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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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from mercurial.i18n import _
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from mercurial.node import (
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nullid,
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short,
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)
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from mercurial import (
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encoding,
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error,
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mdiff,
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policy,
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pycompat,
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scmutil,
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util,
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vfs,
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)
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from mercurial.utils import procutil
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from . import (
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constants,
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contentstore,
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datapack,
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extutil,
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historypack,
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metadatastore,
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shallowutil,
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)
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osutil = policy.importmod(r'osutil')
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class RepackAlreadyRunning(error.Abort):
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pass
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def backgroundrepack(repo, incremental=True, packsonly=False):
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cmd = [procutil.hgexecutable(), '-R', repo.origroot, 'repack']
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msg = _("(running background repack)\n")
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if incremental:
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cmd.append('--incremental')
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msg = _("(running background incremental repack)\n")
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if packsonly:
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cmd.append('--packsonly')
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repo.ui.warn(msg)
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procutil.runbgcommand(cmd, encoding.environ)
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def fullrepack(repo, options=None):
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"""If ``packsonly`` is True, stores creating only loose objects are skipped.
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"""
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if util.safehasattr(repo, 'shareddatastores'):
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datasource = contentstore.unioncontentstore(
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*repo.shareddatastores)
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historysource = metadatastore.unionmetadatastore(
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*repo.sharedhistorystores,
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allowincomplete=True)
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packpath = shallowutil.getcachepackpath(
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repo,
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constants.FILEPACK_CATEGORY)
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_runrepack(repo, datasource, historysource, packpath,
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constants.FILEPACK_CATEGORY, options=options)
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if util.safehasattr(repo.manifestlog, 'datastore'):
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localdata, shareddata = _getmanifeststores(repo)
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lpackpath, ldstores, lhstores = localdata
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spackpath, sdstores, shstores = shareddata
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# Repack the shared manifest store
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datasource = contentstore.unioncontentstore(*sdstores)
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historysource = metadatastore.unionmetadatastore(
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*shstores,
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allowincomplete=True)
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_runrepack(repo, datasource, historysource, spackpath,
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constants.TREEPACK_CATEGORY, options=options)
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# Repack the local manifest store
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datasource = contentstore.unioncontentstore(
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*ldstores,
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allowincomplete=True)
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historysource = metadatastore.unionmetadatastore(
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*lhstores,
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allowincomplete=True)
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_runrepack(repo, datasource, historysource, lpackpath,
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constants.TREEPACK_CATEGORY, options=options)
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def incrementalrepack(repo, options=None):
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"""This repacks the repo by looking at the distribution of pack files in the
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repo and performing the most minimal repack to keep the repo in good shape.
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"""
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if util.safehasattr(repo, 'shareddatastores'):
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packpath = shallowutil.getcachepackpath(
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repo,
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constants.FILEPACK_CATEGORY)
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_incrementalrepack(repo,
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repo.shareddatastores,
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repo.sharedhistorystores,
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packpath,
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constants.FILEPACK_CATEGORY,
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options=options)
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if util.safehasattr(repo.manifestlog, 'datastore'):
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localdata, shareddata = _getmanifeststores(repo)
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lpackpath, ldstores, lhstores = localdata
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spackpath, sdstores, shstores = shareddata
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# Repack the shared manifest store
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_incrementalrepack(repo,
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sdstores,
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shstores,
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spackpath,
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constants.TREEPACK_CATEGORY,
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options=options)
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# Repack the local manifest store
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_incrementalrepack(repo,
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ldstores,
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lhstores,
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lpackpath,
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constants.TREEPACK_CATEGORY,
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allowincompletedata=True,
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options=options)
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def _getmanifeststores(repo):
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shareddatastores = repo.manifestlog.shareddatastores
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localdatastores = repo.manifestlog.localdatastores
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sharedhistorystores = repo.manifestlog.sharedhistorystores
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localhistorystores = repo.manifestlog.localhistorystores
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sharedpackpath = shallowutil.getcachepackpath(repo,
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constants.TREEPACK_CATEGORY)
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localpackpath = shallowutil.getlocalpackpath(repo.svfs.vfs.base,
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constants.TREEPACK_CATEGORY)
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return ((localpackpath, localdatastores, localhistorystores),
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(sharedpackpath, shareddatastores, sharedhistorystores))
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def _topacks(packpath, files, constructor):
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paths = list(os.path.join(packpath, p) for p in files)
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packs = list(constructor(p) for p in paths)
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return packs
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def _deletebigpacks(repo, folder, files):
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"""Deletes packfiles that are bigger than ``packs.maxpacksize``.
