Mercurial > hg
view hgext/sparse.py @ 33297:ba5d89774db6
sparse: move config parsing into core
This patch marks the beginning of moving code from the sparse
extension into core. The goal is to move as much of the
functionality as possible into core, where it will be an
experimental feature. The extension will likely continue to
exist to enable the feature and provide UI elements.
As part of the move, the repo method was converted to a module
function. It doesn't need to exist on repos.
An error message was also updated to reflect that an error isn't
necessarily from the .hg/sparse file. The API should be updated
later to pass in a filename so the error can be more descriptive.
Copyright of the added file was copied from the sparse extension.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Thu, 06 Jul 2017 12:14:03 -0700 |
parents | ee616196227c |
children | f41a99c45956 |
line wrap: on
line source
# sparse.py - allow sparse checkouts of the working directory # # Copyright 2014 Facebook, Inc. # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. """allow sparse checkouts of the working directory (EXPERIMENTAL) (This extension is not yet protected by backwards compatibility guarantees. Any aspect may break in future releases until this notice is removed.) This extension allows the working directory to only consist of a subset of files for the revision. This allows specific files or directories to be explicitly included or excluded. Many repository operations have performance proportional to the number of files in the working directory. So only realizing a subset of files in the working directory can improve performance. Sparse Config Files ------------------- The set of files that are part of a sparse checkout are defined by a sparse config file. The file defines 3 things: includes (files to include in the sparse checkout), excludes (files to exclude from the sparse checkout), and profiles (links to other config files). The file format is newline delimited. Empty lines and lines beginning with ``#`` are ignored. Lines beginning with ``%include `` denote another sparse config file to include. e.g. ``%include tests.sparse``. The filename is relative to the repository root. The special lines ``[include]`` and ``[exclude]`` denote the section for includes and excludes that follow, respectively. It is illegal to have ``[include]`` after ``[exclude]``. If no sections are defined, entries are assumed to be in the ``[include]`` section. Non-special lines resemble file patterns to be added to either includes or excludes. The syntax of these lines is documented by :hg:`help patterns`. Patterns are interpreted as ``glob:`` by default and match against the root of the repository. Exclusion patterns take precedence over inclusion patterns. So even if a file is explicitly included, an ``[exclude]`` entry can remove it. For example, say you have a repository with 3 directories, ``frontend/``, ``backend/``, and ``tools/``. ``frontend/`` and ``backend/`` correspond to different projects and it is uncommon for someone working on one to need the files for the other. But ``tools/`` contains files shared between both projects. Your sparse config files may resemble:: # frontend.sparse frontend/** tools/** # backend.sparse backend/** tools/** Say the backend grows in size. Or there's a directory with thousands of files you wish to exclude. You can modify the profile to exclude certain files:: [include] backend/** tools/** [exclude] tools/tests/** """ from __future__ import absolute_import import collections import hashlib import os from mercurial.i18n import _ from mercurial.node import nullid from mercurial import ( cmdutil, commands, context, dirstate, error, extensions, hg, localrepo, match as matchmod, merge as mergemod, registrar, sparse, util, ) # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should # be specifying the version(s) of Mercurial they are tested with, or # leave the attribute unspecified. testedwith = 'ships-with-hg-core' cmdtable = {} command = registrar.command(cmdtable) def uisetup(ui): _setupupdates(ui) _setupcommit(ui) def extsetup(ui): _setupclone(ui) _setuplog(ui) _setupadd(ui) _setupdirstate(ui) # if fsmonitor is enabled, tell it to use our hash function try: fsmonitor = extensions.find('fsmonitor') def _hashignore(orig, ignore): return _hashmatcher(ignore) extensions.wrapfunction(fsmonitor, '_hashignore', _hashignore) except KeyError: pass def reposetup(ui, repo): if not util.safehasattr(repo, 'dirstate'): return _wraprepo(ui, repo) def replacefilecache(cls, propname, replacement): """Replace a filecache property with a new class. This allows changing the cache invalidation condition.""" origcls = cls assert callable(replacement) while cls is not object: if propname in cls.