RFR: Ensure Python 3 compatibility for the hg extension

[Robin Westberg]

On Mon, 25 Nov 2019 13:28:47 GMT, Robin Westberg <rwestberg at openjdk.org> wrote:

> On Mon, 25 Nov 2019 11:09:15 GMT, Erik Helin <ehelin at openjdk.org> wrote:
> 
>> On Mon, 25 Nov 2019 09:06:33 GMT, Robin Westberg <rwestberg at openjdk.org> wrote:
>> 
>>> Hi all,
>>> 
>>> Please review this change that makes Skara's internally used Mercurial extension work with Python 3, while also retaining Python 2 compatibility. The Mercurial distribution on MacOS (through homebrew) recently switched to using Python 3, so this change will make the CI for Mac pass again.
>>> 
>>> Best regards,
>>> Robin
>>> 
>>> ----------------
>>> 
>>> Commits:
>>>  - 27aef11c: Refactor usages of .encode
>>>  - 85287fe7: Restore python2 compatibility
>>>  - dd54ede1: More adjustments
>>>  - f90befc2: Mercurial wants byte strings when using 3
>>> 
>>> Changes: https://git.openjdk.java.net/skara/pull/267/files
>>>  Webrev: https://webrevs.openjdk.java.net/skara/267/webrev.00
>>>   Stats: 57 lines in 1 file changed: 7 ins; 3 del; 47 mod
>>>   Patch: https://git.openjdk.java.net/skara/pull/267.diff
>>>   Fetch: git fetch https://git.openjdk.java.net/skara pull/267/head:pull/267
>> 
>> Robin what kind of testing have you done on this change? Could you please try to do a fresh conversion of one the smaller repositories, like jtreg, to ensure that we haven't broken anything? The unit tests exercise the Mercurial extension quite a bit, but I really want to ensure we don't mess anything up with regards to the hg -> git conversion.
> 
> �� The jtreg repository is actually partially converted in the hgbridge tests, but yes, it makes sense to do something a little more extensive.. I'll kick off a few bigger conversions.

Converted the jdk and panama repositories, and they ended up with the same commit hashes, so I think it's looking good. This was using using Mercurial with Python 2, but we can probably keep using that for the conversions.

PR: https://git.openjdk.java.net/skara/pull/267