nvim: proper move to lua

vim/.config/nvim/lua/builtins.lua

@@ -0,0 +1,21 @@
+-- Disable builtins
+vim.g.loaded_gzip = 1
+vim.g.loaded_zip = 1
+vim.g.loaded_zipPlugin = 1
+vim.g.loaded_tar = 1
+vim.g.loaded_tarPlugin = 1
+
+vim.g.loaded_getscript = 1
+vim.g.loaded_getscriptPlugin = 1
+vim.g.loaded_vimball = 1
+vim.g.loaded_vimballPlugin = 1
+vim.g.loaded_2html_plugin = 1
+
+vim.g.loaded_matchit = 1
+vim.g.loaded_matchparen = 1
+vim.g.loaded_logiPat = 1
+vim.g.loaded_rrhelper = 1
+
+vim.g.loaded_netrw = 1
+vim.g.loaded_netrwPlugin = 1
+vim.g.loaded_netrwSettings = 1

vim/.config/nvim/lua/filetypes.lua

@@ -0,0 +1,24 @@
+if not vim.filetype then
+  return
+end
+
+vim.g.did_load_filetypes = 0 -- deactivate vim based filetype detection
+vim.g.do_filetype_lua = 1 -- enable 
+
+vim.filetype.add({
+  extension = {
+    lock = 'yaml',
+  },
+  filename = {
+    ['.gitignore'] = 'conf',
+    ['launch.json'] = 'jsonc',
+    Podfile = 'ruby',
+    Brewfile = 'ruby',
+    Vagrantfile = 'ruby',
+  },
+  pattern = {
+    ['*.gradle'] = 'groovy',
+    ['*.env.*'] = 'env',
+  },
+})
+

vim/.config/nvim/lua/mappings.lua

@@ -0,0 +1,79 @@
+local function map(mode, lhs, rhs, opts)
+  local options = { noremap = true }
+  if opts then options = vim.tbl_extend('force', options, opts) end
+  vim.api.nvim_set_keymap(mode, lhs, rhs, options)
+end
+
+local function nmap(lhs, rhs, opts)
+  map('n', lhs, rhs, opts)
+end
+
+--- Mappings
+-- Essentials
+nmap(';', ':')
+nmap(',,', '<C-^>')
+nmap('<leader>w', ':w<CR>') -- TODO: stop this madness, :h autowrite
+nmap('Q', ':q!<CR>')
+nmap('<leader><space>', ':nohlsearch<CR>', { silent = true })
+
+-- Convenience
+nmap('yy', 'Y')
+nmap('Y', 'y$')
+nmap('N', 'Nzz')
+nmap('n', 'nzz')
+nmap('j', 'gj')
+nmap('k', 'gk')
+nmap('H', '^')
+nmap('L', '$')
+nmap('J', 'mzJ`z')
+nmap('K', '<Nop>')
+nmap('gQ', '<Nop>')
+
+-- Tabs
+nmap('<leader>t', ':tabnew<CR>')
+nmap('<Tab>', ':tabnext<CR>')
+nmap('<S-Tab>', ':tabprevious<CR>')
+nmap('<leader>1', '1gt')
+nmap('<leader>2', '2gt')
+nmap('<leader>3', '3gt')
+nmap('<leader>4', '4gt')
+nmap('<leader>5', '5gt')
+
+-- Visual mode
+map('v', '.', ':normal .<CR>')
+map('v', 'J', ':m \'>+1<CR>gv=gv')
+map('v', 'K', ':m \'<-2<CR>gv=gv')
+map('v', '<', '<gv')
+map('v', '>', '>gv')
+
+-- fzf
+nmap('<leader>ff', ':Files<CR>')
+nmap('<leader>ft', ':Files ~/Tmp<CR>')
+-- TODO: make the path relative to ~/Syncthing/Obsidian/Personal
+nmap('<leader>fo', ":call fzf#run(fzf#wrap(fzf#vim#with_preview({ 'source': 'fd . --type f --extension=md --follow --exclude .git ~/Syncthing/Obsidian/Personal' })))<CR>", { silent = true })
+
+-- vim-easy-align
+map('x', 'ga', ':EasyAlign<CR>') -- TODO: this should allow for gaip, but does not
+map('v', 'ga', ':EasyAlign<CR>')
+
+-- nvim-tree.lua
+nmap('<leader>n', ':NERDTreeToggle<CR>')
+nmap('<leader>N', ':NERDTreeFind<CR>')
+
+-- glow.vim
+nmap('<leader>p', ':Glow<CR>')
+
+-- fugitive.vim
+nmap('<leader>ga',':Gwrite<CR>')
+nmap('<leader>gs',':Git<CR>')
+nmap('<leader>gb',':Git blame<CR>')
+
+-- rails-vim
+nmap('<leader>a', ':A<CR>')
+
+-- test
+nmap('<leader>r', ':TestFile<CR>')
+nmap('<leader>R', ':TestSuite<CR>')
+
+-- CtrlSF
+nmap('<C-f>', '<Plug>CtrlSFPrompt')

