vim-tidal

A Vim plugin for Tidal.

Uses tmux and it is based on vim-slime for communication with Tidal (ghci).

Usage

You can start livecoding with Vim simply by running:

$ tidalvim

This creates a tmux session with Vim, Tidal and Dirt running on different panes.

Then, use one of these key bindings to send lines to Tidal:

• <localleader>ss: Send current inner paragraph (equivalent to doing vip).
• <localleader>s: Send current line or current visually selected block.

There are other bindings to control Tidal like:

• <localleader>s[N]: Send first ocurrence of stream number [N] from the current cursor position.
• <localleader>[N]: Silences stream number [N] by sending d[N] silence.
• <localleader>h: Silences all streams by sending hush.

About these bindings

The <leader> key is a special key used to perform commands with a sequence of keys. The <localleader> key behaves as the <leader> key, but is local to a buffer. In particular, the above bindings only work in buffers with the "tidal" file type set, e.g. files whose file type is .tidal

By default, there is no <localheader> set. To define one, e.g. for use with a comma (,), write this on your .vimrc file:

let maplocalleader=","

Reload your configuration (or restart Vim), and after typing ,ss on a few lines of code, you should see those being copied onto the Tidal interpreter on the upper-right pane.

Install

Install tmux

tmux is used to communicate between Vim and Tidal.

Ubuntu/Debian

You can install it from the main repos:

$ sudo apt-get install tmux

OSX

$ brew install tmux

Windows

There seems to be a Cygwin package for tmux, but I haven't tested this plugin on Windows anyway, so you are on your own here.

If you happen to make it work, let me know so I can update this text!

Install plugin

A Vim plugins manager like Vundle or Pathogen is highly recommended. Install one of those if you don't have one. Check those links for instructions.

For example, using Vundle:

• Edit your .vimrc file and add these lines:

Plugin 'munshkr/vim-tidal'

• Restart Vim and execute :PluginInstall to automatically download and install the plugins.

Finally, go to the plugin repository and run make to install the tidalvim script.

$ cd ~/.vim/bundle/vim-tidal
$ sudo make install

Configuration

By default, there are two normal keybindings and one for visual blocks using your <localleader> key. If you don't have one defined, set it on your .vimrc script with let maplocalleader=",", for example.

You can configure tmux socket name and target pane by typing <localleader>c.

About the target pane:

• ":" means current window, current pane (a reasonable default)
• ":i" means the ith window, current pane
• ":i.j" means the ith window, jth pane
• "h:i.j" means the tmux session where h is the session identifier (either session name or number), the ith window and the jth pane

tidalvim

TODO There are no options yet, but there are some variables inside tidalvim that you can change:

DEFAULT_PATH=~
DEFAULT_FILE=foo.tidal
DIRT_PATH=~/dirt
DIRT_OPTIONS=

• DEFAULT_PATH is where Vim will start up.
• DEFAULT_FILE is the file that will open first. The .tidal extension is important (you can run :setfiletype haskell.tidal in other case)
• DIRT_PATH is where Dirt lies.
• DIRT_OPTIONS are extra command-line options (like --channels or --no-dirty-compressor).

You can also edit BootTidal.hss to run something else on init, like connecting to a Dirt on a different machine/host.