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Returns ``files` with the removed files omitted."""
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maxsize = repo.ui.configbytes("packs", "maxpacksize")
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if maxsize <= 0:
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return files
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# This only considers datapacks today, but we could broaden it to include
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# historypacks.
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VALIDEXTS = [".datapack", ".dataidx"]
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# Either an oversize index or datapack will trigger cleanup of the whole
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# pack:
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oversized = set([os.path.splitext(path)[0] for path, ftype, stat in files
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if (stat.st_size > maxsize and (os.path.splitext(path)[1]
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in VALIDEXTS))])
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for rootfname in oversized:
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rootpath = os.path.join(folder, rootfname)
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for ext in VALIDEXTS:
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path = rootpath + ext
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repo.ui.debug('removing oversize packfile %s (%s)\n' %
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(path, util.bytecount(os.stat(path).st_size)))
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os.unlink(path)
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return [row for row in files if os.path.basename(row[0]) not in oversized]
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def _incrementalrepack(repo, datastore, historystore, packpath, category,
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allowincompletedata=False, options=None):
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shallowutil.mkstickygroupdir(repo.ui, packpath)
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files = osutil.listdir(packpath, stat=True)
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files = _deletebigpacks(repo, packpath, files)
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datapacks = _topacks(packpath,
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_computeincrementaldatapack(repo.ui, files),
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datapack.datapack)
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datapacks.extend(s for s in datastore
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if not isinstance(s, datapack.datapackstore))
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historypacks = _topacks(packpath,
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_computeincrementalhistorypack(repo.ui, files),
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historypack.historypack)
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historypacks.extend(s for s in historystore
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if not isinstance(s, historypack.historypackstore))
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# ``allhistory{files,packs}`` contains all known history packs, even ones we
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# don't plan to repack. They are used during the datapack repack to ensure
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# good ordering of nodes.
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allhistoryfiles = _allpackfileswithsuffix(files, historypack.PACKSUFFIX,
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historypack.INDEXSUFFIX)
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allhistorypacks = _topacks(packpath,
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(f for f, mode, stat in allhistoryfiles),
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historypack.historypack)
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allhistorypacks.extend(s for s in historystore
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if not isinstance(s, historypack.historypackstore))
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_runrepack(repo,
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contentstore.unioncontentstore(
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*datapacks,
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allowincomplete=allowincompletedata),
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metadatastore.unionmetadatastore(
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*historypacks,
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allowincomplete=True),
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packpath, category,
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fullhistory=metadatastore.unionmetadatastore(
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*allhistorypacks,
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allowincomplete=True),
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options=options)
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def _computeincrementaldatapack(ui, files):
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opts = {
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'gencountlimit' : ui.configint(
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'remotefilelog', 'data.gencountlimit'),
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'generations' : ui.configlist(
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'remotefilelog', 'data.generations'),
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'maxrepackpacks' : ui.configint(
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'remotefilelog', 'data.maxrepackpacks'),
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'repackmaxpacksize' : ui.configbytes(
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'remotefilelog', 'data.repackmaxpacksize'),
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'repacksizelimit' : ui.configbytes(
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'remotefilelog', 'data.repacksizelimit'),
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}
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packfiles = _allpackfileswithsuffix(
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files, datapack.PACKSUFFIX, datapack.INDEXSUFFIX)
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return _computeincrementalpack(packfiles, opts)
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def _computeincrementalhistorypack(ui, files):
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opts = {
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'gencountlimit' : ui.configint(
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'remotefilelog', 'history.gencountlimit'),
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'generations' : ui.configlist(
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'remotefilelog', 'history.generations', ['100MB']),
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'maxrepackpacks' : ui.configint(
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'remotefilelog', 'history.maxrepackpacks'),
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'repackmaxpacksize' : ui.configbytes(
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'remotefilelog', 'history.repackmaxpacksize', '400MB'),
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'repacksizelimit' : ui.configbytes(
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'remotefilelog', 'history.repacksizelimit'),
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}
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packfiles = _allpackfileswithsuffix(
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files, historypack.PACKSUFFIX, historypack.INDEXSUFFIX)
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return _computeincrementalpack(packfiles, opts)
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def _allpackfileswithsuffix(files, packsuffix, indexsuffix):
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result = []
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fileset = set(fn for fn, mode, stat in files)
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for filename, mode, stat in files:
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if not filename.endswith(packsuffix):
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continue
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prefix = filename[:-len(packsuffix)]
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# Don't process a pack if it doesn't have an index.
