mirror of
https://github.com/facebook/sapling.git
synced 2024-10-10 00:45:18 +03:00
ebe8e04f0d
This commit makes it so sparse treats passed paths as CWD-relative, not repo-root-realive. This is a more intuitive behavior in my (and some other FB people's) opinion. This is breaking change however. My hope here is that since sparse is experimental, it's ok to introduce BCs. The reason (glob)s are needed in the test is this: in these two cases we do not supply path together with slashes, but `os.path.join` adds them, which means that under Windows they can be backslashes. To demonstrate this behavior, one could remove the (glob)s and run `./run-tests.py test-sparse.t` from MinGW's terminal on Windows.
705 lines
24 KiB
Python
705 lines
24 KiB
Python
# sparse.py - functionality for sparse checkouts
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#
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# Copyright 2014 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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from __future__ import absolute_import
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import collections
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import hashlib
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import os
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from .i18n import _
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from .node import nullid
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from . import (
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error,
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match as matchmod,
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merge as mergemod,
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pathutil,
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pycompat,
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scmutil,
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util,
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)
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# Whether sparse features are enabled. This variable is intended to be
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# temporary to facilitate porting sparse to core. It should eventually be
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# a per-repo option, possibly a repo requirement.
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enabled = False
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def parseconfig(ui, raw):
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"""Parse sparse config file content.
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Returns a tuple of includes, excludes, and profiles.
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"""
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includes = set()
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excludes = set()
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profiles = set()
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current = None
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havesection = False
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for line in raw.split('\n'):
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line = line.strip()
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if not line or line.startswith('#'):
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# empty or comment line, skip
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continue
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elif line.startswith('%include '):
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line = line[9:].strip()
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if line:
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profiles.add(line)
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elif line == '[include]':
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if havesection and current != includes:
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# TODO pass filename into this API so we can report it.
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raise error.Abort(_('sparse config cannot have includes ' +
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'after excludes'))
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havesection = True
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current = includes
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continue
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elif line == '[exclude]':
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havesection = True
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current = excludes
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elif line:
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if current is None:
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raise error.Abort(_('sparse config entry outside of '
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'section: %s') % line,
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hint=_('add an [include] or [exclude] line '
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'to declare the entry type'))
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if line.strip().startswith('/'):
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ui.warn(_('warning: sparse profile cannot use' +
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' paths starting with /, ignoring %s\n') % line)
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continue
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current.add(line)
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return includes, excludes, profiles
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# Exists as separate function to facilitate monkeypatching.
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def readprofile(repo, profile, changeid):
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"""Resolve the raw content of a sparse profile file."""
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# TODO add some kind of cache here because this incurs a manifest
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# resolve and can be slow.
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return repo.filectx(profile, changeid=changeid).data()
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def patternsforrev(repo, rev):
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"""Obtain sparse checkout patterns for the given rev.
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Returns a tuple of iterables representing includes, excludes, and
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patterns.
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"""
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# Feature isn't enabled. No-op.
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if not enabled:
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return set(), set(), set()
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raw = repo.vfs.tryread('sparse')
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if not raw:
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return set(), set(), set()
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if rev is None:
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raise error.Abort(_('cannot parse sparse patterns from working '
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'directory'))
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includes, excludes, profiles = parseconfig(repo.ui, raw)
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ctx = repo[rev]
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if profiles:
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visited = set()
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while profiles:
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profile = profiles.pop()
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if profile in visited:
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continue
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visited.add(profile)
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try:
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raw = readprofile(repo, profile, rev)
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except error.ManifestLookupError:
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msg = (
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"warning: sparse profile '%s' not found "
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"in rev %s - ignoring it\n" % (profile, ctx))
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# experimental config: sparse.missingwarning
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if repo.ui.configbool(
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'sparse', 'missingwarning'):
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repo.ui.warn(msg)
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else:
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repo.ui.debug(msg)
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continue
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pincludes, pexcludes, subprofs = parseconfig(repo.ui, raw)
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includes.update(pincludes)
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excludes.update(pexcludes)
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profiles.update(subprofs)
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profiles = visited
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if includes:
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includes.add('.hg*')
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return includes, excludes, profiles
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def activeconfig(repo):
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"""Determine the active sparse config rules.
