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# __init__.py - remotefilelog extension
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#
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# Copyright 2013 Facebook, Inc.
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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"""remotefilelog causes Mercurial to lazilly fetch file contents (EXPERIMENTAL)
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This extension is HIGHLY EXPERIMENTAL. There are NO BACKWARDS COMPATIBILITY
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GUARANTEES. This means that repositories created with this extension may
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only be usable with the exact version of this extension/Mercurial that was
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used. The extension attempts to enforce this in order to prevent repository
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corruption.
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remotefilelog works by fetching file contents lazily and storing them
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in a cache on the client rather than in revlogs. This allows enormous
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histories to be transferred only partially, making them easier to
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operate on.
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Configs:
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``packs.maxchainlen`` specifies the maximum delta chain length in pack files
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``packs.maxpacksize`` specifies the maximum pack file size
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``packs.maxpackfilecount`` specifies the maximum number of packs in the
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shared cache (trees only for now)
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``remotefilelog.backgroundprefetch`` runs prefetch in background when True
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``remotefilelog.bgprefetchrevs`` specifies revisions to fetch on commit and
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update, and on other commands that use them. Different from pullprefetch.
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``remotefilelog.gcrepack`` does garbage collection during repack when True
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``remotefilelog.nodettl`` specifies maximum TTL of a node in seconds before
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it is garbage collected
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``remotefilelog.repackonhggc`` runs repack on hg gc when True
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``remotefilelog.prefetchdays`` specifies the maximum age of a commit in
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days after which it is no longer prefetched.
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``remotefilelog.prefetchdelay`` specifies delay between background
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prefetches in seconds after operations that change the working copy parent
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``remotefilelog.data.gencountlimit`` constraints the minimum number of data
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pack files required to be considered part of a generation. In particular,
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minimum number of packs files > gencountlimit.
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``remotefilelog.data.generations`` list for specifying the lower bound of
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each generation of the data pack files. For example, list ['100MB','1MB']
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or ['1MB', '100MB'] will lead to three generations: [0, 1MB), [
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1MB, 100MB) and [100MB, infinity).
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``remotefilelog.data.maxrepackpacks`` the maximum number of pack files to
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include in an incremental data repack.
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``remotefilelog.data.repackmaxpacksize`` the maximum size of a pack file for
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it to be considered for an incremental data repack.
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``remotefilelog.data.repacksizelimit`` the maximum total size of pack files
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to include in an incremental data repack.
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``remotefilelog.history.gencountlimit`` constraints the minimum number of
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history pack files required to be considered part of a generation. In
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particular, minimum number of packs files > gencountlimit.
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``remotefilelog.history.generations`` list for specifying the lower bound of
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each generation of the historhy pack files. For example, list [
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'100MB', '1MB'] or ['1MB', '100MB'] will lead to three generations: [
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0, 1MB), [1MB, 100MB) and [100MB, infinity).
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``remotefilelog.history.maxrepackpacks`` the maximum number of pack files to
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include in an incremental history repack.
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``remotefilelog.history.repackmaxpacksize`` the maximum size of a pack file
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for it to be considered for an incremental history repack.
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``remotefilelog.history.repacksizelimit`` the maximum total size of pack
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files to include in an incremental history repack.
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``remotefilelog.backgroundrepack`` automatically consolidate packs in the
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background
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``remotefilelog.cachepath`` path to cache
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``remotefilelog.cachegroup`` if set, make cache directory sgid to this
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group
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``remotefilelog.cacheprocess`` binary to invoke for fetching file data
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``remotefilelog.debug`` turn on remotefilelog-specific debug output
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``remotefilelog.excludepattern`` pattern of files to exclude from pulls
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``remotefilelog.includepattern`` pattern of files to include in pulls
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``remotefilelog.fetchwarning``: message to print when too many
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single-file fetches occur
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``remotefilelog.getfilesstep`` number of files to request in a single RPC
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``remotefilelog.getfilestype`` if set to 'threaded' use threads to fetch
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files, otherwise use optimistic fetching
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``remotefilelog.pullprefetch`` revset for selecting files that should be
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eagerly downloaded rather than lazily
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``remotefilelog.reponame`` name of the repo. If set, used to partition
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data from other repos in a shared store.
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``remotefilelog.server`` if true, enable server-side functionality
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``remotefilelog.servercachepath`` path for caching blobs on the server
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``remotefilelog.serverexpiration`` number of days to keep cached server
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blobs
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``remotefilelog.validatecache`` if set, check cache entries for corruption
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before returning blobs
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``remotefilelog.validatecachelog`` if set, check cache entries for
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corruption before returning metadata
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"""
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from __future__ import absolute_import
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import os
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import time
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import traceback
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from mercurial.node import hex
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from mercurial.i18n import _
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from mercurial import (
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changegroup,
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changelog,
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cmdutil,
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commands,
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configitems,
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context,
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copies,
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debugcommands as hgdebugcommands,
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dispatch,
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error,
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exchange,
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extensions,
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hg,
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localrepo,
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match,
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merge,
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node as nodemod,
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patch,
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registrar,
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repair,
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repoview,
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revset,
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scmutil,
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smartset,
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streamclone,
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templatekw,
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util,
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)
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from . import (
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constants,
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debugcommands,
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fileserverclient,
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remotefilectx,
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remotefilelog,
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remotefilelogserver,
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repack as repackmod,
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shallowbundle,
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shallowrepo,
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shallowstore,
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shallowutil,
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shallowverifier,
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)
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# ensures debug commands are registered
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hgdebugcommands.command
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cmdtable = {}
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command = registrar.command(cmdtable)
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configtable = {}
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configitem = registrar.configitem(configtable)
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configitem('remotefilelog', 'debug', default=False)
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configitem('remotefilelog', 'reponame', default='')
