# localrepo.py - read/write repository class for mercurial # # Copyright 2005, 2006 Matt Mackall # # This software may be used and distributed according to the terms # of the GNU General Public License, incorporated herein by reference. from node import * from i18n import _ import repo, changegroup import changelog, dirstate, filelog, manifest, context import re, lock, transaction, tempfile, stat, mdiff, errno, ui import os, revlog, time, util class localrepository(repo.repository): capabilities = ('lookup', 'changegroupsubset') supported = ('revlogv1', 'store') def __del__(self): self.transhandle = None def __init__(self, parentui, path=None, create=0): repo.repository.__init__(self) if not path: p = os.getcwd() while not os.path.isdir(os.path.join(p, ".hg")): oldp = p p = os.path.dirname(p) if p == oldp: raise repo.RepoError(_("There is no Mercurial repository" " here (.hg not found)")) path = p 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) if not os.path.isdir(self.path): if create: if not os.path.exists(path): os.mkdir(path) os.mkdir(self.path) requirements = ["revlogv1"] if parentui.configbool('format', 'usestore', True): os.mkdir(os.path.join(self.path, "store")) requirements.append("store") # 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 repo.RepoError(_("repository %s not found") % path) elif create: raise repo.RepoError(_("repository %s already exists") % path) else: # find requirements try: requirements = self.opener("requires").read().splitlines() except IOError, inst: if inst.errno != errno.ENOENT: raise requirements = [] # check them for r in requirements: if r not in self.supported: raise repo.RepoError(_("requirement '%s' not supported") % r) # setup store if "store" in requirements: self.encodefn = util.encodefilename self.decodefn = util.decodefilename self.spath = os.path.join(self.path, "store") else: self.encodefn = lambda x: x self.decodefn = lambda x: x self.spath = self.path self.sopener = util.encodedopener(util.opener(self.spath), self.encodefn) self.ui = ui.ui(parentui=parentui) try: self.ui.readconfig(self.join("hgrc"), self.root) except IOError: pass self.changelog = changelog.changelog(self.sopener) self.sopener.defversion = self.changelog.version self.manifest = manifest.manifest(self.sopener) fallback = self.ui.config('ui', 'fallbackencoding') if fallback: util._fallbackencoding = fallback self.tagscache = None self.branchcache = None self.nodetagscache = None self.filterpats = {} self.transhandle = None self.dirstate = dirstate.dirstate(self.opener, self.ui, self.root) def url(self): return 'file:' + self.root def hook(self, name, throw=False, **args): def callhook(hname, funcname): '''call python hook. hook is callable object, looked up as name in python module. if callable returns "true", hook fails, else passes. if hook raises exception, treated as hook failure. exception propagates if throw is "true". reason for "true" meaning "hook failed" is so that unmodified commands (e.g. mercurial.commands.update) can be run as hooks without wrappers to convert return values.''' self.ui.note(_("calling hook %s: %s\n") % (hname, funcname)) obj = funcname if not callable(obj): d = funcname.rfind('.') if d == -1: raise util.Abort(_('%s hook is invalid ("%s" not in ' 'a module)') % (hname, funcname)) modname = funcname[:d] try: obj = __import__(modname) except ImportError: try: # extensions are loaded with hgext_ prefix obj = __import__("hgext_%s" % modname) except ImportError: raise util.Abort(_('%s hook is invalid ' '(import of "%s" failed)') % (hname, modname)) try: for p in funcname.split('.')[1:]: obj = getattr(obj, p) except AttributeError, err: raise util.Abort(_('%s hook is invalid ' '("%s" is not defined)') % (hname, funcname)) if not callable(obj): raise util.Abort(_('%s hook is invalid ' '("%s" is not callable)') % (hname, funcname)) try: r = obj(ui=self.ui, repo=self, hooktype=name, **args) except (KeyboardInterrupt, util.SignalInterrupt): raise except Exception, exc: if isinstance(exc, util.Abort): self.ui.warn(_('error: %s hook failed: %s\n') % (hname, exc.args[0])) else: self.ui.warn(_('error: %s hook raised an exception: ' '%s\n') % (hname, exc)) if throw: raise self.ui.print_exc() return True if r: if throw: raise util.Abort(_('%s hook failed') % hname) self.ui.warn(_('warning: %s hook failed\n') % hname) return r def runhook(name, cmd): self.ui.note(_("running hook %s: %s\n") % (name, cmd)) env = dict([('HG_' + k.upper(), v) for k, v in args.iteritems()]) r = util.system(cmd, environ=env, cwd=self.root) if r: desc, r = util.explain_exit(r) if throw: raise util.Abort(_('%s hook %s') % (name, desc)) self.ui.warn(_('warning: %s hook %s\n') % (name, desc)) return r r = False hooks = [(hname, cmd) for hname, cmd in self.ui.configitems("hooks") if hname.split(".", 1)[0] == name and cmd] hooks.sort() for hname, cmd in hooks: if callable(cmd): r = callhook(hname, cmd) or r elif cmd.startswith('python:'): r = callhook(hname, cmd[7:].strip()) or r else: r = runhook(hname, cmd) or r return r tag_disallowed = ':\r\n' def _tag(self, name, node, message, local, user, date, parent=None): use_dirstate = parent is None for c in self.tag_disallowed: if c in name: raise util.Abort(_('%r cannot be used in a tag name') % c) self.hook('pretag', throw=True, node=hex(node), tag=name, local=local) if local: # local tags are stored in the current charset self.opener('localtags', 'a').write('%s %s\n' % (hex(node), name)) self.hook('tag', node=hex(node), tag=name, local=local) return # committed tags are stored in UTF-8 line = '%s %s\n' % (hex(node), util.fromlocal(name)) if use_dirstate: self.wfile('.hgtags', 'ab').write(line) else: ntags = self.filectx('.hgtags', parent).data() self.wfile('.hgtags', 'ab').write(ntags + line) if use_dirstate and self.dirstate.state('.hgtags') == '?': self.add(['.hgtags']) tagnode = self.commit(['.hgtags'], message, user, date, p1=parent) self.hook('tag', node=hex(node), tag=name, local=local) return tagnode def tag(self, name, node, message, local, user, date): '''tag a revision with a symbolic name. if local is True, the tag is stored in a per-repository file. otherwise, it is stored in the .hgtags file, and a new changeset is committed with the change. keyword arguments: local: whether to store tag 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._tag(name, node, message, local, user, date) def tags(self): '''return a mapping of tag to node''' if self.tagscache: return self.tagscache globaltags = {} def readtags(lines, fn): filetags = {} count = 0 def warn(msg): self.ui.warn(_("%s, line %s: %s\n") % (fn, count, msg)) for l in lines: count += 1 if not l: continue s = l.split(" ", 1) if len(s) != 2: warn(_("cannot parse entry")) continue node, key = s key = util.tolocal(key.strip()) # stored in UTF-8 try: bin_n = bin(node) except TypeError: warn(_("node '%s' is not well formed") % node) continue if bin_n not in self.changelog.nodemap: warn(_("tag '%s' refers to unknown node") % key) continue h = [] if key in filetags: n, h = filetags[key] h.append(n) filetags[key] = (bin_n, h) for k,nh in filetags.items(): if k not in globaltags: globaltags[k] = nh continue # we prefer the global tag if: # it supercedes us OR # mutual supercedes and it has a higher rank # otherwise we win because we're tip-most an, ah = nh bn, bh = globaltags[k] if bn != an and an in bh and \ (bn not in ah or len(bh) > len(ah)): an = bn ah.extend([n for n in bh if n not in ah]) globaltags[k] = an, ah # read the tags file from each head, ending with the tip f = None for rev, node, fnode in self._hgtagsnodes(): f = (f and f.filectx(fnode) or self.filectx('.hgtags', fileid=fnode)) readtags(f.data().splitlines(), f) try: data = util.fromlocal(self.opener("localtags").read()) # localtags are stored in the local character set # while the internal tag table is stored in UTF-8 readtags(data.splitlines(), "localtags") except IOError: pass self.tagscache = {} for k,nh in globaltags.items(): n = nh[0] if n != nullid: self.tagscache[k] = n self.tagscache['tip'] = self.changelog.tip() return self.tagscache def _hgtagsnodes(self): heads = self.heads() heads.reverse() last = {} ret = [] for node in heads: c = self.changectx(node) rev = c.rev() try: fnode = c.filenode('.hgtags') except revlog.LookupError: continue ret.append((rev, node, fnode)) if fnode in last: ret[last[fnode]] = None last[fnode] = len(ret) - 1 return [item for item in ret if item] def tagslist(self): '''return a list of tags ordered by revision''' l = [] for t, n in self.tags().items(): try: r = self.changelog.rev(n) except: r = -2 # sort to the beginning of the list if unknown l.append((r, t, n)) l.sort() return [(t, n) for r, t, n in l] def nodetags(self, node): '''return the tags associated with a node''' if not self.nodetagscache: self.nodetagscache = {} for t, n in self.tags().items(): self.nodetagscache.setdefault(n, []).append(t) return self.nodetagscache.get(node, []) def _branchtags(self): partial, last, lrev = self._readbranchcache() tiprev = self.changelog.count() - 1 if lrev != tiprev: self._updatebranchcache(partial, lrev+1, tiprev+1) self._writebranchcache(partial, self.changelog.tip(), tiprev) return partial def branchtags(self): if self.branchcache is not None: return self.branchcache self.branchcache = {} # avoid recursion in changectx partial = self._branchtags() # the branch cache is stored on disk as UTF-8, but in the local # charset internally for k, v in partial.items(): self.branchcache[util.tolocal(k)] = v return self.branchcache def _readbranchcache(self): partial = {} try: f = self.opener("branch.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 not (lrev < self.changelog.count() and self.changelog.node(lrev) == last): # sanity check # invalidate the cache raise ValueError('Invalid branch cache: unknown tip') for l in lines: if not l: continue node, label = l.split(" ", 1) partial[label.strip()] = bin(node) except (KeyboardInterrupt, util.SignalInterrupt): 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("branch.cache", "w", atomictemp=True) f.write("%s %s\n" % (hex(tip), tiprev)) for label, node in branches.iteritems(): f.write("%s %s\n" % (hex(node), label)) f.rename() except (IOError, OSError): pass def _updatebranchcache(self, partial, start, end): for r in xrange(start, end): c = self.changectx(r) b = c.branch() partial[b] = c.node() def lookup(self, key): if key == '.': key, second = self.dirstate.parents() if key == nullid: raise repo.RepoError(_("no revision checked out")) if second != nullid: self.ui.warn(_("warning: working directory has two parents, " "tag '.' uses the first\n")) elif key == 'null': return nullid 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 raise repo.RepoError(_("unknown revision '%s'") % key) def dev(self): return os.lstat(self.path).st_dev def local(self): return True def join(self, f): return os.path.join(self.path, f) def sjoin(self, f): f = self.encodefn(f) return os.path.join(self.spath, f) def wjoin(self, f): return os.path.join(self.root, f) def file(self, f): if f[0] == '/': f = f[1:] return filelog.filelog(self.sopener, f) def changectx(self, changeid=None): return context.changectx(self, changeid) def workingctx(self): return context.workingctx(self) def parents(self, changeid=None): ''' get list of changectxs for parents of changeid or working directory ''' if changeid is None: pl = self.dirstate.parents() else: n = self.changelog.lookup(changeid) pl = self.changelog.parents(n) if pl[1] == nullid: return [self.changectx(pl[0])] return [self.changectx(pl[0]), self.changectx(pl[1])] 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): mf = util.matcher(self.root, "", [pat], [], [])[1] l.append((mf, cmd)) self.filterpats[filter] = l for mf, cmd in self.filterpats[filter]: if mf(filename): self.ui.debug(_("filtering %s through %s\n") % (filename, cmd)) data = util.filter(data, cmd) break return data 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) if "l" in flags: f = self.wjoin(filename) try: os.unlink(f) except OSError: pass d = os.path.dirname(f) if not os.path.exists(d): os.makedirs(d) os.symlink(data, f) else: try: if self._link(filename): os.unlink(self.wjoin(filename)) except OSError: pass self.wopener(filename, 'w').write(data) util.set_exec(self.wjoin(filename), "x" in flags) def wwritedata(self, filename, data): return self._filter("decode", filename, data) def transaction(self): tr = self.transhandle if tr != None and tr.running(): return tr.nest() # save dirstate for rollback try: ds = self.opener("dirstate").read() except IOError: ds = "" self.opener("journal.dirstate", "w").write(ds) renames = [(self.sjoin("journal"), self.sjoin("undo")), (self.join("journal.dirstate"), self.join("undo.dirstate"))] tr = transaction.transaction(self.ui.warn, self.sopener, self.sjoin("journal"), aftertrans(renames)) self.transhandle = tr return tr def