__dict__: orig = cls.__dict__[propname] setattr(cls, propname, replacement(orig)) break cls = cls.__bases__[0] if cls is object: raise AttributeError(_("type '%s' has no property '%s'") % (origcls, propname)) def _setupupdates(ui): def _calculateupdates(orig, repo, wctx, mctx, ancestors, branchmerge, *arg, **kwargs): """Filter updates to only lay out files that match the sparse rules. """ actions, diverge, renamedelete = orig(repo, wctx, mctx, ancestors, branchmerge, *arg, **kwargs) if not util.safehasattr(repo, 'sparsematch'): return actions, diverge, renamedelete files = set() prunedactions = {} oldrevs = [pctx.rev() for pctx in wctx.parents()] oldsparsematch = repo.sparsematch(*oldrevs) if branchmerge: # If we're merging, use the wctx filter, since we're merging into # the wctx. sparsematch = repo.sparsematch(wctx.parents()[0].rev()) else: # If we're updating, use the target context's filter, since we're # moving to the target context. sparsematch = repo.sparsematch(mctx.rev()) temporaryfiles = [] for file, action in actions.iteritems(): type, args, msg = action files.add(file) if sparsematch(file): prunedactions[file] = action elif type == 'm': temporaryfiles.append(file) prunedactions[file] = action elif branchmerge: if type != 'k': temporaryfiles.append(file) prunedactions[file] = action elif type == 'f': prunedactions[file] = action elif file in wctx: prunedactions[file] = ('r', args, msg) if len(temporaryfiles) > 0: ui.status(_("temporarily included %d file(s) in the sparse checkout" " for merging\n") % len(temporaryfiles)) repo.addtemporaryincludes(temporaryfiles) # Add the new files to the working copy so they can be merged, etc actions = [] message = 'temporarily adding to sparse checkout' wctxmanifest = repo[None].manifest() for file in temporaryfiles: if file in wctxmanifest: fctx = repo[None][file] actions.append((file, (fctx.flags(), False), message)) typeactions = collections.defaultdict(list) typeactions['g'] = actions mergemod.applyupdates(repo, typeactions, repo[None], repo['.'], False) dirstate = repo.dirstate for file, flags, msg in actions: dirstate.normal(file) profiles = repo.getactiveprofiles() changedprofiles = profiles & files # If an active profile changed during the update, refresh the checkout. # Don't do this during a branch merge, since all incoming changes should # have been handled by the temporary includes above. if changedprofiles and not branchmerge: mf = mctx.manifest() for file in mf: old = oldsparsematch(file) new = sparsematch(file) if not old and new: flags = mf.flags(file) prunedactions[file] = ('g', (flags, False), '') elif old and not new: prunedactions[file] = ('r', [], '') return prunedactions, diverge, renamedelete extensions.wrapfunction(mergemod, 'calculateupdates', _calculateupdates) def _update(orig, repo, node, branchmerge, *args, **kwargs): results = orig(repo, node, branchmerge, *args, **kwargs) # If we're updating to a location, clean up any stale temporary includes # (ex: this happens during hg rebase --abort). if not branchmerge and util.safehasattr(repo, 'sparsematch'): repo.prunetemporaryincludes() return results extensions.wrapfunction(mergemod, 'update', _update) def _setupcommit(ui): def _refreshoncommit(orig, self, node): """Refresh the checkout when commits touch .hgsparse """ orig(self, node) repo = self._repo if util.safehasattr(repo, 'getsparsepatterns'): ctx = repo[node] _, _, profiles = repo.getsparsepatterns(ctx.rev()) if set(profiles) & set(ctx.files()): origstatus = repo.status() origsparsematch = repo.sparsematch() _refresh(repo.ui, repo, origstatus, origsparsematch, True) repo.prunetemporaryincludes() extensions.wrapfunction(context.committablectx, 'markcommitted', _refreshoncommit) def _setuplog(ui): entry = commands.table['^log|history'] entry[1].append(('', 'sparse', None, "limit to changesets affecting the sparse checkout")) def _logrevs(orig, repo, opts): revs = orig(repo, opts) if opts.get('sparse'): sparsematch = repo.sparsematch() def ctxmatch(rev): ctx = repo[rev] return any(f for f in ctx.files() if sparsematch(f)) revs = revs.filter(ctxmatch) return revs extensions.wrapfunction(cmdutil, '_logrevs', _logrevs) def _clonesparsecmd(orig, ui, repo, *args, **opts): include_pat = opts.get('include') exclude_pat = opts.get('exclude') enableprofile_pat = opts.get('enable_profile') include = exclude = enableprofile = False if include_pat: pat = include_pat include = True if exclude_pat: pat = exclude_pat exclude = True if enableprofile_pat: pat = enableprofile_pat enableprofile = True if sum([include, exclude, enableprofile]) > 1: raise error.Abort(_("too many flags specified.")) if include or exclude or enableprofile: def clonesparse(orig, self, node, overwrite, *args, **kwargs): _config(self.ui, self.unfiltered(), pat, {}, include=include, exclude=exclude, enableprofile=enableprofile) return orig(self, node, overwrite, *args, **kwargs) extensions.wrapfunction(hg, 'updaterepo', clonesparse) return orig(ui, repo, *args, **opts) def _setupclone(ui): entry = commands.table['^clone'] entry[1].append(('', 'enable-profile', [], 'enable a sparse profile')) entry[1].append(('', 'include', [], 'include sparse pattern')) entry[1].append(('', 'exclude', [], 'exclude sparse pattern')) extensions.wrapcommand(commands.table, 'clone', _clonesparsecmd) def _setupadd(ui): entry = commands.table['^add'] entry[1].append(('s', 'sparse', None, 'also include directories of added files in sparse config')) def _add(orig, ui, repo, *pats, **opts): if opts.get('sparse'): dirs = set() for pat in pats: dirname, basename = util.split(pat) dirs.add(dirname) _config(ui, repo, list(dirs), opts, include=True) return orig(ui, repo, *pats, **opts) extensions.wrapcommand(commands.table, 'add', _add) def _setupdirstate(ui): """Modify the dirstate to prevent stat'ing excluded files, and to prevent modifications to files outside the checkout. """ def _dirstate(orig, repo): dirstate = orig(repo) dirstate.repo = repo return dirstate extensions.wrapfunction( localrepo.localrepository.dirstate, 'func', _dirstate) # The atrocity below is needed to wrap dirstate._ignore. It is a cached # property, which means normal function wrapping doesn't work. class ignorewrapper(object): def __init__(self, orig): self.orig = orig self.origignore = None self.func = None self.sparsematch = None def __get__(self, obj, type=None): repo = obj.repo origignore = self.orig.__get__(obj) if not util.safehasattr(repo, 'sparsematch'): return origignore sparsematch = repo.sparsematch() if self.sparsematch != sparsematch or self.origignore != origignore: self.func = unionmatcher([origignore, negatematcher(sparsematch)]) self.sparsematch = sparsematch self.origignore = origignore return self.func def __set__(self, obj, value): return self.orig.__set__(obj, value) def __delete__(self, obj): return self.orig.__delete__(obj) replacefilecache(dirstate.dirstate, '_ignore', ignorewrapper) # dirstate.rebuild should not add non-matching files def _rebuild(orig, self, parent, allfiles, changedfiles=None): if util.safehasattr(self.repo, 'sparsematch'): matcher = self.repo.sparsematch() allfiles = allfiles.matches(matcher) if changedfiles: changedfiles = [f for f in changedfiles if matcher(f)] if changedfiles is not None: # In _rebuild, these files will be deleted from the dirstate # when they are not found to be in allfiles dirstatefilestoremove = set(f for f in self if not matcher(f)) changedfiles = dirstatefilestoremove.union(changedfiles) return orig(self, parent, allfiles, changedfiles) extensions.wrapfunction(dirstate.dirstate, 'rebuild', _rebuild) # Prevent adding files that are outside the sparse checkout editfuncs = ['normal', 'add', 'normallookup', 'copy', 'remove', 'merge'] hint = _('include file with `hg debugsparse --include <pattern>` or use ' + '`hg add -s <file>` to include file directory while adding') for func in editfuncs: def _wrapper(orig, self, *args): repo = self.repo if util.safehasattr(repo, 'sparsematch'): dirstate = repo.dirstate sparsematch = repo.sparsematch() for f in args: if (f is not None and not sparsematch(f) and f not in dirstate): raise error.Abort(_("cannot add '%s' - it is outside " "the sparse checkout") % f, hint=hint) return orig(self, *args) extensions.wrapfunction(dirstate.dirstate, func, _wrapper) def _wraprepo(ui, repo): class SparseRepo(repo.