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configitem('remotefilelog', 'cachepath', default=None)
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configitem('remotefilelog', 'cachegroup', default=None)
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configitem('remotefilelog', 'cacheprocess', default=None)
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configitem('remotefilelog', 'cacheprocess.includepath', default=None)
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configitem("remotefilelog", "cachelimit", default="1000 GB")
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configitem('remotefilelog', 'fallbackpath', default=configitems.dynamicdefault,
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alias=[('remotefilelog', 'fallbackrepo')])
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configitem('remotefilelog', 'validatecachelog', default=None)
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configitem('remotefilelog', 'validatecache', default='on')
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configitem('remotefilelog', 'server', default=None)
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configitem('remotefilelog', 'servercachepath', default=None)
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configitem("remotefilelog", "serverexpiration", default=30)
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configitem('remotefilelog', 'backgroundrepack', default=False)
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configitem('remotefilelog', 'bgprefetchrevs', default=None)
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configitem('remotefilelog', 'pullprefetch', default=None)
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configitem('remotefilelog', 'backgroundprefetch', default=False)
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configitem('remotefilelog', 'prefetchdelay', default=120)
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configitem('remotefilelog', 'prefetchdays', default=14)
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configitem('remotefilelog', 'getfilesstep', default=10000)
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configitem('remotefilelog', 'getfilestype', default='optimistic')
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configitem('remotefilelog', 'batchsize', configitems.dynamicdefault)
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configitem('remotefilelog', 'fetchwarning', default='')
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configitem('remotefilelog', 'includepattern', default=None)
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configitem('remotefilelog', 'excludepattern', default=None)
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configitem('remotefilelog', 'gcrepack', default=False)
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configitem('remotefilelog', 'repackonhggc', default=False)
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configitem('repack', 'chainorphansbysize', default=True)
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configitem('packs', 'maxpacksize', default=0)
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configitem('packs', 'maxchainlen', default=1000)
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# default TTL limit is 30 days
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_defaultlimit = 60 * 60 * 24 * 30
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configitem('remotefilelog', 'nodettl', default=_defaultlimit)
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configitem('remotefilelog', 'data.gencountlimit', default=2),
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configitem('remotefilelog', 'data.generations',
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default=['1GB', '100MB', '1MB'])
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configitem('remotefilelog', 'data.maxrepackpacks', default=50)
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configitem('remotefilelog', 'data.repackmaxpacksize', default='4GB')
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configitem('remotefilelog', 'data.repacksizelimit', default='100MB')
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configitem('remotefilelog', 'history.gencountlimit', default=2),
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configitem('remotefilelog', 'history.generations', default=['100MB'])
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configitem('remotefilelog', 'history.maxrepackpacks', default=50)
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configitem('remotefilelog', 'history.repackmaxpacksize', default='400MB')
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configitem('remotefilelog', 'history.repacksizelimit', default='100MB')
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# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
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# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
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# be specifying the version(s) of Mercurial they are tested with, or
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# leave the attribute unspecified.
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testedwith = 'ships-with-hg-core'
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repoclass = localrepo.localrepository
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repoclass._basesupported.add(constants.SHALLOWREPO_REQUIREMENT)
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isenabled = shallowutil.isenabled
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def uisetup(ui):
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"""Wraps user facing Mercurial commands to swap them out with shallow
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versions.
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"""
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hg.wirepeersetupfuncs.append(fileserverclient.peersetup)
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entry = extensions.wrapcommand(commands.table, 'clone', cloneshallow)
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entry[1].append(('', 'shallow', None,
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_("create a shallow clone which uses remote file "
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"history")))
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extensions.wrapcommand(commands.table, 'debugindex',
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debugcommands.debugindex)
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extensions.wrapcommand(commands.table, 'debugindexdot',
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debugcommands.debugindexdot)
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extensions.wrapcommand(commands.table, 'log', log)
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extensions.wrapcommand(commands.table, 'pull', pull)
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# Prevent 'hg manifest --all'
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def _manifest(orig, ui, repo, *args, **opts):
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if (isenabled(repo) and opts.get('all')):
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raise error.Abort(_("--all is not supported in a shallow repo"))
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return orig(ui, repo, *args, **opts)
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extensions.wrapcommand(commands.table, "manifest", _manifest)
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# Wrap remotefilelog with lfs code
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def _lfsloaded(loaded=False):
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lfsmod = None
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try:
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lfsmod = extensions.find('lfs')
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except KeyError:
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pass
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if lfsmod:
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lfsmod.wrapfilelog(remotefilelog.remotefilelog)
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fileserverclient._lfsmod = lfsmod
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extensions.afterloaded('lfs', _lfsloaded)
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# debugdata needs remotefilelog.len to work
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extensions.wrapcommand(commands.table, 'debugdata', debugdatashallow)
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def cloneshallow(orig, ui, repo, *args, **opts):
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if opts.get('shallow'):
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repos = []
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def pull_shallow(orig, self, *args, **kwargs):
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if not isenabled(self):
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repos.append(self.unfiltered())
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# set up the client hooks so the post-clone update works
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setupclient(self.ui, self.unfiltered())
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# setupclient fixed the class on the repo itself
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# but we also need to fix it on the repoview
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if isinstance(self, repoview.repoview):
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self.__class__.__bases__ = (self.__class__.__bases__[0],
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self.unfiltered().__class__)
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self.requirements.add(constants.SHALLOWREPO_REQUIREMENT)
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self._writerequirements()
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# Since setupclient hadn't been called, exchange.pull was not
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# wrapped. So we need to manually invoke our version of it.
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return exchangepull(orig, self, *args, **kwargs)
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else:
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return orig(self, *args, **kwargs)
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extensions.wrapfunction(exchange, 'pull', pull_shallow)
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# Wrap the stream logic to add requirements and to pass include/exclude
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# patterns around.
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def setup_streamout(repo, remote):
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# Replace remote.stream_out with a version that sends file
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# patterns.
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def stream_out_shallow(orig):
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caps = remote.capabilities()
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if constants.NETWORK_CAP_LEGACY_SSH_GETFILES in caps:
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opts = {}
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if repo.includepattern:
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opts['includepattern'] = '\0'.join(repo.includepattern)
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if repo.excludepattern:
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opts['excludepattern'] = '\0'.join(repo.excludepattern)
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return remote._callstream('stream_out_shallow', **opts)
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else:
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return orig()
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extensions.wrapfunction(remote, 'stream_out', stream_out_shallow)
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def stream_wrap(orig, op):
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setup_streamout(op.repo, op.remote)
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return orig(op)
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extensions.wrapfunction(
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streamclone, 'maybeperformlegacystreamclone', stream_wrap)
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def canperformstreamclone(orig, pullop, bundle2=False):
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# remotefilelog is currently incompatible with the
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# bundle2 flavor of streamclones, so force us to use
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# v1 instead.
