hghave: add a check for pytype, Google's Python type checker
I'm not unbiased, but I strongly prefer pytype to mypy: it does more
inference, so we don't need as many annontations. In theory we can use
both, but since I'm doing some tinkering with pytype I figured I'd
just try setting it up.
Differential Revision: https://phab.mercurial-scm.org/D7268
--- a/tests/hghave.py Wed Nov 06 15:13:23 2019 -0500
+++ b/tests/hghave.py Wed Nov 06 14:09:36 2019 -0500
@@ -1000,3 +1000,11 @@
version = matchoutput(blackcmd, version_regex)
sv = distutils.version.StrictVersion
return version and sv(_strpath(version.group(1))) >= sv('19.10b0')
+
+
+@check('pytype', 'the pytype type checker')
+def has_pytype():
+ pytypecmd = 'pytype --version'
+ version = matchoutput(pytypecmd, b'[0-9a-b.]+')
+ sv = distutils.version.StrictVersion
+ return version and sv(_strpath(version.group(0))) >= sv('2019.10.17')