vim: replace NERDTree with nvim-tree.lua

config/nvim/after/plugin/nerdtree.lua

@@ -1,6 +0,0 @@
-local nmap = require'fs.keymap'.nmap
-
--- toggle NERDTree
-nmap { '<leader>n', '<cmd>NERDTreeToggle<cr>' }
-
-

config/nvim/after/plugin/nvim-tree.lua

@@ -0,0 +1,76 @@
+local nmap = require'fs.keymap'.nmap
+
+nmap { '<c-n>',     '<cmd>NvimTreeToggle<cr>' }
+nmap { '<leader>n', '<cmd>NvimTreeFindFileToggle<cr>' }
+
+-- helper to set vim.g options that will be moved to setup() later
+local function set_globals(tbl)
+  local g = vim.g
+  for k, v in pairs(tbl) do
+    g['nvim_tree_' .. k] = v
+  end
+end
+
+set_globals {
+  add_trailing = 1,       -- add trailing / to folders
+  group_empty = 1,        -- folders that contain only one folder are grouped
+  indent_markers = 1,     -- show indent markers
+  git_hl = 1,             -- enable highlight based on git attributes
+
+  icons = {
+    default = '',        -- defailt icon for files
+    symlink = '',        -- default icon for symlinks
+  },
+}
+
+require'nvim-tree'.setup {
+  auto_close = true,      -- close vim if tree is the last window
+  update_cwd = true,      -- refresh tree on DirChanged
+
+  git = {
+    ignore = false,       -- don't hide files from .gitignore
+  },
+
+  view = {
+    width = 35,           -- a little wider than the default 30
+  },
+
+  filters = {
+    dotfiles = false,     -- show files starting with a .
+    custom = { '.git' },  -- don't show .git directory
+  },
+}
+
+base03  = { cterm =  8, gui = '#002b36' }
+base02  = { cterm =  0, gui = '#073642' }
+base01  = { cterm = 10, gui = '#586e75' }
+base00  = { cterm = 11, gui = '#657b83' }
+base0   = { cterm = 12, gui = '#839496' }
+base1   = { cterm = 14, gui = '#93a1a1' }
+base2   = { cterm =  7, gui = '#eee8d5' }
+base3   = { cterm = 15, gui = '#fdf6e3' }
+yellow  = { cterm =  3, gui = '#b58900' }
+orange  = { cterm =  9, gui = '#cb4b16' }
+red     = { cterm =  1, gui = '#dc322f' }
+magenta = { cterm =  5, gui = '#d33682' }
+violet  = { cterm = 13, gui = '#6c71c4' }
+blue    = { cterm =  4, gui = '#268bd2' }
+cyan    = { cterm =  6, gui = '#2aa198' }
+green   = { cterm =  2, gui = '#859900' }
+
+local function highlight(group, color)
+  vim.cmd(
+    vim.fn.printf(
+      'highlight %s ctermfg=%d guifg=%s',
+      group, color.cterm, color.gui))
+end
+
+highlight('NvimTreeSpecialFile'  , base2  )
+highlight('NvimTreeIndentMarker' , base01 )
+highlight('NvimTreeGitStaged'    , green  )
+highlight('NvimTreeGitRenamed'   , yellow )
+highlight('NvimTreeGitNew'       , yellow )
+highlight('NvimTreeGitDirty'     , yellow )
+highlight('NvimTreeGitDeleted'   , orange )
+highlight('NvimTreeGitMerge'     , red    )
+

config/nvim/lua/fs/plugins.lua

@@ -3,13 +3,11 @@ local plugins = function(use)
 
     -- Visuals ----------------------------------------------------------------
     use 'altercation/vim-colors-solarized'
-    use {
-        'nvim-lualine/lualine.nvim',
-        requires = { 'kyazdani42/nvim-web-devicons', opt = true }
-    }
+    use 'kyazdani42/nvim-web-devicons'
+    use 'nvim-lualine/lualine.nvim'
 
     -- Navigation -------------------------------------------------------------
-    use { 'scrooloose/nerdtree', cmd = 'NERDTreeToggle' }
+    use 'kyazdani42/nvim-tree.lua'
     use 'junegunn/rainbow_parentheses.vim'
     use 'ctrlpvim/ctrlp.vim'