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if 'v2' in pullop.remotebundle2caps.get('stream', []):
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pullop.remotebundle2caps['stream'] = [
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c for c in pullop.remotebundle2caps['stream']
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if c != 'v2']
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if bundle2:
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return False, None
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supported, requirements = orig(pullop, bundle2=bundle2)
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if requirements is not None:
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requirements.add(constants.SHALLOWREPO_REQUIREMENT)
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return supported, requirements
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extensions.wrapfunction(
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streamclone, 'canperformstreamclone', canperformstreamclone)
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try:
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orig(ui, repo, *args, **opts)
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finally:
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if opts.get('shallow'):
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for r in repos:
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if util.safehasattr(r, 'fileservice'):
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r.fileservice.close()
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def debugdatashallow(orig, *args, **kwds):
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oldlen = remotefilelog.remotefilelog.__len__
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try:
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remotefilelog.remotefilelog.__len__ = lambda x: 1
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return orig(*args, **kwds)
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finally:
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remotefilelog.remotefilelog.__len__ = oldlen
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def reposetup(ui, repo):
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if not isinstance(repo, localrepo.localrepository):
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return
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# put here intentionally bc doesnt work in uisetup
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ui.setconfig('hooks', 'update.prefetch', wcpprefetch)
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ui.setconfig('hooks', 'commit.prefetch', wcpprefetch)
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isserverenabled = ui.configbool('remotefilelog', 'server')
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isshallowclient = isenabled(repo)
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if isserverenabled and isshallowclient:
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raise RuntimeError("Cannot be both a server and shallow client.")
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if isshallowclient:
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setupclient(ui, repo)
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if isserverenabled:
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remotefilelogserver.setupserver(ui, repo)
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def setupclient(ui, repo):
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if not isinstance(repo, localrepo.localrepository):
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return
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# Even clients get the server setup since they need to have the
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# wireprotocol endpoints registered.
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remotefilelogserver.onetimesetup(ui)
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onetimeclientsetup(ui)
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shallowrepo.wraprepo(repo)
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repo.store = shallowstore.wrapstore(repo.store)
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clientonetime = False
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def onetimeclientsetup(ui):
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global clientonetime
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if clientonetime:
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return
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clientonetime = True
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changegroup.cgpacker = shallowbundle.shallowcg1packer
|
|
|
|
|
|
extensions.wrapfunction(changegroup, '_addchangegroupfiles',
|
|
|
shallowbundle.addchangegroupfiles)
|
|
|
extensions.wrapfunction(
|
|
|
changegroup, 'makechangegroup', shallowbundle.makechangegroup)
|
|
|
|
|
|
def storewrapper(orig, requirements, path, vfstype):
|
|
|
s = orig(requirements, path, vfstype)
|
|
|
if constants.SHALLOWREPO_REQUIREMENT in requirements:
|
|
|
s = shallowstore.wrapstore(s)
|
|
|
|
|
|
return s
|
|
|
extensions.wrapfunction(localrepo, 'makestore', storewrapper)
|
|
|
|
|
|
extensions.wrapfunction(exchange, 'pull', exchangepull)
|
|
|
|
|
|
# prefetch files before update
|
|
|
def applyupdates(orig, repo, actions, wctx, mctx, overwrite, labels=None):
|
|
|
if isenabled(repo):
|
|
|
manifest = mctx.manifest()
|
|
|
files = []
|
|
|
for f, args, msg in actions['g']:
|
|
|
files.append((f, hex(manifest[f])))
|
|
|
# batch fetch the needed files from the server
|
|
|
repo.fileservice.prefetch(files)
|
|
|
return orig(repo, actions, wctx, mctx, overwrite, labels=labels)
|
|
|
extensions.wrapfunction(merge, 'applyupdates', applyupdates)
|
|
|
|
|
|
# Prefetch merge checkunknownfiles
|
|
|
def checkunknownfiles(orig, repo, wctx, mctx, force, actions,
|
|
|
*args, **kwargs):
|
|
|
if isenabled(repo):
|
|
|
files = []
|
|
|
sparsematch = repo.maybesparsematch(mctx.rev())
|
|
|
for f, (m, actionargs, msg) in actions.iteritems():
|
|
|
if sparsematch and not sparsematch(f):
|
|
|
continue
|
|
|
if m in ('c', 'dc', 'cm'):
|
|
|
files.append((f, hex(mctx.filenode(f))))
|
|
|
elif m == 'dg':
|
|
|
f2 = actionargs[0]
|
|
|
files.append((f2, hex(mctx.filenode(f2))))
|
|
|
# batch fetch the needed files from the server
|
|
|
repo.fileservice.prefetch(files)
|
|
|
return orig(repo, wctx, mctx, force, actions, *args, **kwargs)
|
|
|
extensions.wrapfunction(merge, '_checkunknownfiles', checkunknownfiles)
|
|
|
|
|
|
# Prefetch files before status attempts to look at their size and contents
|
|
|
def checklookup(orig, self, files):
|
|
|
repo = self._repo
|
|
|
if isenabled(repo):
|
|
|
prefetchfiles = []
|
|
|
for parent in self._parents:
|
|
|
for f in files:
|
|
|
if f in parent:
|
|
|
prefetchfiles.append((f, hex(parent.filenode(f))))
|
|
|
# batch fetch the needed files from the server
|
|
|
repo.fileservice.prefetch(prefetchfiles)
|
|
|
return orig(self, files)
|
|
|
extensions.wrapfunction(context.workingctx, '_checklookup', checklookup)
|
|
|
|
|
|
# Prefetch the logic that compares added and removed files for renames
|
|
|
def findrenames(orig, repo, matcher, added, removed, *args, **kwargs):
|
|
|
if isenabled(repo):
|
|
|
files = []
|
|
|
parentctx = repo['.']
