# localrepo.py - read/write repository class for mercurial # # Copyright 2005-2007 Matt Mackall # # This software may be used and distributed according to the terms of the # GNU General Public License version 2, incorporated herein by reference. from node import bin, hex, nullid, nullrev, short from i18n import _ import repo, changegroup, subrepo import changelog, dirstate, filelog, manifest, context import lock, transaction, store, encoding import util, extensions, hook, error import match as match_ import merge as merge_ import tags as tags_ from lock import release import weakref, stat, errno, os, time, inspect propertycache = util.propertycache class localrepository(repo.repository): capabilities = set(('lookup', 'changegroupsubset', 'branchmap')) supported = set('revlogv1 store fncache shared'.split()) def __init__(self, baseui, path=None, create=0): repo.repository.__init__(self) self.root = os.path.realpath(path) self.path = os.path.join(self.root, ".hg") self.origroot = path self.opener = util.opener(self.path) self.wopener = util.opener(self.root) self.baseui = baseui self.ui = baseui.copy() try: self.ui.readconfig(self.join("hgrc"), self.root) extensions.loadall(self.ui) except IOError: pass if not os.path.isdir(self.path): if create: if not os.path.exists(path): os.makedirs(path) os.mkdir(self.path) requirements = ["revlogv1"] if self.ui.configbool('format', 'usestore', True): os.mkdir(os.path.join(self.path, "store")) requirements.append("store") if self.ui.configbool('format', 'usefncache', True): requirements.append("fncache") # create an invalid changelog self.opener("00changelog.i", "a").write( '\0\0\0\2' # represents revlogv2 ' dummy changelog to prevent using the old repo layout' ) reqfile = self.opener("requires", "w") for r in requirements: reqfile.write("%s\n" % r) reqfile.close() else: raise error.RepoError(_("repository %s not found") % path) elif create: raise error.RepoError(_("repository %s already exists") % path) else: # find requirements requirements = set() try: requirements = set(self.opener("requires").read().splitlines()) except IOError, inst: if inst.errno != errno.ENOENT: raise for r in requirements - self.supported: raise error.RepoError(_("requirement '%s' not supported") % r) self.sharedpath = self.path try: s = os.path.realpath(self.opener("sharedpath").read()) if not os.path.exists(s): raise error.RepoError( _('.hg/sharedpath points to nonexistent directory %s') % s) self.sharedpath = s except IOError, inst: if inst.errno != errno.ENOENT: raise self.store = store.store(requirements, self.sharedpath, util.opener) self.spath = self.store.path self.sopener = self.store.opener self.sjoin = self.store.join self.opener.createmode = self.store.createmode # These two define the set of tags for this repository. _tags # maps tag name to node; _tagtypes maps tag name to 'global' or # 'local'. (Global tags are defined by .hgtags across all # heads, and local tags are defined in .hg/localtags.) They # constitute the in-memory cache of tags. self._tags = None self._tagtypes = None self.branchcache = None self._ubranchcache = None # UTF-8 version of branchcache self._branchcachetip = None self.nodetagscache = None self.filterpats = {} self._datafilters = {} self._transref = self._lockref = self._wlockref = None @propertycache def changelog(self): c = changelog.changelog(self.sopener) if 'HG_PENDING' in os.environ: p = os.environ['HG_PENDING'] if p.startswith(self.root): c.readpending('00changelog.i.a') self.sopener.defversion = c.version return c @propertycache def manifest(self): return manifest.manifest(self.sopener) @propertycache def dirstate(self): return dirstate.dirstate(self.opener, self.ui, self.root) def __getitem__(self, changeid): if changeid is None: return context.workingctx(self) return context.changectx(self, changeid) def __nonzero__(self): return True def __len__(self): return len(self.changelog) def __iter__(self): for i in xrange(len(self)): yield i def url(self): return 'file:' + self.root def hook(self, name, throw=False, **args): return hook.hook(self.ui, self, name, throw, **args) tag_disallowed = ':\r\n' def _tag(self, names, node, message, local, user, date, extra={}): if isinstance(names, str): allchars = names names = (names,) else: allchars = ''.join(names) for c in self.tag_disallowed: if c in allchars: raise util.Abort(_('%r cannot be used in a tag name') % c) for name in names: self.hook('pretag', throw=True, node=hex(node), tag=name, local=local) def writetags(fp, names, munge, prevtags): fp.seek(0, 2) if prevtags and prevtags[-1] != '\n': fp.write('\n') for name in names: m = munge and munge(name) or name if self._tagtypes and name in self._tagtypes: old = self._tags.get(name, nullid) fp.write('%s %s\n' % (hex(old), m)) fp.write('%s %s\n' % (hex(node), m)) fp.close() prevtags = '' if local: try: fp = self.opener('localtags', 'r+') except IOError: fp = self.opener('localtags', 'a') else: prevtags = fp.read() # local tags are stored in the current charset writetags(fp, names, None, prevtags) for name in names: self.hook('tag', node=hex(node), tag=name, local=local) return try: fp = self.wfile('.hgtags', 'rb+') except IOError: fp = self.wfile('.hgtags', 'ab') else: prevtags = fp.read() # committed tags are stored in UTF-8 writetags(fp, names, encoding.fromlocal, prevtags) if '.hgtags' not in self.dirstate: self.add(['.hgtags']) m = match_.exact(self.root, '', ['.hgtags']) tagnode = self.commit(message, user, date, extra=extra, match=m) for name in names: self.hook('tag', node=hex(node), tag=name, local=local) return tagnode def tag(self, names, node, message, local, user, date): '''tag a revision with one or more symbolic names. names is a list of strings or, when adding a single tag, names may be a string. if local is True, the tags are stored in a per-repository file. otherwise, they are stored in the .hgtags file, and a new changeset is committed with the change. keyword arguments: local: whether to store tags in non-version-controlled file (default False) message: commit message to use if committing user: name of user to use if committing date: date tuple to use if committing''' for x in self.status()[:5]: if '.hgtags' in x: raise util.Abort(_('working copy of .hgtags is changed ' '(please commit .hgtags manually)')) self.tags() # instantiate the cache self._tag(names, node, message, local, user, date) def tags(self): '''return a mapping of tag to node''' if self._tags is None: (self._tags, self._tagtypes) = self._findtags() return self._tags def _findtags(self): '''Do the hard work of finding tags. Return a pair of dicts (tags, tagtypes) where tags maps tag name to node, and tagtypes maps tag name to a string like \'global\' or \'local\'. Subclasses or extensions are free to add their own tags, but should be aware that the returned dicts will be retained for the duration of the localrepo object.''' # XXX what tagtype should subclasses/extensions use? Currently # mq and bookmarks add tags, but do not set the tagtype at all. # Should each extension invent its own tag type? Should there # be one tagtype for all such "virtual" tags? Or is the status # quo fine? alltags = {} # map tag name to (node, hist) tagtypes = {} tags_.findglobaltags(self.ui, self, alltags, tagtypes) tags_.readlocaltags(self.ui, self, alltags, tagtypes) # Build the return