How to get static HTML from haskell code?

Question

I am trying to make some simple graphics applications in Haskell with the blank-canvas package, and I want to be able to upload these applications on itch.io. However, I don't know how as there are no .html files in the application, just Haskell files. I feel like I'm missing something really obvious here.

There are static html and JavaScript files in the GitHub for blank-canvas, but I have no idea how to use them, or even if those are what I'm supposed to use.

It might help if you give some example of a simple grahic that you want to upload to itch.io. — willeM_ Van Onsem
– willeM_ Van Onsem, Commented Jul 17, 2022 at 21:13
A program like the tic-tac-toe example in the blank-canvas GitHub page would be a pretty good example: github.com/ku-fpg/blank-canvas/tree/master/examples/tictactoe — lonelyfloat
– lonelyfloat, Commented Jul 17, 2022 at 22:23
There are no static HTML or JS sites for you to upload. blank-canvas starts a Webserver, and what’s executing is your Haskell code. It’s not built to be a static site generator. — Cubic
– Cubic, Commented Jul 20, 2022 at 5:27

Daniel Wagner · Accepted Answer · 2022-07-18 00:27:02Z

1

(Disclaimer: I don't know this package and have never used it. But I've used cabal a bunch.) From the top level directory, you can build the examples like this:

cabal build blank-canvas-example-tictactoe

(You can see the list of available executable names here.) This creates an executable named blank-canvas-example-tictactoe... somewhere. The details are a bit involved, but you can ask cabal where it put the thing with

cabal list-bin blank-canvas-example-tictactoe

Presumably you could then upload that executable to itch.io, though you may want to do a bit of testing to see whether there's some other things you're expected to bundle with it -- e.g. dynamically-linked libraries or resource files like jquery or whatever.

answered Jul 18, 2022 at 0:27

Daniel Wagner

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2 Comments

lonelyfloat Over a year ago

I have an executable that opens a localhost with the HTML stuff I would expect. I want the actual HTML file and/or JavaScript files, so I can make it run within itch.io without requiring a download.

Daniel Wagner Over a year ago

@lonelyfloat That's probably not possible unless you're willing to put in rather a lot of work.

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