recover(self): l = self.lock() if os.path.exists(self.sjoin("journal")): self.ui.status(_("rolling back interrupted transaction\n")) transaction.rollback(self.sopener, self.sjoin("journal")) self.reload() return True else: self.ui.warn(_("no interrupted transaction available\n")) return False def rollback(self, wlock=None, lock=None): if not wlock: wlock = self.wlock() if not lock: 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")) util.rename(self.join("undo.dirstate"), self.join("dirstate")) self.reload() self.wreload() else: self.ui.warn(_("no rollback information available\n")) def wreload(self): self.dirstate.reload() def reload(self): self.changelog.load() self.manifest.load() self.tagscache = None self.nodetagscache = None def do_lock(self, lockname, wait, releasefn=None, acquirefn=None, desc=None): try: l = lock.lock(lockname, 0, releasefn, desc=desc) except lock.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=1): return self.do_lock(self.sjoin("lock"), wait, acquirefn=self.reload, desc=_('repository %s') % self.origroot) def wlock(self, wait=1): return self.do_lock(self.join("wlock"), wait, self.dirstate.write, self.wreload, desc=_('working directory of %s') % self.origroot) def filecommit(self, fn, manifest1, manifest2, linkrev, transaction, changelist): """ commit an individual file as part of a larger transaction """ t = self.wread(fn) fl = self.file(fn) fp1 = manifest1.get(fn, nullid) fp2 = manifest2.get(fn, nullid) meta = {} cp = self.dirstate.copied(fn) if cp: # 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 # meta["copy"] = cp if not manifest2: # not a branch merge meta["copyrev"] = hex(manifest1.get(cp, nullid)) fp2 = nullid elif fp2 != nullid: # copied on remote side meta["copyrev"] = hex(manifest1.get(cp, nullid)) elif fp1 != nullid: # copied on local side, reversed meta["copyrev"] = hex(manifest2.get(cp)) fp2 = fp1 else: # directory rename meta["copyrev"] = hex(manifest1.get(cp, nullid)) self.ui.debug(_(" %s: copy %s:%s\n") % (fn, cp, meta["copyrev"])) fp1 = nullid elif fp2 != nullid: # is one parent an ancestor of the other? fpa = fl.ancestor(fp1, fp2) if fpa == fp1: fp1, fp2 = fp2, nullid elif fpa == fp2: fp2 = nullid # is the file unmodified from the parent? report existing entry if fp2 == nullid and not fl.cmp(fp1, t): return fp1 changelist.append(fn) return fl.add(t, meta, transaction, linkrev, fp1, fp2) def rawcommit(self, files, text, user, date, p1=None, p2=None, wlock=None, extra={}): if p1 is None: p1, p2 = self.dirstate.parents() return self.commit(files=files, text=text, user=user, date=date, p1=p1, p2=p2, wlock=wlock, extra=extra) def commit(self, files=None, text="", user=None, date=None, match=util.always, force=False, lock=None, wlock=None, force_editor=False, p1=None, p2=None, extra={}): commit = [] remove = [] changed = [] use_dirstate = (p1 is None) # not rawcommit extra = extra.copy() if use_dirstate: if files: for f in files: s = self.dirstate.state(f) if s in 'nmai': commit.append(f) elif s == 'r': remove.append(f) else: self.ui.warn(_("%s not tracked!\n") % f) else: changes = self.status(match=match)[:5] modified, added, removed, deleted, unknown = changes commit = modified + added remove = removed else: commit = files if use_dirstate: p1, p2 = self.dirstate.parents() update_dirstate = True else: p1, p2 = p1, p2 or nullid update_dirstate = (self.dirstate.parents()[0] == p1) c1 = self.changelog.read(p1) c2 = self.changelog.read(p2) m1 = self.manifest.read(c1[0]).copy() m2 = self.manifest.read(c2[0]) if use_dirstate: branchname = self.workingctx().branch() try: branchname = branchname.decode('UTF-8').encode('UTF-8') except UnicodeDecodeError: raise util.Abort(_('branch name not in UTF-8!')) else: branchname = "" if use_dirstate: oldname = c1[5].get("branch") # stored in UTF-8 if not commit and not remove and not force and p2 == nullid and \ branchname == oldname: self.ui.status(_("nothing changed\n")) return None xp1 = hex(p1) if p2 == nullid: xp2 = '' else: xp2 = hex(p2) self.hook("precommit", throw=True, parent1=xp1, parent2=xp2) if not wlock: wlock = self.wlock() if not lock: lock = self.lock() tr = self.transaction() # check in files new = {} linkrev = self.changelog.count() commit.sort() is_exec = util.execfunc(self.root, m1.execf) is_link = util.linkfunc(self.root, m1.linkf) for f in commit: self.ui.note(f + "\n") try: new[f] = self.filecommit(f, m1, m2, linkrev, tr, changed) m1.set(f, is_exec(f), is_link(f)) except (OSError, IOError): if use_dirstate: self.ui.warn(_("trouble committing %s!