minimal-haskell-emacs

A minimal emacs configuration for haskell programming using dante and friends.

• Coming from Vim? Try the evil branch which includes vim key bindings

Visit dante's README.org to see the features list for Haskell editing.

Package management approach is based on this tutorial.

To get a haskell compiler, I recommend downloading Stack and running stack setup to install GHC.

Since stack setup does not install ghci in the global environment, you may want to run this command to create a ~/.local/bin/ghci executable that will run with the global stack environment:

if [ ! -f ~/.local/bin/ghci ]; then
    echo '#!/bin/bash' > ~/.local/bin/ghci;
    echo 'stack exec -- ghci $@' >> ~/.local/bin/ghci;
    chmod +x ~/.local/bin/ghci;
    echo "~/.local/bin/ghci created."
else
    echo "~/.local/bin/ghci already exists."
fi

Optional: If you want to add ghc and runghc as well, use:

if [ ! -f ~/.local/bin/ghc ]; then
    echo '#!/bin/bash' > ~/.local/bin/ghc;
    echo 'stack exec -- ghc $@' >> ~/.local/bin/ghc;
    chmod +x ~/.local/bin/ghc;
    echo "~/.local/bin/ghc created."
else
    echo "~/.local/bin/ghc already exists."
fi

if [ ! -f ~/.local/bin/runghc ]; then
    echo '#!/bin/bash' > ~/.local/bin/runghc;
    echo 'stack exec -- runghc $@' >> ~/.local/bin/runghc;
    chmod +x ~/.local/bin/runghc;
    echo "~/.local/bin/runghc created."
else
    echo "~/.local/bin/runghc already exists."
fi

To install this configuration, clone the repository and place the following files at your home directory:

• .emacs - emacs will call this file first which will trigger the whole thing. Also contains a few convenient tweaks.
• .emacs.d/my-packages.el - contains the list of packages to install when starting emacs
• .emacs.d/my-loadpackages.el - defines how to enable and setup the packages we use

WARNING: Backup your changes to all your emacs related files before running the following commands as they will override your files!

So the steps are:

git clone https://github.com/soupi/minimal-haskell-emacs
cp minimal-haskell-emacs/.emacs  ~/
cp -r minimal-haskell-emacs/.emacs.d ~/

Now just run Emacs and start hacking!

---

Extra useful shortcuts:

Files:

• F8 - Toggle neotree

Buffers:

• F7 - Open buffers list
• C-backtick / C-~ - next / previous buffer

Module Overview:

• F6 - Toggle imenu-list

Windows:

• C-tab - switch window
• M-<arrow> - move to window in direction

Haskell:

• C-: - In a haskell buffer, search this word in hoogle
• M-, - Jump back after 'Goto definition' (M-.)