extensions: avoid a crash when the version isn't properly byteified on py3
We already force bytestr on the `testedwith` and `buglink` attributes in
dispatch.py when generating a bug report with a similar comment about not
every extension being ported to py3. We should do the same here, so the
function can be properly typed.
Differential Revision: https://phab.mercurial-scm.org/D9433
--- a/mercurial/extensions.py Fri Nov 27 19:35:37 2020 -0500
+++ b/mercurial/extensions.py Fri Nov 27 14:54:37 2020 -0500
@@ -936,6 +936,10 @@
version = b''
if isinstance(version, (list, tuple)):
version = b'.'.join(pycompat.bytestr(o) for o in version)
+ else:
+ # version data should be bytes, but not all extensions are ported
+ # to py3.
+ version = stringutil.forcebytestr(version)
return version
--- a/tests/test-extension.t Fri Nov 27 19:35:37 2020 -0500
+++ b/tests/test-extension.t Fri Nov 27 14:54:37 2020 -0500
@@ -1399,12 +1399,20 @@
> cmdtable = {}
> command = registrar.command(cmdtable)
> class Bogon(Exception): pass
+ > # NB: version should be bytes; simulating extension not ported to py3
+ > __version__ = '1.0.0'
> @command(b'throw', [], b'hg throw', norepo=True)
> def throw(ui, **opts):
> """throws an exception"""
> raise Bogon()
> EOF
+Test extension without proper byteification of key attributes doesn't crash when
+accessed.
+
+ $ hg version -v --config extensions.throw=throw.py | grep '^ '
+ throw external 1.0.0
+
No declared supported version, extension complains:
$ hg --config extensions.throw=throw.py throw 2>&1 | egrep '^\*\*'
** Unknown exception encountered with possibly-broken third-party extension throw