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Rules are constructed by reading the current sparse config and bringing in
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referenced profiles from parents of the working directory.
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"""
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revs = [repo.changelog.rev(node) for node in
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repo.dirstate.parents() if node != nullid]
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allincludes = set()
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allexcludes = set()
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allprofiles = set()
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for rev in revs:
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includes, excludes, profiles = patternsforrev(repo, rev)
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allincludes |= includes
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allexcludes |= excludes
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allprofiles |= profiles
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return allincludes, allexcludes, allprofiles
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def configsignature(repo, includetemp=True):
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"""Obtain the signature string for the current sparse configuration.
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This is used to construct a cache key for matchers.
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"""
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cache = repo._sparsesignaturecache
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signature = cache.get('signature')
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if includetemp:
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tempsignature = cache.get('tempsignature')
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else:
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tempsignature = '0'
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if signature is None or (includetemp and tempsignature is None):
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signature = hashlib.sha1(repo.vfs.tryread('sparse')).hexdigest()
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cache['signature'] = signature
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if includetemp:
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raw = repo.vfs.tryread('tempsparse')
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tempsignature = hashlib.sha1(raw).hexdigest()
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cache['tempsignature'] = tempsignature
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return '%s %s' % (signature, tempsignature)
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def writeconfig(repo, includes, excludes, profiles):
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"""Write the sparse config file given a sparse configuration."""
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with repo.vfs('sparse', 'wb') as fh:
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for p in sorted(profiles):
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fh.write('%%include %s\n' % p)
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if includes:
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fh.write('[include]\n')
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for i in sorted(includes):
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fh.write(i)
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fh.write('\n')
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if excludes:
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fh.write('[exclude]\n')
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for e in sorted(excludes):
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fh.write(e)
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fh.write('\n')
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repo._sparsesignaturecache.clear()
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def readtemporaryincludes(repo):
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raw = repo.vfs.tryread('tempsparse')
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if not raw:
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return set()
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return set(raw.split('\n'))
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def writetemporaryincludes(repo, includes):
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repo.vfs.write('tempsparse', '\n'.join(sorted(includes)))
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repo._sparsesignaturecache.clear()
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def addtemporaryincludes(repo, additional):
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includes = readtemporaryincludes(repo)
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for i in additional:
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includes.add(i)
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writetemporaryincludes(repo, includes)
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def prunetemporaryincludes(repo):
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if not enabled or not repo.vfs.exists('tempsparse'):
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return
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s = repo.status()
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if s.modified or s.added or s.removed or s.deleted:
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# Still have pending changes. Don't bother trying to prune.
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return
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sparsematch = matcher(repo, includetemp=False)
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dirstate = repo.dirstate
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actions = []
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dropped = []
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tempincludes = readtemporaryincludes(repo)
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for file in tempincludes:
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if file in dirstate and not sparsematch(file):
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message = _('dropping temporarily included sparse files')
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actions.append((file, None, message))
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dropped.append(file)
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typeactions = collections.defaultdict(list)
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typeactions['r'] = actions
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mergemod.applyupdates(repo, typeactions, repo[None], repo['.'], False)
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# Fix dirstate
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for file in dropped:
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dirstate.drop(file)
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repo.vfs.unlink('tempsparse')
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repo._sparsesignaturecache.clear()
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msg = _('cleaned up %d temporarily added file(s) from the '
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'sparse checkout\n')
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repo.ui.status(msg % len(tempincludes))
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def forceincludematcher(matcher, includes):
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"""Returns a matcher that returns true for any of the forced includes
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before testing against the actual matcher."""
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kindpats = [('path', include, '') for include in includes]
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includematcher = matchmod.includematcher('', '', kindpats)
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return matchmod.unionmatcher([includematcher, matcher])
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def matcher(repo, revs=None, includetemp=True):
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"""Obtain a matcher for sparse working directories for the given revs.
