Hi Ostrzyciel. Replies inline.

On Thu, 27 Jan 2022, at 08:15, Ostrzyciel wrote:
> Maybe a dumb question – I get a profound impression that this email *and* the 
> guidelines are directed at Wikimedia employees, not MediaWiki extension 
> developers in general.
> 
> ...why? I thought that most extensions out there are not managed by 
> Wikimedia, right?

These guidelines, and indeed most coding conventions and development 
guidelines, are directed at MediaWiki developers in general. They are not 
merely for WMF-maintained extensions or WMF staff.

Of the 70+ bullet points in the current draft, there are exactly 2 points 
specific to WMF, and these are explicitly called out as such to avoid confusion 
(those are about sec/perf review, and stewardship).

The best practices document aims to reflect status quo among MediaWiki 
developers, which includes maintainers of the many MediaWiki hosted in Gerrit 
that aren't WMF-deployed. It is my understanding that by and large extensions 
follow the same coding styles, conventions, and guidelines. I also find in 
practice that volunteers contribute as much (if not, more than) staff to the 
shaping and implementation of these guidelines. Although these volunteers do 
tend to contribute more to WMF-deployed extensions, they are not currently 
staff.

> In the latter case – are Wikimedia employees the right group to be guiding 
> the discussion around these guidelines?
> 

No. I specifically addressed the email to all/everyone, and all MW developers 
are welcome to participate. Extension maintainers often do follow these 
conventions. But, they are by no means required to. It's not a requirement for 
hosting (unlike e.g. licensing and code of conduct), and there are certainly 
numerous extensions that follow a different coding style, or don't follow any 
(publicly known) guidelines.

There is one line in the TLDR of my email where I called upon tech leads among 
WMDE/WMF staff. I recognise this may have set a confusing tone.

-- Timo


> On 1/27/22 05:43, Krinkle wrote:
>> TLDR: Tech leads please review Best practices for extensions 
>> <https://www.mediawiki.org/wiki/Best_practices_for_extensions> on 
>> mediawiki.org.
>> 
>> Hi all,
>> 
>> You may be familiar with the Best practices for extensions 
>> <https://www.mediawiki.org/wiki/Best_practices_for_extensions> page on 
>> mediawiki.org. It has been marked as a draft since 2017.
>> 
>> I'd like to polish this page and get it to a state where it would be 
>> uncontroversial to label it as "Development guideline 
>> <https://www.mediawiki.org/wiki/Development_guidelines>". This would not 
>> make it a hard policy. Neither does it imply that it covers all practices in 
>> all situations.
>> 
>> Rather, it would mean that the items that are there now are indeed a part of 
>> our current best practices. We would keep it alive through bold 
>> <https://en.wikipedia.org/wiki/Wikipedia:Be_bold> edits and talk page 
>> conversations, similar to our Coding conventions 
>> <https://www.mediawiki.org/wiki/Manual:Coding_conventions/PHP> and other 
>> such guidelines that we maintain peer to peer and through consensus.
>> 
>> The reason I've not simply labelled it as such already is because before 
>> today I found the document to be out of sync with our actual practices. I 
>> have made a number of changes with descriptive edit summaries to bring it in 
>> sync with what I percieve to be our best practices; based on how myself and 
>> other maintainers perform code review at large, and how we review new 
>> extensions prior to deployment.
>> 
>> All are welcome to fix mistakes, raise questions/concerns on the talk page, 
>> on this thread. You're also welcome to message me directly anytime if you 
>> prefer.
>> 
>> If you consider yourself familiar with our practices and/or lead and mentor 
>> other engineers, please take a minute to review the page and consider 
>> whether the items reflect your current understanding and judgement.
>> 
>> --
>> Timo Tijhof,
>> Principal Engineer,
>> Wikimedia Performance Team.
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