test-check-code: fail new commits which use 'atexit' instead of 'ui.atexit'
Callbacks registered with 'atexit' are sometimes not called (like when
hg aborts and calls os._exit). On the other hand, callbacks registered with
'ui.atexit' are called in most cases. Therefore, encouraging the use of
'ui.atexit' by failing the test 'test-check-code.t' appropriately.
Test Plan:
Ran the test 'test-check-code.t' after importing 'atexit' in one of
the py files and confirmed that the test fails.
Differential Revision: https://phab.mercurial-scm.org/D961
--- a/contrib/check-code.py Thu Oct 05 20:46:49 2017 +0000
+++ b/contrib/check-code.py Thu Oct 05 14:18:55 2017 -0700
@@ -345,6 +345,7 @@
(r'def.*[( ]\w+=\{\}', "don't use mutable default arguments"),
(r'\butil\.Abort\b', "directly use error.Abort"),
(r'^@(\w*\.)?cachefunc', "module-level @cachefunc is risky, please avoid"),
+ (r'^import atexit', "don't use atexit, use ui.atexit"),
(r'^import Queue', "don't use Queue, use util.queue + util.empty"),
(r'^import cStringIO', "don't use cStringIO.StringIO, use util.stringio"),
(r'^import urllib', "don't use urllib, use util.urlreq/util.urlerr"),