dflemstr/monad-presentation repository overview

⁠The Monad Presentation project

This is a presentation in swedish about monads. It uses a Yesod back-end that lets the user evaluate code examples directly in the browser.

⁠Running

The repository is packaged as a Docker image. Install Docker and run:

docker run -p 3000:3000 dflemstr/monad-presentation

The web application will be reachable at http://localhost:3000/index.html⁠.

⁠Installation

Because I'm lazy, I modified some packages directly to make cloudeval work. These packages are in deps/ and are ruthlessly hacked. Some day I might make actual patches out of the changes I did, but for now, do this to install cloudeval:

1. Install vector-0.10.9.2 (from the source in vector-0.10.9.1.tar.gz) OR compute the patch between vector-0.10.9.1 and vector-0.10.9.2 and apply that patch to the latest vector version. If you don't know how to compile the package, extract it and run "cabal install" in the directory.

2. Install hint-0.3.3.7 (same situation as above)

3. Install cloudeval itself with a simple "cabal install"

4. Install MonadRandom-0.1.12.1 (also a hacked package)

The vector and MonadRandom changes do just tag some modules in the package as trustworthy, so I can use the packages in the presentation.

The changes to hint are actually necessary for cloudeval to work, though.

⁠Running

Simply run "cloudeval 3000" (or "dist/build/cloudeval 3000" if you didn't install the package) in the source repository. "3000" specifies which port to use. You can access the web page at http://localhost:3000⁠ (or whatever).