|
|
|
for f in removed:
|
|
|
files.append((f, hex(parentctx.filenode(f))))
|
|
|
# batch fetch the needed files from the server
|
|
|
repo.fileservice.prefetch(files)
|
|
|
return orig(repo, matcher, added, removed, *args, **kwargs)
|
|
|
extensions.wrapfunction(scmutil, '_findrenames', findrenames)
|
|
|
|
|
|
# prefetch files before mergecopies check
|
|
|
def computenonoverlap(orig, repo, c1, c2, *args, **kwargs):
|
|
|
u1, u2 = orig(repo, c1, c2, *args, **kwargs)
|
|
|
if isenabled(repo):
|
|
|
m1 = c1.manifest()
|
|
|
m2 = c2.manifest()
|
|
|
files = []
|
|
|
|
|
|
sparsematch1 = repo.maybesparsematch(c1.rev())
|
|
|
if sparsematch1:
|
|
|
sparseu1 = []
|
|
|
for f in u1:
|
|
|
if sparsematch1(f):
|
|
|
files.append((f, hex(m1[f])))
|
|
|
sparseu1.append(f)
|
|
|
u1 = sparseu1
|
|
|
|
|
|
sparsematch2 = repo.maybesparsematch(c2.rev())
|
|
|
if sparsematch2:
|
|
|
sparseu2 = []
|
|
|
for f in u2:
|
|
|
if sparsematch2(f):
|
|
|
files.append((f, hex(m2[f])))
|
|
|
sparseu2.append(f)
|
|
|
u2 = sparseu2
|
|
|
|
|
|
# batch fetch the needed files from the server
|
|
|
repo.fileservice.prefetch(files)
|
|
|
return u1, u2
|
|
|
extensions.wrapfunction(copies, '_computenonoverlap', computenonoverlap)
|
|
|
|
|
|
# prefetch files before pathcopies check
|
|
|
def computeforwardmissing(orig, a, b, match=None):
|
|
|
missing = list(orig(a, b, match=match))
|
|
|
repo = a._repo
|
|
|
if isenabled(repo):
|
|
|
mb = b.manifest()
|
|
|
|
|
|
files = []
|
|
|
sparsematch = repo.maybesparsematch(b.rev())
|
|
|
if sparsematch:
|
|
|
sparsemissing = []
|
|
|
for f in missing:
|
|
|
if sparsematch(f):
|
|
|
files.append((f, hex(mb[f])))
|
|
|
sparsemissing.append(f)
|
|
|
missing = sparsemissing
|
|
|
|
|
|
# batch fetch the needed files from the server
|
|
|
repo.fileservice.prefetch(files)
|
|
|
return missing
|
|
|
extensions.wrapfunction(copies, '_computeforwardmissing',
|
|
|
computeforwardmissing)
|
|
|
|
|
|
# close cache miss server connection after the command has finished
|
|
|
def runcommand(orig, lui, repo, *args, **kwargs):
|
|
|
fileservice = None
|
|
|
# repo can be None when running in chg:
|
|
|
# - at startup, reposetup was called because serve is not norepo
|
|
|
# - a norepo command like "help" is called
|
|
|
if repo and isenabled(repo):
|
|
|
fileservice = repo.fileservice
|
|
|
try:
|
|
|
return orig(lui, repo, *args, **kwargs)
|
|
|
finally:
|
|
|
if fileservice:
|
|
|
fileservice.close()
|
|
|
extensions.wrapfunction(dispatch, 'runcommand', runcommand)
|
|
|
|
|
|
# disappointing hacks below
|
|
|
templatekw.getrenamedfn = getrenamedfn
|
|
|
extensions.wrapfunction(revset, 'filelog', filelogrevset)
|
|
|
revset.symbols['filelog'] = revset.filelog
|
|
|
extensions.wrapfunction(cmdutil, 'walkfilerevs', walkfilerevs)
|
|
|
|
|
|
# prevent strip from stripping remotefilelogs
|
|
|
def _collectbrokencsets(orig, repo, files, striprev):
|
|
|
if isenabled(repo):
|
|
|
files = list([f for f in files if not repo.shallowmatch(f)])
|
|
|
return orig(repo, files, striprev)
|
|
|
extensions.wrapfunction(repair, '_collectbrokencsets', _collectbrokencsets)
|
|
|
|
|
|
# Don't commit filelogs until we know the commit hash, since the hash
|
|
|
# is present in the filelog blob.
|
|
|
# This violates Mercurial's filelog->manifest->changelog write order,
|
|
|
# but is generally fine for client repos.
|
|
|
pendingfilecommits = []
|
|
|
def addrawrevision(orig, self, rawtext, transaction, link, p1, p2, node,
|
|
|
flags, cachedelta=None, _metatuple=None):
|
|
|
if isinstance(link, int):
|
|
|
pendingfilecommits.append(
|
|
|
(self, rawtext, transaction, link, p1, p2, node, flags,
|
|
|
cachedelta, _metatuple))
|
|
|
return node
|
|
|
else:
|
|
|
return orig(self, rawtext, transaction, link, p1, p2, node, flags,
|
|
|
cachedelta, _metatuple=_metatuple)
|
|
|
extensions.wrapfunction(
|
|
|
remotefilelog.remotefilelog, 'addrawrevision', addrawrevision)
|
|
|
|
|
|
def changelogadd(orig, self, *args):
|
|
|
oldlen = len(self)
|
|
|
node = orig(self, *args)
|
|
|
newlen = len(self)
|
|
|
if oldlen != newlen:
|
|
|
for oldargs in pendingfilecommits:
|
|
|
log, rt, tr, link, p1, p2, n, fl, c, m = oldargs
|
|
|
linknode = self.node(link)
|
|
|
if linknode == node:
|
|
|
log.addrawrevision(rt, tr, linknode, p1, p2, n, fl, c, m)
|
|
|
else:
|
|
|
raise error.ProgrammingError(
|
|
|
'pending multiple integer revisions are not supported')
|
|
|
else:
|
|
|
# "link" is actually wrong here (it is set to len(changelog))
|
|
|
# if changelog remains unchanged, skip writing file revisions
|
|
|
