NvimRplugin: Elixir Contextual (really) completion and doc

thanks @archSeer for the gif !

Features

• Load nearest mix project in current file path with :MixLoad
• Start the current mix project application inside your vim: :MixStart
• Add a complete function "ElixirComplete": iex completion and doc into vim
• Interpret the currently selected Elixir Code with :ElixirExec
• If no line selected, then the whole file is interpreted, useful to dynamically reload current file modules when the app runs with :MixStart
• Bindings are kept along interpretations
• You can reset binding using the bang: :ElixirExec!
• Add a function ExdocGetBody to get documentation under cursor
• Add a command :ElixirQuickBuild which parse the current buffer to maintain a map of line-> __ENV__, once this command is executed, then the completion and the documentation function will understand the context: aliases, imports, use, etc., this function compile the file and use your CPU, use automd on vim to execute it when you want.
• The :ElixirQuickBuild background compilation can trigger error highlighting and log into vim to help your debugging.

Installation

Use directly the nvim packages https://github.com/awetzel/elixir.nvim which includes this plugin.

Otherwise install neovim elixir host (see https://github.com/awetzel/neovim-elixir) then compile your plugin as an archive and put the archive in the rplugin/elixir directory of your neovim configuration.

mix archive.build
cp nvim_rplugin-0.0.1.ez ~/.config/nvim/rplugin/elixir/

Configuration

Four possible configurations:

• g:elixir_maxmenu is an integer giving the max length of the function doc preview in omni completion, default to 70
• g:elixir_docpreview is a boolean (int 0 or 1) to choose if you want the completion function to open doc in preview window or not, default to 0.
• g:elixir_showerror is a boolean (int 0 or 1) to choose if you want to highlight the errorneous line and log the error into vim during :ElixirQuickBuild compilation.