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If multiple revisions are specified, the matcher is the union of all
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revs.
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``includetemp`` indicates whether to use the temporary sparse profile.
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"""
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# If sparse isn't enabled, sparse matcher matches everything.
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if not enabled:
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return matchmod.always(repo.root, '')
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if not revs or revs == [None]:
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revs = [repo.changelog.rev(node)
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for node in repo.dirstate.parents() if node != nullid]
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signature = configsignature(repo, includetemp=includetemp)
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key = '%s %s' % (signature, ' '.join(map(pycompat.bytestr, revs)))
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result = repo._sparsematchercache.get(key)
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if result:
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return result
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matchers = []
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for rev in revs:
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try:
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includes, excludes, profiles = patternsforrev(repo, rev)
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if includes or excludes:
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# Explicitly include subdirectories of includes so
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# status will walk them down to the actual include.
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subdirs = set()
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for include in includes:
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# TODO consider using posix path functions here so Windows
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# \ directory separators don't come into play.
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dirname = os.path.dirname(include)
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# basename is used to avoid issues with absolute
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# paths (which on Windows can include the drive).
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while os.path.basename(dirname):
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subdirs.add(dirname)
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dirname = os.path.dirname(dirname)
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matcher = matchmod.match(repo.root, '', [],
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include=includes, exclude=excludes,
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default='relpath')
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if subdirs:
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matcher = forceincludematcher(matcher, subdirs)
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matchers.append(matcher)
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except IOError:
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pass
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if not matchers:
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result = matchmod.always(repo.root, '')
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elif len(matchers) == 1:
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result = matchers[0]
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else:
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result = matchmod.unionmatcher(matchers)
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if includetemp:
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tempincludes = readtemporaryincludes(repo)
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result = forceincludematcher(result, tempincludes)
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repo._sparsematchercache[key] = result
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return result
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def filterupdatesactions(repo, wctx, mctx, branchmerge, actions):
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"""Filter updates to only lay out files that match the sparse rules."""
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if not enabled:
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return actions
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oldrevs = [pctx.rev() for pctx in wctx.parents()]
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oldsparsematch = matcher(repo, oldrevs)
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if oldsparsematch.always():
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return actions
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files = set()
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prunedactions = {}
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if branchmerge:
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# If we're merging, use the wctx filter, since we're merging into
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# the wctx.
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sparsematch = matcher(repo, [wctx.parents()[0].rev()])
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else:
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# If we're updating, use the target context's filter, since we're
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# moving to the target context.
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sparsematch = matcher(repo, [mctx.rev()])
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temporaryfiles = []
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for file, action in actions.iteritems():
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type, args, msg = action
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files.add(file)
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if sparsematch(file):
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prunedactions[file] = action
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elif type == 'm':
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temporaryfiles.append(file)
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prunedactions[file] = action
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elif branchmerge:
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if type != 'k':
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temporaryfiles.append(file)
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prunedactions[file] = action
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elif type == 'f':
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prunedactions[file] = action
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elif file in wctx:
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prunedactions[file] = ('r', args, msg)
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if len(temporaryfiles) > 0:
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repo.ui.status(_('temporarily included %d file(s) in the sparse '
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'checkout for merging\n') % len(temporaryfiles))
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addtemporaryincludes(repo, temporaryfiles)
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# Add the new files to the working copy so they can be merged, etc
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actions = []
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message = 'temporarily adding to sparse checkout'
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wctxmanifest = repo[None].manifest()
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for file in temporaryfiles:
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if file in wctxmanifest:
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fctx = repo[None][file]
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actions.append((file, (fctx.flags(), False), message))
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typeactions = collections.defaultdict(list)
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typeactions['g'] = actions
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mergemod.applyupdates(repo, typeactions, repo[None], repo['.'],
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False)
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dirstate = repo.dirstate
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for file, flags, msg in actions:
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dirstate.normal(file)
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profiles = activeconfig(repo)[2]
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changedprofiles = profiles & files
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# If an active profile changed during the update, refresh the checkout.
