hgwebdir: ignore hgrc parse errors while building the index page

An error in the .hg/hgrc file from a repository would prevent the
following repos from being shown in the index page.

The IOError handling was unnecessary - it's already handled in
readconfig.

This should fix issue731.

The error in the .hg/hgrc file will still prevent the repo from
being exported with hgweb.

mercurial/hgweb/hgwebdir_mod.py

@@ -1,242 +1,243
 # hgweb/hgwebdir_mod.py - Web interface for a directory of repositories.
 #
 # Copyright 21 May 2005 - (c) 2005 Jake Edge <[e-mail]>
 # Copyright 2005, 2006 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 from mercurial import demandimport; demandimport.enable()
 import os, mimetools, cStringIO
 from mercurial.i18n import gettext as _
 from mercurial import ui, hg, util, templater
 from common import get_mtime, staticfile, style_map, paritygen
 from hgweb_mod import hgweb
 
 # This is a stopgap
 class hgwebdir(object):
     def __init__(self, config, parentui=None):
         def cleannames(items):
             return [(util.pconvert(name.strip(os.sep)), path)
                     for name, path in items]
 
         self.parentui = parentui
         self.motd = None
         self.style = None
         self.stripecount = None
         self.repos_sorted = ('name', False)
         if isinstance(config, (list, tuple)):
             self.repos = cleannames(config)
             self.repos_sorted = ('', False)
         elif isinstance(config, dict):
             self.repos = cleannames(config.items())
             self.repos.sort()
         else:
             if isinstance(config, util.configparser):
                 cp = config
             else:
                 cp = util.configparser()
                 cp.read(config)
             self.repos = []
             if cp.has_section('web'):
                 if cp.has_option('web', 'motd'):
                     self.motd = cp.get('web', 'motd')
                 if cp.has_option('web', 'style'):
                     self.style = cp.get('web', 'style')
                 if cp.has_option('web', 'stripes'):
                     self.stripecount = int(cp.get('web', 'stripes'))
             if cp.has_section('paths'):
                 self.repos.extend(cleannames(cp.items('paths')))
             if cp.has_section('collections'):
                 for prefix, root in cp.items('collections'):
                     for path in util.walkrepos(root):
                         repo = os.path.normpath(path)
                         name = repo
                         if name.startswith(prefix):
                             name = name[len(prefix):]
                         self.repos.append((name.lstrip(os.sep), repo))
             self.repos.sort()
 
     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(tmpl("header", encoding=util._encoding, **map)))
             msg = mimetools.Message(header_file, 0)
             req.header(msg.items())
             yield header_file.read()
 
         def footer(**map):
             yield tmpl("footer", **map)
 
         def motd(**map):
             if self.motd is not None:
                 yield self.motd
             else:
                 yield config('web', 'motd', '')
 
         parentui = self.parentui or ui.ui(report_untrusted=False,
                                           interactive=False)
 
         def config(section, name, default=None, untrusted=True):
             return parentui.config(section, name, default, untrusted)
 
         url = req.env['REQUEST_URI'].split('?')[0]
         if not url.endswith('/'):
             url += '/'
 
         staticurl = config('web', 'staticurl') or url + 'static/'
         if not staticurl.endswith('/'):
             staticurl += '/'
 
         style = self.style
         if style is None:
             style = config('web', 'style', '')
         if req.form.has_key('style'):
             style = req.form['style'][0]
         if self.stripecount is None:
             self.stripecount = int(config('web', 'stripes', 1))
         mapfile = style_map(templater.templatepath(), style)
         tmpl = templater.templater(mapfile, templater.common_filters,
                                    defaults={"header": header,
                                              "footer": footer,
                                              "motd": motd,
                                              "url": url,
                                              "staticurl": staticurl})
 
         def archivelist(ui, nodeid, url):
             allowed = ui.configlist("web", "allow_archive", untrusted=True)
             for i in [('zip', '.zip'), ('gz', '.tar.gz'), ('bz2', '.tar.bz2')]:
                 if i[0] in allowed or ui.configbool("web", "allow" + i[0],
                                                     untrusted=True):
                     yield {"type" : i[0], "extension": i[1],
                            "node": nodeid, "url": url}
 