dicts. Have to re-encode tag names because # the tags module always uses UTF-8 (in order not to lose info # writing to the cache), but the rest of Mercurial wants them in # local encoding. tags = {} for (name, (node, hist)) in alltags.iteritems(): if node != nullid: tags[encoding.tolocal(name)] = node tags['tip'] = self.changelog.tip() tagtypes = dict([(encoding.tolocal(name), value) for (name, value) in tagtypes.iteritems()]) return (tags, tagtypes) def tagtype(self, tagname): ''' return the type of the given tag. result can be: 'local' : a local tag 'global' : a global tag None : tag does not exist ''' self.tags() return self._tagtypes.get(tagname) def tagslist(self): '''return a list of tags ordered by revision''' l = [] for t, n in self.tags().iteritems(): try: r = self.changelog.rev(n) except: r = -2 # sort to the beginning of the list if unknown l.append((r, t, n)) return [(t, n) for r, t, n in sorted(l)] def nodetags(self, node): '''return the tags associated with a node''' if not self.nodetagscache: self.nodetagscache = {} for t, n in self.tags().iteritems(): self.nodetagscache.setdefault(n, []).append(t) return self.nodetagscache.get(node, []) def _branchtags(self, partial, lrev): # TODO: rename this function? tiprev = len(self) - 1 if lrev != tiprev: self._updatebranchcache(partial, lrev+1, tiprev+1) self._writebranchcache(partial, self.changelog.tip(), tiprev) return partial def branchmap(self): tip = self.changelog.tip() if self.branchcache is not None and self._branchcachetip == tip: return self.branchcache oldtip = self._branchcachetip self._branchcachetip = tip if self.branchcache is None: self.branchcache = {} # avoid recursion in changectx else: self.branchcache.clear() # keep using the same dict if oldtip is None or oldtip not in self.changelog.nodemap: partial, last, lrev = self._readbranchcache() else: lrev = self.changelog.rev(oldtip) partial = self._ubranchcache self._branchtags(partial, lrev) # this private cache holds all heads (not just tips) self._ubranchcache = partial # the branch cache is stored on disk as UTF-8, but in the local # charset internally for k, v in partial.iteritems(): self.branchcache[encoding.tolocal(k)] = v return self.branchcache def branchtags(self): '''return a dict where branch names map to the tipmost head of the branch, open heads come before closed''' bt = {} for bn, heads in self.branchmap().iteritems(): head = None for i in range(len(heads)-1, -1, -1): h = heads[i] if 'close' not in self.changelog.read(h)[5]: head = h break # no open heads were found if head is None: head = heads[-1] bt[bn] = head return bt def _readbranchcache(self): partial = {} try: f = self.opener("branchheads.cache") lines = f.read().split('\n') f.close() except (IOError, OSError): return {}, nullid, nullrev try: last, lrev = lines.pop(0).split(" ", 1) last, lrev = bin(last), int(lrev) if lrev >= len(self) or self[lrev].node() != last: # invalidate the cache raise ValueError('invalidating branch cache (tip differs)') for l in lines: if not l: continue node, label = l.split(" ", 1) partial.setdefault(label.strip(), []).append(bin(node)) except KeyboardInterrupt: raise except Exception, inst: if self.ui.debugflag: self.ui.warn(str(inst), '\n') partial, last, lrev = {}, nullid, nullrev return partial, last, lrev def _writebranchcache(self, branches, tip, tiprev): try: f = self.opener("branchheads.cache", "w", atomictemp=True) f.write("%s %s\n" % (hex(tip), tiprev)) for label, nodes in branches.iteritems(): for node in nodes: f.write("%s %s\n" % (hex(node), label)) f.rename() except (IOError, OSError): pass def _updatebranchcache(self, partial, start, end): # collect new branch entries newbranches = {} for r in xrange(start, end): c = self[r] newbranches.setdefault(c.branch(), []).append(c.node()) # if older branchheads are reachable from new ones, they aren't # really branchheads. Note checking parents is insufficient: # 1 (branch a) -> 2 (branch b) -> 3 (branch a) for branch, newnodes in newbranches.iteritems(): bheads = partial.setdefault(branch, []) bheads.extend(newnodes) if len(bheads) < 2: continue newbheads = [] # starting from tip means fewer passes over reachable while newnodes: latest = newnodes.pop() if latest not in bheads: continue minbhrev = self[min([self[bh].rev() for bh in bheads])].node() reachable = self.changelog.reachable(latest, minbhrev) bheads = [b for b in bheads if b not in reachable] newbheads.insert(0, latest) bheads.extend(newbheads) partial[branch] = bheads def lookup(self, key): if isinstance(key, int): return self.changelog.node(key) elif key == '.': return self.dirstate.parents()[0] elif key == 'null': return nullid elif key == 'tip': return self.changelog.tip() n = self.changelog._match(key) if n: return n if key in self.tags(): return self.tags()[key] if key in self.branchtags(): return self.branchtags()[key] n = self.changelog._partialmatch(key) if n: return n # can't find key, check if it might have come from damaged dirstate if key in self.dirstate.parents(): raise error.Abort(_("working directory has unknown parent '%s'!") % short(key)) try: if len(key) == 20: key = hex(key) except: pass raise error.RepoError(_("unknown revision '%s'") % key) def local(self): return True def join(self, f): return os.path.join(self.path, f) def wjoin(self, f): return os.path.join(self.root, f) def rjoin(self, f): return os.path.join(self.root, util.pconvert(f)) def file(self, f): if f[0] == '/': f = f[1:] return filelog.filelog(self.sopener, f) def changectx(self, changeid): return self[changeid] def parents(self, changeid=None): '''get list of changectxs for parents of changeid''' return self[changeid].parents() def filectx(self, path, changeid=None, fileid=None): """changeid can be a changeset revision, node, or tag. fileid can be a file revision or node.""" return context.filectx(self, path, changeid, fileid) def getcwd(self): return self.dirstate.getcwd() def pathto(self, f, cwd=None): return self.dirstate.pathto(f, cwd) def wfile(self, f, mode='r'): return self.wopener(f, mode) def _link(self, f): return os.path.islink(self.wjoin(f)) def _filter(self, filter, filename, data): if filter not in self.filterpats: l = [] for pat, cmd in self.ui.configitems(filter): if cmd == '!': continue mf = match_.match(self.root, '', [pat]) fn = None params = cmd for name, filterfn in self._datafilters.iteritems(): if cmd.startswith(name): fn = filterfn params = cmd[len(name):].lstrip() break if not fn: fn = lambda s, c, **kwargs: util.filter(s, c) # Wrap old filters not supporting keyword arguments if not inspect.getargspec(fn)[2]: oldfn = fn fn = lambda s, c, **kwargs: oldfn(s, c) l.append((mf, fn, params)) self.filterpats[filter] = l for mf, fn, cmd in self.filterpats[filter]: if mf(filename): self.ui.debug(_("filtering %s through %s\n") % (filename, cmd)) data = fn(data, cmd, ui=self.ui, repo=self, filename=filename) break return data def adddatafilter(self, name, filter): self._datafilters[name] = filter def wread(self, filename): if self._link(filename): data = os.readlink(self.wjoin(filename)) else: data = self.wopener(filename, 'r').read() return self._filter("encode", filename, data) def wwrite(self, filename, data, flags): data = self._filter("decode", filename, data) try: os.unlink(self.wjoin(filename)) except OSError: pass if 'l' in flags: self.wopener.symlink(data, filename) else: self.wopener(filename, 'w').write(data) if 'x' in flags: util.set_flags(self.wjoin(filename), False, True) def wwritedata(self, filename, data): return self._filter("decode", filename, data) def transaction(self): tr = self._transref and self._transref() or None if tr and tr.running(): return tr.nest() # abort here if the journal already exists if os.path.exists(self.sjoin("journal")): raise error.RepoError(_("journal already exists - run hg recover")) # save dirstate for rollback try: ds = self.opener("dirstate").read() except IOError: ds = "" self.opener("journal.dirstate", "w").write(ds) self.opener("journal.branch", "w").write(self.dirstate.branch()) renames = [(self.sjoin("journal"), self.sjoin("undo")), (self.join("journal.dirstate"), self.join("undo.dirstate")), (self.join("journal.branch"), self.join("undo.branch"))] tr = transaction.transaction(self.ui.warn, self.sopener, self.sjoin("journal"), aftertrans(renames), self.store.createmode) self._transref = weakref.ref(tr) return tr def recover(self): lock = self.lock() try: if os.path.exists(self.sjoin("journal")): self.ui.status(_("rolling back interrupted transaction\n")) transaction.rollback(self.sopener, self.sjoin("journal"), self.ui.warn) self.invalidate() return True else: self.ui.warn(_("no interrupted transaction available\n")) return False finally: lock.release() def rollback(self): wlock = lock = None try: wlock = self.wlock() lock = self.lock() if os.path.exists(self.sjoin("undo")): self.ui.status(_("rolling back last transaction\n")) transaction.rollback(self.sopener, self.sjoin("undo"), self.ui.warn) util.rename(self.join("undo.dirstate"), self.join("dirstate")) try: branch = self.opener("undo.branch").read() self.dirstate.setbranch(branch) except IOError: self.ui.warn(_("Named branch could not be reset, " "current branch still is: %s\n") % encoding.tolocal(self.dirstate.branch())) self.invalidate() self.dirstate.invalidate() self.destroyed() else: self.ui.warn(_("no rollback information available\n")) finally: release(lock, wlock) def invalidate(self): for a in "changelog manifest".split(): if a in self.__dict__: delattr(self, a) self._tags = None self._tagtypes = None self.nodetagscache = None self.branchcache = None self._ubranchcache = None self._branchcachetip = None def _lock(self, lockname, wait, releasefn, acquirefn, desc): try: l = lock.lock(lockname, 0, releasefn, desc=desc) except error.LockHeld, inst: if not wait: raise self.ui.warn(_("waiting for lock on %s held by %r\n") % (desc, inst.locker)) # default to 600 seconds timeout l = lock.lock(lockname, int(self.ui.config("ui", "timeout", "600")), releasefn, desc=desc) if acquirefn: acquirefn() return l def lock(self, wait=True): '''Lock the repository store (.hg/store) and return a weak reference to the lock. Use this before modifying the store (e.g. committing or stripping). If you are opening a transaction, get a lock as well.)''' l = self._lockref and self._lockref() if l is not None and l.held: l.lock() return l l = self._lock(self.sjoin("lock"), wait, None, self.invalidate, _('repository %s') % self.origroot) self._lockref = weakref.ref(l) return l def wlock(self, wait=True): '''Lock the non-store parts of the repository (everything under .hg except .hg/store) and return a weak reference to the lock. Use this before modifying files in .hg.''' l = self._wlockref and self._wlockref() if l is not None and l.held: l.lock() return l l = self._lock(self.join("wlock"), wait, self.dirstate.write, self.dirstate.invalidate, _('working directory of %s') % self.origroot) self._wlockref = weakref.ref(l) return l def _filecommit(self, fctx, manifest1, manifest2, linkrev, tr, changelist): """ commit an individual file as part of a larger transaction """ fname = fctx.path() text = fctx.data() flog = self.file(fname) fparent1 = manifest1.get(fname, nullid) fparent2 = fparent2o = manifest2.get(fname, nullid) meta = {} copy = fctx.renamed() if copy and copy[0] != fname: # Mark the new revision of this file as a copy of another # file. This copy data will effectively act as a parent # of this new revision. If this is a merge, the first # parent will be the nullid (meaning "look up the copy data") # and the second one will be the other parent. For example: # # 0 --- 1 --- 3 rev1 changes file foo # \ / rev2 renames foo to bar and changes it # \- 2 -/ rev3 should have bar with all changes and # should record that bar descends from # bar in rev2 and foo in rev1 # # this allows this merge to succeed: # # 0 --- 1 --- 3 rev4 reverts the content change from rev2 # \ / merging rev3 and rev4 should use bar@rev2 # \- 2 --- 4 as the merge base # cfname = copy[0] crev = manifest1.get(cfname) newfparent = fparent2 if manifest2: # branch merge if fparent2 == nullid or crev is None: # copied on remote side if cfname in manifest2: crev = manifest2[cfname] newfparent = fparent1 # find source in nearest ancestor if we've lost track if not crev: self.ui.debug(_(" %s: searching for copy revision for %s\n") % (fname, cfname)) for ancestor in self['.'].ancestors(): if cfname in ancestor: crev = ancestor[cfname].filenode() break self.ui.debug(_(" %s: copy %s:%s\n") % (fname, cfname, hex(crev))) meta["copy"] = cfname meta["copyrev"] = hex(crev) fparent1, fparent2 = nullid, newfparent elif fparent2 != nullid: # is one parent an ancestor of the other? fparentancestor = flog.ancestor(fparent1, fparent2) if fparentancestor == fparent1: fparent1, fparent2 = fparent2, nullid elif fparentancestor == fparent2: fparent2 = nullid # is the file changed? if fparent2 != nullid or flog.cmp(fparent1, text) or meta: changelist.append(fname) return flog.add(text, meta, tr, linkrev, fparent1, fparent2) # are just the flags changed during merge? if fparent1 != fparent2o and manifest1.flags(fname) != fctx.flags(): changelist.append(fname) return fparent1 def commit(self, text="", user=None, date=None, match=None, force=False, editor=False, extra={}): """Add a new revision to current repository. Revision information is gathered from the working directory, match can be used to filter the committed files. If editor is supplied, it is called to get a commit message. """ def fail(f, msg): raise util.Abort('%s: %s' % (f, msg)) if not match: match = match_.always(self.root, '') if not force: vdirs = [] match.dir = vdirs.append match.bad = fail wlock = self.wlock() try: p1, p2 = self.dirstate.parents() wctx = self[None] if (not force and p2 != nullid and match and (match.files() or match.anypats())): raise util.Abort(_('cannot partially commit a merge ' '(do not specify files or patterns)')) changes = self.status(match=match, clean=force) if force: changes[0].extend(changes[6]) # mq may commit unchanged files # check subrepos subs = [] for s in wctx.substate: if match(s) and wctx.sub(s).dirty(): subs.append(s) if subs and '.hgsubstate' not in changes[0]: changes[0].insert(0, '.hgsubstate') # make sure all explicit patterns are matched if not force and match.files(): matched = set(changes[0] + changes[1] + changes[2]) for f in match.files(): if f == '.' or f in matched or f in wctx.substate: continue if f in changes[3]: # missing fail(f, _('file not found!')) if f in vdirs: # visited directory d = f + '/' for mf in matched: if mf.startswith(d): break else: fail(f, _("no match under directory!")) elif f not in self.dirstate: fail(f, _("file not tracked!")) if (not force and not extra.get("close") and p2 == nullid and not (changes[0] or changes[1] or changes[2]) and self[None].branch() == self['.'].branch()): return None ms = merge_.mergestate(self) for f in changes[0]: if f in ms and ms[f] == 'u': raise util.Abort(_("unresolved merge conflicts " "(see hg resolve)")) cctx = context.workingctx(self, (p1, p2), text, user, date, extra, changes) if editor: cctx._text = editor(self, cctx, subs) # commit subs if subs: state = wctx.substate.copy() for s in subs: self.ui.status(_('committing subrepository %s\n') % s) sr = wctx.sub(s).commit(cctx._text, user, date) state[s] = (state[s][0], sr) subrepo.writestate(self, state) ret = self.commitctx(cctx, True) # update dirstate and mergestate for f in changes[0] + changes[1]: self.dirstate.normal(f) for f in changes[2]: self.dirstate.forget(f) self.dirstate.setparents(ret) ms.reset() return ret finally: wlock.release() def commitctx(self, ctx, error=False): """Add a new revision to current repository. Revision information is passed via the context argument. """ tr = lock = None removed = ctx.removed() p1, p2 = ctx.p1(), ctx.p2() m1 = p1.manifest().copy() m2 = p2.manifest() user = ctx.user() xp1, xp2 = p1.hex(), p2 and p2.hex() or '' self.hook("precommit", throw=True, parent1=xp1, parent2=xp2) lock = self.lock() try: tr = self.transaction() trp = weakref.proxy(tr) # check in files new = {} changed = [] linkrev = len(self) for f in sorted(ctx.modified() + ctx.added()): self.ui.note(f + "\n") try: fctx = ctx[f] new[f] = self._filecommit(fctx, m1, m2, linkrev, trp, changed) m1.set(f, fctx.flags()) except (OSError, IOError): if error: self.ui.warn(_("trouble committing %s!\n") % f) raise else: removed.append(f) # update manifest m1.update(new) removed = [f for f in sorted(removed) if f in m1 or f in m2] drop = [f for f in removed if f in m1] for f in drop: del m1[f] mn = self.manifest.add(m1, trp, linkrev, p1.manifestnode(), p2.manifestnode(), (new, drop)) # update changelog self.changelog.delayupdate() n = self.changelog.add(mn, changed + removed, ctx.description(), trp, p1.node(), p2.node(), user, ctx.date(), ctx.extra().copy()) p = lambda: self.changelog.writepending() and self.root or "" self.hook('pretxncommit', throw=True, node=hex(n), parent1=xp1, parent2=xp2, pending=p) self.changelog.finalize(trp) tr.close() if self.branchcache: self.branchtags() self.hook("commit", node=hex(n), parent1=xp1, parent2=xp2) return n finally: del tr lock.release() def destroyed(self): '''Inform the repository that nodes have been destroyed. Intended for use by strip and rollback, so there's a common place for anything that has to be done after destroying history.''' # XXX it might be nice if we could take the list of destroyed # nodes, but I don't see an easy way for rollback() to do that # Ensure the persistent tag cache is updated. Doing it now # means that the tag cache only has to worry about destroyed # heads immediately after a strip/rollback. That in turn # guarantees that "cachetip == currenttip" (comparing both rev # and node) always means no nodes have been added or destroyed. # XXX this is suboptimal when qrefresh'ing: we strip the current # head, refresh the tag cache, then immediately add a new head. # But I think doing it this way is necessary for the "instant # tag cache retrieval" case to work. tags_.findglobaltags(self.ui, self, {}, {}) def walk(self, match, node=None): ''' walk recursively through the directory tree or a given changeset, finding all files matched by the match function ''' return self[node].walk(match) def status(self, node1='.', node2=None, match=None, ignored=False, clean=False, unknown=False): """return status of files between two nodes or node and working directory If node1 is None, use the first dirstate parent instead. If node2 is None, compare node1 with working directory. """ def mfmatches(ctx): mf = ctx.manifest().copy() for fn in mf.keys(): if not match(fn): del mf[fn] return mf if isinstance(node1, context.changectx): ctx1 = node1 else: ctx1 = self[node1] if isinstance(node2, context.changectx): ctx2 = node2 else: ctx2 = self[node2] working = ctx2.rev() is None parentworking = working and ctx1 == self['.'] match = match or match_.always(self.root, self.getcwd()) listignored, listclean, listunknown = ignored, clean, unknown # load earliest manifest first for caching reasons if not working and ctx2.rev() < ctx1.rev(): ctx2.manifest() if not parentworking: def bad(f, msg): if f not in ctx1: self.ui.warn('%s: %s\n' % (self.dirstate.pathto(f), msg)) match.bad = bad if working: # we need to scan the working dir s = self.dirstate.status(match, listignored, listclean, listunknown) cmp, modified, added, removed, deleted, unknown, ignored, clean = s # check for any possibly clean files if parentworking and cmp: fixup = [] # do a full compare of any files that might have changed for f in sorted(cmp): if (f not in ctx1 or ctx2.flags(f) != ctx1.flags(f) or ctx1[f].cmp(ctx2[f].data())): modified.append(f) else: fixup.append(f) if listclean: clean += fixup # update dirstate for files that are actually clean if fixup: try: # updating the dirstate is optional # so we don't wait on the lock wlock = self.wlock(False) try: for f in fixup: self.dirstate.normal(f) finally: wlock.release() except error.LockError: pass if not parentworking: mf1 = mfmatches(ctx1) if working: # we are comparing working dir against non-parent # generate a pseudo-manifest for the working dir mf2 = mfmatches(self['.']) for f in cmp + modified + added: mf2[f] = None mf2.set(f, ctx2.flags(f)) for f in removed: if f in mf2: del mf2[f] else: # we are comparing two revisions deleted, unknown, ignored = [], [], [] mf2 = mfmatches(ctx2) modified, added, clean = [], [], [] for fn in mf2: if fn in mf1: if (mf1.flags(fn) != mf2.flags(fn) or (mf1[fn] != mf2[fn] and (mf2[fn] or ctx1[fn].cmp(ctx2[fn].data())))): modified.append(fn) elif listclean: clean.append(fn) del mf1[fn] else: added.append(fn) removed = mf1.keys() r = modified, added, removed, deleted, unknown, ignored, clean [l.sort() for l in r] return r def add(self, list): wlock = self.wlock() try: rejected = [] for f in list: p = self.wjoin(f) try: st = os.lstat(p) except: self.ui.warn(_("%s does not exist!\n") % f) rejected.append(f) continue if st.st_size > 10000000: self.ui.warn(_("%s: files over 10MB may cause memory and" " performance problems\n" "(use 'hg revert %s' to unadd the file)\n") % (f, f)) if not (stat.S_ISREG(st.st_mode) or stat.S_ISLNK(st.st_mode)): self.ui.warn(_("%s not added: only files and symlinks " "supported currently\n") % f) rejected.append(p) elif self.dirstate[f] in 'amn': self.ui.warn(_("%s already tracked!\n") % f) elif self.dirstate[f] == 'r': self.dirstate.normallookup(f) else: self.dirstate.add(f) return rejected finally: wlock.release() def forget(self, list): wlock = self.wlock() try: for f in list: if self.dirstate[f] != 'a': self.ui.warn(_("%s not added!\n") % f) else: self.dirstate.forget(f) finally: wlock.release() def remove(self, list, unlink=False): if unlink: for f in list: try: util.unlink(self.wjoin(f)) except OSError, inst: if inst.errno != errno.ENOENT: raise wlock = self.wlock() try: for f in list: if unlink and os.path.exists(self.wjoin(f)): self.ui.warn(_("%s still exists!