# but still do a sanity check about pending multiple revisions
|
|
|
if len(set(x[3] for x in pendingfilecommits)) > 1:
|
|
|
raise error.ProgrammingError(
|
|
|
'pending multiple integer revisions are not supported')
|
|
|
del pendingfilecommits[:]
|
|
|
return node
|
|
|
extensions.wrapfunction(changelog.changelog, 'add', changelogadd)
|
|
|
|
|
|
# changectx wrappers
|
|
|
def filectx(orig, self, path, fileid=None, filelog=None):
|
|
|
if fileid is None:
|
|
|
fileid = self.filenode(path)
|
|
|
if (isenabled(self._repo) and self._repo.shallowmatch(path)):
|
|
|
return remotefilectx.remotefilectx(self._repo, path,
|
|
|
fileid=fileid, changectx=self, filelog=filelog)
|
|
|
return orig(self, path, fileid=fileid, filelog=filelog)
|
|
|
extensions.wrapfunction(context.changectx, 'filectx', filectx)
|
|
|
|
|
|
def workingfilectx(orig, self, path, filelog=None):
|
|
|
if (isenabled(self._repo) and self._repo.shallowmatch(path)):
|
|
|
return remotefilectx.remoteworkingfilectx(self._repo,
|
|
|
path, workingctx=self, filelog=filelog)
|
|
|
return orig(self, path, filelog=filelog)
|
|
|
extensions.wrapfunction(context.workingctx, 'filectx', workingfilectx)
|
|
|
|
|
|
# prefetch required revisions before a diff
|
|
|
def trydiff(orig, repo, revs, ctx1, ctx2, modified, added, removed,
|
|
|
copy, getfilectx, *args, **kwargs):
|
|
|
if isenabled(repo):
|
|
|
prefetch = []
|
|
|
mf1 = ctx1.manifest()
|
|
|
for fname in modified + added + removed:
|
|
|
if fname in mf1:
|
|
|
fnode = getfilectx(fname, ctx1).filenode()
|
|
|
# fnode can be None if it's a edited working ctx file
|
|
|
if fnode:
|
|
|
prefetch.append((fname, hex(fnode)))
|
|
|
if fname not in removed:
|
|
|
fnode = getfilectx(fname, ctx2).filenode()
|
|
|
if fnode:
|
|
|
prefetch.append((fname, hex(fnode)))
|
|
|
|
|
|
repo.fileservice.prefetch(prefetch)
|
|
|
|
|
|
return orig(repo, revs, ctx1, ctx2, modified, added, removed,
|
|
|
copy, getfilectx, *args, **kwargs)
|
|
|
extensions.wrapfunction(patch, 'trydiff', trydiff)
|
|
|
|
|
|
# Prevent verify from processing files
|
|
|
# a stub for mercurial.hg.verify()
|
|
|
def _verify(orig, repo):
|
|
|
lock = repo.lock()
|
|
|
try:
|
|
|
return shallowverifier.shallowverifier(repo).verify()
|
|
|
finally:
|
|
|
lock.release()
|
|
|
|
|
|
extensions.wrapfunction(hg, 'verify', _verify)
|
|
|
|
|
|
scmutil.fileprefetchhooks.add('remotefilelog', _fileprefetchhook)
|
|
|
|
|
|
def getrenamedfn(repo, endrev=None):
|
|
|
rcache = {}
|
|
|
|
|
|
def getrenamed(fn, rev):
|
|
|
'''looks up all renames for a file (up to endrev) the first
|
|
|
time the file is given. It indexes on the changerev and only
|
|
|
parses the manifest if linkrev != changerev.
|
|
|
Returns rename info for fn at changerev rev.'''
|
|
|
if rev in rcache.setdefault(fn, {}):
|
|
|
return rcache[fn][rev]
|
|
|
|
|
|
try:
|
|
|
fctx = repo[rev].filectx(fn)
|
|
|
for ancestor in fctx.ancestors():
|
|
|
if ancestor.path() == fn:
|
|
|
renamed = ancestor.renamed()
|
|
|
rcache[fn][ancestor.rev()] = renamed
|
|
|
|
|
|
return fctx.renamed()
|
|
|
except error.LookupError:
|
|
|
return None
|
|
|
|
|
|
return getrenamed
|
|
|
|
|
|
def walkfilerevs(orig, repo, match, follow, revs, fncache):
|
|
|
if not isenabled(repo):
|
|
|
return orig(repo, match, follow, revs, fncache)
|
|
|
|
|
|
# remotefilelog's can't be walked in rev order, so throw.
|
|
|
# The caller will see the exception and walk the commit tree instead.
|
|
|
if not follow:
|
|
|
raise cmdutil.FileWalkError("Cannot walk via filelog")
|
|
|
|
|
|
wanted = set()
|
|
|
minrev, maxrev = min(revs), max(revs)
|
|
|
|
|
|
pctx = repo['.']
|
|
|
for filename in match.files():
|
|
|
if filename not in pctx:
|
|
|
raise error.Abort(_('cannot follow file not in parent '
|
|
|
'revision: "%s"') % filename)
|
|
|
fctx = pctx[filename]
|
|
|
|
|
|
linkrev = fctx.linkrev()
|
|
|
if linkrev >= minrev and linkrev <= maxrev:
|
|
|
fncache.setdefault(linkrev, []).append(filename)
|
|
|
wanted.add(linkrev)
|
|
|
|
|
|
for ancestor in fctx.ancestors():
|
|
|
linkrev = ancestor.linkrev()
|
|
|
if linkrev >= minrev and linkrev <= maxrev:
|
|
|
fncache.setdefault(linkrev, []).append(ancestor.path())
|
|
|
wanted.add(linkrev)
|
|
|
|
|
|
return wanted
|
|
|
|
|
|
def filelogrevset(orig, repo, subset, x):
|
|
|
"""``filelog(pattern)``
|
|
|
Changesets connected to the specified filelog.
|
|
|
|
|
|
For performance reasons, ``filelog()`` does not show every changeset
|
|
|
that affects the requested file(s). See :hg:`help log` for details. For
|
|
|
a slower, more accurate result, use ``file()``.