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if (prefix + indexsuffix) not in fileset:
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continue
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result.append((prefix, mode, stat))
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return result
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def _computeincrementalpack(files, opts):
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"""Given a set of pack files along with the configuration options, this
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function computes the list of files that should be packed as part of an
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incremental repack.
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It tries to strike a balance between keeping incremental repacks cheap (i.e.
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packing small things when possible, and rolling the packs up to the big ones
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over time).
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"""
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limits = list(sorted((util.sizetoint(s) for s in opts['generations']),
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reverse=True))
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limits.append(0)
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# Group the packs by generation (i.e. by size)
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generations = []
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for i in pycompat.xrange(len(limits)):
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generations.append([])
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sizes = {}
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for prefix, mode, stat in files:
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size = stat.st_size
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if size > opts['repackmaxpacksize']:
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continue
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sizes[prefix] = size
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for i, limit in enumerate(limits):
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if size > limit:
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generations[i].append(prefix)
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break
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# Steps for picking what packs to repack:
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# 1. Pick the largest generation with > gencountlimit pack files.
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# 2. Take the smallest three packs.
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# 3. While total-size-of-packs < repacksizelimit: add another pack
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# Find the largest generation with more than gencountlimit packs
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genpacks = []
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for i, limit in enumerate(limits):
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if len(generations[i]) > opts['gencountlimit']:
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# Sort to be smallest last, for easy popping later
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genpacks.extend(sorted(generations[i], reverse=True,
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key=lambda x: sizes[x]))
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break
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# Take as many packs from the generation as we can
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chosenpacks = genpacks[-3:]
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genpacks = genpacks[:-3]
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repacksize = sum(sizes[n] for n in chosenpacks)
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while (repacksize < opts['repacksizelimit'] and genpacks and
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len(chosenpacks) < opts['maxrepackpacks']):
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chosenpacks.append(genpacks.pop())
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repacksize += sizes[chosenpacks[-1]]
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return chosenpacks
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def _runrepack(repo, data, history, packpath, category, fullhistory=None,
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options=None):
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shallowutil.mkstickygroupdir(repo.ui, packpath)
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def isold(repo, filename, node):
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"""Check if the file node is older than a limit.
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Unless a limit is specified in the config the default limit is taken.
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"""
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filectx = repo.filectx(filename, fileid=node)
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filetime = repo[filectx.linkrev()].date()
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ttl = repo.ui.configint('remotefilelog', 'nodettl')
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limit = time.time() - ttl
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return filetime[0] < limit
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garbagecollect = repo.ui.configbool('remotefilelog', 'gcrepack')
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if not fullhistory:
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fullhistory = history
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packer = repacker(repo, data, history, fullhistory, category,
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gc=garbagecollect, isold=isold, options=options)
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with datapack.mutabledatapack(repo.ui, packpath, version=2) as dpack:
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with historypack.mutablehistorypack(repo.ui, packpath) as hpack:
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try:
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packer.run(dpack, hpack)
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except error.LockHeld:
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raise RepackAlreadyRunning(_("skipping repack - another repack "
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"is already running"))
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def keepset(repo, keyfn, lastkeepkeys=None):
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"""Computes a keepset which is not garbage collected.
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'keyfn' is a function that maps filename, node to a unique key.
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'lastkeepkeys' is an optional argument and if provided the keepset
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function updates lastkeepkeys with more keys and returns the result.