\n") % f) elif self.dirstate[f] == 'a': self.dirstate.forget(f) elif f not in self.dirstate: self.ui.warn(_("%s not tracked!\n") % f) else: self.dirstate.remove(f) finally: wlock.release() def undelete(self, list): manifests = [self.manifest.read(self.changelog.read(p)[0]) for p in self.dirstate.parents() if p != nullid] wlock = self.wlock() try: for f in list: if self.dirstate[f] != 'r': self.ui.warn(_("%s not removed!\n") % f) else: m = f in manifests[0] and manifests[0] or manifests[1] t = self.file(f).read(m[f]) self.wwrite(f, t, m.flags(f)) self.dirstate.normal(f) finally: wlock.release() def copy(self, source, dest): p = self.wjoin(dest) if not (os.path.exists(p) or os.path.islink(p)): self.ui.warn(_("%s does not exist!\n") % dest) elif not (os.path.isfile(p) or os.path.islink(p)): self.ui.warn(_("copy failed: %s is not a file or a " "symbolic link\n") % dest) else: wlock = self.wlock() try: if self.dirstate[dest] in '?r': self.dirstate.add(dest) self.dirstate.copy(source, dest) finally: wlock.release() def heads(self, start=None): heads = self.changelog.heads(start) # sort the output in rev descending order heads = [(-self.changelog.rev(h), h) for h in heads] return [n for (r, n) in sorted(heads)] def branchheads(self, branch=None, start=None, closed=False): if branch is None: branch = self[None].branch() branches = self.branchmap() if branch not in branches: return [] bheads = branches[branch] # the cache returns heads ordered lowest to highest bheads.reverse() if start is not None: # filter out the heads that cannot be reached from startrev bheads = self.changelog.nodesbetween([start], bheads)[2] if not closed: bheads = [h for h in bheads if ('close' not in self.changelog.read(h)[5])] return bheads def branches(self, nodes): if not nodes: nodes = [self.changelog.tip()] b = [] for n in nodes: t = n while 1: p = self.changelog.parents(n) if p[1] != nullid or p[0] == nullid: b.append((t, n, p[0], p[1])) break n = p[0] return b def between(self, pairs): r = [] for top, bottom in pairs: n, l, i = top, [], 0 f = 1 while n != bottom and n != nullid: p = self.changelog.parents(n)[0] if i == f: l.append(n) f = f * 2 n = p i += 1 r.append(l) return r def findincoming(self, remote, base=None, heads=None, force=False): """Return list of roots of the subsets of missing nodes from remote If base dict is specified, assume that these nodes and their parents exist on the remote side and that no child of a node of base exists in both remote and self. Furthermore base will be updated to include the nodes that exists in self and remote but no children exists in self and remote. If a list of heads is specified, return only nodes which are heads or ancestors of these heads. All the ancestors of base are in self and in remote. All the descendants of the list returned are missing in self. (and so we know that the rest of the nodes are missing in remote, see outgoing) """ return self.findcommonincoming(remote, base, heads, force)[1] def findcommonincoming(self, remote, base=None, heads=None, force=False): """Return a tuple (common, missing roots, heads) used to identify missing nodes from remote. If base dict is specified, assume that these nodes and their parents exist on the remote side and that no child of a node of base exists in both remote and self. Furthermore base will be updated to include the nodes that exists in self and remote but no children exists in self and remote. If a list of heads is specified, return only nodes which are heads or ancestors of these heads. All the ancestors of base are in self and in remote. """ m = self.changelog.nodemap search = [] fetch = set() seen = set() seenbranch = set() if base is None: base = {} if not heads: heads = remote.heads() if self.changelog.tip() == nullid: base[nullid] = 1 if heads != [nullid]: return [nullid], [nullid], list(heads) return [nullid], [], [] # assume we're closer to the tip than the root # and start by examining the heads self.ui.status(_("searching for changes\n")) unknown = [] for h in heads: if h not in m: unknown.append(h) else: base[h] = 1 heads = unknown if not unknown: return base.keys(), [], [] req = set(unknown) reqcnt = 0 # search through remote branches # a 'branch' here is a linear segment of history, with four parts: # head, root, first parent, second parent # (a branch always has two parents (or none) by definition) unknown = remote.branches(unknown) while unknown: r = [] while unknown: n = unknown.pop(0) if n[0] in seen: continue self.ui.debug(_("examining %s:%s\n") % (short(n[0]), short(n[1]))) if n[0] == nullid: # found the end of the branch pass elif n in seenbranch: self.ui.debug(_("branch already found\n")) continue elif n[1] and n[1] in m: # do we know the base? self.ui.debug(_("found incomplete branch %s:%s\n") % (short(n[0]), short(n[1]))) search.append(n[0:2]) # schedule branch range for scanning seenbranch.add(n) else: if n[1] not in seen and n[1] not in fetch: if n[2] in m and n[3] in m: self.ui.debug(_("found new changeset %s\n") % short(n[1])) fetch.add(n[1]) # earliest unknown for p in n[2:4]: if p in m: base[p] = 1 # latest known for p in n[2:4]: if p not in req and p not in m: r.append(p) req.add(p) seen.add(n[0]) if r: reqcnt += 1 self.ui.debug(_("request %d: %s\n") % (reqcnt, " ".join(map(short, r)))) for p in xrange(0, len(r), 10): for b in remote.branches(r[p:p+10]): self.ui.debug(_("received %s:%s\n") % (short(b[0]), short(b[1]))) unknown.append(b) # do binary search on the branches we found while search: newsearch = [] reqcnt += 1 for n, l in zip(search, remote.between(search)): l.append(n[1]) p = n[0] f = 1 for i in l: self.ui.debug(_("narrowing %d:%d %s\n") % (f, len(l), short(i))) if i in m: if f <= 2: self.ui.debug(_("found new branch changeset %s\n") % short(p)) fetch.add(p) base[i] = 1 else: self.ui.debug(_("narrowed branch search to %s:%s\n") % (short(p), short(i))) newsearch.append((p, i)) break p, f = i, f * 2 search = newsearch # sanity check our fetch list for f in fetch: if f in m: raise error.RepoError(_("already have changeset ") + short(f[:4])) if base.keys() == [nullid]: if force: self.ui.warn(_("warning: repository is unrelated\n")) else: raise util.Abort(_("repository is unrelated")) self.ui.debug(_("found new changesets starting at ") + " ".join([short(f) for f in fetch]) + "\n") self.ui.debug(_("%d total queries\n") % reqcnt) return base.keys(), list(fetch), heads def findoutgoing(self, remote, base=None, heads=None, force=False): """Return list of nodes that are roots of subsets not in remote If base dict is specified, assume that these nodes and their parents exist on the remote side. If a list of heads is specified, return only nodes which are heads or ancestors of these heads, and return a second element which contains all remote heads which get new children. """ if base is None: base = {} self.findincoming(remote, base, heads, force=force) self.ui.debug(_("common changesets up to ") + " ".join(map(short, base.keys())) + "\n") remain = set(self.changelog.nodemap) # prune everything remote has from the tree remain.remove(nullid) remove = base.keys() while remove: n = remove.pop(0) if n in remain: remain.remove(n) for p in self.changelog.parents(n): remove.append(p) # find every node whose parents have been pruned subset = [] # find every remote head that will get new children updated_heads = set() for n in remain: p1, p2 = self.changelog.parents(n) if p1 not in remain and p2 not in remain: subset.append(n) if heads: if p1 in heads: updated_heads.add(p1) if p2 in heads: updated_heads.add(p2) # this is the set of all roots we have to push if heads: return subset, list(updated_heads) else: return subset def pull(self, remote, heads=None, force=False): lock = self.lock() try: common, fetch, rheads = self.findcommonincoming(remote, heads=heads, force=force) if fetch == [nullid]: self.ui.status(_("requesting all changes\n")) if not fetch: self.ui.status(_("no changes found\n")) return 0 if heads is None and remote.capable('changegroupsubset'): heads = rheads if heads is None: cg = remote.changegroup(fetch, 'pull') else: if not remote.capable('changegroupsubset'): raise util.Abort(_("Partial pull cannot be done because " "other repository doesn't support " "changegroupsubset.")) cg = remote.changegroupsubset(fetch, heads, 'pull') return self.addchangegroup(cg, 'pull', remote.url()) finally: lock.release() def push(self, remote, force=False, revs=None): # there are two ways to push to remote repo: # # addchangegroup assumes local user can lock remote # repo (local filesystem, old ssh servers). # # unbundle assumes local user cannot lock remote repo (new ssh # servers, http servers). if remote.capable('unbundle'): return self.push_unbundle(remote, force, revs) return self.push_addchangegroup(remote, force, revs) def prepush(self, remote, force, revs): common = {} remote_heads = remote.heads() inc = self.findincoming(remote, common, remote_heads, force=force) update, updated_heads = self.findoutgoing(remote, common, remote_heads) if revs is not None: msng_cl, bases, heads = self.changelog.nodesbetween(update, revs) else: bases, heads = update, self.changelog.heads() def checkbranch(lheads, rheads, updatelh): ''' check whether there are more local heads than remote heads on a specific branch. lheads: local branch heads rheads: remote branch heads updatelh: outgoing local branch heads ''' warn = 0 if not revs and len(lheads) > len(rheads): warn = 1 else: updatelheads = [self.changelog.heads(x, lheads) for x in updatelh] newheads = set(sum(updatelheads, [])) & set(lheads) if not newheads: return True for r in rheads: if r in self.changelog.nodemap: desc = self.changelog.heads(r, heads) l = [h for h in heads if h in desc] if not l: newheads.add(r) else: newheads.add(r) if len(newheads) > len(rheads): warn = 1 if warn: if not rheads: # new branch requires --force self.ui.warn(_("abort: push creates new" " remote branch '%s'!\n") % self[updatelh[0]].branch()) else: self.ui.warn(_("abort: push creates new remote heads!\n")) self.ui.status(_("(did you forget to merge?" " use push -f to force)\n")) return False return True if not bases: self.ui.status(_("no changes found\n")) return None, 1 elif not force: # Check for each named branch if we're creating new remote heads. # To be a remote head after push, node must be either: # - unknown locally # - a local outgoing head descended from update # - a remote head that's known locally and not # ancestral to an outgoing head # # New named branches cannot be created without --force. if remote_heads != [nullid]: if remote.capable('branchmap'): localhds = {} if not revs: localhds = self.branchmap() else: for n in heads: branch = self[n].branch() if branch in localhds: localhds[branch].append(n) else: localhds[branch] = [n] remotehds = remote.branchmap() for lh in localhds: if lh in remotehds: rheads = remotehds[lh] else: rheads = [] lheads = localhds[lh] updatelh = [upd for upd in update if self[upd].branch() == lh] if not updatelh: continue if not checkbranch(lheads, rheads, updatelh): return None, 0 else: if not checkbranch(heads, remote_heads, update): return None, 0 if inc: self.ui.warn(_("note: unsynced remote changes!\n")) if revs is None: # use the fast path, no race possible on push cg = self._changegroup(common.keys(), 'push') else: cg = self.changegroupsubset(update, revs, 'push') return cg, remote_heads def push_addchangegroup(self, remote, force, revs): lock = remote.lock() try: ret = self.prepush(remote, force, revs) if ret[0] is not None: cg, remote_heads = ret return remote.addchangegroup(cg, 'push', self.url()) return ret[1] finally: lock.release() def push_unbundle(self, remote, force, revs): # local repo finds heads on server, finds out what revs it # must push. once revs transferred, if server finds it has # different heads (someone else won commit/push race), server # aborts. ret = self.prepush(remote, force, revs) if ret[0] is not None: cg, remote_heads = ret if force: remote_heads = ['force'] return remote.unbundle(cg, remote_heads, 'push') return ret[1] def changegroupinfo(self, nodes, source): if self.ui.verbose or source == 'bundle': self.ui.status(_("%d changesets found\n") % len(nodes)) if self.ui.debugflag: self.ui.debug(_("list of changesets:\n")) for node in nodes: self.ui.debug("%s\n" % hex(node)) def changegroupsubset(self, bases, heads, source, extranodes=None): """This function generates a changegroup consisting of all the nodes that are descendents of any of the bases, and ancestors of any of the heads. It is fairly complex as determining which filenodes and which manifest nodes need to be included for the changeset to be complete is non-trivial. Another wrinkle is doing the reverse, figuring out which changeset in the changegroup a particular filenode or manifestnode belongs to. The caller can specify some nodes that must be included in the changegroup using the extranodes argument. It should be a dict where the keys are the filenames (or 1 for the manifest), and the values are lists of (node, linknode) tuples, where node is a wanted node and linknode is the changelog node that should be transmitted as the linkrev. """ if extranodes is None: # can we go through the fast path ? heads.sort() allheads = self.heads() allheads.sort() if heads == allheads: common = [] # parents of bases are known from both sides for n in bases: for p in self.changelog.parents(n): if p != nullid: common.append(p) return self._changegroup(common, source) self.hook('preoutgoing', throw=True, source=source) # Set up some initial variables # Make it easy to refer to self.changelog cl = self.changelog # msng is short for missing - compute the list of changesets in this # changegroup. msng_cl_lst, bases, heads = cl.nodesbetween(bases, heads) self.changegroupinfo(msng_cl_lst, source) # Some bases may turn out to be superfluous, and some heads may be # too. nodesbetween will return the minimal set of bases and heads # necessary to re-create the changegroup. # Known heads are the list of heads that it is assumed the recipient # of this changegroup will know about. knownheads = set() # We assume that all parents of bases are known heads. for n in bases: knownheads.update(cl.parents(n)) knownheads.discard(nullid) knownheads = list(knownheads) if knownheads: # Now that we know what heads are known, we can compute which # changesets are known. The recipient must know about all # changesets required to reach the known heads from the null # changeset. has_cl_set, junk, junk = cl.nodesbetween(None, knownheads) junk = None # Transform the list into a set. has_cl_set = set(has_cl_set) else: # If there were no known heads, the recipient cannot be assumed to # know about any changesets. has_cl_set = set() # Make it easy to refer to self.manifest mnfst = self.manifest # We don't know which manifests are missing yet msng_mnfst_set = {} # Nor do we know which filenodes are missing. msng_filenode_set = {} junk = mnfst.index[len(mnfst) - 1] # Get around a bug in lazyindex junk = None # A changeset always belongs to itself, so the changenode lookup # function for a changenode is identity. def identity(x): return x # If we determine that a particular file or manifest node must be a # node that the recipient of the changegroup will already have, we can # also assume the recipient will have all the parents. This function # prunes them from the set of missing nodes. def prune_parents(revlog, hasset, msngset): haslst = list(hasset) haslst.sort(key=revlog.rev) for node in haslst: parentlst = [p for p in revlog.parents(node) if p != nullid] while parentlst: n = parentlst.pop() if n not in hasset: hasset.add(n) p = [p for p in revlog.parents(n) if p != nullid] parentlst.extend(p) for n in hasset: msngset.pop(n, None) # This is a function generating function used to set up an environment # for the inner function to execute in. def manifest_and_file_collector(changedfileset): # This is an information gathering function that gathers # information from each changeset node that goes out as part of # the changegroup. The information gathered is a list of which # manifest nodes are potentially required (the recipient may # already have them) and total list of all files which were # changed in any changeset in the changegroup. # # We also remember the first changenode we saw any manifest # referenced by so we can later determine which changenode 'owns' # the manifest. def collect_manifests_and_files(clnode): c = cl.read(clnode) for f in c[3]: # This is to make sure we only have one instance of each # filename string for each filename. changedfileset.setdefault(f, f) msng_mnfst_set.setdefault(c[0], clnode) return collect_manifests_and_files # Figure out which manifest nodes (of the ones we think might be part # of the changegroup) the recipient must know about and remove them # from the changegroup. def prune_manifests(): has_mnfst_set = set() for n in msng_mnfst_set: # If a 'missing' manifest thinks it belongs to a changenode # the recipient is assumed to have, obviously the recipient # must have that manifest. linknode = cl.node(mnfst.linkrev(mnfst.rev(n))) if linknode in has_cl_set: has_mnfst_set.add(n) prune_parents(mnfst, has_mnfst_set, msng_mnfst_set) # Use the information collected in collect_manifests_and_files to say # which changenode any manifestnode belongs to. def lookup_manifest_link(mnfstnode): return msng_mnfst_set[mnfstnode] # A function generating function that sets up the initial environment # the inner function. def filenode_collector(changedfiles): next_rev = [0] # This gathers information from each manifestnode included in the # changegroup about which filenodes the manifest node references # so we can include those in the changegroup too. # # It also remembers which changenode each filenode belongs to. It # does this by assuming the a filenode belongs to the changenode # the first manifest that references it belongs to. def collect_msng_filenodes(mnfstnode): r = mnfst.rev(mnfstnode) if r == next_rev[0]: # If the last rev we looked at was the one just previous, # we only need to see a diff. deltamf = mnfst.readdelta(mnfstnode) # For each line in the delta for f, fnode in deltamf.iteritems(): f = changedfiles.get(f, None) # And if the file is in the list of files we care # about. if f is not None: # Get the changenode this manifest belongs to clnode = msng_mnfst_set[mnfstnode] # Create the set of filenodes for the file if # there isn't one already. ndset = msng_filenode_set.setdefault(f, {}) # And set the filenode's changelog node to the # manifest's if it hasn't been set already. ndset.setdefault(fnode, clnode) else: # Otherwise we need a full manifest. m = mnfst.read(mnfstnode) # For every file in we care about. for f in changedfiles: fnode = m.get(f, None) # If it's in the manifest if fnode is not None: # See comments above. clnode = msng_mnfst_set[mnfstnode] ndset = msng_filenode_set.setdefault(f, {}) ndset.setdefault(fnode, clnode) # Remember the revision we hope to see next. next_rev[0] = r + 1 return collect_msng_filenodes # We have a list of filenodes we think we need for a file, lets remove # all those we know the recipient must have. def prune_filenodes(f, filerevlog): msngset = msng_filenode_set[f] hasset = set() # If a 'missing' filenode thinks it belongs to a changenode we # assume the recipient must have, then the recipient must have # that filenode. for n in msngset: clnode = cl.node(filerevlog.linkrev(filerevlog.rev(n))) if clnode in has_cl_set: hasset.add(n) prune_parents(filerevlog, hasset, msngset) # A function generator function that sets up the a context for the # inner function. def lookup_filenode_link_func(fname): msngset = msng_filenode_set[fname] # Lookup the changenode the filenode belongs to. def lookup_filenode_link(fnode): return msngset[fnode] return lookup_filenode_link # Add the nodes that were explicitly requested. def add_extra_nodes(name, nodes): if not extranodes or name not in extranodes: return for node, linknode in extranodes[name]: if node not in nodes: nodes[node] = linknode # Now that we have all theses utility functions to help out and # logically divide up the task, generate the group. def gengroup(): # The set of changed files starts empty. changedfiles = {} # Create a changenode group generator that will call our functions # back to lookup the owning changenode and collect information. group = cl.group(msng_cl_lst, identity, manifest_and_file_collector(changedfiles)) for chnk in group: yield chnk # The list of manifests has been collected by the generator # calling our functions back. prune_manifests() add_extra_nodes(1, msng_mnfst_set) msng_mnfst_lst = msng_mnfst_set.keys() # Sort the manifestnodes by revision number. msng_mnfst_lst.sort(key=mnfst.rev) # Create a generator for the manifestnodes that calls our lookup # and data collection functions back. group = mnfst.group(msng_mnfst_lst, lookup_manifest_link, filenode_collector(changedfiles)) for chnk in group: yield chnk # These are no longer needed, dereference and toss the memory for # them. msng_mnfst_lst = None msng_mnfst_set.clear() if extranodes: for fname in extranodes: if isinstance(fname, int): continue msng_filenode_set.setdefault(fname, {}) changedfiles[fname] = 1 # Go through all our files in order sorted by name. for fname in sorted(changedfiles): filerevlog = self.file(fname) if not len(filerevlog): raise util.Abort(_("empty or missing revlog for %s") % fname) # Toss out the filenodes that the recipient isn't really # missing. if fname in msng_filenode_set: prune_filenodes(fname, filerevlog) add_extra_nodes(fname, msng_filenode_set[fname]) msng_filenode_lst = msng_filenode_set[fname].keys() else: msng_filenode_lst = [] # If any filenodes are left, generate the group for them, # otherwise don't bother. if len(msng_filenode_lst) > 0: yield changegroup.chunkheader(len(fname)) yield fname # Sort the filenodes by their revision # msng_filenode_lst.sort(key=filerevlog.rev) # Create a group generator and only pass in a changenode # lookup function as we need to collect no information # from