view tests/hgweberror.py @ 24409:30b8db6d0c04

subrepo: add the parent context to hgsubrepo

This brings parity with gitsubrepo and svnsubrepo (which already reference their
parent), and will be used in an upcoming patch.

I'm a bit concerned that the parent context could get stale (consider what
happens when the parent repo is reverted for example).  I tried adding the
parent context to the substate tuple so that the parent is available everywhere
a state change is possible, but that made submerge() unhappy.  Even with
removing the parent context inside submerge(), I wasn't able to get all of the
test diffs fixed.

But since the other subrepos reference their parent too, if there is a problem,
it is a preexisting one (that nobody seems to be running into).  It can be fixed
if/when it pops up.

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

from mercurial.hgweb import webcommands

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

    # Simulate an error after partial response.
    if 'partialresponse' in req.form:
        req.respond(200, 'text/plain')
        req.write('partial content\n')

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

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