|
|
|
"""
|
|
|
|
|
|
if not isenabled(repo):
|
|
|
return orig(repo, subset, x)
|
|
|
|
|
|
# i18n: "filelog" is a keyword
|
|
|
pat = revset.getstring(x, _("filelog requires a pattern"))
|
|
|
m = match.match(repo.root, repo.getcwd(), [pat], default='relpath',
|
|
|
ctx=repo[None])
|
|
|
s = set()
|
|
|
|
|
|
if not match.patkind(pat):
|
|
|
# slow
|
|
|
for r in subset:
|
|
|
ctx = repo[r]
|
|
|
cfiles = ctx.files()
|
|
|
for f in m.files():
|
|
|
if f in cfiles:
|
|
|
s.add(ctx.rev())
|
|
|
break
|
|
|
else:
|
|
|
# partial
|
|
|
files = (f for f in repo[None] if m(f))
|
|
|
for f in files:
|
|
|
fctx = repo[None].filectx(f)
|
|
|
s.add(fctx.linkrev())
|
|
|
for actx in fctx.ancestors():
|
|
|
s.add(actx.linkrev())
|
|
|
|
|
|
return smartset.baseset([r for r in subset if r in s])
|
|
|
|
|
|
@command('gc', [], _('hg gc [REPO...]'), norepo=True)
|
|
|
def gc(ui, *args, **opts):
|
|
|
'''garbage collect the client and server filelog caches
|
|
|
'''
|
|
|
cachepaths = set()
|
|
|
|
|
|
# get the system client cache
|
|
|
systemcache = shallowutil.getcachepath(ui, allowempty=True)
|
|
|
if systemcache:
|
|
|
cachepaths.add(systemcache)
|
|
|
|
|
|
# get repo client and server cache
|
|
|
repopaths = []
|
|
|
pwd = ui.environ.get('PWD')
|
|
|
if pwd:
|
|
|
repopaths.append(pwd)
|
|
|
|
|
|
repopaths.extend(args)
|
|
|
repos = []
|
|
|
for repopath in repopaths:
|
|
|
try:
|
|
|
repo = hg.peer(ui, {}, repopath)
|
|
|
repos.append(repo)
|
|
|
|
|
|
repocache = shallowutil.getcachepath(repo.ui, allowempty=True)
|
|
|
if repocache:
|
|
|
cachepaths.add(repocache)
|
|
|
except error.RepoError:
|
|
|
pass
|
|
|
|
|
|
# gc client cache
|
|
|
for cachepath in cachepaths:
|
|
|
gcclient(ui, cachepath)
|
|
|
|
|
|
# gc server cache
|
|
|
for repo in repos:
|
|
|
remotefilelogserver.gcserver(ui, repo._repo)
|
|
|
|
|
|
def gcclient(ui, cachepath):
|
|
|
# get list of repos that use this cache
|
|
|
repospath = os.path.join(cachepath, 'repos')
|
|
|
if not os.path.exists(repospath):
|
|
|
ui.warn(_("no known cache at %s\n") % cachepath)
|
|
|
return
|
|
|
|
|
|
reposfile = open(repospath, 'r')
|
|
|
repos = set([r[:-1] for r in reposfile.readlines()])
|
|
|
reposfile.close()
|
|
|
|
|
|
# build list of useful files
|
|
|
validrepos = []
|
|
|
keepkeys = set()
|
|
|
|
|
|
_analyzing = _("analyzing repositories")
|
|
|
|
|
|
sharedcache = None
|
|
|
filesrepacked = False
|
|
|
|
|
|
count = 0
|
|
|
for path in repos:
|
|
|
ui.progress(_analyzing, count, unit="repos", total=len(repos))
|
|
|
count += 1
|
|
|
try:
|
|
|
path = ui.expandpath(os.path.normpath(path))
|
|
|
except TypeError as e:
|
|
|
ui.warn(_("warning: malformed path: %r:%s\n") % (path, e))
|
|
|
traceback.print_exc()
|
|
|
continue
|
|
|
try:
|
|
|
peer = hg.peer(ui, {}, path)
|
|
|
repo = peer._repo
|
|
|
except error.RepoError:
|
|
|
continue
|
|
|
|
|
|
validrepos.append(path)
|
|
|
|
|
|
# Protect against any repo or config changes that have happened since
|
|
|
# this repo was added to the repos file. We'd rather this loop succeed
|
|
|
# and too much be deleted, than the loop fail and nothing gets deleted.
|
|
|
if not isenabled(repo):
|
|
|
continue
|
|
|
|
|
|
if not util.safehasattr(repo, 'name'):
|
|
|
ui.warn(_("repo %s is a misconfigured remotefilelog repo\n") % path)
|
|
|
continue
|
|
|
|
|
|
# If garbage collection on repack and repack on hg gc are enabled
|
|
|
# then loose files are repacked and garbage collected.
|
|
|
# Otherwise regular garbage collection is performed.
|
|
|
repackonhggc = repo.ui.configbool('remotefilelog', 'repackonhggc')
|
|
|
gcrepack = repo.ui.configbool('remotefilelog', 'gcrepack')
|
|
|
if repackonhggc and gcrepack:
|
|
|
try:
|
|
|
repackmod.incrementalrepack(repo)
|
|
|
filesrepacked = True
|
|
|
continue
|
|
|
except (IOError, repackmod.RepackAlreadyRunning):
|
|
|
# If repack cannot be performed due to not enough disk space
|
|
|
# continue doing garbage collection of loose files w/o repack
|
|
|
pass
|
|
|
|
|
|
reponame = repo.name
|
|
|
if not sharedcache:
|
|
|
sharedcache = repo.sharedstore
|
|
|
|
|
|
# Compute a keepset which is not garbage collected
|
|
|
def keyfn(fname, fnode):
|
|
|
return fileserverclient.getcachekey(reponame, fname, hex(fnode))
|
|
|
keepkeys = repackmod.keepset(repo, keyfn=keyfn, lastkeepkeys=keepkeys)
|
|
|
|
|
|
ui.progress(_analyzing, None)
|
|
|
|
|
|
# write list of valid repos back
|
|
|
oldumask = os.umask(0o002)
|
|
|
try:
|
|
|
reposfile = open(repospath, 'w')
|
|
|
reposfile.writelines([("%s\n" % r) for r in validrepos])
|
|
|
reposfile.close()
|
|
|
finally:
|
|
|
os.umask(oldumask)
|
|
|
|
|
|
# prune cache
|
|
|
if sharedcache is not None:
|
|
|
sharedcache.gc(keepkeys)
|
|
|
elif not filesrepacked:
|
|
|
ui.warn(_("warning: no valid repos in repofile\n"))
|
|
|
|
|
|
def log(orig, ui, repo, *pats, **opts):
|
|
|
if not isenabled(repo):
|
|
|
return orig(ui, repo, *pats, **opts)
|
|
|
|
|
|
follow = opts.get('follow')
|
|
|
revs = opts.get('rev')
|
|
|
if pats:
|
|
|
# Force slowpath for non-follow patterns and follows that start from
|
|
|
# non-working-copy-parent revs.
|
|
|
if not follow or revs:
|
|
|
# This forces the slowpath
|
|
|
opts['removed'] = True
|
|
|
|
|
|
# If this is a non-follow log without any revs specified, recommend that
|
|
|
# the user add -f to speed it up.
|
|
|
if not follow and not revs:
|
|
|
match, pats = scmutil.matchandpats(repo['.'], pats, opts)
|
|
|
isfile = not match.anypats()
|
|
|
if isfile:
|
|
|
for file in match.files():
|
|
|
if not os.path.isfile(repo.wjoin(file)):
|
|
|
isfile = False
|
|
|
break
|
|
|
|
|
|
if isfile:
|
|
|
ui.warn(_("warning: file log can be slow on large repos - " +
|
|
|
"use -f to speed it up\n"))
|
|
|
|
|
|
return orig(ui, repo, *pats, **opts)
|
|
|
|
|
|
def revdatelimit(ui, revset):
|
|
|
"""Update revset so that only changesets no older than 'prefetchdays' days
|
|
|
are included. The default value is set to 14 days. If 'prefetchdays' is set
|
|
|
to zero or negative value then date restriction is not applied.
|
|
|
"""
|
|
|
days = ui.configint('remotefilelog', 'prefetchdays')
|
|
|
if days > 0:
|
|
|
revset = '(%s) & date(-%s)' % (revset, days)
|
|
|
return revset
|
|
|
|
|
|
def readytofetch(repo):
|
|
|
"""Check that enough time has passed since the last background prefetch.
|
|
|
This only relates to prefetches after operations that change the working
|
|
|
copy parent. Default delay between background prefetches is 2 minutes.
|
|
|
"""
|
|
|
timeout = repo.ui.configint('remotefilelog', 'prefetchdelay')
|
|
|
fname = repo.vfs.join('lastprefetch')
|
|
|
|
|
|
ready = False
|
|
|
with open(fname, 'a'):
|
|
|
# the with construct above is used to avoid race conditions
|
|
|
modtime = os.path.getmtime(fname)
|
|
|
if (time.time() - modtime) > timeout:
|
|
|
os.utime(fname, None)
|
|
|
ready = True
|
|
|
|
|
|
return ready
|
|
|
|
|
|
def wcpprefetch(ui, repo, **kwargs):
|
|
|
"""Prefetches in background revisions specified by bgprefetchrevs revset.
|
|
|
Does background repack if backgroundrepack flag is set in config.
|
|
|
"""
|
|
|
shallow = isenabled(repo)
|
|
|
bgprefetchrevs = ui.config('remotefilelog', 'bgprefetchrevs')
|
|
|
isready = readytofetch(repo)
|
|
|
|
|
|
if not (shallow and bgprefetchrevs and isready):
|
|
|
return
|
|
|
|
|
|
bgrepack = repo.ui.configbool('remotefilelog', 'backgroundrepack')
|
|
|
# update a revset with a date limit
|
|
|
bgprefetchrevs = revdatelimit(ui, bgprefetchrevs)
|
|
|
|
|
|
def anon():
|
|
|
if util.safehasattr(repo, 'ranprefetch') and repo.ranprefetch:
|
|
|
return
|
|
|
repo.ranprefetch = True
|
|
|
repo.backgroundprefetch(bgprefetchrevs, repack=bgrepack)
|
|
|
|
|
|
repo._afterlock(anon)
|
|
|
|
|
|
def pull(orig, ui, repo, *pats, **opts):
|
|
|
result = orig(ui, repo, *pats, **opts)
|
|
|
|
|
|
if isenabled(repo):
|
|
|
# prefetch if it's configured
|
|
|
prefetchrevset = ui.config('remotefilelog', 'pullprefetch')
|
|
|
bgrepack = repo.ui.configbool('remotefilelog', 'backgroundrepack')
|
|
|
bgprefetch = repo.ui.configbool('remotefilelog', 'backgroundprefetch')
|
|
|
|
|
|
if prefetchrevset:
|
|
|
ui.status(_("prefetching file contents\n"))
|
|
|
revs = scmutil.revrange(repo, [prefetchrevset])
|
|
|
base = repo['.'].rev()
|
|
|
if bgprefetch:
|
|
|
repo.backgroundprefetch(prefetchrevset, repack=bgrepack)
|
|
|
else:
|
|
|
repo.prefetch(revs, base=base)
|
|
|
if bgrepack:
|
|
|
repackmod.backgroundrepack(repo, incremental=True)
|
|
|
elif bgrepack:
|
|
|
repackmod.backgroundrepack(repo, incremental=True)
|
|
|
|
|
|
return result
|
|
|
|
|
|
def exchangepull(orig, repo, remote, *args, **kwargs):