filenodes. group = filerevlog.group(msng_filenode_lst, lookup_filenode_link_func(fname)) for chnk in group: yield chnk if fname in msng_filenode_set: # Don't need this anymore, toss it to free memory. del msng_filenode_set[fname] # Signal that no more groups are left. yield changegroup.closechunk() if msng_cl_lst: self.hook('outgoing', node=hex(msng_cl_lst[0]), source=source) return util.chunkbuffer(gengroup()) def changegroup(self, basenodes, source): # to avoid a race we use changegroupsubset() (issue1320) return self.changegroupsubset(basenodes, self.heads(), source) def _changegroup(self, common, source): """Generate a changegroup of all nodes that we have that a recipient doesn't. This is much easier than the previous function as we can assume that the recipient has any changenode we aren't sending them. common is the set of common nodes between remote and self""" self.hook('preoutgoing', throw=True, source=source) cl = self.changelog nodes = cl.findmissing(common) revset = set([cl.rev(n) for n in nodes]) self.changegroupinfo(nodes, source) def identity(x): return x def gennodelst(log): for r in log: if log.linkrev(r) in revset: yield log.node(r) def changed_file_collector(changedfileset): def collect_changed_files(clnode): c = cl.read(clnode) changedfileset.update(c[3]) return collect_changed_files def lookuprevlink_func(revlog): def lookuprevlink(n): return cl.node(revlog.linkrev(revlog.rev(n))) return lookuprevlink def gengroup(): # construct a list of all changed files changedfiles = set() for chnk in cl.group(nodes, identity, changed_file_collector(changedfiles)): yield chnk mnfst = self.manifest nodeiter = gennodelst(mnfst) for chnk in mnfst.group(nodeiter, lookuprevlink_func(mnfst)): yield chnk for fname in sorted(changedfiles): filerevlog = self.file(fname) if not len(filerevlog): raise util.Abort(_("empty or missing revlog for %s") % fname) nodeiter = gennodelst(filerevlog) nodeiter = list(nodeiter) if nodeiter: yield changegroup.chunkheader(len(fname)) yield fname lookup = lookuprevlink_func(filerevlog) for chnk in filerevlog.group(nodeiter, lookup): yield chnk yield changegroup.closechunk() if nodes: self.hook('outgoing', node=hex(nodes[0]), source=source) return util.chunkbuffer(gengroup()) def addchangegroup(self, source, srctype, url, emptyok=False): """add changegroup to repo. return values: - nothing changed or no source: 0 - more heads than before: 1+added heads (2..n) - less heads than before: -1-removed heads (-2..-n) - number of heads stays the same: 1 """ def csmap(x): self.ui.debug(_("add changeset %s\n") % short(x)) return len(cl) def revmap(x): return cl.rev(x) if not source: return 0 self.hook('prechangegroup', throw=True, source=srctype, url=url) changesets = files = revisions = 0 # write changelog data to temp files so concurrent readers will not see # inconsistent view cl = self.changelog cl.delayupdate() oldheads = len(cl.heads()) tr = self.transaction() try: trp = weakref.proxy(tr) # pull off the changeset group self.ui.status(_("adding changesets\n")) clstart = len(cl) chunkiter = changegroup.chunkiter(source) if cl.addgroup(chunkiter, csmap, trp) is None and not emptyok: raise util.Abort(_("received changelog group is empty")) clend = len(cl) changesets = clend - clstart # pull off the manifest group self.ui.status(_("adding manifests\n")) chunkiter = changegroup.chunkiter(source) # no need to check for empty manifest group here: # if the result of the merge of 1 and 2 is the same in 3 and 4, # no new manifest will be created and the manifest group will # be empty during the pull self.manifest.addgroup(chunkiter, revmap, trp) # process the files self.ui.status(_("adding file changes\n")) while 1: f = changegroup.getchunk(source) if not f: break self.ui.debug(_("adding %s revisions\n") % f) fl = self.file(f) o = len(fl) chunkiter = changegroup.chunkiter(source) if fl.addgroup(chunkiter, revmap, trp) is None: raise util.Abort(_("received file revlog group is empty")) revisions += len(fl) - o files += 1 newheads = len(cl.heads()) heads = "" if oldheads and newheads != oldheads: heads = _(" (%+d heads)") % (newheads - oldheads) self.ui.status(_("added %d changesets" " with %d changes to %d files%s\n") % (changesets, revisions, files, heads)) if changesets > 0: p = lambda: cl.writepending() and self.root or "" self.hook('pretxnchangegroup', throw=True, node=hex(cl.node(clstart)), source=srctype, url=url, pending=p) # make changelog see real files again cl.finalize(trp) tr.close() finally: del tr if changesets > 0: # forcefully update the on-disk branch cache self.ui.debug(_("updating the branch cache\n")) self.branchtags() self.hook("changegroup", node=hex(cl.node(clstart)), source=srctype, url=url) for i in xrange(clstart, clend): self.hook("incoming", node=hex(cl.node(i)), source=srctype, url=url) # never return 0 here: if newheads < oldheads: return newheads - oldheads - 1 else: return newheads - oldheads + 1 def stream_in(self, remote): fp = remote.stream_out() l = fp.readline() try: resp = int(l) except ValueError: raise error.ResponseError( _('Unexpected response from remote server:'), l) if resp == 1: raise util.Abort(_('operation forbidden by server')) elif resp == 2: raise util.Abort(_('locking the remote repository failed')) elif resp != 0: raise util.Abort(_('the server sent an unknown error code')) self.ui.status(_('streaming all changes\n')) l = fp.readline() try: total_files, total_bytes = map(int, l.split(' ', 1)) except (ValueError, TypeError): raise error.ResponseError( _('Unexpected response from remote server:'), l) self.ui.status(_('%d files to transfer, %s of data\n') % (total_files, util.bytecount(total_bytes))) start = time.time() for i in xrange(total_files): # XXX doesn't support '\n' or '\r' in filenames l = fp.readline() try: name, size = l.split('\0', 1) size = int(size) except (ValueError, TypeError): raise error.ResponseError( _('Unexpected response from remote server:'), l) self.ui.debug(_('adding %s (%s)\n') % (name, util.bytecount(size))) # for backwards compat, name was partially encoded ofp = self.sopener(store.decodedir(name), 'w') for chunk in util.filechunkiter(fp, limit=size): ofp.write(chunk) ofp.close() elapsed = time.time() - start if elapsed <= 0: elapsed = 0.001 self.ui.status(_('transferred %s in %.1f seconds (%s/sec)\n') % (util.bytecount(total_bytes), elapsed, util.bytecount(total_bytes / elapsed))) self.invalidate() return len(self.heads()) + 1 def clone(self, remote, heads=[], stream=False): '''clone remote repository. keyword arguments: heads: list of revs to clone (forces use of pull) stream: use streaming clone if possible''' # now, all clients that can request uncompressed clones can # read repo formats supported by all servers that can serve # them. # if revlog format changes, client will have to check version # and format flags on "stream" capability, and use # uncompressed only if compatible. if stream and not heads and remote.capable('stream'): return self.stream_in(remote) return self.pull(remote, heads) # used to avoid circular references so destructors work def aftertrans(files): renamefiles = [tuple(t) for t in files] def a(): for src, dest in renamefiles: util.rename(src, dest) return a def instance(ui, path, create): return localrepository(ui, util.drop_scheme('file', path), create) def islocal(path): return True