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# Don't do this during a branch merge, since all incoming changes should
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# have been handled by the temporary includes above.
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if changedprofiles and not branchmerge:
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mf = mctx.manifest()
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for file in mf:
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old = oldsparsematch(file)
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new = sparsematch(file)
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if not old and new:
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flags = mf.flags(file)
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prunedactions[file] = ('g', (flags, False), '')
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elif old and not new:
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prunedactions[file] = ('r', [], '')
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return prunedactions
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def refreshwdir(repo, origstatus, origsparsematch, force=False):
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"""Refreshes working directory by taking sparse config into account.
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The old status and sparse matcher is compared against the current sparse
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matcher.
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Will abort if a file with pending changes is being excluded or included
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unless ``force`` is True.
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"""
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# Verify there are no pending changes
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pending = set()
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pending.update(origstatus.modified)
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pending.update(origstatus.added)
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pending.update(origstatus.removed)
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sparsematch = matcher(repo)
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abort = False
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for f in pending:
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if not sparsematch(f):
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repo.ui.warn(_("pending changes to '%s'\n") % f)
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abort = not force
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if abort:
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raise error.Abort(_('could not update sparseness due to pending '
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'changes'))
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# Calculate actions
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dirstate = repo.dirstate
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ctx = repo['.']
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added = []
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lookup = []
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dropped = []
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mf = ctx.manifest()
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files = set(mf)
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actions = {}
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for file in files:
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old = origsparsematch(file)
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new = sparsematch(file)
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# Add files that are newly included, or that don't exist in
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# the dirstate yet.
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if (new and not old) or (old and new and not file in dirstate):
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fl = mf.flags(file)
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if repo.wvfs.exists(file):
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actions[file] = ('e', (fl,), '')
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lookup.append(file)
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else:
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actions[file] = ('g', (fl, False), '')
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added.append(file)
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# Drop files that are newly excluded, or that still exist in
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# the dirstate.
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elif (old and not new) or (not old and not new and file in dirstate):
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dropped.append(file)
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if file not in pending:
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actions[file] = ('r', [], '')
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# Verify there are no pending changes in newly included files
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abort = False
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for file in lookup:
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repo.ui.warn(_("pending changes to '%s'\n") % file)
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abort = not force
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if abort:
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raise error.Abort(_('cannot change sparseness due to pending '
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'changes (delete the files or use '
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'--force to bring them back dirty)'))
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# Check for files that were only in the dirstate.
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for file, state in dirstate.iteritems():
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if not file in files:
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old = origsparsematch(file)
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new = sparsematch(file)
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if old and not new:
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dropped.append(file)
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# Apply changes to disk
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typeactions = dict((m, []) for m in 'a f g am cd dc r dm dg m e k'.split())
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for f, (m, args, msg) in actions.iteritems():
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if m not in typeactions:
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typeactions[m] = []
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typeactions[m].append((f, args, msg))
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mergemod.applyupdates(repo, typeactions, repo[None], repo['.'], False)
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# Fix dirstate
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for file in added:
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dirstate.normal(file)
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for file in dropped:
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dirstate.drop(file)
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for file in lookup:
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# File exists on disk, and we're bringing it back in an unknown state.
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dirstate.normallookup(file)
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return added, dropped, lookup
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def aftercommit(repo, node):
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"""Perform actions after a working directory commit."""
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# This function is called unconditionally, even if sparse isn't
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# enabled.
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ctx = repo[node]
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profiles = patternsforrev(repo, ctx.rev())[2]
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# profiles will only have data if sparse is enabled.
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if profiles & set(ctx.files()):
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origstatus = repo.status()
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origsparsematch = matcher(repo)
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refreshwdir(repo, origstatus, origsparsematch, force=True)
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prunetemporaryincludes(repo)
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def _updateconfigandrefreshwdir(repo, includes, excludes, profiles,
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force=False, removing=False):
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"""Update the sparse config and working directory state."""
