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annotate www/toycans.png @ 1572:da1bf31ed322 draft

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Tweak the "ignoring return value" fortify workaround for readlinkat. We zero the buffer and if the link read fails that's left alone, so it's ok for the symlink not to be there. Unfortunately, typecasting the return value to (void) doesn't shut up gcc, and having an if(); with the semicolon on the same line doesn't shut up llvm. (The semicolon on a new line would, but C does not have significant whitespace and I'm not going to humor llvm if it plans to start.) So far, empty curly brackets consistently get the warning to shut up.
author Rob Landley <rob@landley.net>
date --> -->
 
 
<type 'exceptions.AttributeError'>		Python 2.7.17: /usr/bin/python
Sun Apr 28 11:50:09 2024

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.

 /home/rlandley/landley.net/hg/hgwebdir.cgi in <module>()
     36 
     37 def make_web_app():
     38     return hgwebdir("hgweb.config")
     39 
=>   40 wsgicgi.launch(wsgiapplication(make_web_app))
wsgicgi = <module 'mercurial.hgweb.wsgicgi' from '/usr/lib...on2.7/dist-packages/mercurial/hgweb/wsgicgi.pyc'>, wsgicgi.launch = <function launch>, wsgiapplication = <function wsgiapplication>, make_web_app = <function make_web_app>
 /usr/lib/python2.7/dist-packages/mercurial/hgweb/wsgicgi.py in launch(application=<function run_wsgi>)
     83     content = application(environ, start_response)
     84     try:
=>   85         for chunk in content:
     86             write(chunk)
     87         if not headers_sent:
chunk = '/hg/toybox/file/da1bf31ed322/www/">browse</a></l...<th class="date">date</th>\n <td class="date age">', content = <generator object run_wsgi>
 /usr/lib/python2.7/dist-packages/mercurial/hgweb/hgwebdir_mod.py in run_wsgi(self=<mercurial.hgweb.hgwebdir_mod.hgwebdir object>, req=<mercurial.hgweb.request.wsgirequest object>)
    227         with profiling.profile(self.ui, enabled=profile):
    228             try:
=>  229                 for r in self._runwsgi(req):
    230                     yield r
    231             finally:
r = '/hg/toybox/file/da1bf31ed322/www/">browse</a></l...<th class="date">date</th>\n <td class="date age">', self = <mercurial.hgweb.hgwebdir_mod.hgwebdir object>, self._runwsgi = <bound method hgwebdir._runwsgi of <mercurial.hgweb.hgwebdir_mod.hgwebdir object>>, req = <mercurial.hgweb.request.wsgirequest object>
 /usr/lib/python2.7/dist-packages/mercurial/hgweb/hgweb_mod.py in run_wsgi(self=<mercurial.hgweb.hgweb_mod.hgweb object>, req=<mercurial.hgweb.request.wsgirequest object>)
    316             profile = repo.ui.configbool('profiling', 'enabled')
    317             with profiling.profile(repo.ui, enabled=profile):
=>  318                 for r in self._runwsgi(req, repo):
    319                     yield r
    320 
r = '/hg/toybox/file/da1bf31ed322/www/">browse</a></l...<th class="date">date</th>\n <td class="date age">', self = <mercurial.hgweb.hgweb_mod.hgweb object>, self._runwsgi = <bound method hgweb._runwsgi of <mercurial.hgweb.hgweb_mod.hgweb object>>, req = <mercurial.hgweb.request.wsgirequest object>, repo = <filteredrepo:served <mercurial.localrepo.localrepository object>>
 /usr/lib/python2.7/dist-packages/mercurial/util.py in increasingchunks(source=<generator object _flatten>, min=4096, max=65536)
   1015     buf = []
   1016     blen = 0
=> 1017     for chunk in source:
   1018         buf.append(chunk)
   1019         blen += len(chunk)
chunk = '">\n ', source = <generator object _flatten>
 /usr/lib/python2.7/dist-packages/mercurial/templater.py in _flatten(thing=<generator object runtemplate>)
   1279                 yield pycompat.bytestr(i)
   1280             else:
=> 1281                 for j in _flatten(i):
