view tests/hgweberror.py @ 38150:24e517600b29

graph: add outputgraph() function, called by ascii() to print
the graph to the ui.

This allows a cleaner entrypoint for extensions to tweak the
graph output without needing to rewrite all of ascii(), or needing
to manually guess where the graph nodes/edges end and the rev
note portion begins.

This patch does not affect graph output or behavior in any way.

Differential Revision: https://phab.mercurial-scm.org/D3655

# 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 '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('raiseerror')