feat(actions): add expand all action

Author: kyazdani42

lua/nvim-tree/actions/expand-all.lua

@@ -0,0 +1,30 @@
+local core = require "nvim-tree.core"
+local renderer = require "nvim-tree.renderer"
+
+local M = {}
+
+local function expand(node)
+  node.open = true
+  if #node.nodes == 0 then
+    core.get_explorer():expand(node)
+  end
+end
+
+local function iterate(_node)
+  for _, node in pairs(_node.nodes) do
+    if node.nodes and not node.open then
+      expand(node)
+    end
+
+    if node.open then
+      iterate(node)
+    end
+  end
+end
+
+function M.fn()
+  iterate(core.get_explorer())
+  renderer.draw()
+end
+
+return M

lua/nvim-tree/actions/init.lua

@@ -45,6 +45,7 @@ local M = {
     { key = "q", action = "close" },
     { key = "g?", action = "toggle_help" },
     { key = "W", action = "collapse_all" },
+    { key = "E", action = "expand_all" },
     { key = "S", action = "search_node" },
     { key = ".", action = "run_file_command" },
     { key = "<C-k>", action = "toggle_file_info" },
@@ -57,6 +58,7 @@ local keypress_funcs = {
   close = view.close,
   close_node = require("nvim-tree.actions.movements").parent_node(true),
   collapse_all = require("nvim-tree.actions.collapse-all").fn,
+  expand_all = require("nvim-tree.actions.expand-all").fn,
   copy_absolute_path = require("nvim-tree.actions.copy-paste").copy_absolute_path,
   copy_name = require("nvim-tree.actions.copy-paste").copy_filename,
   copy_path = require("nvim-tree.actions.copy-paste").copy_path,