vim/.config/nvim/lua/plugins/gitgutter.lua

@@ -0,0 +1,5 @@
+vim.g.gitgutter_sign_added = '│'
+vim.g.gitgutter_sign_modified = '│'
+vim.g.gitgutter_sign_removed = '│'
+vim.g.gitgutter_sign_modified_removed = '│'
+vim.g.gitgutter_sign_removed_first_line = '│'

vim/.config/nvim/lua/plugins/init.lua

@@ -0,0 +1,79 @@
+local g = vim.g      -- a table to access global variables
+
+local install_path = vim.fn.stdpath 'data' .. '/site/pack/packer/start/packer.nvim'
+if vim.fn.empty(vim.fn.glob(install_path)) > 0 then
+  vim.fn.execute('!git clone https://github.com/wbthomason/packer.nvim ' .. install_path)
+end
+
+require('packer').startup(function()
+  use 'wbthomason/packer.nvim'
+  use 'arcticicestudio/nord-vim'
+  use { 'nvim-treesitter/nvim-treesitter', run = ':TSUpdate' }
+  use 'tpope/vim-commentary'
+  use 'tpope/vim-surround'
+  use { 'junegunn/fzf', run = 'cd ~/.fzf && ./install --all' }
+  use 'junegunn/fzf.vim'
+  use 'junegunn/vim-easy-align'
+  use 'christoomey/vim-tmux-navigator'
+  use 'airblade/vim-gitgutter'
+  use 'tpope/vim-repeat'
+  use 'scrooloose/nerdtree' -- other file tree plugins are too fancy
+  use 'ellisonleao/glow.nvim'
+
+  -- Snippets
+  use 'L3MON4D3/LuaSnip'
+  use 'hrsh7th/nvim-cmp'
+  use 'saadparwaiz1/cmp_luasnip'
+  use 'rafamadriz/friendly-snippets'
+
+  use 'neovim/nvim-lspconfig'
+
+  -- tpope
+  use 'tpope/vim-fugitive'
+  use 'tpope/vim-rails'
+
+  -- tests
+  use 'vim-test/vim-test'
+  use 'benmills/vimux'
+
+  use 'dyng/ctrlsf.vim'
+
+  use 'nvim-lua/plenary.nvim'
+  use 'nvim-telescope/telescope.nvim'
+end)
+
+require 'plugins/treesitter'
+require 'plugins/gitgutter'
+require 'plugins/lsp'
+require 'plugins/luasnip'
+
+-- fzf
+g.fzf_preview_window = ''
+g.fzf_layout = { window = { width = 0.6, height = 0.6, border = 'sharp' } }
+
+-- NERDTree
+g.NERDTreeWinPos           = "right"
+g.NERDTreeMinimalUI        = 1
+g.NERDTreeDirArrows        = 1
+g.NERDTreeAutoDeleteBuffer = 1
+g.NERDTreeHijackNetrw      = 1
+
+-- vim-test
+g['test#strategy'] = 'vimux'
+
+-- CtrlSF
+g.ctrlsf_ackprg         = 'rg'
+g.ctrlsf_regex_pattern  = 1
+g.ctrlsf_case_sensitive = 'smart'
+g.ctrlsf_default_root   = 'project'
+g.ctrlsf_context        = '-B 1 -A 1'
+g.ctrlsf_position       = 'bottom'
+g.ctrlsf_winsize        = '40%'
+g.ctrlsf_mapping        = {
+  next = 'n',
+  prev = 'N',
+}
+
+-- fzf
+g.fzf_preview_window = ''
+g.fzf_layout = { window = { width = 0.6, height = 0.6, border = 'sharp' } }

