bundle: avoid crash when no good changegroup version found
When using treemanifests, only changegroup3 bundles can be
created. However, there is currently no way of requesting a
changegroup3 bundle, so we run into an assertion in
changegroup.getbundler() when trying to get a changroup2
bundler. Let's avoid the traceback and print a short error message
instead.
import os
from hgext import color
from mercurial import dispatch, ui
# ensure errors aren't buffered
testui = color.colorui()
testui.pushbuffer()
testui.write(('buffered\n'))
testui.warn(('warning\n'))
testui.write_err('error\n')
print repr(testui.popbuffer())
# test dispatch.dispatch with the same ui object
hgrc = open(os.environ["HGRCPATH"], 'w')
hgrc.write('[extensions]\n')
hgrc.write('color=\n')
hgrc.close()
ui_ = ui.ui()
ui_.setconfig('ui', 'formatted', 'True')
# we're not interested in the output, so write that to devnull
ui_.fout = open(os.devnull, 'w')
# call some arbitrary command just so we go through
# color's wrapped _runcommand twice.
def runcmd():
dispatch.dispatch(dispatch.request(['version', '-q'], ui_))
runcmd()
print "colored? " + str(issubclass(ui_.__class__, color.colorui))
runcmd()
print "colored? " + str(issubclass(ui_.__class__, color.colorui))