabilities', wrapper._capabilities) wrapfunction(context.basefilectx, 'cmp', wrapper.filectxcmp) wrapfunction(context.basefilectx, 'isbinary', wrapper.filectxisbinary) context.basefilectx.islfs = wrapper.filectxislfs revlog.addflagprocessor( revlog.REVIDX_EXTSTORED, ( wrapper.readfromstore, wrapper.writetostore, wrapper.bypasscheckhash, ), ) wrapfunction(hg, 'clone', wrapper.hgclone) wrapfunction(hg, 'postshare', wrapper.hgpostshare) # Make bundle choose changegroup3 instead of changegroup2. This affects # "hg bundle" command. Note: it does not cover all bundle formats like # "packed1". Using "packed1" with lfs will likely cause trouble. names = [k for k, v in exchange._bundlespeccgversions.items() if v == '02'] for k in names: exchange._bundlespeccgversions[k] = '03' # bundlerepo uses "vfsmod.readonlyvfs(othervfs)", we need to make sure lfs # options and blob stores are passed from othervfs to the new readonlyvfs. wrapfunction(vfsmod.readonlyvfs, '__init__', wrapper.vfsinit) # when writing a bundle via "hg bundle" command, upload related LFS blobs wrapfunction(bundle2, 'writenewbundle', wrapper.writenewbundle) @templatekeyword('lfs_files') def lfsfiles(repo, ctx, **args): """List of strings. LFS files added or modified by the changeset.""" pointers = wrapper.pointersfromctx(ctx) # {path: pointer} return sorted(pointers.keys()) @command('debuglfsupload', [('r', 'rev', [], _('upload large files introduced by REV'))]) def debuglfsupload(ui, repo, **opts): """upload lfs blobs added by the working copy parent or given revisions""" revs = opts.get('rev', []) pointers = wrapper.extractpointers(repo, scmutil.revrange(repo, revs)) wrapper.uploadblobs(repo, pointers)