vim/.config/nvim/lua/plugins/lsp.lua

@@ -0,0 +1,77 @@
+----------- LSP
+require'lspconfig'.solargraph.setup{}
+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.definition()<CR>', opts)
+  buf_set_keymap('n', 'gr', '<cmd>lua vim.lsp.buf.references()<CR>', opts)
+  buf_set_keymap('n', 'K', '<cmd>lua vim.lsp.buf.hover()<CR>', opts)
+  buf_set_keymap('n', '<space>=', '<cmd>lua 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
+
+local cmp = require 'cmp'
+cmp.setup {
+  snippet = {
+    expand = function(args)
+      require('luasnip').lsp_expand(args.body)
+    end,
+  },
+  mapping = {
+    ['<C-p>'] = cmp.mapping.select_prev_item(),
+    ['<C-n>'] = cmp.mapping.select_next_item(),
+    ['<C-d>'] = cmp.mapping.scroll_docs(-4),
+    ['<C-f>'] = cmp.mapping.scroll_docs(4),
+    ['<C-Space>'] = cmp.mapping.complete(),
+    ['<C-e>'] = cmp.mapping.close(),
+    ['<CR>'] = cmp.mapping.confirm {
+      behavior = cmp.ConfirmBehavior.Replace,
+      select = true,
+    },
+    ['<Tab>'] = function(fallback)
+      if cmp.visible() then
+        cmp.select_next_item()
+      elseif luasnip.expand_or_jumpable() then
+        vim.fn.feedkeys(vim.api.nvim_replace_termcodes('<Plug>luasnip-expand-or-jump', true, true, true), '')
+      else
+        fallback()
+      end
+    end,
+    ['<S-Tab>'] = function(fallback)
+      if cmp.visible() then
+        cmp.select_prev_item()
+      elseif luasnip.jumpable(-1) then
+        vim.fn.feedkeys(vim.api.nvim_replace_termcodes('<Plug>luasnip-jump-prev', true, true, true), '')
+      else
+        fallback()
+      end
+    end,
+  },
+  sources = {
+    { name = 'nvim_lsp' },
+    { name = 'luasnip' },
+  },
+}

vim/.config/nvim/lua/plugins/luasnip.lua

@@ -0,0 +1,57 @@
+-- TODO: figure out how to simplify the snippets config
+-- TODO: figure out how to create custom snippets
+-- TODO: is it possible to use luasnip without nvim-cpm?
+
+local function prequire(...)
+local status, lib = pcall(require, ...)
+if (status) then return lib end
+    return nil
+end
+
+local luasnip = prequire('luasnip')
+local cmp = prequire("cmp")
+
+local t = function(str)
+    return vim.api.nvim_replace_termcodes(str, true, true, true)
+end
+
+local check_back_space = function()
+    local col = vim.fn.col('.') - 1
+    if col == 0 or vim.fn.getline('.'):sub(col, col):match('%s') then
+        return true
+    else
+        return false
+    end
+end
+
+_G.tab_complete = function()
+    if cmp and cmp.visible() then
+        cmp.select_next_item()
+    elseif luasnip and luasnip.expand_or_jumpable() then
+        return t("<Plug>luasnip-expand-or-jump")
+    elseif check_back_space() then
+        return t "<Tab>"
+    else
+        cmp.complete()
+    end
+    return ""
+end
+_G.s_tab_complete = function()
+    if cmp and cmp.visible() then
+        cmp.select_prev_item()
+    elseif luasnip and luasnip.jumpable(-1) then
+        return t("<Plug>luasnip-jump-prev")
+    else
+        return t "<S-Tab>"
+    end
+    return ""
+end
+
+vim.api.nvim_set_keymap("i", "<Tab>", "v:lua.tab_complete()", {expr = true})
+vim.api.nvim_set_keymap("s", "<Tab>", "v:lua.tab_complete()", {expr = true})
+vim.api.nvim_set_keymap("i", "<S-Tab>", "v:lua.s_tab_complete()", {expr = true})
+vim.api.nvim_set_keymap("s", "<S-Tab>", "v:lua.s_tab_complete()", {expr = true})
+vim.api.nvim_set_keymap("i", "<C-E>", "<Plug>luasnip-next-choice", {})
+vim.api.nvim_set_keymap("s", "<C-E>", "<Plug>luasnip-next-choice", {})
+
+require("luasnip.loaders.from_vscode").lazy_load()

vim/.config/nvim/lua/plugins/treesitter.lua

@@ -0,0 +1,12 @@
+-- Tree-sitter
+require('nvim-treesitter.configs').setup {
+  -- one of "all", "maintained" (parsers with maintainers), or a list of languages
+  ensure_installed = { 'bash', 'c', 'cpp', 'c_sharp', 'clojure', 'cmake', 'comment', 'commonlisp',
+    'css', 'dockerfile', 'elixir', 'erlang', 'fish', 'go', 'html', 'http', 'java',
+    'javascript', 'json', 'kotlin', 'latex', 'lua', 'make', 'markdown', 'perl', 'php',
+    'python', 'ruby', 'rust', 'scss', 'swift', 'toml', 'tsx', 'vim', 'vue', 'yaml' },
+  -- ignore_install = { 'norg' },
+  highlight = { enable = true },
+  indent = { enable = true },
+  autopairs = { enable = true },
+}

