# hgweb/hgweb_mod.py - Web interface for a repository. # # Copyright 21 May 2005 - (c) 2005 Jake Edge # 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. import os import os.path import mimetypes from mercurial.demandload import demandload demandload(globals(), "re zlib ConfigParser mimetools cStringIO sys tempfile") demandload(globals(), "mercurial:mdiff,ui,hg,util,archival,streamclone,patch") demandload(globals(), "mercurial:templater") demandload(globals(), "mercurial.hgweb.common:get_mtime,staticfile") from mercurial.node import * from mercurial.i18n import gettext as _ def _up(p): if p[0] != "/": p = "/" + p if p[-1] == "/": p = p[:-1] up = os.path.dirname(p) if up == "/": return "/" return up + "/" class hgweb(object): def __init__(self, repo, name=None): if type(repo) == type(""): self.repo = hg.repository(ui.ui(), repo) else: self.repo = repo self.mtime = -1 self.reponame = name self.archives = 'zip', 'gz', 'bz2' self.stripecount = 1 self.templatepath = self.repo.ui.config("web", "templates", templater.templatepath()) def refresh(self): mtime = get_mtime(self.repo.root) if mtime != self.mtime: self.mtime = mtime self.repo = hg.repository(self.repo.ui, self.repo.root) self.maxchanges = int(self.repo.ui.config("web", "maxchanges", 10)) self.stripecount = int(self.repo.ui.config("web", "stripes", 1)) self.maxshortchanges = int(self.repo.ui.config("web", "maxshortchanges", 60)) self.maxfiles = int(self.repo.ui.config("web", "maxfiles", 10)) self.allowpull = self.repo.ui.configbool("web", "allowpull", True) def archivelist(self, nodeid): allowed = self.repo.ui.configlist("web", "allow_archive") for i in self.archives: if i in allowed or self.repo.ui.configbool("web", "allow" + i): yield {"type" : i, "node" : nodeid, "url": ""} def listfiles(self, files, mf): for f in files[:self.maxfiles]: yield self.t("filenodelink", node=hex(mf[f]), file=f) if len(files) > self.maxfiles: yield self.t("fileellipses") def listfilediffs(self, files, changeset): for f in files[:self.maxfiles]: yield self.t("filedifflink", node=hex(changeset), file=f) if len(files) > self.maxfiles: yield self.t("fileellipses") def siblings(self, siblings=[], rev=None, hiderev=None, **args): if not rev: rev = lambda x: "" siblings = [s for s in siblings if s != nullid] if len(siblings) == 1 and rev(siblings[0]) == hiderev: return for s in siblings: yield dict(node=hex(s), rev=rev(s), **args) def renamelink(self, fl, node): r = fl.renamed(node) if r: return [dict(file=r[0], node=hex(r[1]))] return [] def showtag(self, t1, node=nullid, **args): for t in self.repo.nodetags(node): yield self.t(t1, tag=t, **args) def diff(self, node1, node2, files): def filterfiles(filters, files): l = [x for x in files if x in filters] for t in filters: if t and t[-1] != os.sep: t += os.sep l += [x for x in files if x.startswith(t)] return l parity = [0] def diffblock(diff, f, fn): yield self.t("diffblock", lines=prettyprintlines(diff), parity=parity[0], file=f, filenode=hex(fn or nullid)) parity[0] = 1 - parity[0] def prettyprintlines(diff): for l in diff.splitlines(1): if l.startswith('+'): yield self.t("difflineplus", line=l) elif l.startswith('-'): yield self.t("difflineminus", line=l) elif l.startswith('@'): yield self.t("difflineat", line=l) else: yield self.t("diffline", line=l) r = self.repo cl = r.changelog mf = r.manifest change1 = cl.read(node1) change2 = cl.read(node2) mmap1 = mf.read(change1[0]) mmap2 = mf.read(change2[0]) date1 = util.datestr(change1[2]) date2 = util.datestr(change2[2]) modified, added, removed, deleted, unknown = r.status(node1, node2)[:5] if files: modified, added, removed = map(lambda x: filterfiles(files, x), (modified, added, removed)) diffopts = patch.diffopts(self.repo.ui) for f in modified: to = r.file(f).read(mmap1[f]) tn = r.file(f).read(mmap2[f]) yield diffblock(mdiff.unidiff(to, date1, tn, date2, f, opts=diffopts), f, tn) for f in added: to = None tn = r.file(f).read(mmap2[f]) yield diffblock(mdiff.unidiff(to, date1, tn, date2, f, opts=diffopts), f, tn) for f in removed: to = r.file(f).read(mmap1[f]) tn = None yield diffblock(mdiff.unidiff(to, date1, tn, date2, f, opts=diffopts), f, tn) def changelog(self, pos, shortlog=False): def changenav(**map): def seq(factor, maxchanges=None): if maxchanges: yield maxchanges if maxchanges >= 20 and maxchanges <= 40: yield 50 else: yield 1 * factor yield 3 * factor for f in seq(factor * 10): yield f l = [] last = 0 maxchanges = shortlog and self.maxshortchanges or self.maxchanges for f in seq(1, maxchanges): if f < maxchanges or f <= last: continue if f > count: break last = f r = "%d" % f if pos + f < count: l.append(("+" + r, pos + f)) if pos - f >= 0: l.insert(0, ("-" + r, pos - f)) yield {"rev": 0, "label": "(0)"} for label, rev in l: yield {"label": label, "rev": rev} yield {"label": "tip", "rev": "tip"} def changelist(**map): parity = (start - end) & 1 cl = self.repo.changelog l = [] # build a list in forward order for efficiency for i in range(start, end): n = cl.node(i) changes = cl.read(n) hn = hex(n) l.insert(0, {"parity": parity, "author": changes[1], "parent": self.siblings(cl.parents(n), cl.rev, cl.rev(n) - 1), "child": self.siblings(cl.children(n), cl.rev, cl.rev(n) + 1), "changelogtag": self.showtag("changelogtag",n), "manifest": hex(changes[0]), "desc": changes[4], "date": changes[2], "files": self.listfilediffs(changes[3], n), "rev": i, "node": hn}) parity = 1 - parity for e in l: yield e maxchanges = shortlog and self.maxshortchanges or self.maxchanges cl = self.repo.changelog mf = cl.read(cl.tip())[0] count = cl.count() start = max(0, pos - maxchanges + 1) end = min(count, start + maxchanges) pos = end - 1 yield self.t(shortlog and 'shortlog' or 'changelog', changenav=changenav, manifest=hex(mf), rev=pos, changesets=count, entries=changelist, archives=self.archivelist("tip")) def search(self, query): def changelist(**map): cl = self.repo.changelog count = 0 qw = query.lower().split() def revgen(): for i in range(cl.count() - 1, 0, -100): l = [] for j in range(max(0, i - 100), i): n = cl.node(j) changes = cl.read(n) l.append((n, j, changes)) l.reverse() for e in l: yield e for n, i, changes in revgen(): miss = 0 for q in qw: if not (q in changes[1].lower() or q in changes[4].lower() or q in " ".join(changes[3][:20]).lower()): miss = 1 break if miss: continue count += 1 hn = hex(n) yield self.t('searchentry', parity=self.stripes(count), author=changes[1], parent=self.siblings(cl.parents(n), cl.rev), child=self.siblings(cl.children(n), cl.rev), changelogtag=self.showtag("changelogtag",n), manifest=hex(changes[0]), desc=changes[4], date=changes[2], files=self.listfilediffs(changes[3], n), rev=i, node=hn) if count >= self.maxchanges: break cl = self.repo.changelog mf = cl.read(cl.tip())[0] yield self.t('search', query=query, manifest=hex(mf), entries=changelist) def changeset(self, nodeid): cl = self.repo.changelog n = self.repo.lookup(nodeid) nodeid = hex(n) changes = cl.read(n) p1 = cl.parents(n)[0] files = [] mf = self.repo.manifest.read(changes[0]) for f in changes[3]: files.append(self.t("filenodelink", filenode=hex(mf.get(f, nullid)), file=f)) def diff(**map): yield self.diff(p1, n, None) yield self.t('changeset', diff=diff, rev=cl.rev(n), node=nodeid, parent=self.siblings(cl.parents(n), cl.rev), child=self.siblings(cl.children(n), cl.rev), changesettag=self.showtag("changesettag",n), manifest=hex(changes[0]), author=changes[1], desc=changes[4], date=changes[2], files=files, archives=self.archivelist(nodeid)) def filelog(self, f, filenode): cl = self.repo.changelog fl = self.repo.file(f) filenode = hex(fl.lookup(filenode)) count = fl.count() def entries(**map): l = [] parity = (count - 1) & 1 for i in range(count): n = fl.node(i) lr = fl.linkrev(n) cn = cl.node(lr) cs = cl.read(cl.node(lr)) l.insert(0, {"parity": parity, "filenode": hex(n), "filerev": i, "file": f, "node": hex(cn), "author": cs[1], "date": cs[2], "rename": self.renamelink(fl, n), "parent": self.siblings(fl.parents(n), fl.rev, file=f), "child": self.siblings(fl.children(n), fl.rev, file=f), "desc": cs[4]}) parity = 1 - parity for e in l: yield e yield self.t("filelog", file=f, filenode=filenode, entries=entries) def filerevision(self, f, node): fl = self.repo.file(f) n = fl.lookup(node) node = hex(n) text = fl.read(n) changerev = fl.linkrev(n) cl = self.repo.changelog cn = cl.node(changerev) cs = cl.read(cn) mfn = cs[0] mt = mimetypes.guess_type(f)[0] rawtext = text if util.binary(text): mt = mt or 'application/octet-stream' text = "(binary:%s)" % mt mt = mt or 'text/plain' def lines(): for l, t in enumerate(text.splitlines(1)): yield {"line": t, "linenumber": "% 6d" % (l + 1), "parity": self.stripes(l)} yield self.t("filerevision", file=f, filenode=node, path=_up(f), text=lines(), raw=rawtext, mimetype=mt, rev=changerev, node=hex(cn), manifest=hex(mfn), author=cs[1], date=cs[2], parent=self.siblings(fl.parents(n), fl.rev, file=f), child=self.siblings(fl.children(n), fl.rev, file=f), rename=self.renamelink(fl, n), permissions=self.repo.manifest.read(mfn).execf(f)) def fileannotate(self, f, node): bcache = {} ncache = {} fl = self.repo.file(f) n = fl.lookup(node) node = hex(n) changerev = fl.linkrev(n) cl = self.repo.changelog cn = cl.node(changerev) cs = cl.read(cn) mfn = cs[0] def annotate(**map): parity = 0 last = None for r, l in fl.annotate(n): try: cnode = ncache[r] except KeyError: cnode = ncache[r] = self.repo.changelog.node(r) try: name = bcache[r] except KeyError: cl = self.repo.changelog.read(cnode) bcache[r] = name = self.repo.ui.shortuser(cl[1]) if last != cnode: parity = 1 - parity last = cnode yield {"parity": parity, "node": hex(cnode), "rev": r, "author": name, "file": f, "line": l} yield self.t("fileannotate", file=f, filenode=node, annotate=annotate, path=_up(f), rev=changerev, node=hex(cn), manifest=hex(mfn), author=cs[1], date=cs[2], rename=self.renamelink(fl, n), parent=self.siblings(fl.parents(n), fl.rev, file=f), child=self.siblings(fl.children(n), fl.rev, file=f), permissions=self.repo.manifest.read(mfn).execf(f)) def manifest(self, mnode, path): man = self.repo.manifest mn = man.lookup(mnode) mnode = hex(mn) mf = man.read(mn) rev = man.rev(mn) changerev = man.linkrev(mn) node = self.repo.changelog.node(changerev) files = {} p = path[1:] if p and p[-1] != "/": p += "/" l = len(p) for f,n in mf.items(): if f[:l] != p: continue remain = f[l:] if "/" in remain: short = remain[:remain.index("/") + 1] # bleah files[short] = (f, None) else: short = os.path.basename(remain) files[short] = (f, n) def filelist(**map): parity = 0 fl = files.keys() fl.sort() for f in fl: full, fnode = files[f] if not fnode: continue yield {"file": full, "manifest": mnode, "filenode": hex(fnode), "parity": self.stripes(parity), "basename": f, "permissions": mf.execf(full)} parity += 1 def dirlist(**map): parity = 0 fl = files.keys() fl.sort() for f in fl: full, fnode = files[f] if fnode: continue yield {"parity": self.stripes(parity), "path": os.path.join(path, f), "manifest": mnode, "basename": f[:-1]} parity += 1 yield self.t("manifest", manifest=mnode, rev=rev, node=hex(node), path=path, up=_up(path), fentries=filelist, dentries=dirlist, archives=self.archivelist(hex(node))) def tags(self): cl = self.repo.changelog mf = cl.read(cl.tip())[0] i = self.repo.tagslist() i.reverse() def entries(notip=False, **map): parity = 0 