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raw = repo.vfs.tryread('sparse')
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oldincludes, oldexcludes, oldprofiles = parseconfig(repo.ui, raw)
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oldstatus = repo.status()
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oldmatch = matcher(repo)
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oldrequires = set(repo.requirements)
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# TODO remove this try..except once the matcher integrates better
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|
# with dirstate. We currently have to write the updated config
|
|
# because that will invalidate the matcher cache and force a
|
|
# re-read. We ideally want to update the cached matcher on the
|
|
# repo instance then flush the new config to disk once wdir is
|
|
# updated. But this requires massive rework to matcher() and its
|
|
# consumers.
|
|
|
|
if 'exp-sparse' in oldrequires and removing:
|
|
repo.requirements.discard('exp-sparse')
|
|
scmutil.writerequires(repo.vfs, repo.requirements)
|
|
elif 'exp-sparse' not in oldrequires:
|
|
repo.requirements.add('exp-sparse')
|
|
scmutil.writerequires(repo.vfs, repo.requirements)
|
|
|
|
try:
|
|
writeconfig(repo, includes, excludes, profiles)
|
|
return refreshwdir(repo, oldstatus, oldmatch, force=force)
|
|
except Exception:
|
|
if repo.requirements != oldrequires:
|
|
repo.requirements.clear()
|
|
repo.requirements |= oldrequires
|
|
scmutil.writerequires(repo.vfs, repo.requirements)
|
|
writeconfig(repo, oldincludes, oldexcludes, oldprofiles)
|
|
raise
|
|
|
|
def clearrules(repo, force=False):
|
|
"""Clears include/exclude rules from the sparse config.
|
|
|
|
The remaining sparse config only has profiles, if defined. The working
|
|
directory is refreshed, as needed.
|
|
"""
|
|
with repo.wlock():
|
|
raw = repo.vfs.tryread('sparse')
|
|
includes, excludes, profiles = parseconfig(repo.ui, raw)
|
|
|
|
if not includes and not excludes:
|
|
return
|
|
|
|
_updateconfigandrefreshwdir(repo, set(), set(), profiles, force=force)
|
|
|
|
def importfromfiles(repo, opts, paths, force=False):
|
|
"""Import sparse config rules from files.
|
|
|
|
The updated sparse config is written out and the working directory
|
|
is refreshed, as needed.
|
|
"""
|
|
with repo.wlock():
|
|
# read current configuration
|
|
raw = repo.vfs.tryread('sparse')
|
|
includes, excludes, profiles = parseconfig(repo.ui, raw)
|
|
aincludes, aexcludes, aprofiles = activeconfig(repo)
|
|
|
|
# Import rules on top; only take in rules that are not yet
|
|
# part of the active rules.
|
|
changed = False
|
|
for p in paths:
|
|
with util.posixfile(util.expandpath(p)) as fh:
|
|
raw = fh.read()
|
|
|
|
iincludes, iexcludes, iprofiles = parseconfig(repo.ui, raw)
|
|
oldsize = len(includes) + len(excludes) + len(profiles)
|
|
includes.update(iincludes - aincludes)
|
|
excludes.update(iexcludes - aexcludes)
|
|
profiles.update(iprofiles - aprofiles)
|
|
if len(includes) + len(excludes) + len(profiles) > oldsize:
|
|
changed = True
|
|
|
|
profilecount = includecount = excludecount = 0
|
|
fcounts = (0, 0, 0)
|
|
|
|
if changed:
|
|
profilecount = len(profiles - aprofiles)
|
|
includecount = len(includes - aincludes)
|
|
excludecount = len(excludes - aexcludes)
|
|
|
|
fcounts = map(len, _updateconfigandrefreshwdir(
|
|
repo, includes, excludes, profiles, force=force))
|
|
|
|
printchanges(repo.ui, opts, profilecount, includecount, excludecount,
|
|
*fcounts)
|
|
|
|
def updateconfig(repo, pats, opts, include=False, exclude=False, reset=False,
|
|
delete=False, enableprofile=False, disableprofile=False,
|
|
force=False, usereporootpaths=False):
|
|
"""Perform a sparse config update.