|
|
|
# Hook into the callstream/getbundle to insert bundle capabilities
|
|
|
# during a pull.
|
|
|
def localgetbundle(orig, source, heads=None, common=None, bundlecaps=None,
|
|
|
**kwargs):
|
|
|
if not bundlecaps:
|
|
|
bundlecaps = set()
|
|
|
bundlecaps.add(constants.BUNDLE2_CAPABLITY)
|
|
|
return orig(source, heads=heads, common=common, bundlecaps=bundlecaps,
|
|
|
**kwargs)
|
|
|
|
|
|
if util.safehasattr(remote, '_callstream'):
|
|
|
remote._localrepo = repo
|
|
|
elif util.safehasattr(remote, 'getbundle'):
|
|
|
extensions.wrapfunction(remote, 'getbundle', localgetbundle)
|
|
|
|
|
|
return orig(repo, remote, *args, **kwargs)
|
|
|
|
|
|
def _fileprefetchhook(repo, revs, match):
|
|
|
if isenabled(repo):
|
|
|
allfiles = []
|
|
|
for rev in revs:
|
|
|
if rev == nodemod.wdirrev or rev is None:
|
|
|
continue
|
|
|
ctx = repo[rev]
|
|
|
mf = ctx.manifest()
|
|
|
sparsematch = repo.maybesparsematch(ctx.rev())
|
|
|
for path in ctx.walk(match):
|
|
|
if path.endswith('/'):
|
|
|
# Tree manifest that's being excluded as part of narrow
|
|
|
continue
|
|
|
if (not sparsematch or sparsematch(path)) and path in mf:
|
|
|
allfiles.append((path, hex(mf[path])))
|
|
|
repo.fileservice.prefetch(allfiles)
|
|
|
|
|
|
@command('debugremotefilelog', [
|
|
|
('d', 'decompress', None, _('decompress the filelog first')),
|
|
|
], _('hg debugremotefilelog <path>'), norepo=True)
|
|
|
def debugremotefilelog(ui, path, **opts):
|
|
|
return debugcommands.debugremotefilelog(ui, path, **opts)
|
|
|
|
|
|
@command('verifyremotefilelog', [
|
|
|
('d', 'decompress', None, _('decompress the filelogs first')),
|
|
|
], _('hg verifyremotefilelogs <directory>'), norepo=True)
|
|
|
def verifyremotefilelog(ui, path, **opts):
|
|
|
return debugcommands.verifyremotefilelog(ui, path, **opts)
|
|
|
|
|
|
@command('debugdatapack', [
|
|
|
('', 'long', None, _('print the long hashes')),
|
|
|
('', 'node', '', _('dump the contents of node'), 'NODE'),
|
|
|
], _('hg debugdatapack <paths>'), norepo=True)
|
|
|
def debugdatapack(ui, *paths, **opts):
|
|
|
return debugcommands.debugdatapack(ui, *paths, **opts)
|
|
|
|
|
|
@command('debughistorypack', [
|
|
|
], _('hg debughistorypack <path>'), norepo=True)
|
|
|
def debughistorypack(ui, path, **opts):
|
|
|
return debugcommands.debughistorypack(ui, path)
|
|
|
|
|
|
@command('debugkeepset', [
|
|
|
], _('hg debugkeepset'))
|
|
|
def debugkeepset(ui, repo, **opts):
|
|
|
# The command is used to measure keepset computation time
|
|
|
def keyfn(fname, fnode):
|
|
|
return fileserverclient.getcachekey(repo.name, fname, hex(fnode))
|
|
|
repackmod.keepset(repo, keyfn)
|
|
|
return
|
|
|
|
|
|
@command('debugwaitonrepack', [
|
|
|
], _('hg debugwaitonrepack'))
|
|
|
def debugwaitonrepack(ui, repo, **opts):
|
|
|
return debugcommands.debugwaitonrepack(repo)
|
|
|
|
|
|
@command('debugwaitonprefetch', [
|
|
|
], _('hg debugwaitonprefetch'))
|
|
|
def debugwaitonprefetch(ui, repo, **opts):
|
|
|
return debugcommands.debugwaitonprefetch(repo)
|
|
|
|
|
|
def resolveprefetchopts(ui, opts):
|
|
|
if not opts.get('rev'):
|
|
|
revset = ['.', 'draft()']
|
|
|
|
|
|
prefetchrevset = ui.config('remotefilelog', 'pullprefetch', None)
|
|
|
if prefetchrevset:
|
|
|
revset.append('(%s)' % prefetchrevset)
|
|
|
bgprefetchrevs = ui.config('remotefilelog', 'bgprefetchrevs', None)
|
|
|
if bgprefetchrevs:
|
|
|
revset.append('(%s)' % bgprefetchrevs)
|
|
|
revset = '+'.join(revset)
|
|
|
|
|
|
# update a revset with a date limit
|
|
|
revset = revdatelimit(ui, revset)
|
|
|
|
|
|
opts['rev'] = [revset]
|
|
|
|
|
|
if not opts.get('base'):
|
|
|
opts['base'] = None
|
|
|
|
|
|
return opts
|
|
|
|
|
|
@command('prefetch', [
|
|
|
('r', 'rev', [], _('prefetch the specified revisions'), _('REV')),
|
|
|
('', 'repack', False, _('run repack after prefetch')),
|
|
|
('b', 'base', '', _("rev that is assumed to already be local")),
|
|
|
] + commands.walkopts, _('hg prefetch [OPTIONS] [FILE...]'))
|
|
|
def prefetch(ui, repo, *pats, **opts):
|
|
|
"""prefetch file revisions from the server
|
|
|
|
|
|
Prefetchs file revisions for the specified revs and stores them in the
|
|
|
local remotefilelog cache. If no rev is specified, the default rev is
|
|
|
used which is the union of dot, draft, pullprefetch and bgprefetchrev.
|
|
|
File names or patterns can be used to limit which files are downloaded.
|
|
|
|
|
|
Return 0 on success.
|
|
|
"""
|
|
|
if not isenabled(repo):
|
|
|
raise error.Abort(_("repo is not shallow"))
|
|
|
|
|
|
opts = resolveprefetchopts(ui, opts)
|
|
|
revs = scmutil.revrange(repo, opts.get('rev'))
|
|
|
repo.prefetch(revs, opts.get('base'), pats, opts)
|
|
|
|
|
|
# Run repack in background
|
|
|
if opts.get('repack'):
|
|
|
repackmod.backgroundrepack(repo, incremental=True)
|
|
|
|
|
|
@command('repack', [
|
|
|
('', 'background', None, _('run in a background process'), None),
|
|
|
('', 'incremental', None, _('do an incremental repack'), None),
|
|
|
('', 'packsonly', None, _('only repack packs (skip loose objects)'), None),
|
|
|
], _('hg repack [OPTIONS]'))
|
|
|
def repack_(ui, repo, *pats, **opts):
|
|
|
if opts.get('background'):
|
|
|
repackmod.backgroundrepack(repo, incremental=opts.get('incremental'),
|
|
|
packsonly=opts.get('packsonly', False))
|
|
|
return
|
|
|
|
|
|
options = {'packsonly': opts.get('packsonly')}
|
|
|
|
|
|
try:
|
|
|
if opts.get('incremental'):
|
|
|
repackmod.incrementalrepack(repo, options=options)
|
|
|
else:
|
|
|
repackmod.fullrepack(repo, options=options)
|
|
|
except repackmod.RepackAlreadyRunning as ex:
|
|
|
# Don't propogate the exception if the repack is already in
|
|
|
# progress, since we want the command to exit 0.
|
|
|
repo.ui.warn('%s\n' % ex)
|
|
|
|