for k,n in i: if notip and k == "tip": continue yield {"parity": self.stripes(parity), "tag": k, "tagmanifest": hex(cl.read(n)[0]), "date": cl.read(n)[2], "node": hex(n)} parity += 1 yield self.t("tags", manifest=hex(mf), entries=lambda **x: entries(False, **x), entriesnotip=lambda **x: entries(True, **x)) def summary(self): cl = self.repo.changelog mf = cl.read(cl.tip())[0] i = self.repo.tagslist() i.reverse() def tagentries(**map): parity = 0 count = 0 for k,n in i: if k == "tip": # skip tip continue; count += 1 if count > 10: # limit to 10 tags break; c = cl.read(n) m = c[0] t = c[2] yield self.t("tagentry", parity = self.stripes(parity), tag = k, node = hex(n), date = t, tagmanifest = hex(m)) parity += 1 def changelist(**map): parity = 0 cl = self.repo.changelog l = [] # build a list in forward order for efficiency for i in range(start, end): n = cl.node(i) changes = cl.read(n) hn = hex(n) t = changes[2] l.insert(0, self.t( 'shortlogentry', parity = parity, author = changes[1], manifest = hex(changes[0]), desc = changes[4], date = t, rev = i, node = hn)) parity = 1 - parity yield l cl = self.repo.changelog mf = cl.read(cl.tip())[0] count = cl.count() start = max(0, count - self.maxchanges) end = min(count, start + self.maxchanges) yield self.t("summary", desc = self.repo.ui.config("web", "description", "unknown"), owner = (self.repo.ui.config("ui", "username") or # preferred self.repo.ui.config("web", "contact") or # deprecated self.repo.ui.config("web", "author", "unknown")), # also lastchange = (0, 0), # FIXME manifest = hex(mf), tags = tagentries, shortlog = changelist, archives=self.archivelist("tip")) def filediff(self, file, changeset): cl = self.repo.changelog n = self.repo.lookup(changeset) changeset = hex(n) p1 = cl.parents(n)[0] cs = cl.read(n) mf = self.repo.manifest.read(cs[0]) def diff(**map): yield self.diff(p1, n, [file]) yield self.t("filediff", file=file, filenode=hex(mf.get(file, nullid)), node=changeset, rev=self.repo.changelog.rev(n), parent=self.siblings(cl.parents(n), cl.rev), child=self.siblings(cl.children(n), cl.rev), diff=diff) archive_specs = { 'bz2': ('application/x-tar', 'tbz2', '.tar.bz2', None), 'gz': ('application/x-tar', 'tgz', '.tar.gz', None), 'zip': ('application/zip', 'zip', '.zip', None), } def archive(self, req, cnode, type_): reponame = re.sub(r"\W+", "-", os.path.basename(self.reponame)) name = "%s-%s" % (reponame, short(cnode)) mimetype, artype, extension, encoding = self.archive_specs[type_] headers = [('Content-type', mimetype), ('Content-disposition', 'attachment; filename=%s%s' % (name, extension))] if encoding: headers.append(('Content-encoding', encoding)) req.header(headers) archival.archive(self.repo, req.out, cnode, artype, prefix=name) # add tags to things # tags -> list of changesets corresponding to tags # find tag, changeset, file def cleanpath(self, path): p = util.normpath(path) if p[:2] == "..": raise Exception("suspicious path") return p def run(self): if not os.environ.get('GATEWAY_INTERFACE', '').startswith("CGI/1."): raise RuntimeError("This function is only intended to be called while running as a CGI script.") import mercurial.hgweb.wsgicgi as wsgicgi from request import wsgiapplication def make_web_app(): return self wsgicgi.launch(wsgiapplication(make_web_app)) def run_wsgi(self, req): def header(**map): header_file = cStringIO.StringIO(''.join(self.t("header", **map))) msg = mimetools.Message(header_file, 0) req.header(msg.items()) yield header_file.read() def rawfileheader(**map): req.header([('Content-type', map['mimetype']), ('Content-disposition', 'filename=%s' % map['file']), ('Content-length', str(len(map['raw'])))]) yield '' def footer(**map): yield self.t("footer", motd=self.repo.ui.config("web", "motd", ""), **map) def expand_form(form): shortcuts = { 'cl': [('cmd', ['changelog']), ('rev', None)], 'sl': [('cmd', ['shortlog']), ('rev', None)], 'cs': [('cmd', ['changeset']), ('node', None)], 'f': [('cmd', ['file']), ('filenode', None)], 'fl': [('cmd', ['filelog']), ('filenode', None)], 'fd': [('cmd', ['filediff']), ('node', None)], 'fa': [('cmd', ['annotate']), ('filenode', None)], 'mf': [('cmd', ['manifest']), ('manifest', None)], 'ca': [('cmd', ['archive']), ('node', None)], 'tags': [('cmd', ['tags'])], 'tip': [('cmd', ['changeset']), ('node', ['tip'])], 'static': [('cmd', ['static']), ('file', None)] } for k in shortcuts.iterkeys(): if form.has_key(k): for name, value in shortcuts[k]: if value is None: value = form[k] form[name] = value del form[k] self.refresh() expand_form(req.form) m = os.path.join(self.templatepath, "map") style = self.repo.ui.config("web", "style", "") if req.form.has_key('style'): style = req.form['style'][0] if style: b = os.path.basename("map-" + style) p = os.path.join(self.templatepath, b) if os.path.isfile(p): m = p port = req.env["SERVER_PORT"] port = port != "80" and (":" + port) or "" uri = req.env["REQUEST_URI"] if "?" in uri: uri = uri.split("?")[0] url = "http://%s%s%s" % (req.env["SERVER_NAME"], port, uri) if not self.reponame: self.reponame = (self.repo.ui.config("web", "name") or uri.strip('/') or self.repo.root) self.t = templater.templater(m, templater.common_filters, defaults={"url": url, "repo": self.reponame, "header": header, "footer": footer, "rawfileheader": rawfileheader, }) if not req.form.has_key('cmd'): req.form['cmd'] = [self.t.cache['default'],] cmd = req.form['cmd'][0] method = getattr(self, 'do_' + cmd, None) if method: method(req) else: req.write(self.t("error")) def stripes(self, parity): "make horizontal stripes for easier reading" if self.stripecount: return (1 + parity / self.stripecount) & 1 else: return 0 def do_changelog(self, req): hi = self.repo.changelog.count() - 1 if req.form.has_key('rev'): hi = req.form['rev'][0] try: hi = self.repo.changelog.rev(self.repo.lookup(hi)) except hg.RepoError: req.write(self.search(hi)) # XXX redirect to 404 page? return req.write(self.changelog(hi)) def do_shortlog(self, req): hi = self.repo.changelog.count() - 1 if req.form.has_key('rev'): hi = req.form['rev'][0] try: hi = self.repo.changelog.rev(self.repo.lookup(hi)) except hg.RepoError: req.write(self.search(hi)) # XXX redirect to 404 page? return req.write(self.changelog(hi, shortlog = True)) def do_changeset(self, req): req.write(self.changeset(req.form['node'][0])) def do_manifest(self, req): req.write(self.manifest(req.form['manifest'][0], self.cleanpath(req.form['path'][0]))) def do_tags(self, req): req.write(self.tags()) def do_summary(self, req): req.write(self.summary()) def do_filediff(self, req): req.write(self.filediff(self.cleanpath(req.form['file'][0]), req.form['node'][0])) def do_file(self, req): req.write(self.filerevision(self.cleanpath(req.form['file'][0]), req.form['filenode'][0])) def do_annotate(self, req): req.write(self.fileannotate(self.cleanpath(req.form['file'][0]), req.form['filenode'][0])) def do_filelog(self, req): req.write(self.filelog(self.cleanpath(req.form['file'][0]), req.form['filenode'][0])) def do_heads(self, req): resp = " ".join(map(hex, self.repo.heads())) + "\n" req.httphdr("application/mercurial-0.1", length=len(resp)) req.write(resp) def do_branches(self, req): nodes = [] if req.form.has_key('nodes'): nodes = map(bin, req.form['nodes'][0].split(" ")) resp = cStringIO.StringIO() for b in self.repo.branches(nodes): resp.write(" ".join(map(hex, b)) + "\n") resp = resp.getvalue() req.httphdr("application/mercurial-0.1", length=len(resp)) req.write(resp) def do_between(self, req): if req.form.has_key('pairs'): pairs = [map(bin, p.split("-")) for p in