autocmds.lua

local cmd = vim.cmd
local function nvim_create_augroups(definitions)
	for group_name, definition in pairs(definitions) do
		-- api.nvim_command('augroup '..group_name)
		-- api.nvim_command('autocmd!')
		for _, def in ipairs(definition) do
			local command = table.concat(vim.tbl_flatten{'autocmd', def}, ' ')
      print(command)
			-- api.nvim_command(command)
		end
		-- kapi.nvim_command('augroup END')
	end
end

FILETYPEHOOKS = {
  ruby = function() 
    vim.bo.autoindent = true
    vim.bo.bomb = false
    vim.bo.expandtab = true
    vim.bo.shiftwidth = 2
    vim.bo.softtabstop = 2
  end;
  javascript = function()
    vim.bo.autoindent = true
    vim.bo.bomb = false
    vim.bo.expandtab = true
    vim.bo.shiftwidth = 2
    vim.bo.softtabstop = 2
  end;
}

local autocmds = { 
  javascript = {
    { 'FileType', 'javascript', 'lua FILETYPE_HOOKS.javascript()' };
      { 'FileType', 'javascript.jsx', 'lua FILETYPE_HOOKS.javascript()' };
      { 'BufRead,BufNewFile', '*.ts', 'setl ft=typescript' };
      { 'BufRead,BufNewFile', '*.tsx', 'setl ft=typescript.jsx' };
  };
  ruby = {
    { 'FileType', 'ruby,haml,eruby,yaml,html,sass,cucumber', 'lua FILETYPE_HOOKS.ruby()' };
    { 'BufRead,BufNewFile', '{Guardfile,Gemfile,RakeFile}', 'setl ft=ruby' };
    { 'BufRead,BufNewFile', '*.sass', 'setl ft=sass' };
  };
  vimrc = {
    {'BufReadPost', '*', [[
      if line("'\"") > 0 && line("'\"") <= line("$") |
        exe "normal g`\"" |
      endif
]]};
    {'BufWritePost', '$MYVIMRC', 'source $MYVIMRC' };
  };
}

init.vim

set runtimepath^=~/.vim runtimepath+=~/.vim/after
let &packpath = &runtimepath
"source ~/.vimrc
call plug#begin(stdpath('config') . '/plugged')
Plug 'nvim-treesitter/nvim-treesitter', {'do': 'TSUpdate'}
Plug 'nvim-treesitter/playground'
Plug 'nvim-lua/plenary.nvim'
Plug 'nvim-telescope/telescope.nvim'
Plug 'neovim/nvim-lspconfig'
Plug 'kyazdani42/nvim-web-devicons'
Plug 'rktjmp/lush.nvim'
Plug 'christoomey/vim-tmux-navigator'
Plug 'christoomey/vim-tmux-runner'
Plug 'vim-airline/vim-airline'
Plug 'editorconfig/editorconfig'
Plug 'mattn/emmet-vim'
Plug 'altercation/vim-colors-solarized'
Plug 'tpope/vim-bundler'
Plug 'tpope/vim-endwise'
Plug 'tpope/vim-fugitive'
Plug 'tpope/vim-projectionist'
Plug 'tpope/vim-rails'
Plug 'tpope/vim-repeat'
Plug 'tpope/vim-surround'
Plug 'tpope/vim-unimpaired'
Plug 'flazz/vim-colorschemes'
Plug 'elixir-editors/vim-elixir'
Plug 'tpope/vim-dispatch'
Plug 'vim-ruby/vim-ruby'
Plug 'neoclide/coc.nvim', {'branch': 'release'}
call plug#end()
lua << EOF
require('settings')
require('autocmds')
require 'lspconfig'.solargraph.setup{}
EOF

lua << EOF
local nvim_lsp = require('lspconfig')

-- Use an on_attach function to only map the following keys
-- after the language server attaches to the current buffer
local on_attach = function(client, bufnr)
local function buf_set_keymap(...) vim.api.nvim_buf_set_keymap(bufnr, ...) end
local function buf_set_option(...) vim.api.nvim_buf_set_option(bufnr, ...) end

--Enable completion triggered by <c-x><c-o>
buf_set_option('omnifunc', 'v:lua.vim.lsp.omnifunc')