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"""
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if not lastkeepkeys:
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keepkeys = set()
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else:
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keepkeys = lastkeepkeys
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# We want to keep:
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# 1. Working copy parent
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# 2. Draft commits
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# 3. Parents of draft commits
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# 4. Pullprefetch and bgprefetchrevs revsets if specified
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revs = ['.', 'draft()', 'parents(draft())']
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prefetchrevs = repo.ui.config('remotefilelog', 'pullprefetch', None)
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if prefetchrevs:
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revs.append('(%s)' % prefetchrevs)
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prefetchrevs = repo.ui.config('remotefilelog', 'bgprefetchrevs', None)
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if prefetchrevs:
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revs.append('(%s)' % prefetchrevs)
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revs = '+'.join(revs)
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revs = ['sort((%s), "topo")' % revs]
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keep = scmutil.revrange(repo, revs)
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processed = set()
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lastmanifest = None
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# process the commits in toposorted order starting from the oldest
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for r in reversed(keep._list):
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if repo[r].p1().rev() in processed:
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# if the direct parent has already been processed
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# then we only need to process the delta
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m = repo[r].manifestctx().readdelta()
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else:
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# otherwise take the manifest and diff it
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# with the previous manifest if one exists
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if lastmanifest:
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m = repo[r].manifest().diff(lastmanifest)
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else:
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m = repo[r].manifest()
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lastmanifest = repo[r].manifest()
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processed.add(r)
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# populate keepkeys with keys from the current manifest
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if type(m) is dict:
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# m is a result of diff of two manifests and is a dictionary that
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# maps filename to ((newnode, newflag), (oldnode, oldflag)) tuple
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for filename, diff in m.iteritems():
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if diff[0][0] is not None:
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keepkeys.add(keyfn(filename, diff[0][0]))
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else:
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# m is a manifest object
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for filename, filenode in m.iteritems():
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keepkeys.add(keyfn(filename, filenode))
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return keepkeys
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class repacker(object):
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"""Class for orchestrating the repack of data and history information into a
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new format.
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"""
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def __init__(self, repo, data, history, fullhistory, category, gc=False,
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isold=None, options=None):
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self.repo = repo
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self.data = data
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self.history = history
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self.fullhistory = fullhistory
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self.unit = constants.getunits(category)
|
|
|
self.garbagecollect = gc
|
|
|
self.options = options
|
|
|
if self.garbagecollect:
|
|
|
if not isold:
|
|
|
raise ValueError("Function 'isold' is not properly specified")
|
|
|
# use (filename, node) tuple as a keepset key
|
|
|
self.keepkeys = keepset(repo, lambda f, n : (f, n))
|
|
|
self.isold = isold
|
|
|
|
|
|
def run(self, targetdata, targethistory):
|
|
|
ledger = repackledger()
|
|
|
|
|
|
with extutil.flock(repacklockvfs(self.repo).join("repacklock"),
|
|
|
_('repacking %s') % self.repo.origroot, timeout=0):
|
|
|
self.repo.hook('prerepack')
|
|
|
|
|
|
# Populate ledger from source
|
|
|
self.data.markledger(ledger, options=self.options)
|
|
|
self.history.markledger(ledger, options=self.options)
|
|
|
|
|
|
# Run repack
|
|
|
self.repackdata(ledger, targetdata)
|
|
|
self.repackhistory(ledger, targethistory)
|
|
|
|
|
|
# Call cleanup on each source
|
|
|
for source in ledger.sources:
|
|
|
source.cleanup(ledger)
|
|
|
|
|
|
def _chainorphans(self, ui, filename, nodes, orphans, deltabases):
|
|
|
"""Reorderes ``orphans`` into a single chain inside ``nodes`` and
|
|
|
``deltabases``.
|
|
|
|
|
|
We often have orphan entries (nodes without a base that aren't
|
|
|
referenced by other nodes -- i.e., part of a chain) due to gaps in
|
|
|
history. Rather than store them as individual fulltexts, we prefer to
|
|
|
insert them as one chain sorted by size.
|
|
|
"""
|
|
|
if not orphans:
|
|
|
return nodes
|
|
|
|
|
|
def getsize(node, default=0):
|
|
|
meta = self.data.getmeta(filename, node)
|
|
|
if constants.METAKEYSIZE in meta:
|
|
|
return meta[constants.METAKEYSIZE]
|
|
|
else:
|
|
|
return default
|
|
|
|
|
|
# Sort orphans by size; biggest first is preferred, since it's more
|
|
|
# likely to be the newest version assuming files grow over time.
|
|
|
# (Sort by node first to ensure the sort is stable.)
|
|
|
orphans = sorted(orphans)
|
|
|
orphans = list(sorted(orphans, key=getsize, reverse=True))
|
|
|
if ui.debugflag:
|
|
|
ui.debug("%s: orphan chain: %s\n" % (filename,
|
|
|
", ".join([short(s) for s in orphans])))
