Mercurial > hg
view mercurial/hg.py @ 18431:3aa9b2136593
pathencode: add a SHA-1 hash function
This will be used by an upcoming patch.
This calls out to the Python hash implementation.
An earlier version of this function implemented SHA-1 directly, but
the amount of extra code didn't seem like a good tradeoff compared
to the small big-picture increase in performance (long paths are
uncommon).
author | Bryan O'Sullivan <bryano@fb.com> |
---|---|
date | Wed, 12 Dec 2012 13:09:34 -0800 |
parents | f3b21beb9802 |
children | 1f794204abbd |
line wrap: on
line source
# hg.py - repository classes for mercurial # # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> # # 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 hex, nullid import localrepo, bundlerepo, httppeer, sshpeer, statichttprepo, bookmarks import lock, util, extensions, error, node, scmutil, phases, url import cmdutil, discovery 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: return revs or None, revs and revs[0] or None revs = revs and list(revs) or [] 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, '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: return thing def islocal(repo): '''return true if repo or path 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''' if islocal(path): return util.posixfile(util.urllocalpath(path), 'rb') else: return url.open(ui, path) 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(): hook = getattr(module, 'reposetup', None) if hook: hook(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''' return os.path.basename(os.path.normpath(util.url(source).path)) def share(ui, source, dest=None, update=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 root = os.path.realpath(dest) roothg = os.path.join(root, '.hg') if os.path.exists(roothg): raise util.Abort(_('destination already exists')) if not os.path.isdir(root): os.mkdir(root) util.makedir(roothg, notindexed=True) requirements = '' try: requirements = srcrepo.opener.read('requires') except IOError, inst: if inst.errno != errno.ENOENT: raise requirements += 'shared\n' util.writefile(os.path.join(roothg, 'requires'), requirements) util.writefile(os.path.join(roothg, 'sharedpath'), sharedpath) r = repository(ui, root) default = srcrepo.ui.config('paths', 'default') if not default: # set default to source for being able to clone subrepos default = os.path.abspath(util.urllocalpath(origsource)) fp = r.opener("hgrc", "w", text=True) fp.write("[paths]\n") fp.write("default = %s\n" % default) fp.close() r.ui.setconfig('paths', 'default', default) 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) def copystore(ui, srcrepo, destpath): '''copy files from store of srcrepo in destpath returns destlock ''' destlock = None try: hardlink = None num = 0 srcpublishing = srcrepo.ui.configbool('phases', 'publish', True) for f in srcrepo.store.copylist(): if srcpublishing and f.endswith('phaseroots'): continue src = os.path.join(srcrepo.sharedpath, f) dst = os.path.join(destpath, f) dstbase = os.path.dirname(dst) if dstbase and not os.path.exists(dstbase): os.mkdir(dstbase) if os.path.exists(src): if dst.endswith('data'): # lock to avoid premature writing to the target destlock = lock.lock(os.path.join(dstbase, "lock")) hardlink, n = util.copyfiles(src, dst, hardlink) num += n if hardlink: ui.debug("linked %d files\n" % num) else: ui.debug("copied %d files\n" % num) return destlock except: # re-raises release(destlock) raise def clone(ui, peeropts, source, dest=None, pull=False, rev=None, update=True, stream=False, branch=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 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 """ 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) 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")) if os.path.exists(dest): if not os.path.isdir(dest): raise util.Abort(_("destination '%s' already exists") % dest) elif os.listdir(dest): raise util.Abort(_("destination '%s' is not empty") % dest) class DirCleanup(object): def __init__(self, dir_): self.rmtree = shutil.rmtree self.dir_ = dir_ def close(self): self.dir_ = None def cleanup(self): if self.dir_: self.rmtree(self.dir_, True) srclock = destlock = dircleanup = None srcrepo = srcpeer.local() try: abspath = origsource if islocal(origsource): abspath = os.path.abspath(util.urllocalpath(origsource)) if islocal(dest): dircleanup = DirCleanup(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 dircleanup.dir_ = hgdir try: destpath = hgdir util.makedir(destpath, notindexed=True) except OSError, inst: if inst.errno == errno.EEXIST: dircleanup.close() raise util.Abort(_("destination '%s' already exists") % dest) raise destlock = copystore(ui, srcrepo, destpath) # Recomputing branch cache might be slow on big repos, # so just copy it dstcachedir = os.path.join(destpath, 'cache') srcbranchcache = srcrepo.sjoin('cache/branchheads') dstbranchcache = os.path.join(dstcachedir, 'branchheads') if os.path.exists(srcbranchcache): if not os.path.exists(dstcachedir): os.mkdir(dstcachedir) util.copyfile(srcbranchcache, dstbranchcache) # 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, inst: if inst.errno == errno.EEXIST: dircleanup.close() 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(): destpeer.local().clone(srcpeer, heads=revs, stream=stream) elif srcrepo: srcrepo.push(destpeer, revs=revs) else: raise util.Abort(_("clone from remote to remote not supported")) if dircleanup: dircleanup.close() # clone all bookmarks except divergent ones destrepo = destpeer.local() if destrepo and srcpeer.capable("pushkey"): rb = srcpeer.listkeys('bookmarks') marks = destrepo._bookmarks for k, n in rb.iteritems(): try: m = destrepo.lookup(n) marks[k] = m except error.RepoLookupError: pass if rb: marks.write() elif srcrepo and destpeer.capable("pushkey"): for k, n in srcrepo._bookmarks.iteritems(): destpeer.pushkey('bookmarks', k, '', hex(n)) if destrepo: fp = destrepo.opener("hgrc", "w", text=True) fp.write("[paths]\n") u = util.url(abspath) u.passwd = None defaulturl = str(u) fp.write("default = %s\n" % defaulturl) fp.close() destrepo.ui.setconfig('paths', 'default', defaulturl) 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.setcurrent(destrepo, update) return srcpeer, destpeer finally: release(srclock, destlock) if dircleanup is not None: dircleanup.cleanup() if srcpeer is not None: srcpeer.close() 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) 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) 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) # XXX once graphlog extension makes it into core, # should be replaced by a if graph/else 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, other, revs, force=opts.get('force')) o = outgoing.missing if not o: scmutil.nochangesfound(repo.ui, repo, outgoing.excluded) return None return o 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 = _outgoing(ui, repo, dest, opts) if o is None: 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() 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""" return verifymod.verify(repo) 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) # copy bundle-specific options r = src.config('bundle', 'mainreporoot') if r: dst.setconfig('bundle', 'mainreporoot', r) # 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) v = src.config('web', 'cacerts') if v: dst.setconfig('web', 'cacerts', util.expandpath(v)) return dst