Mercurial > hg
view tests/fakemergerecord.py @ 40036:acf5dbe39478
showstack: also handle SIGALRM
This is looking *very* handy when debugging mysterious hangs in a
test: you can wrap a hanging invocation in
`perl -e 'alarm shift @ARGV; exec @ARGV' 1`
for example, a hanging `hg pull` becomes
`perl -e 'alarm shift @ARGV; exec @ARGV' 1 hg pull`
where the `1` is the timeout in seconds before the process will be hit
with SIGALRM. After making that edit to the test file, you can then
use --extra-config-opt on run-tests.py to globaly enable showstack
during the test run, so you'll get full stack traces as you force your
hg to exit.
I wonder (but only a little, not enough to take action just yet) if we
should wire up some scaffolding in run-tests itself to automatically
wrap all commands in alarm(3) somehow to avoid hangs in the future?
Differential Revision: https://phab.mercurial-scm.org/D4870
author | Augie Fackler <augie@google.com> |
---|---|
date | Wed, 03 Oct 2018 16:03:16 -0400 |
parents | 4dc6f0905722 |
children | 2372284d9457 |
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# Extension to write out fake unsupported records into the merge state # # from __future__ import absolute_import from mercurial import ( merge, registrar, ) cmdtable = {} command = registrar.command(cmdtable) @command(b'fakemergerecord', [(b'X', b'mandatory', None, b'add a fake mandatory record'), (b'x', b'advisory', None, b'add a fake advisory record')], '') def fakemergerecord(ui, repo, *pats, **opts): with repo.wlock(): ms = merge.mergestate.read(repo) records = ms._makerecords() if opts.get('mandatory'): records.append((b'X', b'mandatory record')) if opts.get('advisory'): records.append((b'x', b'advisory record')) ms._writerecords(records)