test: add a basic 'test-check-pylint.t'
We add a minimal check using pylint for one case we knows we care about:
"mutable default" argument.
We'll likely extend this over time to cover other useful checks but this is a
good starting point.
#require test-repo pylint hg10
Run pylint for known rules we care about.
-----------------------------------------
There should be no recorded failures; fix the codebase before introducing a
new check.
Current checks:
- W0102: no mutable default argument
$ touch $TESTTMP/fakerc
$ pylint --rcfile=$TESTTMP/fakerc --disable=all \
> --enable=W0102 --reports=no \
> mercurial hgext hgext3rd