req.form['pairs'][0].split(" ")] resp = cStringIO.StringIO() for b in self.repo.between(pairs): resp.write(" ".join(map(hex, b)) + "\n") resp = resp.getvalue() req.httphdr("application/mercurial-0.1", length=len(resp)) req.write(resp) def do_changegroup(self, req): req.httphdr("application/mercurial-0.1") nodes = [] if not self.allowpull: return if req.form.has_key('roots'): nodes = map(bin, req.form['roots'][0].split(" ")) z = zlib.compressobj() f = self.repo.changegroup(nodes, 'serve') while 1: chunk = f.read(4096) if not chunk: break req.write(z.compress(chunk)) req.write(z.flush()) def do_archive(self, req): changeset = self.repo.lookup(req.form['node'][0]) type_ = req.form['type'][0] allowed = self.repo.ui.configlist("web", "allow_archive") if (type_ in self.archives and (type_ in allowed or self.repo.ui.configbool("web", "allow" + type_, False))): self.archive(req, changeset, type_) return req.write(self.t("error")) def do_static(self, req): fname = req.form['file'][0] static = self.repo.ui.config("web", "static", os.path.join(self.templatepath, "static")) req.write(staticfile(static, fname, req) or self.t("error", error="%r not found" % fname)) def do_capabilities(self, req): caps = ['unbundle'] if self.repo.ui.configbool('server', 'uncompressed'): caps.append('stream=%d' % self.repo.revlogversion) resp = ' '.join(caps) req.httphdr("application/mercurial-0.1", length=len(resp)) req.write(resp) def check_perm(self, req, op, default): '''check permission for operation based on user auth. return true if op allowed, else false. default is policy to use if no config given.''' user = req.env.get('REMOTE_USER') deny = self.repo.ui.configlist('web', 'deny_' + op) if deny and (not user or deny == ['*'] or user in deny): return False allow = self.repo.ui.configlist('web', 'allow_' + op) return (allow and (allow == ['*'] or user in allow)) or default def do_unbundle(self, req): def bail(response, headers={}): length = int(req.env['CONTENT_LENGTH']) for s in util.filechunkiter(req, limit=length): # drain incoming bundle, else client will not see # response when run outside cgi script pass req.httphdr("application/mercurial-0.1", headers=headers) req.write('0\n') req.write(response) # require ssl by default, auth info cannot be sniffed and # replayed ssl_req = self.repo.ui.configbool('web', 'push_ssl', True) if ssl_req: if not req.env.get('HTTPS'): bail(_('ssl required\n')) return proto = 'https' else: proto = 'http' # do not allow push unless explicitly allowed if not self.check_perm(req, 'push', False): bail(_('push not authorized\n'), headers={'status': '401 Unauthorized'}) return req.httphdr("application/mercurial-0.1") their_heads = req.form['heads'][0].split(' ') def check_heads(): heads = map(hex, self.repo.heads()) return their_heads == [hex('force')] or their_heads == heads # fail early if possible if not check_heads(): bail(_('unsynced changes\n')) return # do not lock repo until all changegroup data is # streamed. save to temporary file. fd, tempname = tempfile.mkstemp(prefix='hg-unbundle-') fp = os.fdopen(fd, 'wb+') try: length = int(req.env['CONTENT_LENGTH']) for s in util.filechunkiter(req, limit=length): fp.write(s) lock = self.repo.lock() try: if not check_heads(): req.write('0\n') req.write(_('unsynced changes\n')) return fp.seek(0) # send addchangegroup output to client old_stdout = sys.stdout sys.stdout = cStringIO.StringIO() try: url = 'remote:%s:%s' % (proto, req.env.get('REMOTE_HOST', '')) ret = self.repo.addchangegroup(fp, 'serve', url) finally: val = sys.stdout.getvalue() sys.stdout = old_stdout req.write('%d\n' % ret) req.write(val) finally: lock.release() finally: fp.close() os.unlink(tempname) def do_stream_out(self, req): req.httphdr("application/mercurial-0.1") streamclone.stream_out(self.repo, req)