\n") % f) raise else: remove.append(f) # update manifest m1.update(new) remove.sort() removed = [] for f in remove: if f in m1: del m1[f] removed.append(f) mn = self.manifest.add(m1, tr, linkrev, c1[0], c2[0], (new, removed)) # add changeset new = new.keys() new.sort() user = user or self.ui.username() if not text or force_editor: edittext = [] if text: edittext.append(text) edittext.append("") edittext.append("HG: user: %s" % user) if p2 != nullid: edittext.append("HG: branch merge") if branchname: edittext.append("HG: branch %s" % util.tolocal(branchname)) edittext.extend(["HG: changed %s" % f for f in changed]) edittext.extend(["HG: removed %s" % f for f in removed]) if not changed and not remove: edittext.append("HG: no files changed") edittext.append("") # run editor in the repository root olddir = os.getcwd() os.chdir(self.root) text = self.ui.edit("\n".join(edittext), user) os.chdir(olddir) lines = [line.rstrip() for line in text.rstrip().splitlines()] while lines and not lines[0]: del lines[0] if not lines: return None text = '\n'.join(lines) if branchname: extra["branch"] = branchname n = self.changelog.add(mn, changed + removed, text, tr, p1, p2, user, date, extra) self.hook('pretxncommit', throw=True, node=hex(n), parent1=xp1, parent2=xp2) tr.close() if self.branchcache and "branch" in extra: self.branchcache[util.tolocal(extra["branch"])] = n if use_dirstate or update_dirstate: self.dirstate.setparents(n) if use_dirstate: self.dirstate.update(new, "n") self.dirstate.forget(removed) self.hook("commit", node=hex(n), parent1=xp1, parent2=xp2) return n def walk(self, node=None, files=[], match=util.always, badmatch=None): ''' walk recursively through the directory tree or a given changeset, finding all files matched by the match function results are yielded in a tuple (src, filename), where src is one of: 'f' the file was found in the directory tree 'm' the file was only in the dirstate and not in the tree 'b' file was not found and matched badmatch ''' if node: fdict = dict.fromkeys(files) # for dirstate.walk, files=['.'] means "walk the whole tree". # follow that here, too fdict.pop('.', None) mdict = self.manifest.read(self.changelog.read(node)[0]) mfiles = mdict.keys() mfiles.sort() for fn in mfiles: for ffn in fdict: # match if the file is the exact name or a directory if ffn == fn or fn.startswith("%s/" % ffn): del fdict[ffn] break if match(fn): yield 'm', fn ffiles = fdict.keys() ffiles.sort() for fn in ffiles: if badmatch and badmatch(fn): if match(fn): yield 'b', fn else: self.ui.warn(_('%s: No such file in rev %s\n') % (self.pathto(fn), short(node))) else: for src, fn in self.dirstate.walk(files, match, badmatch=badmatch): yield src, fn def status(self, node1=None, node2=None, files=[], match=util.always, wlock=None, list_ignored=False, list_clean=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 fcmp(fn, getnode): t1 = self.wread(fn) return self.file(fn).cmp(getnode(fn), t1) def mfmatches(node): change = self.changelog.read(node) mf = self.manifest.read(change[0]).copy() for fn in mf.keys(): if not match(fn): del mf[fn] return mf modified, added, removed, deleted, unknown = [], [], [], [], [] ignored, clean = [], [] compareworking = False if not node1 or (not node2 and node1 == self.dirstate.parents()[0]): compareworking = True if not compareworking: # read the manifest from node1 before the manifest from node2, # so that we'll hit the manifest cache if we're going through # all the revisions in parent->child order. mf1 = mfmatches(node1) mywlock = False # are we comparing the working directory? if not node2: (lookup, modified, added, removed, deleted, unknown, ignored, clean) = self.dirstate.status(files, match, list_ignored, list_clean) # are we comparing working dir against its parent? if compareworking: if lookup: # do a full compare of any files that might have changed mnode = self.changelog.read(self.dirstate.parents()[0])[0] getnode = lambda fn: (self.manifest.find(mnode, fn)[0] or nullid) for f in lookup: if fcmp(f, getnode): modified.append(f) else: clean.append(f) if not wlock and not mywlock: mywlock = True try: wlock = self.wlock(wait=0) except lock.LockException: pass if wlock: self.dirstate.update([f], "n") else: # we are comparing working dir against non-parent # generate a pseudo-manifest for the working dir # XXX: create it in dirstate.py ? mf2 = mfmatches(self.dirstate.parents()[0]) is_exec = util.execfunc(self.root, mf2.execf) is_link = util.linkfunc(self.root, mf2.linkf) for f in lookup + modified + added: mf2[f] = "" mf2.set(f, is_exec(f), is_link(f)) for f in removed: if f in mf2: del mf2[f] if mywlock and wlock: wlock.release() else: # we are comparing two revisions mf2 = mfmatches(node2) if not compareworking: # flush lists from dirstate before comparing manifests modified, added, clean = [], [], [] # make sure to sort the files so we talk to the disk in a # reasonable order mf2keys = mf2.keys() mf2keys.sort() getnode = lambda fn: mf1.get(fn, nullid) for fn in mf2keys: if mf1.has_key(fn): if mf1.flags(fn) != mf2.flags(fn) or \ (mf1[fn] != mf2[fn] and (mf2[fn] != "" or fcmp(fn, getnode))): modified.append(fn) elif list_clean: clean.append(fn) del mf1[fn] else: added.append(fn) removed = mf1.keys() # sort and return results: for l in modified, added, removed, deleted, unknown, ignored, clean: l.sort() return (modified, added, removed, deleted, unknown, ignored, clean) def add(self, list, wlock=None): if not wlock: wlock = self.wlock() for f in list: p = self.wjoin(f) islink = os.path.islink(p) size = os.lstat(p).st_size if 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 islink and not os.path.exists(p): self.ui.warn(_("%s does not exist!\n") % f) elif not islink and not os.path.isfile(p): self.ui.warn(_("%s not added: only files and symlinks " "supported currently\n") % f) elif self.dirstate.state(f) in 'an': self.ui.warn(_("%s already tracked!\n") % f) else: self.dirstate.update([f], "a") def forget(self, list, wlock=None): if not wlock: wlock = self.wlock() for f in list: if self.dirstate.state(f) not in 'ai': self.ui.warn(_("%s not added!\n") % f) else: self.dirstate.forget([f]) def remove(self, list, unlink=False, wlock=None): if unlink: for f in list: try: util.unlink(self.wjoin(f)) except OSError, inst: if inst.errno != errno.ENOENT: raise if not wlock: wlock = self.wlock() for f in list: if unlink and os.path.exists(self.wjoin(f)): self.ui.warn(_("%s still exists!\n") % f) elif self.dirstate.state(f) == 'a': self.dirstate.forget([f]) elif f not in self.dirstate: self.ui.warn(_("%s not tracked!\n") % f) else: self.dirstate.update([f], "r") def undelete(self, list, wlock=None): p = self.dirstate.parents()[0] mn = self.changelog.read(p)[0] m = self.manifest.read(mn) if not wlock: wlock = self.wlock() for f in list: if self.dirstate.state(f) not in "r": self.ui.warn("%s not removed!\n" % f) else: t = self.file(f).read(m[f]) self.wwrite(f, t, m.flags(f)) self.dirstate.update([f], "n") def copy(self, source, dest, wlock=None): 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: if not wlock: wlock = self.wlock() if self.dirstate.state(dest) == '?': self.dirstate.update([dest], "a") self.dirstate.copy(source, dest) 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] heads.sort() return [n for (r, n) in heads] 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: 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) """ m = self.changelog.nodemap search = [] fetch = {} seen = {} seenbranch = {} if base == None: base = {} if not heads: heads = remote.heads() if self.changelog.tip() == nullid: base[nullid] = 1 if heads != [nullid]: return [nullid] return [] # 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 if not unknown: return [] req = dict.fromkeys(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) # schedule branch range for scanning seenbranch[n] = 1 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[n[1]] = 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[p] = 1 seen[n[0]] = 1 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: n = search.pop(0) reqcnt += 1 l = remote.between([(n[0], n[1])])[0] 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[p] = 1 base[i] = 1 else: self.ui.debug(_("narrowed branch search to %s:%s\n") % (short(p), short(i))) search.append((p, i)) break p, f = i, f * 2 # sanity check our fetch list for f in fetch.keys(): if f in m: raise repo.