view mercurial/templates/paper/map @ 29544:024e8f82f3de

commandserver: add new forking server implemented without using SocketServer

SocketServer.ForkingMixIn of Python 2.x has a couple of issues, such as:

 - race condition that leads to 100% CPU usage (Python 2.6)
   https://bugs.python.org/issue21491
 - can't wait for children belonging to different process groups (Python 2.6)
 - leaves at least one zombie process (Python 2.6, 2.7)
   https://bugs.python.org/issue11109

The first two are critical because we do setpgid(0, 0) in child process to
isolate terminal signals. The last one isn't, but ForkingMixIn seems to be
doing silly. So there are two choices:

 a) backport and maintain SocketServer until we can drop support for Python 2.x
 b) replace SocketServer by simpler one and eliminate glue codes

I chose (b) because it's great time for getting rid of utterly complicated
SocketServer stuff, and preparing for future move towards prefork service.

New unixforkingservice is implemented loosely based on chg 531f8ef64be6. It
is monolithic but much simpler than SocketServer. unixservicehandler provides
customizing points for chg, and it will be shared with future prefork service.

Old unixservice class is still used by chgserver. It will be removed later.

Thanks to Jun Wu for investigating these issues.

default = 'shortlog'

mimetype = 'text/html; charset={encoding}'
header = header.tmpl
footer = footer.tmpl
search = search.tmpl

changelog = shortlog.tmpl
shortlog = shortlog.tmpl
shortlogentry = shortlogentry.tmpl
graph = graph.tmpl
help = help.tmpl
helptopics = helptopics.tmpl

helpentry = '
  <tr><td>
    <a href="{url|urlescape}help/{topic|escape}{sessionvars%urlparameter}">
      {if(basename, '{basename|escape}', '{topic|escape}')}
    </a>
  </td><td>
    {summary|escape}
  </td></tr>'

naventry = '<a href="{url|urlescape}log/{node|short}{sessionvars%urlparameter}">{label|escape}</a> '
navshortentry = '<a href="{url|urlescape}shortlog/{node|short}{sessionvars%urlparameter}">{label|escape}</a> '
navgraphentry = '<a href="{url|urlescape}graph/{node|short}{sessionvars%urlparameter}">{label|escape}</a> '
filenaventry = '<a href="{url|urlescape}log/{node|short}/{file|urlescape}{sessionvars%urlparameter}">{label|escape}</a> '
filedifflink = '<a href="{url|urlescape}diff/{node|short}/{file|urlescape}{sessionvars%urlparameter}">{file|escape}</a> '
filenodelink = '<a href="{url|urlescape}file/{node|short}/{file|urlescape}{sessionvars%urlparameter}">{file|escape}</a> '
filenolink = '{file|escape} '
fileellipses = '...'
diffstatlink = diffstat.tmpl
diffstatnolink = diffstat.tmpl
changelogentry = shortlogentry.tmpl
searchentry = shortlogentry.tmpl
changeset = changeset.tmpl
manifest = manifest.tmpl

nav = '{before%naventry} {after%naventry}'
navshort = '{before%navshortentry}{after%navshortentry}'
navgraph = '{before%navgraphentry}{after%navgraphentry}'
filenav = '{before%filenaventry}{after%filenaventry}'

direntry = '
  <tr class="fileline">
    <td class="name">
      <a href="{url|urlescape}file/{symrev}{path|urlescape}{sessionvars%urlparameter}">
        <img src="{staticurl|urlescape}coal-folder.png" alt="dir."/> {basename|escape}/
      </a>
      <a href="{url|urlescape}file/{symrev}{path|urlescape}/{emptydirs|urlescape}{sessionvars%urlparameter}">
        {emptydirs|escape}
      </a>
    </td>
    <td class="size"></td>
    <td class="permissions">drwxr-xr-x</td>
  </tr>'

fileentry = '
  <tr class="fileline">
    <td class="filename">
      <a href="{url|urlescape}file/{symrev}/{file|urlescape}{sessionvars%urlparameter}">
        <img src="{staticurl|urlescape}coal-file.png" alt="file"/> {basename|escape}
      </a>
    </td>
    <td class="size">{size}</td>
    <td class="permissions">{permissions|permissions}</td>
  </tr>'

