chore: rename lib folder to nvim-tree

Allows external access to the lua api and follow neovim plugins better
practices

lua/nvim-tree/config.lua

@@ -0,0 +1,99 @@
+local M = {}
+
+function M.get_icon_state()
+  local show_icons = vim.g.nvim_tree_show_icons or { git = 1, folders = 1, files = 1 }
+  local icons = {
+    default = "",
+    symlink = "",
+    git_icons = {
+      unstaged = "✗",
+      staged = "✓",
+      unmerged = "",
+      renamed = "➜",
+      untracked = "★",
+      deleted = ""
+    },
+    folder_icons = {
+      default = "",
+      open = "",
+      empty = "",
+      empty_open = "",
+      symlink = "",
+    }
+  }
+
+  local user_icons = vim.g.nvim_tree_icons
+  if user_icons then
+    if user_icons.default then
+      icons.default = user_icons.default
+      icons.symlink = user_icons.default
+    end
+    if user_icons.symlink then
+      icons.symlink = user_icons.symlink
+    end
+    for key, val in pairs(user_icons.git or {}) do
+      if icons.git_icons[key] then
+        icons.git_icons[key] = val
+      end
+    end
+    for key, val in pairs(user_icons.folder or {}) do
+      if icons.folder_icons[key] then
+        icons.folder_icons[key] = val
+      end
+    end
+  end
+
+  return {
+    show_file_icon = show_icons.files == 1 and vim.g.nvim_web_devicons == 1,
+    show_folder_icon = show_icons.folders == 1,
+    show_git_icon = show_icons.git == 1,
+    icons = icons
+  }
+end
+
+function M.get_bindings()
+  local keybindings = vim.g.nvim_tree_bindings or {}
+  return {
+    edit            = keybindings.edit or {'<CR>', 'o'},
+    edit_vsplit     = keybindings.edit_vsplit or '<C-v>',
+    edit_split      = keybindings.edit_split or '<C-x>',
+    edit_tab        = keybindings.edit_tab or '<C-t>',
+    close_node      = keybindings.close_node or {'<S-CR>', '<BS>'},
+    preview         = keybindings.preview or '<Tab>',
+    toggle_ignored  = keybindings.toggle_ignored or 'I',
+    toggle_dotfiles = keybindings.toggle_dotfiles or 'H',
+    refresh         = keybindings.refresh or 'R',
+    cd              = keybindings.cd or '<C-]>',
+    create          = keybindings.create or 'a',
+    remove          = keybindings.remove or 'd',
+    rename          = keybindings.rename or 'r',
+    full_rename     = keybindings.full_rename or '<C-r>',
+    cut             = keybindings.cut or 'x',
+    copy            = keybindings.copy or 'c',
+    paste           = keybindings.paste or 'p',
+    prev_git_item   = keybindings.prev_git_item or '[c',
+    next_git_item   = keybindings.next_git_item or ']c',
+    dir_up          = keybindings.dir_up or '-',
+    close           = keybindings.close or 'q',
+  }
+end
+
+function M.window_options()
+  local opts = {}
+  opts.winhl = 'EndOfBuffer:NvimTreeEndOfBuffer,Normal:NvimTreeNormal,CursorLine:NvimTreeCursorLine,VertSplit:NvimTreeVertSplit'
+  if vim.g.nvim_tree_side == 'right' then
+    opts.side = 'L'
+    opts.open_command = 'h'
+    opts.preview_command = 'l'
+    opts.split_command = 'nosplitright'
+  else
+    opts.side = 'H'
+    opts.open_command = 'l'
+    opts.preview_command = 'h'
+    opts.split_command = 'splitright'
+  end
+
+  return opts
+end
+
+return M