__class__): def getsparsepatterns(self, rev): """Returns the include/exclude patterns specified by the given rev. """ raw = self.vfs.tryread('sparse') if not raw: return set(), set(), [] if rev is None: raise error.Abort(_("cannot parse sparse patterns from " + "working copy")) includes, excludes, profiles = sparse.parseconfig(self.ui, raw) ctx = self[rev] if profiles: visited = set() while profiles: profile = profiles.pop() if profile in visited: continue visited.add(profile) try: raw = self.getrawprofile(profile, rev) except error.ManifestLookupError: msg = ( "warning: sparse profile '%s' not found " "in rev %s - ignoring it\n" % (profile, ctx)) if self.ui.configbool( 'sparse', 'missingwarning', True): self.ui.warn(msg) else: self.ui.debug(msg) continue pincludes, pexcludes, subprofs = sparse.parseconfig( self.ui, raw) includes.update(pincludes) excludes.update(pexcludes) for subprofile in subprofs: profiles.append(subprofile) profiles = visited if includes: includes.add('.hg*') return includes, excludes, profiles def getrawprofile(self, profile, changeid): # TODO add some kind of cache here because this incurs a manifest # resolve and can be slow. return self.filectx(profile, changeid=changeid).data() def _sparsechecksum(self, path): data = self.vfs.read(path) return hashlib.sha1(data).hexdigest() def _sparsesignature(self, includetemp=True): """Returns the signature string representing the contents of the current project sparse configuration. This can be used to cache the sparse matcher for a given set of revs.""" signaturecache = self.signaturecache signature = signaturecache.get('signature') if includetemp: tempsignature = signaturecache.get('tempsignature') else: tempsignature = 0 if signature is None or (includetemp and tempsignature is None): signature = 0 try: signature = self._sparsechecksum('sparse') except (OSError, IOError): pass signaturecache['signature'] = signature tempsignature = 0 if includetemp: try: tempsignature = self._sparsechecksum('tempsparse') except (OSError, IOError): pass signaturecache['tempsignature'] = tempsignature return '%s %s' % (str(signature), str(tempsignature)) def invalidatecaches(self): self.invalidatesignaturecache() return super(SparseRepo, self).invalidatecaches() def invalidatesignaturecache(self): self.signaturecache.clear() def sparsematch(self, *revs, **kwargs): """Returns the sparse match function for the given revs. If multiple revs are specified, the match function is the union of all the revs. `includetemp` is used to indicate if the temporarily included file should be part of the matcher. """ if not revs or revs == (None,): revs = [self.changelog.rev(node) for node in self.dirstate.parents() if node != nullid] includetemp = kwargs.get('includetemp', True) signature = self._sparsesignature(includetemp=includetemp) key = '%s %s' % (str(signature), ' '.join([str(r) for r in revs])) result = self.sparsecache.get(key, None) if result: return result matchers = [] for rev in revs: try: includes, excludes, profiles = self.getsparsepatterns(rev) if includes or excludes: # Explicitly include subdirectories of includes so # status will walk them down to the actual include. subdirs = set() for include in includes: dirname = os.path.dirname(include) # basename is used to avoid issues with absolute # paths (which on Windows can include the drive). while os.path.basename(dirname): subdirs.add(dirname) dirname = os.path.dirname(dirname) matcher = matchmod.match(self.root, '', [], include=includes, exclude=excludes, default='relpath') if subdirs: matcher = forceincludematcher(matcher, subdirs) matchers.append(matcher) except IOError: pass result = None if not matchers: result = matchmod.always(self.root, '') elif len(matchers) == 1: result = matchers[0] else: result = unionmatcher(matchers) if kwargs.get('includetemp', True): tempincludes = self.gettemporaryincludes() result = forceincludematcher(result, tempincludes) self.sparsecache[key] = result return result def getactiveprofiles(self): revs = [self.changelog.rev(node) for node in self.dirstate.parents() if node != nullid] activeprofiles = set() for rev in revs: _, _, profiles = self.getsparsepatterns(rev) activeprofiles.update(profiles) return activeprofiles def writesparseconfig(self, include, exclude, profiles): raw = '%s[include]\n%s\n[exclude]\n%s\n' % ( ''.join(['%%include %s\n' % p for p in sorted(profiles)]), '\n'.join(sorted(include)), '\n'.join(sorted(exclude))) self.vfs.write("sparse", raw) self.invalidatesignaturecache() def addtemporaryincludes(self, files): includes = self.gettemporaryincludes() for file in files: includes.add(file) self._writetemporaryincludes(includes) def gettemporaryincludes(self): existingtemp = set() raw = self.vfs.tryread('tempsparse') if raw: existingtemp.update(raw.split('\n')) return existingtemp def _writetemporaryincludes(self, includes): raw = '\n'.join(sorted(includes)) self.vfs.write('tempsparse', raw) self.invalidatesignaturecache() def prunetemporaryincludes(self): if repo.vfs.exists('tempsparse'): origstatus = self.status() modified, added, removed, deleted, a, b, c = origstatus if modified or added or removed or deleted: # Still have pending changes. Don't bother trying to prune. return sparsematch = self.sparsematch(includetemp=False) dirstate = self.dirstate actions = [] dropped = [] tempincludes = self.gettemporaryincludes() for file in tempincludes: if file in dirstate and not sparsematch(file): message = 'dropping temporarily included sparse files' actions.append((file, None, message)) dropped.append(file) typeactions = collections.defaultdict(list) typeactions['r'] = actions mergemod.applyupdates(self, typeactions, self[None], self['.'], False) # Fix dirstate for file in dropped: dirstate.drop(file) self.vfs.unlink('tempsparse') self.invalidatesignaturecache() msg = _("cleaned up %d temporarily added file(s) from the " "sparse checkout\n") ui.status(msg % len(tempincludes)) if 'dirstate' in repo._filecache: repo.dirstate.repo = repo repo.sparsecache = {} repo.signaturecache = {} repo.__class__ = SparseRepo @command('^debugsparse', [ ('I', 'include', False, _('include files in the sparse checkout')), ('X', 'exclude', False, _('exclude files in the sparse checkout')), ('d', 'delete', False, _('delete an include/exclude rule')), ('f', 'force', False, _('allow changing rules even with pending changes')), ('', 'enable-profile', False, _('enables the specified profile')), ('', 'disable-profile', False, _('disables the specified profile')), ('', 'import-rules', False, _('imports rules from a file')), ('', 'clear-rules', False, _('clears local include/exclude rules')), ('', 'refresh', False, _('updates the working after sparseness changes')), ('', 'reset', False, _('makes the repo full again')), ] + commands.templateopts, _('[--OPTION] PATTERN...')) def debugsparse(ui, repo, *pats, **opts): """make the current checkout sparse, or edit the existing checkout The sparse command is used to make the current checkout sparse. This means files that don't meet the sparse condition will not be written to disk, or show up in any working copy operations. It does not affect files in history in any way. Passing no arguments prints the currently applied sparse rules. --include and --exclude are used to add and remove files from the sparse checkout. The effects of adding an include or exclude rule are applied immediately. If applying the new rule would cause a file with pending changes to be added or removed, the command will fail. Pass --force to force a rule change even with pending changes (the changes on disk will be preserved). --delete removes an existing include/exclude rule. The effects are immediate. --refresh refreshes the files on disk based on the sparse rules. This is only necessary if .hg/sparse was changed by hand. --enable-profile and --disable-profile accept a path to a .hgsparse file. This allows defining sparse checkouts and tracking them inside the repository. This is useful for defining commonly used sparse checkouts for many people to use. As the profile definition changes over time, the sparse checkout will automatically be updated appropriately, depending on which changeset is checked out. Changes to .hgsparse are not applied until they have been committed. --import-rules accepts a path to a file containing rules in the .hgsparse format, allowing you to add --include, --exclude and --enable-profile rules in bulk. Like the --include, --exclude and --enable-profile switches, the changes are applied immediately. --clear-rules removes all local include and exclude rules, while leaving any enabled profiles in place. Returns 0 if editing the sparse checkout succeeds. """ include = opts.get('include') exclude = opts.get('exclude') force = opts.get('force') enableprofile = opts.get('enable_profile') disableprofile = opts.get('disable_profile') importrules = opts.get('import_rules') clearrules = opts.get('clear_rules') delete = opts.get('delete') refresh = opts.get('refresh') reset = opts.get('reset') count = sum([include, exclude, enableprofile, disableprofile, delete, importrules, refresh, clearrules, reset]) if count > 1: raise error.Abort(_("too many flags specified")) if count == 0: if repo.vfs.exists('sparse'): ui.status(repo.vfs.read("sparse") + "\n") temporaryincludes = repo.gettemporaryincludes() if temporaryincludes: ui.status(_("Temporarily Included Files (for merge/rebase):\n")) ui.status(("\n".join(temporaryincludes) + "\n")) else: ui.status(_('repo is not sparse\n')) return if include or exclude or delete or reset or enableprofile or disableprofile: _config(ui, repo, pats, opts, include=include, exclude=exclude, reset=reset, delete=delete, enableprofile=enableprofile, disableprofile=disableprofile, force=force) if importrules: _import(ui, repo, pats, opts, force=force) if clearrules: _clear(ui, repo, pats, force=force) if refresh: try: wlock = repo.wlock() fcounts = map( len, _refresh(ui, repo, repo.status(), repo.sparsematch(), force)) _verbose_output(ui, opts, 0, 0, 0, *fcounts) finally: wlock.release() def _config(ui, repo, pats, opts, include=False, exclude=False, reset=False, delete=False, enableprofile=False, disableprofile=False, force=False): """ Perform a sparse config update. Only one of the kwargs may be specified. """ wlock = repo.wlock() try: oldsparsematch = repo.sparsematch() raw = repo.vfs.tryread('sparse') if raw: oldinclude, oldexclude, oldprofiles = map( set, sparse.parseconfig(ui, raw)) else: oldinclude = set() oldexclude = set() oldprofiles = set() try: if reset: newinclude = set() newexclude = set() newprofiles = set() else: newinclude = set(oldinclude) newexclude = set(oldexclude) newprofiles = set(oldprofiles) oldstatus = repo.status() if any(pat.startswith('/') for pat in pats): ui.warn(_('warning: paths cannot start with /, ignoring: %s\n') % ([pat for pat in pats if pat.startswith('/')])) elif 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) repo.writesparseconfig(newinclude, newexclude, newprofiles) fcounts = map( len, _refresh(ui, repo, oldstatus, oldsparsematch, force)) profilecount = (len(newprofiles - oldprofiles) - len(oldprofiles - newprofiles)) includecount = (len(newinclude - oldinclude) - len(oldinclude - newinclude)) excludecount = (len(newexclude - oldexclude) - len(oldexclude - newexclude)) _verbose_output( ui, opts, profilecount, includecount, excludecount, *fcounts) except Exception: repo.writesparseconfig(oldinclude, oldexclude, oldprofiles) raise finally: wlock.release() def _import(ui, repo, files, opts, force=False): with repo.wlock(): # load union of current active profile revs = [repo.changelog.rev(node) for node in repo.dirstate.parents() if node != nullid] # read current configuration raw = repo.vfs.tryread('sparse') oincludes, oexcludes, oprofiles = sparse.parseconfig(ui, raw) includes, excludes, profiles = map( set, (oincludes, oexcludes, oprofiles)) # all active rules aincludes, aexcludes, aprofiles = set(), set(), set() for rev in revs: rincludes, rexcludes, rprofiles = repo.getsparsepatterns(rev) aincludes.update(rincludes) aexcludes.update(rexcludes) aprofiles.update(rprofiles) # import rules on top; only take in rules that are not yet # part of the active rules. changed = False for file in files: with util.posixfile(util.expandpath(file)) as importfile: iincludes, iexcludes, iprofiles = sparse.parseconfig( ui, importfile.read()) oldsize = len(includes) + len(excludes) + len(profiles) includes.update(iincludes - aincludes) excludes.update(iexcludes - aexcludes) profiles.update(set(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) oldstatus = repo.status() oldsparsematch = repo.sparsematch() repo.writesparseconfig(includes, excludes, profiles) try: fcounts = map( len, _refresh(ui, repo, oldstatus, oldsparsematch, force)) except Exception: repo.writesparseconfig(oincludes, oexcludes, oprofiles) raise _verbose_output(ui, opts, profilecount, includecount, excludecount, *fcounts) def _clear(ui, repo, files, force=False): with repo.wlock(): raw = repo.vfs.tryread('sparse') includes, excludes, profiles = sparse.parseconfig(ui, raw) if includes or excludes: oldstatus = repo.status() oldsparsematch = repo.sparsematch() repo.writesparseconfig(set(), set(), profiles) _refresh(ui, repo, oldstatus, oldsparsematch, force) def _refresh(ui, repo, origstatus, origsparsematch, force): """Refreshes which files are on disk by comparing the old status and sparsematch with the new sparsematch. Will raise an exception if a file with pending changes is being excluded or included (unless force=True). """ modified, added, removed, deleted, unknown, ignored, clean = origstatus # Verify there are no