filerevision = filerevision.tmpl
fileannotate = fileannotate.tmpl
filediff = filediff.tmpl
filecomparison = filecomparison.tmpl
filelog = filelog.tmpl
fileline = '
  <span id="{lineid}">{strip(line|escape, '\r\n')}</span><a href="#{lineid}"></a>'
filelogentry = filelogentry.tmpl

annotateline = '
  <tr id="{lineid}"{ifeq(node, originalnode, ' class="thisrev"')}>
    <td class="annotate">
      {if(blockhead,
          '<a href="{url|urlescape}annotate/{node|short}/{file|urlescape}{sessionvars%urlparameter}#l{targetline}">
             {rev}
           </a>')}
      <div class="annotate-info">
        <div>
          <a href="{url|urlescape}annotate/{node|short}/{file|urlescape}{sessionvars%urlparameter}#l{targetline}">
            {node|short}</a>
          {desc|escape|firstline}
        </div>
        <div><em>{author|obfuscate}</em></div>
        <div>parents: {parents%annotateparent}</div>
        <a href="{url|urlescape}diff/{node|short}/{file|urlescape}{sessionvars%urlparameter}">diff</a>
        <a href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}">changeset</a>
      </div>
    </td>
    <td class="source"><a href="#{lineid}">{linenumber}</a> {line|escape}</td>
  </tr>'
annotateparent = '
  <a href="{url|urlescape}annotate/{node|short}/{file|urlescape}{sessionvars%urlparameter}">{rev}</a>'
diffblock = '<div class="bottomline inc-lineno"><pre class="sourcelines wrap">{lines}</pre></div>'
difflineplus = '
  <span id="{lineid}" class="plusline">{strip(line|escape, '\r\n')}</span><a href="#{lineid}"></a>'
difflineminus = '
  <span id="{lineid}" class="minusline">{strip(line|escape, '\r\n')}</span><a href="#{lineid}"></a>'
difflineat = '
  <span id="{lineid}" class="atline">{strip(line|escape, '\r\n')}</span><a href="#{lineid}"></a>'
diffline = '
  <span id="{lineid}">{strip(line|escape, '\r\n')}</span><a href="#{lineid}"></a>'

comparisonblock ='
  <tbody class="block">
  {lines}
  </tbody>'
comparisonline = '
  <tr id="{lineid}">
    <td class="source {type}"><a href="#{lineid}">{leftlinenumber}</a> {leftline|escape}</td>
    <td class="source {type}"><a href="#{lineid}">{rightlinenumber}</a> {rightline|escape}</td>
  </tr>'

changelogparent = '
  <tr>
    <th class="parent">parent {rev}:</th>
    <td class="parent"><a href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}">{node|short}</a></td>
  </tr>'

changesetparent = '<a href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}">{node|short}</a> '

changesetparentdiff = '
  {changesetparent}
  {ifeq(node, basenode, '(current diff)', '({difffrom})')}'

difffrom = '<a href="{url|urlescape}rev/{node|short}:{originalnode|short}{sessionvars%urlparameter}">diff</a>'

filerevparent = '<a href="{url|urlescape}file/{node|short}/{file|urlescape}{sessionvars%urlparameter}">{rename%filerename}{node|short}</a> '
filerevchild = '<a href="{url|urlescape}file/{node|short}/{file|urlescape}{sessionvars%urlparameter}">{node|short}</a> '