-- Mappings.
local opts = { noremap=true, silent=true }

-- See `:help vim.lsp.*` for documentation on any of the below functions
buf_set_keymap('n', 'gD', '<Cmd>lua vim.lsp.buf.declaration()<CR>', opts)
buf_set_keymap('n', 'gd', '<Cmd>lua vim.lsp.buf.definition()<CR>', opts)
buf_set_keymap('n', 'K', '<Cmd>lua vim.lsp.buf.hover()<CR>', opts)
buf_set_keymap('n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<CR>', opts)
buf_set_keymap('n', '<C-k>', '<cmd>lua vim.lsp.buf.signature_help()<CR>', opts)
buf_set_keymap('n', '<space>wa', '<cmd>lua vim.lsp.buf.add_workspace_folder()<CR>', opts)
buf_set_keymap('n', '<space>wr', '<cmd>lua vim.lsp.buf.remove_workspace_folder()<CR>', opts)
buf_set_keymap('n', '<space>wl', '<cmd>lua print(vim.inspect(vim.lsp.buf.list_workspace_folders()))<CR>', opts)
buf_set_keymap('n', '<space>D', '<cmd>lua vim.lsp.buf.type_definition()<CR>', opts)
buf_set_keymap('n', '<space>rn', '<cmd>lua vim.lsp.buf.rename()<CR>', opts)
buf_set_keymap('n', '<space>ca', '<cmd>lua vim.lsp.buf.code_action()<CR>', opts)
buf_set_keymap('n', 'gr', '<cmd>lua vim.lsp.buf.references()<CR>', opts)
buf_set_keymap('n', '<space>e', '<cmd>lua vim.lsp.diagnostic.show_line_diagnostics()<CR>', opts)
buf_set_keymap('n', '[d', '<cmd>lua vim.lsp.diagnostic.goto_prev()<CR>', opts)
buf_set_keymap('n', ']d', '<cmd>lua vim.lsp.diagnostic.goto_next()<CR>', opts)
buf_set_keymap('n', '<space>q', '<cmd>lua vim.lsp.diagnostic.set_loclist()<CR>', opts)
buf_set_keymap("n", "<space>f", "<cmd>lu vim.lsp.buf.formatting()<CR>", opts)

end

-- Use a loop to conveniently call 'setup' on multiple servers and
-- map buffer local keybindings when the language server attaches
local servers = { "solargraph" }
for _, lsp in ipairs(servers) do
  nvim_lsp[lsp].setup {
    on_attach = on_attach,
    flags = {
      debounce_text_changes = 150,
      }
    }
end
EOF

lua <<EOF
require'nvim-treesitter.configs'.setup {
  ensure_installed = "maintained", -- one of "all", "maintained" (parsers with maintainers), or a list of languages
  ignore_install = { "javascript" }, -- List of parsers to ignore installing
  highlight = {
    enable = true,              -- false will disable the whole extension
    disable = { "c", "rust" },  -- list of language that will be disabled
    -- Setting this to true will run `:h syntax` and tree-sitter at the same time.
    -- Set this to `true` if you depend on 'syntax' being enabled (like for indentation).
    -- Using this option may slow down your editor, and you may see some duplicate highlights.
    -- Instead of true it can also be a list of languages
    additional_vim_regex_highlighting = false,
  },
}
EOF

lua <<EOF
require'nvim-treesitter.configs'.setup {
  incremental_selection = {
    enable = true,
    keymaps = {
      init_selection = "gnn",
      node_incremental = "grn",
      scope_incremental = "grc",
      node_decremental = "grm",
    },
  },
}
EOF

lua <<EOF
require'nvim-treesitter.configs'.setup {
  indent = {
    enable = true
  }
}
EOF
lua <<EOF
require'nvim-web-devicons'.setup {
 -- your personnal icons can go here (to override)
 -- DevIcon will be appended to `name`
 override = {
  zsh = {
    icon = "",
    color = "#428850",
    name = "Zsh"
  }
 };
 -- globally enable default icons (default to false)
 -- will get overriden by `get_icons` option
 default = true;
}
EOF

set foldmethod=expr
set foldexpr=nvim_treesitter#foldexpr()
set foldlevelstart=20

nnoremap <leader>ff <cmd>lua require('telescope.builtin').find_files()<cr>
nnoremap <leader>fg <cmd>lua require('telescope.builtin').live_grep()<cr>
nnoremap <leader>fb <cmd>lua require('telescope.builtin').buffers()<cr>
nnoremap <leader>fh <cmd>lua require('telescope.builtin').help_tags()<cr>
nnoremap <leader>fm <cmd>lua require('telescope.builtin').find_files({cwd = "app/models")<cr>
nnoremap <leader>fd <cmd>lua require('telescope.builtin').find_files({cwd = "spec/factories")<cr>
nnoremap <leader>fs <cmd>lua require('telescope.builtin').find_files({cwd = "spec/")<cr>
nnoremap <leader>fv <cmd>lua require('telescope.builtin').find_files({cwd = "app/views")<cr>
nnoremap <leader>fc <cmd>lua require('telescope.builtin').find_files({cwd = "app/controllers")<cr>
nnoremap <leader>fj <cmd>lua require('telescope.builtin').find_files({cwd = "app/javascript")<cr>

