storageutil: move metadata parsing and packing from revlog (API)
Parsing and writing of revision text metadata is likely identical
across storage backends. Let's move the code out of revlog so we
don't need to import the revlog module in order to use it.
Differential Revision: https://phab.mercurial-scm.org/D4754
This tests if hgweb and hgwebdir still work if the REQUEST_URI variable is
no longer passed with the request. Instead, SCRIPT_NAME and PATH_INFO
should be used from d74fc8dec2b4 onward to route the request.
$ hg init repo
$ cd repo
$ echo foo > bar
$ hg add bar
$ hg commit -m "test"
$ hg tip
changeset: 0:61c9426e69fe
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: test
$ cat > request.py <<EOF
> from __future__ import absolute_import
> import os
> import sys
> from mercurial.hgweb import (
> hgweb,
> hgwebdir,
> )
> from mercurial import (
> util,
> )
> stringio = util.stringio
>
> errors = stringio()
> input = stringio()
>
> def startrsp(status, headers):
> print('---- STATUS')
> print(status)
> print('---- HEADERS')
> print([i for i in headers if i[0] != 'ETag'])
> print('---- DATA')
> return output.write
>
> env = {
> 'wsgi.version': (1, 0),
> 'wsgi.url_scheme': 'http',
> 'wsgi.errors': errors,
> 'wsgi.input': input,
> 'wsgi.multithread': False,
> 'wsgi.multiprocess': False,
> 'wsgi.run_once': False,
> 'REQUEST_METHOD': 'GET',
> 'PATH_INFO': '/',
> 'SCRIPT_NAME': '',
> 'SERVER_NAME': '$LOCALIP',
> 'SERVER_PORT': os.environ['HGPORT'],
> 'SERVER_PROTOCOL': 'HTTP/1.0'
> }
>
> def process(app):
> content = app(env, startrsp)
> sys.stdout.write(output.getvalue())
> sys.stdout.write(''.join(content))
> getattr(content, 'close', lambda : None)()
> print('---- ERRORS')
> print(errors.getvalue())
>
> output = stringio()
> env['QUERY_STRING'] = 'style=atom'
> process(hgweb(b'.', name=b'repo'))
>
> output = stringio()
> env['QUERY_STRING'] = 'style=raw'
> process(hgwebdir({b'repo': b'.'}))
> EOF
$ "$PYTHON" request.py
---- STATUS
200 Script output follows
---- HEADERS
[('Content-Type', 'application/atom+xml; charset=ascii')]
---- DATA
<?xml version="1.0" encoding="ascii"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<!-- Changelog -->
<id>http://$LOCALIP:$HGPORT/</id> (glob)
<link rel="self" href="http://$LOCALIP:$HGPORT/atom-log"/> (glob)
<link rel="alternate" href="http://$LOCALIP:$HGPORT/"/> (glob)
<title>repo Changelog</title>
<updated>1970-01-01T00:00:00+00:00</updated>
<entry>
<title>[default] test</title>
<id>http://$LOCALIP:$HGPORT/#changeset-61c9426e69fef294feed5e2bbfc97d39944a5b1c</id> (glob)
<link href="http://$LOCALIP:$HGPORT/rev/61c9426e69fe"/> (glob)
<author>
<name>test</name>
<email>test</email>
</author>
<updated>1970-01-01T00:00:00+00:00</updated>
<published>1970-01-01T00:00:00+00:00</published>
<content type="xhtml">
<table xmlns="http://www.w3.org/1999/xhtml">
<tr>
<th style="text-align:left;">changeset</th>
<td>61c9426e69fe</td>
</tr>
<tr>
<th style="text-align:left;">branch</th>
<td>default</td>
</tr>
<tr>
<th style="text-align:left;">bookmark</th>
<td></td>
</tr>
<tr>
<th style="text-align:left;">tag</th>
<td>tip</td>
</tr>
<tr>
<th style="text-align:left;">user</th>
<td>test</td>
</tr>
<tr>
<th style="text-align:left;vertical-align:top;">description</th>
<td>test</td>
</tr>
<tr>
<th style="text-align:left;vertical-align:top;">files</th>
<td>bar<br /></td>
</tr>
</table>
</content>
</entry>
</feed>
---- ERRORS
---- STATUS
200 Script output follows
---- HEADERS
[('Content-Type', 'text/plain; charset=ascii')]
---- DATA
/repo/
---- ERRORS
$ cd ..