filerename = '{file|escape}@'
filelogrename = '
  <span class="base">
    base
    <a href="{url|urlescape}file/{node|short}/{file|urlescape}{sessionvars%urlparameter}">
      {file|escape}@{node|short}
    </a>
  </span>'
fileannotateparent = '
  <tr>
    <td class="metatag">parent:</td>
    <td>
      <a href="{url|urlescape}annotate/{node|short}/{file|urlescape}{sessionvars%urlparameter}">
        {rename%filerename}{node|short}
      </a>
    </td>
  </tr>'
changesetchild = ' <a href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}">{node|short}</a>'
changelogchild = '
  <tr>
    <th class="child">child</th>
    <td class="child">
      <a href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}">
        {node|short}
      </a>
    </td>
  </tr>'
fileannotatechild = '
  <tr>
    <td class="metatag">child:</td>
    <td>
      <a href="{url|urlescape}annotate/{node|short}/{file|urlescape}{sessionvars%urlparameter}">
        {node|short}
      </a>
    </td>
  </tr>'
tags = tags.tmpl
tagentry = '
  <tr class="tagEntry">
    <td>
      <a href="{url|urlescape}rev/{tag|revescape}{sessionvars%urlparameter}">
        {tag|escape}
      </a>
    </td>
    <td class="node">
      <a href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}">
        {node|short}
      </a>
    </td>
  </tr>'
bookmarks = bookmarks.tmpl
bookmarkentry = '
  <tr class="tagEntry">
    <td>
      <a href="{url|urlescape}rev/{bookmark|revescape}{sessionvars%urlparameter}">
        {bookmark|escape}
      </a>
    </td>
    <td class="node">
      <a href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}">
        {node|short}
      </a>
    </td>
  </tr>'
branches = branches.tmpl
branchentry = '
  <tr class="tagEntry">
    <td>
      <a href="{url|urlescape}shortlog/{branch|revescape}{sessionvars%urlparameter}" class="{status}">
        {branch|escape}
      </a>
    </td>
    <td class="node">
      <a href="{url|urlescape}shortlog/{node|short}{sessionvars%urlparameter}" class="{status}">
        {node|short}
      </a>
    </td>
  </tr>'
changelogtag = '<span class="tag">{name|escape}</span> '
changesettag = '<span class="tag">{tag|escape}</span> '
changesetbookmark = '<span class="tag">{bookmark|escape}</span> '
changelogbranchhead = '<span class="branchhead">{name|escape}</span> '
changelogbranchname = '<span class="branchname">{name|escape}</span> '

filediffparent = '
  <tr>
    <th class="parent">parent {rev}:</th>
    <td class="parent"><a href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}">{node|short}</a></td>
  </tr>'
filelogparent = '
  <tr>
    <th>parent {rev}:</th>
    <td><a href="{url|urlescape}file/{node|short}/{file|urlescape}{sessionvars%urlparameter}">{node|short}</a></td>
  </tr>'
filediffchild = '
  <tr>
    <th class="child">child {rev}:</th>
    <td class="child"><a href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}">{node|short}</a>
  </td>
  </tr>'
filelogchild = '
  <tr>
    <th>child {rev}:</th>
    <td><a href="{url|urlescape}file/{node|short}/{file|urlescape}{sessionvars%urlparameter}">{node|short}</a></td>
  </tr>'

indexentry = '
  <tr>
    <td><a href="{url|urlescape}{sessionvars%urlparameter}">{name|escape}</a></td>
    <td>{description}</td>
    <td>{contact|obfuscate}</td>
    <td class="age">{lastchange|rfc822date}</td>
    <td class="indexlinks">{archives%indexarchiveentry}</td>
    <td>
        {if(isdirectory, '',
            '<a href="{url|urlescape}atom-log" title="subscribe to repository atom feed">
                <img class="atom-logo" src="{staticurl|urlescape}feed-icon-14x14.png" alt="subscribe to repository atom feed">
            </a>'
            )}
    </td>
  </tr>\n'
indexarchiveentry = '<a href="{url|urlescape}archive/{node|short}{extension|urlescape}">&nbsp;&darr;{type|escape}</a>'
index = index.tmpl
archiveentry = '
  <li>
    <a href="{url|urlescape}archive/{symrev}{extension|urlescape}{ifeq(path,'/','',path|urlescape)}">{type|escape}</a>
  </li>'
notfound = notfound.tmpl
error = error.tmpl
urlparameter = '{separator}{name}={value|urlescape}'
hiddenformentry = '<input type="hidden" name="{name}" value="{value|escape}" />'
breadcrumb = '&gt; <a href="{url|urlescape}">{name|escape}</a> '

searchhint = 'Find changesets by keywords (author, files, the commit message), revision
  number or hash, or <a href="{url|urlescape}help/revsets">revset expression</a>.'