mercurial/version.py
author Edouard Gomez <ed.gomez@free.fr>
Sat, 12 May 2007 00:41:30 +0200
changeset 4865 439e2f2fde42
parent 4066 cff3e4b4a8de
permissions -rw-r--r--
Fix inconsistency for the stream_out capability in hgweb During some experiments of mine, the uncompressed cloning could not be enabled for hgweb.cgi nor hgwebdir.cgi though the server claimed to be stream_out capable. The only solution was to enable it using the user's .hgrc file. This solution is not acceptable when publishing the repos through an HTTP server because the CGI runs as a www dedicated user whose's home hgrc file may not be accessible to users publishing their repos through their userdir. For such cases we could end up with this typical debug output: hg --debug clone --uncompressed http://server/hg/project destination directory: project sending capabilities command capabilities: lookup changegroupsubset stream=1 unbundle=HG10GZ,HG10BZ,HG10UN sending stream_out command abort: operation forbidden by server The error lies in the fact the hgweb object defines new accessors to the repo configuration that trust things by default (untrusted=True) but the streamclone:stream_out function uses the usual accessors to the repo.ui object, which do not trust by default (untrusted=False) Fix this inconsistency, adding a new parameter to the stream_out function. hgweb then forces a "trust by default" behavior.

# Copyright (C) 2005, 2006 by Intevation GmbH
# Author(s):
# Thomas Arendsen Hein <thomas@intevation.de>
#
# This program is free software under the GNU GPL (>=v2)
# Read the file COPYING coming with the software for details.

"""
Mercurial version
"""

import os
import os.path
import re
import time
import util

unknown_version = 'unknown'
remembered_version = False

def get_version(doreload=False):
    """Return version information if available."""
    try:
        import mercurial.__version__
        if doreload:
            reload(mercurial.__version__)
        version = mercurial.__version__.version
    except ImportError:
        version = unknown_version
    return version

def write_version(version):
    """Overwrite version file."""
    if version == get_version():
        return
    directory = os.path.dirname(__file__)
    for suffix in ['py', 'pyc', 'pyo']:
        try:
            os.unlink(os.path.join(directory, '__version__.%s' % suffix))
        except OSError:
            pass
    f = open(os.path.join(directory, '__version__.py'), 'w')
    f.write("# This file is auto-generated.\n")
    f.write("version = %r\n" % version)
    f.close()
    # reload the file we've just written
    get_version(True)

def remember_version(version=None):
    """Store version information."""
    global remembered_version
    if not version and os.path.isdir(".hg"):
        f = os.popen("hg identify 2> %s" % util.nulldev)  # use real hg installation
        ident = f.read()[:-1]
        if not f.close() and ident:
            ids = ident.split(' ', 1)
            version = ids.pop(0)
            if version[-1] == '+':
                version = version[:-1]
                modified = True
            else:
                modified = False
            if version.isalnum() and ids:
                for tag in ids[0].split('/'):
                    # is a tag is suitable as a version number?
                    if re.match(r'^(\d+\.)+[\w.-]+$', tag):
                        version = tag
                        break
            if modified:
                version += time.strftime('+%Y%m%d')
    if version:
        remembered_version = True
        write_version(version)

def forget_version():
    """Remove version information."""
    if remembered_version:
        write_version(unknown_version)