neovim: add nvim-tree

neovim/.config/nvim/after/plugin/netrw.lua

@@ -1 +0,0 @@
-vim.g.netrw_banner = 0

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

@@ -0,0 +1,100 @@
+local function on_attach(bufnr)
+  local api = require("nvim-tree.api")
+
+  local function opts(desc)
+    return {
+      desc = "nvim-tree: " .. desc,
+      buffer = bufnr,
+      noremap = true,
+      silent = true,
+      nowait = true,
+    }
+  end
+
+  vim.keymap.set("n", "tn", api.node.open.tab, opts("tabnew"))
+  vim.keymap.set("n", "l", api.node.open.edit, opts("edit"))
+  vim.keymap.set("n", "<CR>", api.node.open.edit, opts("edit ENTER"))
+  vim.keymap.set("n", "@", api.tree.change_root_to_node, opts("change root"))
+  vim.keymap.set("n", "<C-v>", api.node.open.vertical, opts("vertical split"))
+  vim.keymap.set("n", "<C-h>", api.node.open.horizontal, opts("horizontal split"))
+  vim.keymap.set("n", "a", api.fs.create, opts("create file"))
+  vim.keymap.set("n", "d", api.fs.remove, opts("remove file"))
+  vim.keymap.set("n", "r", api.fs.rename, opts("rename file"))
+  vim.keymap.set("n", "R", api.tree.reload, opts("reload"))
+  vim.keymap.set("n", "x", api.fs.cut, opts("cut"))
+  vim.keymap.set("n", "y", api.fs.copy.filename, opts("copy filename"))
+  vim.keymap.set("n", "Y", api.fs.copy.relative_path, opts("copy relative path file"))
+  vim.keymap.set("n", "W", api.tree.collapse_all, opts("collapse all"))
+  vim.keymap.set("n", "I", api.tree.toggle_gitignore_filter, opts("toggle git ignored files"))
+  vim.keymap.set("n", "H", api.tree.toggle_hidden_filter, opts("toggle hidden files"))
+  vim.keymap.set("n", "<TAB>", api.node.open.preview, opts("preview node"))
+  vim.keymap.set("n", "F", api.live_filter.clear, opts("clear filter"))
+  vim.keymap.set("n", "f", api.live_filter.start, opts("filter"))
+  vim.keymap.set("n", "q", api.tree.close, opts("quit"))
+  vim.keymap.set("n", "p", api.fs.paste, opts("paste"))
+end
+
+require("nvim-tree").setup({
+  disable_netrw = true,
+  hijack_netrw = true,
+  hijack_cursor = true,
+  open_on_tab = false,
+  update_cwd = true,
+  auto_reload_on_write = true,
+  reload_on_bufenter = true,
+  update_focused_file = {
+    enable = true,
+  },
+  view = {
+    width = 30,
+    adaptive_size = false,
+    side = "left",
+    preserve_window_proportions = true,
+    centralize_selection = true,
+  },
+  renderer = {
+    add_trailing = true,
+    group_empty = false,
+    highlight_git = true,
+    indent_markers = {
+      enable = true,
+    },
+    icons = {
+      show = {
+        git = true,
+        file = true,
+        folder = true,
+      },
+      glyphs = {
+        default = "",
+        symlink = "",
+        git = {
+          unstaged = "U",
+          staged = "S",
+          unmerged = "M",
+          renamed = "R",
+          untracked = "N",
+          deleted = "D",
+        },
+      },
+    },
+  },
+  filters = {
+    custom = { "^.git$" },
+  },
+  actions = {
+    open_file = {
+      resize_window = true,
+      quit_on_open = true,
+    },
+  },
+  git = {
+    ignore = true,
+  },
+  diagnostics = {
+    enable = true,
+    show_on_dirs = true,
+    icons = { hint = "", info = "", warning = "", error = "" },
+  },
+  on_attach = on_attach,
+})

neovim/.config/nvim/after/plugin/remaps.lua

@@ -4,7 +4,7 @@ vim.keymap.set({ "n", "i", "v" }, "<PageUp>", "<nop>")
 vim.keymap.set({ "n", "i", "v" }, "<F1>", "<nop>")
 vim.keymap.set("n", "q:", "<nop>")
 
-vim.keymap.set("n", "<leader><leader>", vim.cmd.Ex)
+vim.keymap.set("n", "<leader><leader>", vim.cmd.NvimTreeToggle)
 vim.keymap.set("n", "<C-c>", vim.cmd.nohl)
 
 -- Move lines easily

neovim/.config/nvim/init.lua

@@ -49,6 +49,9 @@ require("packer").startup(function(use)
 
   use({ "mbbill/undotree" })
 
+  use({ "kyazdani42/nvim-tree.lua" })
+  use({ "kyazdani42/nvim-web-devicons" })
+
   if PACKER_BOOTSTRAP then
     require("packer").sync()
   end