settings.lua

local opt = vim.opt
local o = vim.o

vim.cmd [[
syntax enable
filetype plugin indent on
]]
--  disable auto indent in typescript files
vim.g.typescript_indent_disable = '1'
--  set all emojis as full width unicode
o.emoji = true
--  search for tag definitions in .gemtags as well
opt.tags:append('.gemtags')
opt.tags:append('.git/tags')
--  set the unnamed register to yank to the "* register for system clipboard
o.clipboard = 'unnamed'
--  use line numbers in the gutter on the left side
o.number = true
--  allow unsaved background buffers and remember marks/undo for them
o.hidden = true
--  remember more commands and search history
o.history = 10000
--  expand tabs to spaces
o.expandtab = true
--  set tabs stops to 2 characters
o.tabstop = 2
--  overide defaults tabwidwiths when typing to 2 characters
o.shiftwidth = 2
o.softtabstop = 2
--  use autoindent
o.autoindent = true
--  always display a status line
o.laststatus = 2
--  show matching braces, brackets, and parens
o.showmatch = true
--  show the matches as you type the search pattern
o.incsearch = true
--  highlight the search pattern
o.hlsearch = true
--  make searches case-sensitive only if they contain upper-case characters
o.ignorecase = true
o.smartcase = true
--  highlight current line
o.cursorline = true
--  make the command mode : 2 lines high
o.cmdheight = 2
--  when switching buffers use the window with the buffer open if it exists
o.switchbuf = 'useopen'
--  use 5 cols for the line numbers in the gutter
o.numberwidth = 5
--  always show the tab page line (top)
o.showtabline = 2
--  sets the cols for a window to use, steals from other windows if this one is
--  smaller
o.winwidth = 79
--  Prevent Vim from clobbering the scrollback buffer. See
--  http://www.shallowsky.com/linux/noaltscreen.html
-- o.t_ti = nil
-- o.t_te = nil
--  keep more context when scrolling off the end of a buffer
o.scrolloff = 3
--  Store temporary files in a central spot
o.backup = true
o.backupdir = '~/.vim-tmp,~/.tmp,~/tmp,/var/tmp,/tmp'
o.directory = '~/.vim-tmp,~/.tmp,~/tmp,/var/tmp,/tmp'
--  allow backspacing over everything in insert mode
o.backspace = 'indent,eol,start'
--  display incomplete commands
o.showcmd = true
--  use emacs-style tab completion when selecting files, etc
o.wildmode = 'longest,list'
--  make tab completion for files/buffers act like bash
o.wildmenu = true
o.undodir = '$HOME/.vim/undo'
o.undolevels = 1000
o.undoreload = 10000
--  don't use two spaces after sentence end when joining lines
o.joinspaces = false
--  this fixes the O insert taking so long
o.timeout = true
o.timeoutlen = 1000
o.ttimeoutlen = 100
--  use modelines in files if found
o.modeline = true
--  check 3 lines for modelines
o.modelines = 3
--  ignore the patterns when expanding file globs
o.wildignore = 'tmp/*,*.swp,*.zip,*.exe,*.class,*.jar,*.ear,*.war,*\\node_modules\\**'
--  set the root search directory to first anscestor with a .git or if not found, the
--  current directory
vim.g.ctrlp_working_path_mode = 'ra'
--  when indexing, ignore these patterns of files / directories
vim.g.ctrlp_custom_ignore = [[
    {
      'dir': '\.git$\|\.hg$\|\.svn$\|classes$\|node_modules\|npm-packages-offline-cache\|tmp$\|pack\|pack-test$',
      'file': '\.exe$\|\.so$\|\.dll$\|\.class$\|\.jar$\|\.ear$\|.\war$',
      'link': 'SOME_BAD_SYMBOLIC_LINKS',
    }
]]
--  don't try to index more that 100,000 files
vim.g.ctrlp_max_files = 100000
--  don't index deeper than 100 directories
vim.g.ctrlp_max_depth = 100
--  if indexing takes too long, you can use the git repo ls-files to get the
--  list of files to index 
-- let g:ctrlp_user_command = ['.git/', 'git --git-dir=%s/.git ls-files -oc --exclude-standard']
vim.g.ctrlp_user_command = nil
o.grepprg = 'git grep -nI'
vim.cmd('colorscheme railscasts')
vim.cmd('hi Special guifg=#2a71dc ctermfg=32')