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Example Vim Elm Configuration

Small (not minimal) configuration to setup a working Elm environment leveraging the elm-language-server in Vim. It's using vim-plug as plugin manager and coc as a language client.

Setup

Requires vim, elm, elm-format, elm-test, and elm-language-server to be installed globally by default.

git clone https://github.com/elm-tooling/elm-vim.git
cd elm-vim/vim-config-example
cp .vimrc ~
mkdir ~/.vim
cp coc-settings.json ~/.vim/
vim

Setup steps explained

.vimrc

Copy .vimrc into the user $HOME directory. Or use vim -u .vimrc instead to pass to path to the .vimrc file.

coc-settings.json

Copy coc-settings.json to $HOME/.vim/ (create directory if missing).

Install plugins

Opening vim will download the plugins. Close with :q!<Enter>.

Usage

Open an elm file e.g. vim Main.elm

  • Format: ,p
  • Hover: ,g
  • Show usages: ,u
  • Jump to definition: ,d
  • Jump to error: ,a
  • Solve error: ,s
  • Rename variable: ,r

Debugging

  • :CocInfo<Enter> shows log messages
  • :CocConfig<Enter> opens coc configuration