|
|
|
|
|
|
# Create one contiguous chain and reassign deltabases.
|
|
|
for i, node in enumerate(orphans):
|
|
|
if i == 0:
|
|
|
deltabases[node] = (nullid, 0)
|
|
|
else:
|
|
|
parent = orphans[i - 1]
|
|
|
deltabases[node] = (parent, deltabases[parent][1] + 1)
|
|
|
nodes = [n for n in nodes if n not in orphans]
|
|
|
nodes += orphans
|
|
|
return nodes
|
|
|
|
|
|
def repackdata(self, ledger, target):
|
|
|
ui = self.repo.ui
|
|
|
maxchainlen = ui.configint('packs', 'maxchainlen', 1000)
|
|
|
|
|
|
byfile = {}
|
|
|
for entry in ledger.entries.itervalues():
|
|
|
if entry.datasource:
|
|
|
byfile.setdefault(entry.filename, {})[entry.node] = entry
|
|
|
|
|
|
count = 0
|
|
|
repackprogress = ui.makeprogress(_("repacking data"), unit=self.unit,
|
|
|
total=len(byfile))
|
|
|
for filename, entries in sorted(byfile.iteritems()):
|
|
|
repackprogress.update(count)
|
|
|
|
|
|
ancestors = {}
|
|
|
nodes = list(node for node in entries)
|
|
|
nohistory = []
|
|
|
buildprogress = ui.makeprogress(_("building history"), unit='nodes',
|
|
|
total=len(nodes))
|
|
|
for i, node in enumerate(nodes):
|
|
|
if node in ancestors:
|
|
|
continue
|
|
|
buildprogress.update(i)
|
|
|
try:
|
|
|
ancestors.update(self.fullhistory.getancestors(filename,
|
|
|
node, known=ancestors))
|
|
|
except KeyError:
|
|
|
# Since we're packing data entries, we may not have the
|
|
|
# corresponding history entries for them. It's not a big
|
|
|
# deal, but the entries won't be delta'd perfectly.
|
|
|
nohistory.append(node)
|
|
|
buildprogress.complete()
|
|
|
|
|
|
# Order the nodes children first, so we can produce reverse deltas
|
|
|
orderednodes = list(reversed(self._toposort(ancestors)))
|
|
|
if len(nohistory) > 0:
|
|
|
ui.debug('repackdata: %d nodes without history\n' %
|
|
|
len(nohistory))
|
|
|
orderednodes.extend(sorted(nohistory))
|
|
|
|
|
|
# Filter orderednodes to just the nodes we want to serialize (it
|
|
|
# currently also has the edge nodes' ancestors).
|
|
|
orderednodes = list(filter(lambda node: node in nodes,
|
|
|
orderednodes))
|
|
|
|
|
|
# Garbage collect old nodes:
|
|
|
if self.garbagecollect:
|
|
|
neworderednodes = []
|
|
|
for node in orderednodes:
|
|
|
# If the node is old and is not in the keepset, we skip it,
|
|
|
# and mark as garbage collected
|
|
|
if ((filename, node) not in self.keepkeys and
|
|
|
self.isold(self.repo, filename, node)):
|
|
|
entries[node].gced = True
|
|
|
continue
|
|
|
neworderednodes.append(node)
|
|
|
orderednodes = neworderednodes
|
|
|
|
|
|
# Compute delta bases for nodes:
|
|
|
deltabases = {}
|
|
|
nobase = set()
|
|
|
referenced = set()
|
|
|
nodes = set(nodes)
|
|
|
processprogress = ui.makeprogress(_("processing nodes"),
|
|
|
unit='nodes',
|
|
|
total=len(orderednodes))
|
|
|
for i, node in enumerate(orderednodes):
|
|
|
processprogress.update(i)
|
|
|
# Find delta base
|
|
|
# TODO: allow delta'ing against most recent descendant instead
|
|
|
# of immediate child
|
|
|
deltatuple = deltabases.get(node, None)
|
|
|
if deltatuple is None:
|
|
|
deltabase, chainlen = nullid, 0
|
|
|
deltabases[node] = (nullid, 0)
|
|
|
nobase.add(node)
|
|
|
else:
|
|
|
deltabase, chainlen = deltatuple
|
|
|
referenced.add(deltabase)
|
|
|
|
|
|
# Use available ancestor information to inform our delta choices
|
|
|
ancestorinfo = ancestors.get(node)
|
|
|
if ancestorinfo:
|
|
|
p1, p2, linknode, copyfrom = ancestorinfo
|
|
|
|
|
|
# The presence of copyfrom means we're at a point where the
|
|
|
# file was copied from elsewhere. So don't attempt to do any
|
|
|
# deltas with the other file.
|
|
|
if copyfrom:
|
|
|
p1 = nullid
|
|
|
|
|
|
if chainlen < maxchainlen:
|
|
|
# Record this child as the delta base for its parents.
|
|
|
# This may be non optimal, since the parents may have
|
|
|
# many children, and this will only choose the last one.
|
|
|
# TODO: record all children and try all deltas to find
|
|
|
# best
|
|
|
if p1 != nullid:
|
|
|
deltabases[p1] = (node, chainlen + 1)
|
|
|
if p2 != nullid:
|
|
|
deltabases[p2] = (node, chainlen + 1)
|
|
|
|
|
|
# experimental config: repack.chainorphansbysize
|
|
|
if ui.configbool('repack', 'chainorphansbysize'):
|
|
|
orphans = nobase - referenced
|
|
|
orderednodes = self._chainorphans(ui, filename, orderednodes,
|
|
|
orphans, deltabases)
|
|
|
|
|
|
# Compute deltas and write to the pack
|
|
|
for i, node in enumerate(orderednodes):
|
|
|
deltabase, chainlen = deltabases[node]
|
|
|
# Compute delta
|
|
|
# TODO: Optimize the deltachain fetching. Since we're
|
|
|
# iterating over the different version of the file, we may
|
|
|
# be fetching the same deltachain over and over again.
|
|
|
if deltabase != nullid:
|
|
|
deltaentry = self.data.getdelta(filename, node)
|
|
|
delta, deltabasename, origdeltabase, meta = deltaentry
|
|
|
size = meta.get(constants.METAKEYSIZE)
|
|
|
if (deltabasename != filename or origdeltabase != deltabase
|
|
|
or size is None):
|
|
|
deltabasetext = self.data.get(filename, deltabase)
|
|
|
original = self.data.get(filename, node)
|
|
|
size = len(original)
|
|
|
delta = mdiff.textdiff(deltabasetext, original)
|
|
|
else:
|
|
|
delta = self.data.get(filename, node)
|
|
|
size = len(delta)
|
|
|
meta = self.data.getmeta(filename, node)
|
|
|
|
|
|
# TODO: don't use the delta if it's larger than the fulltext
|
|
|
if constants.METAKEYSIZE not in meta:
|
|
|
meta[constants.METAKEYSIZE] = size
|
|
|
target.add(filename, node, deltabase, delta, meta)
|
|
|
|
|
|
entries[node].datarepacked = True
|
|
|
|
|
|
processprogress.complete()
|
|
|
count += 1
|
|
|
|
|
|
repackprogress.complete()
|
|
|
target.close(ledger=ledger)
|
|
|
|
|
|
def repackhistory(self, ledger, target):
|
|
|
ui = self.repo.ui
|
|
|
|
|
|
byfile = {}
|
|
|
for entry in ledger.entries.itervalues():
|
|
|
if entry.historysource:
|
|
|
byfile.setdefault(entry.filename, {})[entry.node] = entry
|
|
|
|
|
|
progress = ui.makeprogress(_("repacking history"), unit=self.unit,
|
|
|
total=len(byfile))
|
|
|
for filename, entries in sorted(byfile.iteritems()):
|
|
|
ancestors = {}
|
|
|
nodes = list(node for node in entries)
|
|
|
|
|
|
for node in nodes:
|
|
|
if node in ancestors:
|
|
|
continue
|
|
|
ancestors.update(self.history.getancestors(filename, node,
|
|
|
known=ancestors))
|
|
|
|
|
|
# Order the nodes children first
|
|
|
orderednodes = reversed(self._toposort(ancestors))
|
|
|
|
|
|
# Write to the pack
|
|
|
dontprocess = set()
|
|
|
for node in orderednodes:
|
|
|
p1, p2, linknode, copyfrom = ancestors[node]
|
|
|
|
|
|
# If the node is marked dontprocess, but it's also in the
|
|
|
# explicit entries set, that means the node exists both in this
|
|
|
# file and in another file that was copied to this file.
|
|
|
# Usually this happens if the file was copied to another file,
|
|
|
# then the copy was deleted, then reintroduced without copy
|
|
|
# metadata. The original add and the new add have the same hash
|
|
|
# since the content is identical and the parents are null.
|
|
|
if node in dontprocess and node not in entries:
|
|
|
# If copyfrom == filename, it means the copy history
|
|
|
# went to come other file, then came back to this one, so we
|
|
|
# should continue processing it.
|
|
|
if p1 != nullid and copyfrom != filename:
|
|
|
dontprocess.add(p1)
|
|
|
if p2 != nullid:
|
|
|
dontprocess.add(p2)
|
|
|
continue
|
|
|
|
|
|
if copyfrom:
|
|
|
dontprocess.add(p1)
|
|
|
|
|
|
target.add(filename, node, p1, p2, linknode, copyfrom)
|
|
|
|
|
|
if node in entries:
|
|
|
entries[node].historyrepacked = True
|
|
|
|
|
|
progress.increment()
|
|
|
|
|
|
progress.complete()
|
|
|
target.close(ledger=ledger)
|
|
|
|
|
|
def _toposort(self, ancestors):
|
|
|
def parentfunc(node):
|
|
|
p1, p2, linknode, copyfrom = ancestors[node]
|
|
|
parents = []
|
|
|
if p1 != nullid:
|
|
|
parents.append(p1)
|
|
|
if p2 != nullid:
|
|
|
parents.append(p2)
|
|
|
return parents
|
|
|
|
|
|
sortednodes = shallowutil.sortnodes(ancestors.keys(), parentfunc)
|
|
|
return sortednodes
|
|
|
|
|
|
class repackledger(object):
|
|
|
"""Storage for all the bookkeeping that happens during a repack. It contains
|
|
|
the list of revisions being repacked, what happened to each revision, and
|
|
|
which source store contained which revision originally (for later cleanup).
|
|
|
"""
|
|
|
def __init__(self):
|
|
|
self.entries = {}
|
|
|
self.sources = {}
|
|
|
self.created = set()
|
|
|
|
|
|
def markdataentry(self, source, filename, node):
|
|
|
"""Mark the given filename+node revision as having a data rev in the
|
|
|
given source.
|
|
|
"""
|
|
|
entry = self._getorcreateentry(filename, node)
|
|
|
entry.datasource = True
|
|
|
entries = self.sources.get(source)
|
|
|
if not entries:
|
|
|
entries = set()
|
|
|
self.sources[source] = entries
|
|
|
entries.add(entry)
|
|
|
|
|
|
def markhistoryentry(self, source, filename, node):
|
|
|
"""Mark the given filename+node revision as having a history rev in the
|
|
|
given source.
|
|
|
"""
|
|
|
entry = self._getorcreateentry(filename, node)
|
|
|
entry.historysource = True
|
|
|
entries = self.sources.get(source)
|
|
|
if not entries:
|
|
|
entries = set()
|
|
|
self.sources[source] = entries
|
|
|
entries.add(entry)
|
|
|
|
|
|
def _getorcreateentry(self, filename, node):
|
|
|
key = (filename, node)
|
|
|
value = self.entries.get(key)
|
|
|
if not value:
|
|
|
value = repackentry(filename, node)
|
|
|
self.entries[key] = value
|
|
|
|
|
|
return value
|
|
|
|
|
|
def addcreated(self, value):
|
|
|
self.created.add(value)
|
|
|
|
|
|
class repackentry(object):
|
|
|
"""Simple class representing a single revision entry in the repackledger.
|
|
|
"""
|
|
|
__slots__ = (r'filename', r'node', r'datasource', r'historysource',
|
|
|
r'datarepacked', r'historyrepacked', r'gced')
|
|
|
def __init__(self, filename, node):
|
|
|
self.filename = filename
|
|
|
self.node = node
|
|
|
# If the revision has a data entry in the source
|
|
|
self.datasource = False
|
|
|
# If the revision has a history entry in the source
|
|
|
self.historysource = False
|
|
|
# If the revision's data entry was repacked into the repack target
|
|
|
self.datarepacked = False
|
|
|
# If the revision's history entry was repacked into the repack target
|
|
|
self.historyrepacked = False
|
|
|
# If garbage collected
|
|
|
self.gced = False
|
|
|
|
|
|
def repacklockvfs(repo):
|
|
|
if util.safehasattr(repo, 'name'):
|
|
|
# Lock in the shared cache so repacks across multiple copies of the same
|
|
|
# repo are coordinated.
|
|
|
sharedcachepath = shallowutil.getcachepackpath(
|
|
|
repo,
|
|
|
constants.FILEPACK_CATEGORY)
|
|
|
return vfs.vfs(sharedcachepath)
|
|
|
else:
|
|
|
return repo.svfs
|
|
|
|