   1282                     yield j
   1283 
j = '">\n<span>Ignore whitespace changes - </span>\n<sp..."ignorewseol-checkbox" type="checkbox" />\n</form>', global _flatten = <function _flatten>, i = <generator object runmap>
 /usr/lib/python2.7/dist-packages/mercurial/templater.py in _flatten(thing=<generator object runmap>)
   1270         yield pycompat.bytestr(thing)
   1271     else:
=> 1272         for i in thing:
   1273             i = templatekw.unwraphybrid(i)
   1274             if isinstance(i, bytes):
i undefined, thing = <generator object runmap>
 /usr/lib/python2.7/dist-packages/mercurial/templater.py in runmap(context=<mercurial.templater.engine object>, mapping={'annotate': <function annotate>, 'author': 'Rob Landley <rob@landley.net>', 'bookmarks': [], 'branch': [], 'branches': [], 'child': <function <lambda>>, 'date': (1416871403.0, 21600), 'desc': 'Tweak the "ignoring return value" fortify workar...brackets consistently get the warning to shut up.', 'diffopts': {'context': 3, 'git': False, 'ignoreblanklines': False, 'ignorews': False, 'ignorewsamount': False, 'ignorewseol': False, 'index': 0, 'nobinary': False, 'nodates': False, 'noprefix': False, ...}, 'extra': {'branch': 'default'}, ...}, data=((<function runsymbol>, 'annotate'), (<function runtemplate>, [(<function runstring>, '\n<tr id="'), (<function runsymbol>, 'lineid'), (<function runstring>, '"'), (<function ifeq>, [(<function runsymbol>, 'node'), (<function runsymbol>, 'originalnode'), (<function runstring>, ' class="thisrev"')]), (<function runstring>, '>\n<td class="annotate parity'), (<function runsymbol>, 'blockparity'), (<function runstring>, '">\n'), (<function if_>, [(<function runsymbol>, 'blockhead'), (<function runtemplate>, [...])]), (<function runstring>, '\n<div class="annotate-info">\n<div>\n<a href="'), (<function runfilter>, ((<function runsymbol>, 'url'), <function urlescape>)), (<function runstring>, 'annotate/'), (<function runfilter>, ((<function runsymbol>, 'node'), <function short>)), (<function runstring>, '/'), (<function runfilter>, ((<function runsymbol>, 'file'), <function urlescape>)), (<function runmap>, ((<function runsymbol>, 'sessionvars'), (<function runtemplate>, [...]))), (<function runstring>, '#l'), (<function runsymbol>, 'targetline'), (<function runstring>, '">\n'), (<function runfilter>, ((<function runsymbol>, 'node'), <function short>)), (<function runstring>, '</a>\n'), ...])))
    460                 raise error.ParseError(_("%r is not iterable") % d)
    461 
=>  462     for i, v in enumerate(diter):
    463         lm = mapping.copy()
    464         lm['index'] = i
i undefined, v undefined, builtin enumerate = <type 'enumerate'>, diter = <generator object annotate>
 /usr/lib/python2.7/dist-packages/mercurial/hgweb/webcommands.py in annotate(**map={'annotate': <function annotate>, 'author': 'Rob Landley <rob@landley.net>', 'bookmarks': [], 'branch': [], 'branches': [], 'child': <function <lambda>>, 'date': (1416871403.0, 21600), 'desc': 'Tweak the "ignoring return value" fortify workar...brackets consistently get the warning to shut up.', 'diffopts': {'context': 3, 'git': False, 'ignoreblanklines': False, 'ignorews': False, 'ignorewsamount': False, 'ignorewseol': False, 'index': 0, 'nobinary': False, 'nodates': False, 'noprefix': False, ...}, 'extra': {'branch': 'default'}, ...})
    907         blockparitygen = paritygen(1)
    908         for lineno, (aline, l) in enumerate(lines):
=>  909             f = aline.fctx
    910             rev = f.rev()
    911             if rev != previousrev:
f undefined, aline = (<filectx www/toycans.png@7a82432fa970>, 1), aline.fctx undefined

<type 'exceptions.AttributeError'>: 'tuple' object has no attribute 'fctx'
      args = ("'tuple' object has no attribute 'fctx'",)
      message = "'tuple' object has no attribute 'fctx'"