# hg.py - repository classes for mercurial # # Copyright 2005-2007 Matt Mackall # Copyright 2006 Vadim Gelfer # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from i18n import _ from lock import release from node import nullid import localrepo, bundlerepo, unionrepo, httppeer, sshpeer, statichttprepo import bookmarks, lock, util, extensions, error, node, scmutil, phases, url import cmdutil, discovery, repoview, exchange import ui as uimod import merge as mergemod import verify as verifymod import errno, os, shutil def _local(path): path = util.expandpath(util.urllocalpath(path)) return (os.path.isfile(path) and bundlerepo or localrepo) def addbranchrevs(lrepo, other, branches, revs): peer = other.peer() # a courtesy to callers using a localrepo for other hashbranch, branches = branches if not hashbranch and not branches: x = revs or None if util.safehasattr(revs, 'first'): y = revs.first() elif revs: y = revs[0] else: y = None return x, y if revs: revs = list(revs) else: revs = [] if not peer.capable('branchmap'): if branches: raise util.Abort(_("remote branch lookup not supported")) revs.append(hashbranch) return revs, revs[0] branchmap = peer.branchmap() def primary(branch): if branch == '.': if not lrepo: raise util.Abort(_("dirstate branch not accessible")) branch = lrepo.dirstate.branch() if branch in branchmap: revs.extend(node.hex(r) for r in reversed(branchmap[branch])) return True else: return False for branch in branches: if not primary(branch): raise error.RepoLookupError(_("unknown branch '%s'") % branch) if hashbranch: if not primary(hashbranch): revs.append(hashbranch) return revs, revs[0] def parseurl(path, branches=None): '''parse url#branch, returning (url, (branch, branches))''' u = util.url(path) branch = None if u.fragment: branch = u.fragment u.fragment = None return str(u), (branch, branches or []) schemes = { 'bundle': bundlerepo, 'union': unionrepo, 'file': _local, 'http': httppeer, 'https': httppeer, 'ssh': sshpeer, 'static-http': statichttprepo, } def _peerlookup(path): u = util.url(path) scheme = u.scheme or 'file' thing = schemes.get(scheme) or schemes['file'] try: return thing(path) except TypeError: # we can't test callable(thing) because 'thing' can be an unloaded # module that implements __call__ if not util.safehasattr(thing, 'instance'): raise return thing def islocal(repo): '''return true if repo (or path pointing to repo) is local''' if isinstance(repo, str): try: return _peerlookup(repo).islocal(repo) except AttributeError: return False return repo.local() def openpath(ui, path): '''open path with open if local, url.open if remote''' pathurl = util.url(path, parsequery=False, parsefragment=False) if pathurl.islocal(): return util.posixfile(pathurl.localpath(), 'rb') else: return url.open(ui, path) # a list of (ui, repo) functions called for wire peer initialization wirepeersetupfuncs = [] def _peerorrepo(ui, path, create=False): """return a repository object for the specified path""" obj = _peerlookup(path).instance(ui, path, create) ui = getattr(obj, "ui", ui) for name, module in extensions.extensions(ui): hook = getattr(module, 'reposetup', None) if hook: hook(ui, obj) if not obj.local(): for f in wirepeersetupfuncs: f(ui, obj) return obj def repository(ui, path='', create=False): """return a repository object for the specified path""" peer = _peerorrepo(ui, path, create) repo = peer.local() if not repo: raise util.Abort(_("repository '%s' is not local") % (path or peer.url())) return repo.filtered('visible') def peer(uiorrepo, opts, path, create=False): '''return a repository peer for the specified path''' rui = remoteui(uiorrepo, opts) return _peerorrepo(rui, path, create).peer() def defaultdest(source): '''return default destination of clone if none is given >>> defaultdest('foo') 'foo' >>> defaultdest('/foo/bar') 'bar' >>> defaultdest('/') '' >>> defaultdest('') '' >>> defaultdest('http://example.org/') '' >>> defaultdest('http://example.org/foo/') 'foo' ''' path = util.url(source).path if not path: return '' return os.path.basename(os.path.normpath(path)) def share(ui, source, dest=None, update=True, bookmarks=True): '''create a shared repository''' if not islocal(source): raise util.Abort(_('can only share local repositories')) if not dest: dest = defaultdest(source) else: dest = ui.expandpath(dest) if isinstance(source, str): origsource = ui.expandpath(source) source, branches = parseurl(origsource) srcrepo = repository(ui, source) rev, checkout = addbranchrevs(srcrepo, srcrepo, branches, None) else: srcrepo = source.local() origsource = source = srcrepo.url() checkout = None sharedpath = srcrepo.sharedpath # if our source is already sharing destwvfs = scmutil.vfs(dest, realpath=True) destvfs = scmutil.vfs(os.path.join(destwvfs.base, '.hg'), realpath=True) if destvfs.lexists(): raise util.Abort(_('destination already exists')) if not destwvfs.isdir(): destwvfs.mkdir() destvfs.makedir() requirements = '' try: requirements = srcrepo.vfs.read('requires') except IOError as inst: if inst.errno != errno.ENOENT: raise requirements += 'shared\n' destvfs.write('requires', requirements) destvfs.write('sharedpath', sharedpath) r = repository(ui, destwvfs.base) default = srcrepo.ui.config('paths', 'default') if default: fp = r.vfs("hgrc", "w", text=True) fp.write("[paths]\n") fp.write("default = %s\n" % default) fp.close() if update: r.ui.status(_("updating working directory\n")) if update is not True: checkout = update for test in (checkout, 'default', 'tip'): if test is None: continue try: uprev = r.lookup(test) break except error.RepoLookupError: continue _update(r, uprev) if bookmarks: fp = r.vfs('shared', 'w') fp.write('bookmarks\n') fp.close() def copystore(ui, srcrepo, destpath): '''copy files from store of srcrepo in destpath returns destlock ''' destlock = None try: hardlink = None num = 0 closetopic = [None] def prog(topic, pos): if pos is None: closetopic[0] = topic else: ui.progress(topic, pos + num) srcpublishing = srcrepo.publishing() srcvfs = scmutil.vfs(srcrepo.sharedpath) dstvfs = scmutil.vfs(destpath) for f in srcrepo.store.copylist(): if srcpublishing and f.endswith('phaseroots'): continue dstbase = os.path.dirname(f) if dstbase and not dstvfs.exists(dstbase): dstvfs.mkdir(dstbase) if srcvfs.exists(f): if f.endswith('data'): # 'dstbase' may be empty (e.g. revlog format 0) lockfile = os.path.join(dstbase, "lock") # lock to avoid premature writing to the target destlock = lock.lock(dstvfs, lockfile) hardlink, n = util.copyfiles(srcvfs.join(f), dstvfs.join(f), hardlink, progress=prog) num += n if hardlink: ui.debug("linked %d files\n" % num) if closetopic[0]: ui.progress(closetopic[0], None) else: ui.debug("copied %d files\n" % num) if closetopic[0]: ui.progress(closetopic[0], None) return destlock except: # re-raises release(destlock) raise def clonewithshare(ui, peeropts, sharepath, source, srcpeer, dest, pull=False, rev=None, update=True, stream=False): """Perform a clone using a shared repo. The store for the repository will be located at /.hg. The specified revisions will be cloned or pulled from "source". A shared repo will be created at "dest" and a working copy will be created if "update" is True. """ revs = None if rev: if not srcpeer.capable('lookup'): raise util.Abort(_("src repository does not support " "revision lookup and so doesn't " "support clone by revision")) revs = [srcpeer.lookup(r) for r in rev] basename = os.path.basename(sharepath) if os.path.exists(sharepath): ui.status(_('(sharing from existing pooled repository %s)\n') % basename) else: ui.status(_('(sharing from new pooled repository %s)\n') % basename) # Always use pull mode because hardlinks in share mode don't work well. # Never update because working copies aren't necessary in share mode. clone(ui, peeropts, source, dest=sharepath, pull=True, rev=rev, update=False, stream=stream) sharerepo = repository(ui, path=sharepath) share(ui, sharerepo, dest=dest, update=update, bookmarks=False) # We need to perform a pull against the dest repo to fetch bookmarks # and other non-store data that isn't shared by default. In the case of # non-existing shared repo, this means we pull from the remote twice. This # is a bit weird. But at the time it was implemented, there wasn't an easy # way to pull just non-changegroup data. destrepo = repository(ui, path=dest) exchange.pull(destrepo, srcpeer, heads=revs) return srcpeer, peer(ui, peeropts, dest) def clone(ui, peeropts, source, dest=None, pull=False, rev=None, update=True, stream=False, branch=None, shareopts=None): """Make a copy of an existing repository. Create a copy of an existing repository in a new directory. The source and destination are URLs, as passed to the repository function. Returns a pair of repository peers, the source and newly created destination. The location of the source is added to the new repository's .hg/hgrc file, as the default to be used for future pulls and pushes. If an exception is raised, the partly cloned/updated destination repository will be deleted. Arguments: source: repository object or URL dest: URL of destination repository to create (defaults to base name of source repository) pull: always pull from source repository, even in local case or if the server prefers streaming stream: stream raw data uncompressed from repository (fast over LAN, slow over WAN) rev: revision to clone up to (implies pull=True) update: update working directory after clone completes, if destination is local repository (True means update to default rev, anything else is treated as a revision) branch: branches to clone shareopts: dict of options to control auto sharing behavior. The "pool" key activates auto sharing mode and defines the directory for stores. The "mode" key determines how to construct the directory name of the shared repository. "identity" means the name is derived from the node of the first changeset in the repository. "remote" means the name is derived from the remote's path/URL. Defaults to "identity." """ if isinstance(source, str): origsource = ui.expandpath(source) source, branch = parseurl(origsource, branch) srcpeer = peer(ui, peeropts, source) else: srcpeer = source.peer() # in case we were called with a localrepo branch = (None, branch or []) origsource = source = srcpeer.url() rev, checkout = addbranchrevs(srcpeer, srcpeer, branch, rev) if dest is None: dest = defaultdest(source) if dest: ui.status(_("destination directory: %s\n") % dest) else: dest = ui.expandpath(dest) dest = util.urllocalpath(dest) source = util.urllocalpath(source) if not dest: raise util.Abort(_("empty destination path is not valid")) destvfs = scmutil.vfs(dest, expandpath=True) if destvfs.lexists(): if not destvfs.isdir(): raise util.Abort(_("destination '%s' already exists") % dest) elif destvfs.listdir(): raise util.Abort(_("destination '%s' is not empty") % dest) shareopts = shareopts or {} sharepool = shareopts.get('pool') sharenamemode = shareopts.get('mode') if sharepool and islocal(dest): sharepath = None if sharenamemode == 'identity': # Resolve the name from the initial changeset in the remote # repository. This returns nullid when the remote is empty. It # raises RepoLookupError if revision 0 is filtered or otherwise # not available. If we fail to resolve, sharing is not enabled. try: rootnode = srcpeer.lookup('0') if rootnode != node.nullid: sharepath = os.path.join(sharepool, node.hex(rootnode)) else: ui.status(_('(not using pooled storage: ' 'remote appears to be empty)\n')) except error.RepoLookupError: ui.status(_('(not using pooled storage: ' 'unable to resolve identity of remote)\n')) elif sharenamemode == 'remote': sharepath = os.path.join(sharepool, util.sha1(source).hexdigest()) else: raise util.Abort('unknown share naming mode: %s' % sharenamemode) if sharepath: return clonewithshare(ui, peeropts, sharepath, source, srcpeer, dest, pull=pull, rev=rev, update=update, stream=stream) srclock = destlock = cleandir = None srcrepo = srcpeer.local() try: abspath = origsource if islocal(origsource): abspath = os.path.abspath(util.urllocalpath(origsource)) if islocal(dest): cleandir = dest copy = False if (srcrepo and srcrepo.cancopy() and islocal(dest) and not phases.hassecret(srcrepo)): copy = not pull and not rev if copy: try: # we use a lock here because if we race with commit, we # can end up with extra data in the cloned revlogs that's # not pointed to by changesets, thus causing verify to # fail srclock = srcrepo.lock(wait=False) except error.LockError: copy = False if copy: srcrepo.hook('preoutgoing', throw=True, source='clone') hgdir = os.path.realpath(os.path.join(dest, ".hg")) if not os.path.exists(dest): os.mkdir(dest) else: # only clean up directories we create ourselves cleandir = hgdir try: destpath = hgdir util.makedir(destpath, notindexed=True) except OSError as inst: if inst.errno == errno.EEXIST: cleandir = None raise util.Abort(_("destination '%s' already exists") % dest) raise destlock = copystore(ui, srcrepo, destpath) # copy bookmarks over srcbookmarks = srcrepo.join('bookmarks') dstbookmarks = os.path.join(destpath, 'bookmarks') if os.path.exists(srcbookmarks): util.copyfile(srcbookmarks, dstbookmarks) # Recomputing branch cache might be slow on big repos, # so just copy it def copybranchcache(fname): srcbranchcache = srcrepo.join('cache/%s' % fname) dstbranchcache = os.path.join(dstcachedir, fname) if os.path.exists(srcbranchcache): if not os.path.exists(dstcachedir): os.mkdir(dstcachedir) util.copyfile(srcbranchcache, dstbranchcache) dstcachedir = os.path.join(destpath, 'cache') # In local clones we're copying all nodes, not just served # ones. Therefore copy all branch caches over. copybranchcache('branch2') for cachename in repoview.filtertable: copybranchcache('branch2-%s' % cachename) # we need to re-init the repo after manually copying the data # into it destpeer = peer(srcrepo, peeropts, dest) srcrepo.hook('outgoing', source='clone', node=node.hex(node.nullid)) else: try: destpeer = peer(srcrepo or ui, peeropts, dest, create=True) # only pass ui when no srcrepo except OSError as inst: if inst.errno == errno.EEXIST: cleandir = None raise util.Abort(_("destination '%s' already exists") % dest) raise revs = None if rev: if not srcpeer.capable('lookup'): raise util.Abort(_("src repository does not support " "revision lookup and so doesn't " "support clone by revision")) revs = [srcpeer.lookup(r) for r in rev] checkout = revs[0] if destpeer.local(): if not stream: if pull: stream = False else: stream = None destpeer.local().clone(srcpeer, heads=revs, stream=stream) elif srcrepo: exchange.push(srcrepo, destpeer, revs=revs, bookmarks=srcrepo._bookmarks.keys()) else: raise util.Abort(_("clone from remote to remote not supported")) cleandir = None destrepo = destpeer.local() if destrepo: template = uimod.samplehgrcs['cloned'] fp = destrepo.vfs("hgrc", "w", text=True) u = util.url(abspath) u.passwd = None defaulturl = str(u) fp.write(template % defaulturl) fp.close() destrepo.ui.setconfig('paths', 'default', defaulturl, 'clone') if update: if update is not True: checkout = srcpeer.lookup(update) uprev = None status = None if checkout is not None: try: uprev = destrepo.lookup(checkout) except error.RepoLookupError: pass if uprev is None: try: uprev = destrepo._bookmarks['@'] update = '@' bn = destrepo[uprev].branch() if bn == 'default': status = _("updating to bookmark @\n") else: status = (_("updating to bookmark @ on branch %s\n") % bn) except KeyError: try: uprev = destrepo.branchtip('default') except error.RepoLookupError: uprev = destrepo.lookup('tip') if not status: bn = destrepo[uprev].branch() status = _("updating to branch %s\n") % bn destrepo.ui.status(status) _update(destrepo, uprev) if update in destrepo._bookmarks: bookmarks.activate(destrepo, update) finally: release(srclock, destlock) if cleandir is not None: shutil.rmtree(cleandir, True) if srcpeer is not None: srcpeer.close() return srcpeer, destpeer def _showstats(repo, stats): repo.ui.status(_("%d files updated, %d files merged, " "%d files removed, %d files unresolved\n") % stats) def updaterepo(repo, node, overwrite): """Update the working directory to node. When overwrite is set, changes are clobbered, merged else returns stats (see pydoc mercurial.merge.applyupdates)""" return mergemod.update(repo, node, False, overwrite, None, labels=['working copy', 'destination']) def update(repo, node): """update the working directory to node, merging linear changes""" stats = updaterepo(repo, node, False) _showstats(repo, stats) if stats[3]: repo.ui.status(_("use 'hg resolve' to retry unresolved file merges\n")) return stats[3] > 0 # naming conflict in clone() _update = update def clean(repo, node, show_stats=True): """forcibly switch the working directory to node, clobbering changes""" stats = updaterepo(repo, node, True) util.unlinkpath(repo.join('graftstate'), ignoremissing=True) if show_stats: _showstats(repo, stats) return stats[3] > 0 def merge(repo, node, force=None, remind=True): """Branch merge with node, resolving changes. Return true if any unresolved conflicts.""" stats = mergemod.update(repo, node, True, force, False) _showstats(repo, stats) if stats[3]: repo.ui.status(_("use 'hg resolve' to retry unresolved file merges " "or 'hg update -C .' to abandon\n")) elif remind: repo.ui.status(_("(branch merge, don't forget to commit)\n")) return stats[3] > 0 def _incoming(displaychlist, subreporecurse, ui, repo, source, opts, buffered=False): """ Helper for incoming / gincoming. displaychlist gets called with (remoterepo, incomingchangesetlist, displayer) parameters, and is supposed to contain only code that can't be unified. """ source, branches = parseurl(ui.expandpath(source), opts.get('branch')) other = peer(repo, opts, source) ui.status(_('comparing with %s\n') % util.hidepassword(source)) revs, checkout = addbranchrevs(repo, other, branches, opts.get('rev')) if revs: revs = [other.lookup(rev) for rev in revs] other, chlist, cleanupfn = bundlerepo.getremotechanges(ui, repo, other, revs, opts["bundle"], opts["force"]) try: if not chlist: ui.status(_("no changes found\n")) return subreporecurse() displayer = cmdutil.show_changeset(ui, other, opts, buffered) displaychlist(other, chlist, displayer) displayer.close() finally: cleanupfn() subreporecurse() return 0 # exit code is zero since we found incoming changes def incoming(ui, repo, source, opts): def subreporecurse(): ret = 1 if opts.get('subrepos'): ctx = repo[None] for subpath in sorted(ctx.substate): sub = ctx.sub(subpath) ret = min(ret, sub.incoming(ui, source, opts)) return ret def display(other, chlist, displayer): limit = cmdutil.loglimit(opts) if opts.get('newest_first'): chlist.reverse() count = 0 for n in chlist: if limit is not None and count >= limit: break parents = [p for p in other.changelog.parents(n) if p != nullid] if opts.get('no_merges') and len(parents) == 2: continue count += 1 displayer.show(other[n]) return _incoming(display, subreporecurse, ui, repo, source, opts) def _outgoing(ui, repo, dest, opts): dest = ui.expandpath(dest or 'default-push', dest or 'default') dest, branches = parseurl(dest, opts.get('branch')) ui.status(_('comparing with %s\n') % util.hidepassword(dest)) revs, checkout = addbranchrevs(repo, repo, branches, opts.get('rev')) if revs: revs = [repo.lookup(rev) for rev in scmutil.revrange(repo, revs)] other = peer(repo, opts, dest) outgoing = discovery.findcommonoutgoing(repo.unfiltered(), other, revs, force=opts.get('force')) o = outgoing.missing if not o: scmutil.nochangesfound(repo.ui, repo, outgoing.excluded) return o, other def outgoing(ui, repo, dest, opts): def recurse(): ret = 1 if opts.get('subrepos'): ctx = repo[None] for subpath in sorted(ctx.substate): sub = ctx.sub(subpath) ret = min(ret, sub.outgoing(ui, dest, opts)) return ret limit = cmdutil.loglimit(opts) o, other = _outgoing(ui, repo, dest, opts) if not o: cmdutil.outgoinghooks(ui, repo, other, opts, o) return recurse() if opts.get('newest_first'): o.reverse() displayer = cmdutil.show_changeset(ui, repo, opts) count = 0 for n in o: if limit is not None and count >= limit: break parents = [p for p in repo.changelog.parents(n) if p != nullid] if opts.get('no_merges') and len(parents) == 2: continue count += 1 displayer.show(repo[n]) displayer.close() cmdutil.outgoinghooks(ui, repo, other, opts, o) recurse() return 0 # exit code is zero since we found outgoing changes def revert(repo, node, choose): """revert changes to revision in node without updating dirstate""" return mergemod.update(repo, node, False, True, choose)[3] > 0 def verify(repo): """verify the consistency of a repository""" ret = verifymod.verify(repo) # Broken subrepo references in hidden csets don't seem worth worrying about, # since they can't be pushed/pulled, and --hidden can be used if they are a # concern. # pathto() is needed for -R case revs = repo.revs("filelog(%s)", util.pathto(repo.root, repo.getcwd(), '.hgsubstate')) if revs: repo.ui.status(_('checking subrepo links\n')) for rev in revs: ctx = repo[rev] try: for subpath in ctx.substate: ret = ctx.sub(subpath).verify() or ret except Exception: repo.ui.warn(_('.hgsubstate is corrupt in revision %s\n') % node.short(ctx.node())) return ret def remoteui(src, opts): 'build a remote ui from ui or repo and opts' if util.safehasattr(src, 'baseui'): # looks like a repository dst = src.baseui.copy() # drop repo-specific config src = src.ui # copy target options from repo else: # assume it's a global ui object dst = src.copy() # keep all global options # copy ssh-specific options for o in 'ssh', 'remotecmd': v = opts.get(o) or src.config('ui', o) if v: dst.setconfig("ui", o, v, 'copied') # copy bundle-specific options r = src.config('bundle', 'mainreporoot') if r: dst.setconfig('bundle', 'mainreporoot', r, 'copied') # copy selected local settings to the remote ui for sect in ('auth', 'hostfingerprints', 'http_proxy'): for key, val in src.configitems(sect): dst.setconfig(sect, key, val, 'copied') v = src.config('web', 'cacerts') if v == '!': dst.setconfig('web', 'cacerts', v, 'copied') elif v: dst.setconfig('web', 'cacerts', util.expandpath(v), 'copied') return dst