|
|
|
|
Only one of the actions may be performed.
|
|
|
|
The new config is written out and a working directory refresh is performed.
|
|
"""
|
|
with repo.wlock():
|
|
raw = repo.vfs.tryread('sparse')
|
|
oldinclude, oldexclude, oldprofiles = parseconfig(repo.ui, raw)
|
|
|
|
if reset:
|
|
newinclude = set()
|
|
newexclude = set()
|
|
newprofiles = set()
|
|
else:
|
|
newinclude = set(oldinclude)
|
|
newexclude = set(oldexclude)
|
|
newprofiles = set(oldprofiles)
|
|
|
|
if any(os.path.isabs(pat) for pat in pats):
|
|
raise error.Abort(_('paths cannot be absolute'))
|
|
|
|
if not usereporootpaths:
|
|
# let's treat paths as relative to cwd
|
|
root, cwd = repo.root, repo.getcwd()
|
|
abspats = []
|
|
for kindpat in pats:
|
|
kind, pat = matchmod._patsplit(kindpat, None)
|
|
if kind in matchmod.cwdrelativepatternkinds or kind is None:
|
|
ap = (kind + ':' if kind else '') +\
|
|
pathutil.canonpath(root, cwd, pat)
|
|
abspats.append(ap)
|
|
else:
|
|
abspats.append(kindpat)
|
|
pats = abspats
|
|
|
|
if include:
|
|
newinclude.update(pats)
|
|
elif exclude:
|
|
newexclude.update(pats)
|
|
elif enableprofile:
|
|
newprofiles.update(pats)
|
|
elif disableprofile:
|
|
newprofiles.difference_update(pats)
|
|
elif delete:
|
|
newinclude.difference_update(pats)
|
|
newexclude.difference_update(pats)
|
|
|
|
profilecount = (len(newprofiles - oldprofiles) -
|
|
len(oldprofiles - newprofiles))
|
|
includecount = (len(newinclude - oldinclude) -
|
|
len(oldinclude - newinclude))
|
|
excludecount = (len(newexclude - oldexclude) -
|
|
len(oldexclude - newexclude))
|
|
|
|
fcounts = map(len, _updateconfigandrefreshwdir(
|
|
repo, newinclude, newexclude, newprofiles, force=force,
|
|
removing=reset))
|
|
|
|
printchanges(repo.ui, opts, profilecount, includecount,
|
|
excludecount, *fcounts)
|
|
|
|
def printchanges(ui, opts, profilecount=0, includecount=0, excludecount=0,
|
|
added=0, dropped=0, conflicting=0):
|
|
"""Print output summarizing sparse config changes."""
|
|
with ui.formatter('sparse', opts) as fm:
|
|
fm.startitem()
|
|
fm.condwrite(ui.verbose, 'profiles_added', _('Profiles changed: %d\n'),
|
|
profilecount)
|
|
fm.condwrite(ui.verbose, 'include_rules_added',
|
|
_('Include rules changed: %d\n'), includecount)
|
|
fm.condwrite(ui.verbose, 'exclude_rules_added',
|
|
_('Exclude rules changed: %d\n'), excludecount)
|
|
|
|
# In 'plain' verbose mode, mergemod.applyupdates already outputs what
|
|
# files are added or removed outside of the templating formatter
|
|
# framework. No point in repeating ourselves in that case.
|
|
if not fm.isplain():
|
|
fm.condwrite(ui.verbose, 'files_added', _('Files added: %d\n'),
|
|
added)
|
|
fm.condwrite(ui.verbose, 'files_dropped', _('Files dropped: %d\n'),
|
|
dropped)
|
|
fm.condwrite(ui.verbose, 'files_conflicting',
|
|
_('Files conflicting: %d\n'), conflicting)
|