Here's a pre-proposal (which could be formalized into a proper proposal) to 
address the wiki discussion:

- Configure the wiki to display the date of last edit prominently.

- If the date of last edit is sufficiently long ago (1 year?) loudly warn the 
reader that the content may be out-of-date.

And that's it! I think that solves the problem. The reason this solves the 
problem is that the ghc-proposals process is already en route to providing the 
git-backed files that have been floated as the alternative to a wiki. Thus, 
language features, etc., will be memorialized through the ghc-proposals 
process. As I understand it, that process already requires the proposal to be 
updated to a description of the feature as the feature is implemented and 
refined. We will be left with a nice git repo of feature descriptions.

The wiki can remain as a place for less permanent discussions (such as 
pre-proposals) or pages that use the nice dynamic features of Trac.

Is this proposal possible to implement? Does it solve the wiki problem 
sufficiently?

Sometimes, solutions are easy. :)
Richard


> On Sep 28, 2016, at 10:30 PM, Manuel M T Chakravarty <[email protected]> 
> wrote:
> 
> Michael’s arguments are compelling.
> 
> Manuel
> 
>> Simon Peyton Jones via ghc-devs <[email protected] 
>> <mailto:[email protected]>>:
>> 
>> Interesting article.  Michael suggests using markdown in repo-controlled 
>> files rather than a wiki.  I can see the force of that. Maybe we should 
>> consider it.
>>  
>> Simon
>>   <>
>> From: Alan & Kim Zimmerman [mailto:[email protected] 
>> <mailto:[email protected]>] 
>> Sent: 27 September 2016 15:54
>> To: Simon Peyton Jones <[email protected] <mailto:[email protected]>>
>> Cc: Sven Panne <[email protected] <mailto:[email protected]>>; ghc-devs 
>> <[email protected] <mailto:[email protected]>>
>> Subject: Re: How, precisely, can we improve?
>>  
>> I think this is relevant to the dicussion: 
>> http://www.yesodweb.com/blog/2015/08/thoughts-on-documentation 
>> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.yesodweb.com%2Fblog%2F2015%2F08%2Fthoughts-on-documentation&data=01%7C01%7Csimonpj%40microsoft.com%7C7ff5e6e47ba5499a774308d3e6e631c2%7C72f988bf86f141af91ab2d7cd011db47%7C1&sdata=uXvFVL2YlOPej5%2Brxms7oUL91OD%2FpqDD9VLaOYtL%2FjQ%3D&reserved=0>
>> Alan
>>  
>> On Tue, Sep 27, 2016 at 4:22 PM, Simon Peyton Jones via ghc-devs 
>> <[email protected] <mailto:[email protected]>> wrote:
>> We currently have *3* wikis:
>>  
>>         https://wiki.haskell.org/Haskell 
>> <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwiki.haskell.org%2FHaskell&data=01%7C01%7Csimonpj%40microsoft.com%7C28109c89abb14244f87908d3e6aa6198%7C72f988bf86f141af91ab2d7cd011db47%7C1&sdata=fxYacdt9XklXJaGetQABBI%2BG3IgnlJmB2r1EL54I1HU%3D&reserved=0>
>>         https://ghc.haskell.org/trac/ghc <https://ghc.haskell.org/trac/ghc>
>>         https://phabricator.haskell.org/w/ 
>> <https://phabricator.haskell.org/w/>
>>  
>> I didn’t even know about  the third of these, but the first two have clearly 
>> differentiated goals:
>> ·        https://wiki.haskell.org/Haskell 
>> <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwiki.haskell.org%2FHaskell&data=01%7C01%7Csimonpj%40microsoft.com%7C28109c89abb14244f87908d3e6aa6198%7C72f988bf86f141af91ab2d7cd011db47%7C1&sdata=fxYacdt9XklXJaGetQABBI%2BG3IgnlJmB2r1EL54I1HU%3D&reserved=0>
>>  is about user-facing, and often user-generated, documentation.  Guidance 
>> about improving performance, programming idioms, tutorials etc.
>> 
>> ·        https://ghc.haskell.org/trac/ghc <https://ghc.haskell.org/trac/ghc> 
>> is about GHC’s implementation, oriented to people who want to understand how 
>> GHC works, and how to modify it.
>> 
>>  
>> I think this separation is actually quite helpful.
>>  
>> I agree with what you and others say about the difficulty of keeping wikis 
>> organised. But that’s not primarily a technology issue: there is a genuinely 
>> difficult challenge here.  How do you build and maintain up-to-date, 
>> navigable, well-organised information about a large, complex, and rapidly 
>> changing artefact like GHC?  A wiki is one approach that has the merit that 
>> anyone can improve it; control is not centralised.  But I’d love there to be 
>> other, better solutions.
>>  
>> Simon
>>   <>
>> From: ghc-devs [mailto:[email protected] 
>> <mailto:[email protected]>] On Behalf Of Sven Panne
>> Sent: 27 September 2016 08:46
>> To: ghc-devs <[email protected] <mailto:[email protected]>>
>> Subject: Re: How, precisely, can we improve?
>>  
>> Just a remark from my side: The documentation/tooling landscape is a bit 
>> more fragmented than it needs to be IMHO. More concretely:
>>  
>>    * We currently have *3* wikis:
>>  
>>         https://wiki.haskell.org/Haskell 
>> <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwiki.haskell.org%2FHaskell&data=01%7C01%7Csimonpj%40microsoft.com%7C28109c89abb14244f87908d3e6aa6198%7C72f988bf86f141af91ab2d7cd011db47%7C1&sdata=fxYacdt9XklXJaGetQABBI%2BG3IgnlJmB2r1EL54I1HU%3D&reserved=0>
>>         https://ghc.haskell.org/trac/ghc <https://ghc.haskell.org/trac/ghc>
>>         https://phabricator.haskell.org/w/ 
>> <https://phabricator.haskell.org/w/>
>>  
>>  
>>      It's clear to me that they have different emphases and different 
>> origins, but in the end this results in valuable information being scattered 
>> around. Wikis in general are already quite hard to navigate (due to their 
>> inherent chaotic "structure"), so having 3 of them makes things even worse. 
>> It would be great to have *the* single Haskell Wiki directly on haskell.org 
>> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fhaskell.org&data=01%7C01%7Csimonpj%40microsoft.com%7C28109c89abb14244f87908d3e6aa6198%7C72f988bf86f141af91ab2d7cd011db47%7C1&sdata=%2F8JlCXTwn%2FB8EyrW4BkY0QTS57X%2BFvs4BSXijqCbiNA%3D&reserved=0>
>>  in an easily reachable place.
>>  
>>    * To be an active Haskell community member, you need quite a few 
>> different logins: Some for the Wikis mentioned above, one for Hackage, 
>> another one for Phabricator, perhaps an SSH key here and there... 
>> Phabricator is a notable exception: It accepts your GitHub/Google+/... 
>> logins. It would be great if the other parts of the Haskell ecosystem 
>> accepted those kinds of logins, too.
>>  
>>    * https://haskell-lang.org/ 
>> <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fhaskell-lang.org%2F&data=01%7C01%7Csimonpj%40microsoft.com%7C28109c89abb14244f87908d3e6aa6198%7C72f988bf86f141af91ab2d7cd011db47%7C1&sdata=9ndNQVeDQy7lPb4qmn13k%2BAtztK8F9Hq%2B2jeXKm9YFU%3D&reserved=0>
>>  has great stuff on it, but its relationship to haskell.org 
>> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fhaskell.org&data=01%7C01%7Csimonpj%40microsoft.com%7C28109c89abb14244f87908d3e6aa6198%7C72f988bf86f141af91ab2d7cd011db47%7C1&sdata=%2F8JlCXTwn%2FB8EyrW4BkY0QTS57X%2BFvs4BSXijqCbiNA%3D&reserved=0>
>>  is unclear to me. Their "documentation" sub-pages look extremely similar, 
>> but haskell-lang.org 
>> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fhaskell-lang.org&data=01%7C01%7Csimonpj%40microsoft.com%7C28109c89abb14244f87908d3e6aa6198%7C72f988bf86f141af91ab2d7cd011db47%7C1&sdata=G9e%2BVDuPTtZHZl%2BGd2fFShUznQjDa158JENjoMiD0VY%3D&reserved=0>
>>  has various (great!) tutorials and a nice overview of common libraries on 
>> it. From an external POV it seems to me that haskell-lang.org 
>> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fhaskell-lang.org&data=01%7C01%7Csimonpj%40microsoft.com%7C28109c89abb14244f87908d3e6aa6198%7C72f988bf86f141af91ab2d7cd011db47%7C1&sdata=G9e%2BVDuPTtZHZl%2BGd2fFShUznQjDa158JENjoMiD0VY%3D&reserved=0>
>>  should be seamlessly integrated into haskell.org 
>> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fhaskell.org&data=01%7C01%7Csimonpj%40microsoft.com%7C28109c89abb14244f87908d3e6aa6198%7C72f988bf86f141af91ab2d7cd011db47%7C1&sdata=%2F8JlCXTwn%2FB8EyrW4BkY0QTS57X%2BFvs4BSXijqCbiNA%3D&reserved=0>,
>>  i.e. merged into it. Having an endless sea of links on haskell.org 
>> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fhaskell.org&data=01%7C01%7Csimonpj%40microsoft.com%7C28109c89abb14244f87908d3e6aa6198%7C72f988bf86f141af91ab2d7cd011db47%7C1&sdata=%2F8JlCXTwn%2FB8EyrW4BkY0QTS57X%2BFvs4BSXijqCbiNA%3D&reserved=0>
>>  is not the same as having content nicely integrated into it, sorted by 
>> topic, etc.
>>  
>> All those points are not show-stoppers for people trying to be more active 
>> in the Haskell community, but nevertheless they make things harder than they 
>> need to be, so I fear we lose people quite early. To draw an analogy: As 
>> probably everybody who actively monitors their web shop/customer site knows, 
>> even seemlingy small things moves customers totally away from your site. One 
>> unclear payment form? The vast majority of your potential customers aborts 
>> the purchase immediately and forever. One confusing interstitial web page? 
>> Say goodbye to lots of people. One hard-to-find button/link? A forced 
>> login/new account? => Commercial disaster, etc. etc.
>>  
>> Furthermore, I'm quite aware of the technical/social difficulties of my 
>> proposals, but that shouldn't let us stop trying to improve...
>>  
>> Cheers,
>>    S.
>> 
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>>  
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