⚡ Volt

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What is Volt

• Multi-platform CLI tool managing Vim plugin life
• Based on Vim 8 packages feature
  • All plugins are installed under ~/.vim/pack/volt directory
• Zero overhead & optimizations
  • Volt does not slow down your startup
  • We plan to support transpilation of Vim script (Uglification, Transpiler to LuaJIT, ...)
• Provides version locking & easy setup
• Managing plugin configuration by plugconf files
  • This separates plugin configuration from vimrc, so you can easily disable/remove plugins in a second
• Profile feature saves set of plugins, vimrc, and gvimrc
  • You can switch those combinations with one command

Install

$ go get github.com/vim-volt/volt

Or download binaries from GitHub releases.

Build environment

• Go 1.9.1 or higher
• or Go 1.9.0 with a patch for os.RemoveAll() (#1)

Introduction

VOLTPATH

You can change base directory of volt by VOLTPATH environment variable. This is $HOME/volt by default.

Install plugin(s)

$ volt get [repositories ...]

For example, installing tyru/caw.vim plugin:

$ volt get https://github.com/tyru/caw.vim   # most verbose way
$ volt get github.com/tyru/caw.vim           # you can omit https:// of repository URL
$ volt get tyru/caw.vim                      # you can omit github.com/ if the repository is on GitHub

And you can install multiple plugins (parallel download):

$ volt get tyru/open-browser.vim tyru/open-browser-github.vim

For example, what volt get tyru/caw.vim command does internally is:

• Clone and install the repository to $VOLTPATH/repos/github.com/tyru/caw.vim
  • Volt does not require git command because it's powered by go-git
• Update $VOLTPATH/lock.json
• Run volt rebuild
  • Copy repository files to ~/.vim/pack/volt/opt/github.com_tyru_caw.vim
  • Install ~/.vim/pack/volt/start/system/plugin/bundled_plugconf.vim
    • It loads plugins like packadd github.com_tyru_caw.vim

Update plugins

To update all plugins:

$ volt get -l -u

-l works like all installed plugins are specified (the repositories list is read from $VOLTPATH/lock.json). -u updates specified plugins.

To update specified plugin only:

$ volt get -u tyru/caw.vim

Uninstall plugins

$ volt rm [repositories ...]

To uninstall tyru/caw.vim like:

$ volt rm tyru/caw.vim   # (sob)

Easy setup

If you want to install set of plugins which you have installed by volt get, you can use volt get -l.

$ volt get -l   # install plugins listed in $VOLTPATH/lock.json

First, you have to manage the following files under $VOLTPATH.

$VOLTPATH/
├ ─ ─  lock.json
├ ─ ─  plugconf (optional)
└ ─ ─  rc (optional)

NOTE: DO NOT RECOMMEND SHARING VOLT DIRECTORY ITSELF ON DROPBOX (see related issues).

For example, my actual setup is:

$ tree -L 1 ~/volt/
/home/tyru/volt/
├ ─ ─  lock.json -> /home/tyru/git/dotfiles/dotfiles/volt/lock.json
├ ─ ─  plugconf -> /home/tyru/git/dotfiles/dotfiles/volt/plugconf
├ ─ ─  rc -> /home/tyru/git/dotfiles/dotfiles/volt/rc
└ ─ ─  repos

See volt directory in tyru/dotfiles repository for example.

Configuration per plugin ("Plugconf" feature)

You can write plugin configuration in "plugconf" file. The files are placed at:

• $VOLTPATH/plugconf/<repository>.vim

For example, tyru/open-browser-github.vim configuration is $VOLTPATH/plugconf/user/github.com/tyru/open-browser.vim.vim because "github.com/tyru/open-browser-github.vim" is the repository URL.

Some special functions can be defined in plugconf file:

• s:config()
  • Plugin configuration
• s:loaded_on() (optional)
  • Return value: String (when to load a plugin by :packadd)
  • This function specifies when to load a plugin by :packadd
  • e.g.: return "start" (default, load on VimEnter autocommand)
  • e.g.: return "filetype=<filetype>" (load on FileType autocommand)
  • e.g.: return "excmd=<excmd>" (load on CmdUndefined autocommand)
• s:depends() (optional)
  • Return value: List (repository name)
  • The specified plugins by this function are loaded before the plugin of plugconf
  • e.g.: ["github.com/tyru/open-browser.vim"]

However, you can also define global functions in plugconf (see tyru/nextfile.vim example).

An example config of tyru/open-browser-github.vim:

function! s:config()
  let g:openbrowser_github_always_use_commit_hash = 1
endfunction

function! s:depends()
  return ['github.com/tyru/open-browser.vim']
endfunction

NOTE:

• Plugconf file is parsed by go-vimlparser
• The rhs of :return must be literal
• Breaking newline by backslash (\) in s:loaded_on() and s:depends() is safe, but the following code can not be recognized (currently not supported at least)

" Wrong
function! s:loaded_on()
  let when = 'filetype=vim'
  return when
endfunction

" Wrong
function! s:depends()
  let list =  ['github.com/tyru/open-browser.vim']
  return list
endfunction

" OK
function! s:depends()
  return [
  \  'github.com/tyru/open-browser.vim'
  \]
endfunction

See plugconf directory in tyru/dotfiles repository for example.

Switch set of plugins ("Profile" feature)

You can think this is similar feature of branch of git. The default profile name is "default".

You can see profile list by volt profile list.

$ volt profile list
* default

You can create a new profile by volt profile new.

$ volt profile new foo   # will create profile "foo"
$ volt profile list
* default
  foo

You can switch current profile by volt profile set.

$ volt profile set foo   # will switch profile to "foo"
$ volt profile list
  default
* foo

You can delete profile by volt profile destroy (but you cannot delete current active profile which you are switching on).

$ volt profile destroy foo   # will delete profile "foo"

You can enable/disable plugin by volt enable (volt profile add), volt disable (volt profile rm).

$ volt enable tyru/caw.vim    # enable loading tyru/caw.vim on current profile
$ volt profile add foo tyru/caw.vim    # enable loading tyru/caw.vim on "foo" profile

$ volt disable tyru/caw.vim   # disable loading tyru/caw.vim on current profile
$ volt profile rm foo tyru/caw.vim    # disable loading tyru/caw.vim on "foo" profile

You can create a vimrc & gvimrc file for each profile:

• vimrc: $VOLTPATH/rc/<profile name>/vimrc.vim
• gvimrc: $VOLTPATH/rc/<profile name>/gvimrc.vim

This file is copied to ~/.vim/vimrc and ~/.vim/gvimrc with magic comment (shows error if existing vimrc/gvimrc files exist with no magic comment).

And you can enable/disable vimrc by volt profile use (or you can simply remove $VOLTPATH/rc/<profile name>/vimrc.vim file if you don't want vimrc for the profile).

$ volt profile use -current vimrc false   # Disable installing vimrc on current active profile
$ volt profile use default gvimrc true   # Enable installing gvimrc on profile default

See volt help profile for more detailed information.

🎉 Contribution

If you want to contribute to volt, you can setup like:

$ make setup
$ make precompile   # this speeds up 'go build'
$ vim ...           # edit sources
$ make
$ bin/volt ...      # run volt command

How to build release binaries

$ make setup
$ make release
$ ls -1 dist/
volt-v0.0.1-alpha-darwin-amd64
volt-v0.0.1-alpha-darwin-386
volt-v0.0.1-alpha-linux-amd64
volt-v0.0.1-alpha-linux-386
volt-v0.0.1-alpha-windows-amd64.exe
volt-v0.0.1-alpha-windows-386.exe