pending changes pending = set() pending.update(modified) pending.update(added) pending.update(removed) sparsematch = repo.sparsematch() abort = False for file in pending: if not sparsematch(file): ui.warn(_("pending changes to '%s'\n") % file) abort = not force if abort: raise error.Abort(_("could not update sparseness due to " + "pending changes")) # Calculate actions dirstate = repo.dirstate ctx = repo['.'] added = [] lookup = [] dropped = [] mf = ctx.manifest() files = set(mf) actions = {} for file in files: old = origsparsematch(file) new = sparsematch(file) # Add files that are newly included, or that don't exist in # the dirstate yet. if (new and not old) or (old and new and not file in dirstate): fl = mf.flags(file) if repo.wvfs.exists(file): actions[file] = ('e', (fl,), '') lookup.append(file) else: actions[file] = ('g', (fl, False), '') added.append(file) # Drop files that are newly excluded, or that still exist in # the dirstate. elif (old and not new) or (not old and not new and file in dirstate): dropped.append(file) if file not in pending: actions[file] = ('r', [], '') # Verify there are no pending changes in newly included files abort = False for file in lookup: ui.warn(_("pending changes to '%s'\n") % file) abort = not force if abort: raise error.Abort(_("cannot change sparseness due to " + "pending changes (delete the files or use --force " + "to bring them back dirty)")) # Check for files that were only in the dirstate. for file, state in dirstate.iteritems(): if not file in files: old = origsparsematch(file) new = sparsematch(file) if old and not new: dropped.append(file) # Apply changes to disk typeactions = dict((m, []) for m in 'a f g am cd dc r dm dg m e k'.split()) for f, (m, args, msg) in actions.iteritems(): if m not in typeactions: typeactions[m] = [] typeactions[m].append((f, args, msg)) mergemod.applyupdates(repo, typeactions, repo[None], repo['.'], False) # Fix dirstate for file in added: dirstate.normal(file) for file in dropped: dirstate.drop(file) for file in lookup: # File exists on disk, and we're bringing it back in an unknown state. dirstate.normallookup(file) return added, dropped, lookup def _verbose_output(ui, opts, profilecount, includecount, excludecount, added, dropped, lookup): """Produce --verbose and templatable output This specifically enables -Tjson, providing machine-readable stats on how the sparse profile changed. """ with ui.formatter('sparse', opts) as fm: fm.startitem() fm.condwrite(ui.verbose, 'profiles_added', 'Profile # change: %d\n', profilecount) fm.condwrite(ui.verbose, 'include_rules_added', 'Include rule # change: %d\n', includecount) fm.condwrite(ui.verbose, 'exclude_rules_added', 'Exclude rule # change: %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', lookup) class forceincludematcher(object): """A matcher that returns true for any of the forced includes before testing against the actual matcher.""" def __init__(self, matcher, includes): self._matcher = matcher self._includes = includes def __call__(self, value): return value in self._includes or self._matcher(value) def always(self): return False def files(self): return [] def isexact(self): return False def anypats(self): return True def prefix(self): return False def hash(self): sha1 = hashlib.sha1() sha1.update(_hashmatcher(self._matcher)) for include in sorted(self._includes): sha1.update(include + '\0') return sha1.hexdigest() class unionmatcher(object): """A matcher that is the union of several matchers.""" def __init__(self, matchers): self._matchers = matchers def __call__(self, value): for match in self._matchers: if match(value): return True return False def always(self): return False def files(self): return [] def isexact(self): return False def anypats(self): return True def prefix(self): return False def hash(self): sha1 = hashlib.sha1() for m in self._matchers: sha1.update(_hashmatcher(m)) return sha1.hexdigest() class negatematcher(object): def __init__(self, matcher): self._matcher = matcher def __call__(self, value): return not self._matcher(value) def always(self): return False def files(self): return [] def isexact(self): return False def anypats(self): return True def hash(self): sha1 = hashlib.sha1() sha1.update('negate') sha1.update(_hashmatcher(self._matcher)) return sha1.hexdigest() def _hashmatcher(matcher): if util.safehasattr(matcher, 'hash'): return matcher.hash() sha1 = hashlib.sha1() sha1.update(repr(matcher)) return sha1.hexdigest()