         def entries(sortcolumn="", descending=False, **map):
             def sessionvars(**map):
                 fields = []
                 if req.form.has_key('style'):
                     style = req.form['style'][0]
                     if style != get('web', 'style', ''):
                         fields.append(('style', style))
 
                 separator = url[-1] == '?' and ';' or '?'
                 for name, value in fields:
                     yield dict(name=name, value=value, separator=separator)
                     separator = ';'
 
             rows = []
             parity = paritygen(self.stripecount)
             for name, path in self.repos:
                 u = ui.ui(parentui=parentui)
                 try:
                     u.readconfig(os.path.join(path, '.hg', 'hgrc'))
-                except IOError:
-                    pass
+                except Exception, e:
+                    u.warn(_('error reading %s/.hg/hgrc: %s\n' % (path, e)))
+                    continue
                 def get(section, name, default=None):
                     return u.config(section, name, default, untrusted=True)
 
                 if u.configbool("web", "hidden", untrusted=True):
                     continue
 
                 url = ('/'.join([req.env["REQUEST_URI"].split('?')[0], name])
                        .replace("//", "/")) + '/'
 
                 # update time with local timezone
                 try:
                     d = (get_mtime(path), util.makedate()[1])
                 except OSError:
                     continue
 
                 contact = (get("ui", "username") or # preferred
                            get("web", "contact") or # deprecated
                            get("web", "author", "")) # also
                 description = get("web", "description", "")
                 name = get("web", "name", name)
                 row = dict(contact=contact or "unknown",
                            contact_sort=contact.upper() or "unknown",
                            name=name,
                            name_sort=name,
                            url=url,
                            description=description or "unknown",
                            description_sort=description.upper() or "unknown",
                            lastchange=d,
                            lastchange_sort=d[1]-d[0],
                            sessionvars=sessionvars,
                            archives=archivelist(u, "tip", url))
                 if (not sortcolumn
                     or (sortcolumn, descending) == self.repos_sorted):
                     # fast path for unsorted output
                     row['parity'] = parity.next()
                     yield row
                 else:
                     rows.append((row["%s_sort" % sortcolumn], row))
             if rows:
                 rows.sort()
                 if descending:
                     rows.reverse()
                 for key, row in rows:
                     row['parity'] = parity.next()
                     yield row
 
         try:
             virtual = req.env.get("PATH_INFO", "").strip('/')
             if virtual.startswith('static/'):
                 static = os.path.join(templater.templatepath(), 'static')
                 fname = virtual[7:]
                 req.write(staticfile(static, fname, req) or
                           tmpl('error', error='%r not found' % fname))
             elif virtual:
                 while virtual:
                     real = dict(self.repos).get(virtual)
                     if real:
                         break
                     up = virtual.rfind('/')
                     if up < 0:
                         break
                     virtual = virtual[:up]
                 if real:
                     req.env['REPO_NAME'] = virtual
                     try:
                         repo = hg.repository(parentui, real)
                         hgweb(repo).run_wsgi(req)
                     except IOError, inst:
                         req.write(tmpl("error", error=inst.strerror))
                     except hg.RepoError, inst:
                         req.write(tmpl("error", error=str(inst)))
                 else:
                     req.write(tmpl("notfound", repo=virtual))
             else:
                 if req.form.has_key('static'):
                     static = os.path.join(templater.templatepath(), "static")
                     fname = req.form['static'][0]
                     req.write(staticfile(static, fname, req)
                               or tmpl("error", error="%r not found" % fname))
                 else:
                     sortable = ["name", "description", "contact", "lastchange"]
                     sortcolumn, descending = self.repos_sorted
                     if req.form.has_key('sort'):
                         sortcolumn = req.form['sort'][0]
                         descending = sortcolumn.startswith('-')
                         if descending:
                             sortcolumn = sortcolumn[1:]
                         if sortcolumn not in sortable:
                             sortcolumn = ""
 
                     sort = [("sort_%s" % column,
                              "%s%s" % ((not descending and column == sortcolumn)
                                        and "-" or "", column))
                             for column in sortable]
                     req.write(tmpl("index", entries=entries,
                                    sortcolumn=sortcolumn, descending=descending,
                                    **dict(sort)))
         finally:
             tmpl = None