view tests/hgweberror.py @ 46197:2607a9346398

branchmap: micro-optimize branchinfo

changelogrevision() is supposed to be used if not all data of
changelog.read is used. This is the case here as only the extra field is
used. This also improves extensibility as at least hgext.git doesn't
implement changelog.read.

Differential Revision: https://phab.mercurial-scm.org/D9626

# A dummy extension that installs an hgweb command that throws an Exception.

from __future__ import absolute_import

from mercurial.hgweb import webcommands


def raiseerror(web):
    '''Dummy web command that raises an uncaught Exception.'''

    # Simulate an error after partial response.
    if b'partialresponse' in web.req.qsparams:
        web.res.status = b'200 Script output follows'
        web.res.headers[b'Content-Type'] = b'text/plain'
        web.res.setbodywillwrite()
        list(web.res.sendresponse())
        web.res.getbodyfile().write(b'partial content\n')

    raise AttributeError('I am an uncaught error!')


def extsetup(ui):
    setattr(webcommands, 'raiseerror', raiseerror)
    webcommands.__all__.append(b'raiseerror')