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 fetch.keys() 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 == None: base = {} self.findincoming(remote, base, heads, force=force) self.ui.debug(_("common changesets up to ") + " ".join(map(short, base.keys())) + "\n") remain = dict.fromkeys(self.changelog.nodemap) # prune everything remote has from the tree del remain[nullid] remove = base.keys() while remove: n = remove.pop(0) if n in remain: del remain[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 = {} 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[p1] = True if p2 in heads: updated_heads[p2] = True # this is the set of all roots we have to push if heads: return subset, updated_heads.keys() else: return subset def pull(self, remote, heads=None, force=False, lock=None): mylock = False if not lock: lock = self.lock() mylock = True try: fetch = self.findincoming(remote, 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: cg = remote.changegroup(fetch, 'pull') else: if 'changegroupsubset' not in remote.capabilities: 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: if mylock: 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): base = {} remote_heads = remote.heads() inc = self.findincoming(remote, base, remote_heads, force=force) update, updated_heads = self.findoutgoing(remote, base, remote_heads) if revs is not None: msng_cl, bases, heads = self.changelog.nodesbetween(update, revs) else: bases, heads = update, self.changelog.heads() if not bases: self.ui.status(_("no changes found\n")) return None, 1 elif not force: # check 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 warn = 0 if remote_heads == [nullid]: warn = 0 elif not revs and len(heads) > len(remote_heads): warn = 1 else: newheads = list(heads) for r in remote_heads: 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.append(r) else: newheads.append(r) if len(newheads) > len(remote_heads): warn = 1 if warn: self.ui.warn(_("abort: push creates new remote branches!\n")) self.ui.status(_("(did you forget to merge?" " use push -f to force)\n")) return None, 1 elif inc: self.ui.warn(_("note: unsynced remote changes!\n")) if revs is None: cg = self.changegroup(update, 'push') else: cg = self.changegroupsubset(update, revs, 'push') return cg, remote_heads def push_addchangegroup(self, remote, force, revs): lock = remote.lock() 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] 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): self.ui.note(_("%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): """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.""" 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) # 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 = {} # We assume that all parents of bases are known heads. for n in bases: for p in cl.parents(n): if p != nullid: knownheads[p] = 1 knownheads = knownheads.keys() 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 an ersatz set. has_cl_set = dict.fromkeys(has_cl_set) else: # If there were no known heads, the recipient cannot be assumed to # know about any changesets. has_cl_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[mnfst.count() - 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 # A function generating function. Sets up an environment for the # inner function. def cmp_by_rev_func(revlog): # Compare two nodes by their revision number in the environment's # revision history. Since the revision number both represents the # most efficient order to read the nodes in, and represents a # topological sorting of the nodes, this function is often useful. def cmp_by_rev(a, b): return cmp(revlog.rev(a), revlog.rev(b)) return cmp_by_rev # 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 = hasset.keys() haslst.sort(cmp_by_rev_func(revlog)) 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[n] = 1 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 = {} 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(n)) if linknode in has_cl_set: has_mnfst_set[n] = 1 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. delta = mdiff.patchtext(mnfst.delta(mnfstnode)) # For each line in the delta for dline in delta.splitlines(): # get the filename and filenode for that line f, fnode = dline.split('\0') fnode = bin(fnode[:40]) 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 now the recipient must have. def prune_filenodes(f, filerevlog): msngset = msng_filenode_set[f] hasset = {} # 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(n)) if clnode in has_cl_set: hasset[n] = 1 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 # 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() msng_mnfst_lst = msng_mnfst_set.keys() # Sort the manifestnodes by revision number. msng_mnfst_lst.sort(cmp_by_rev_func(mnfst)) # 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() changedfiles = changedfiles.keys() changedfiles.sort() # Go through all our files in order sorted by name. for fname in changedfiles: filerevlog = self.file(fname) # Toss out the filenodes that the recipient isn't really # missing. if msng_filenode_set.has_key(fname): prune_filenodes(fname, filerevlog) 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.genchunk(fname) # Sort the filenodes by their revision # msng_filenode_lst.sort(cmp_by_rev_func(filerevlog)) # 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 msng_filenode_set.has_key(fname): # 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): """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.""" self.hook('preoutgoing', throw=True, source=source) cl = self.changelog nodes = cl.nodesbetween(basenodes, None)[0] revset = dict.fromkeys([cl.rev(n) for n in nodes]) self.changegroupinfo(nodes) def identity(x): return x def gennodelst(revlog): for r in xrange(0, revlog.count()): n = revlog.node(r) if revlog.linkrev(n) in revset: yield n def changed_file_collector(changedfileset): def collect_changed_files(clnode): c = cl.read(clnode) for fname in c[3]: changedfileset[fname] = 1 return collect_changed_files def lookuprevlink_func(revlog): def lookuprevlink(n): return cl.node(revlog.linkrev(n)) return lookuprevlink def gengroup(): # construct a list of all changed files changedfiles = {} for chnk in cl.group(nodes, identity, changed_file_collector(changedfiles)): yield chnk changedfiles = changedfiles.keys() changedfiles.sort() mnfst = self.manifest nodeiter = gennodelst(mnfst) for chnk in mnfst.group(nodeiter, lookuprevlink_func(mnfst)): yield chnk for fname in changedfiles: filerevlog = self.file(fname) nodeiter = gennodelst(filerevlog) nodeiter = list(nodeiter) if nodeiter: yield changegroup.genchunk(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): """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 cl.count() 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 tr = self.transaction() # write changelog data to temp files so concurrent readers will not see # inconsistent view cl = self.changelog cl.delayupdate() oldheads = len(cl.heads()) # pull off the changeset group self.ui.status(_("adding changesets\n")) cor = cl.count() - 1 chunkiter = changegroup.chunkiter(source) if cl.addgroup(chunkiter, csmap, tr, 1) is None: raise util.Abort(_("received changelog group is empty")) cnr = cl.count() - 1 changesets = cnr - cor # 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, tr) # 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 = fl.count() chunkiter = changegroup.chunkiter(source) if fl.addgroup(chunkiter, revmap, tr) is None: raise util.Abort(_("received file revlog group is empty")) revisions += fl.count() - o files += 1 # make changelog see real files again cl.finalize(tr) newheads = len(self.changelog.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: self.hook('pretxnchangegroup', throw=True, node=hex(self.changelog.node(cor+1)), source=srctype, url=url) tr.close() if changesets > 0: self.hook("changegroup", node=hex(self.changelog.node(cor+1)), source=srctype, url=url) for i in xrange(cor + 1, cnr + 1): self.hook("incoming", node=hex(self.changelog.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 util.UnexpectedOutput( _('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 util.UnexpectedOutput( _('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 util.UnexpectedOutput( _('Unexpected response from remote server:'), l) self.ui.debug('adding %s (%s)\n' % (name, util.bytecount(size))) ofp = self.sopener(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.reload() 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