vim/.config/nvim/lua/settings.lua

@@ -0,0 +1,89 @@
+-- TODO:
+-- " Conceal mostly for markdown TODO :h conceallevel
+-- set conceallevel=2
+-- " Highlight VCS conflict markers TODO: translate to LUA
+-- match ErrorMsg '^\(<\|=\|>\)\{7\}\([^=].\+\)\?$'
+
+-- local g = vim.g      -- a table to access global variables
+local opt = vim.opt  -- to set options
+local cmd = vim.cmd  -- to set options
+
+cmd('au TextYankPost * lua vim.highlight.on_yank { timeout = 250 }')
+cmd('colorscheme nord')
+
+opt.smartindent   = true            -- Autoindenting when starting a new line
+opt.tabstop       = 2               -- Tab counts as 2 columns
+opt.shiftwidth    = 2               -- Numbers of spaces to (auto)indent
+opt.expandtab     = true            -- Tabs to spaces
+opt.clipboard     = 'unnamedplus'   -- Share clipboard with the OS
+opt.number        = true            -- Display line numbers
+opt.fillchars = {
+  vert = '▕',   -- alternatives │
+  eob = ' ',    -- suppress ~ at EndOfBuffer
+  msgsep = '‾',
+  diff = '⣿',
+  fold = ' ',
+  foldopen = '▾',
+  foldsep = '│',
+  foldclose = '▸',
+}
+opt.synmaxcol     = 500             -- Do not try to highlight lines longer than 500 characters
+opt.lazyredraw    = true            -- Do not redraw while running macros
+opt.showmatch     = true            -- Show matching braces
+opt.matchtime     = 2               -- Show matching braces for 2 tenths of second
+opt.showmode      = true            -- Shows when you are in insert mode
+opt.title         = true            -- Show title in console status bar
+opt.laststatus    = 3               -- Single status line
+opt.wrap          = false           -- Dont wrap lines
+opt.scrolloff     = 5               -- Keep 5 rows on the screen when scrolling
+opt.sidescrolloff = 15              -- Horizontal scrolloff
+opt.visualbell    = false           -- No visual bell
+opt.backup        = false           -- No backups
+opt.writebackup   = false           -- No backups
+opt.swapfile      = false           -- No backups
+opt.mouse         = 'a'             -- Support mouse (for proper mouse highlight)
+opt.list          = true            -- List mode
+opt.listchars     = { trail = '·', tab = '->' }
+opt.timeoutlen    = 1000            -- Delay for mappings
+opt.ttimeoutlen   = 0               -- Delay between modes
+opt.shellcmdflag  = '-ic'           -- Enables aliases from .bashrc in :! commands
+
+if vim.fn.executable('rg') > 0 then
+  vim.o.grepprg = [[rg --glob "!.git" --no-heading --vimgrep --follow $*]]
+end
+
+-- Use in vertical diff mode, blank lines to keep sides aligned, Ignore whitespace changes
+opt.diffopt = vim.opt.diffopt
+  + {
+    'vertical',
+    'iwhite',
+    'hiddenoff',
+    'foldcolumn:0',
+    'context:4',
+    'algorithm:histogram',
+    'indent-heuristic',
+  }
+
+opt.shortmess = {
+  t = true, -- truncate file messages at start
+  A = true, -- ignore annoying swap file messages
+  o = true, -- file-read message overwrites previous
+  O = true, -- file-read message overwrites previous
+  T = true, -- truncate non-file messages in middle
+  f = true, -- (file x of x) instead of just (x of x
+  F = true, -- Don't give file info when editing a file, NOTE: this breaks autocommand messages
+  s = true,
+  I = true, -- disable welcome message (:intro)
+  a = true, -- shortmess for everything
+  c = true,
+  W = true, -- Don't show [w] or written when writing
+}
+
+-- ignore when autocompleting
+opt.wildignore = {
+  '*.aux', '*.out', '*.toc', '*.o', '*.obj',
+  '*.dll', '*.jar', '*.pyc', '*.rbc', '*.class',
+  '*.gif', '*.ico', '*.jpg', '*.jpeg', '*.png',
+  '*.avi', '*.wav', '*.*~', '*~ ', '*.swp',
+  '.lock', '.DS_Store', 'tags.lock'
+}