X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/2b05dc69265b4a902ea46705707e005beb2a7c47..651cdd4b2a85f4e5f9d298a7eea7d0e6d94442b1:/doc/todo/rewrite_ikiwiki_in_haskell/discussion.mdwn?ds=inline diff --git a/doc/todo/rewrite_ikiwiki_in_haskell/discussion.mdwn b/doc/todo/rewrite_ikiwiki_in_haskell/discussion.mdwn index d8e0e3eea..851fdbe1f 100644 --- a/doc/todo/rewrite_ikiwiki_in_haskell/discussion.mdwn +++ b/doc/todo/rewrite_ikiwiki_in_haskell/discussion.mdwn @@ -15,7 +15,74 @@ Congratulations for demonstrating that April fools jokes can still be subtle ----- -I'm torn about this idea, if it's actually serious. I'm very comfortable programming in Perl, and have written quite a few modules for IkiWiki, and it would be a huge pain to have to start from scratch all over again. -On the other hand, this could be a motivation for me to learn Haskell. My only encounter with Haskell has been a brief time when I was using the Xmonad window manager, but it looks like an interesting language. Functional programming is cool. +I'm torn about this idea, if it's actually serious. I'm very comfortable +programming in Perl, and have written quite a few modules for IkiWiki, and +it would be a huge pain to have to start from scratch all over again. On +the other hand, this could be a motivation for me to learn Haskell. My +only encounter with Haskell has been a brief time when I was using the +Xmonad window manager, but it looks like an interesting language. +Functional programming is cool. + +There are a lot of interesting plusses for Haskell you note (in the parent +page), but it's true that the idea is horribly daunting (as [[Joey]] said +"If only I had a spare year"). Is there any way that you could "start +small"? Because nothing will ever happen if the task is too daunting to +even start. + +> This seems destined to remain a thought experiment unless something like +> that can be done, or I get a serious case of second system disease. +> +> I've considered doing things like using the external plugin interface +> to run a separate haskell program, which would allow implementing +> arbitrary plugins in haskell (starting with a pandoc plugin..), +> and could perhaps grow to subsume the perl code. However, this would +> stick us with the perl data structures, which are not a very good fit +> for haskell. --[[Joey]] + +On further thought... perhaps it would be easier to fork or contribute to +an existing Haskell-based wiki, such as Hakyll? --[[KathrynAndersen]] + +> As far as I know there are no other wikis (haskell or otherwise) +> that are wiki compilers. Since we know from experience that dealing +> with static compilation turns out to be one of the trickiest parts of +> ikiwiki, I'm doubtful about trying to bolt that into one. --[[Joey]] + +>> Haykll isn't a wiki but it does do static compilation. The missing +>> parts are: the web interface, the wiki link processing, and page +>> dependency stuff. -- [[tychoish]] + +>>> (nods) Which is why I suggested it. I'm not sure whether it would be easier to "bolt on" those things than static compilation, but it could be worth looking at, at least. -- [[KathrynAndersen]] + +----- + +Rather than coding plugins for the Perl ikiwiki in Haskell, I wonder how easily a Haskell ikiwiki could still support plugins written in Perl? The (old and apparently stale) [HsPerl5](http://hackage.haskell.org/package/HsPerl5) package might provide a helpful starting point there. -- [[JoshTriplett]] + +----- + +I'm very keen on this, and would be interested in helping. I've been wanting to use ikiwiki for years, but the idea of investing time in the perl ecosystem and perl-based implementation stops me. -- [[Simon Michael]] + +----- + +I've recently been wondering whether I could migrate my personal blog (powered by IkiWiki) to Hakyll. +I'm really fond of Ikiwiki's wiki link syntax, as well as the linking rules, and many of the features +offered by plugins. Therefore I set out to see how easily (and whether it's even feasible) to implement +them on top of Hakyll. I'm totally new to Hakyll so I don't fully understand some of the concepts but +I've made some promising initial progress. I decided to share my work in progress experiments here: + + +I can recognise and parse out wiki links and directives. Wikilinks are translated into HTML links, but +the page-linking rules are not yet implemented (the wiki link target is passed through as-is). For +Directives, I've written basic implementations of `meta` and `tag`. In both cases, I build up Hakyll +`Metadata`, which is really a hash map. I've yet to figure out plumbing that back into Hakyll, though. +I've got an idea of how to handle `template`, but haven't tried coding it up yet. — [[Jon]] + +----- + +Cool, Jon. Have you thought about Shake + pandoc as an interesting alternative to Hakyll, +perhaps a little more lightweight and flexible ? Here’s a [bit of Shake code](https://github.com/simonmichael/hledger/blob/master/Shake.hs#L421) +I use for rendering wiki-like pages. —[[Simon Michael]] + +> I've not looked at Shake yet, thanks, I'll give it a look! — [[Jon]]