From 3e001b1fe61250ea6c87bf60a31fd4f8e3cfdf9f Mon Sep 17 00:00:00 2001
From: Andreas Wachs <andreas@wachs.dk>
Date: Fri, 7 Jul 2023 06:56:40 +0200
Subject: [PATCH] Add neotree

---
 lua/custom/plugins/filetree.lua | 138 ++++++++++++++++++++++++++++++++
 1 file changed, 138 insertions(+)
 create mode 100644 lua/custom/plugins/filetree.lua

diff --git a/lua/custom/plugins/filetree.lua b/lua/custom/plugins/filetree.lua
new file mode 100644
index 00000000..481917fd
--- /dev/null
+++ b/lua/custom/plugins/filetree.lua
@@ -0,0 +1,138 @@
+return {
+  "nvim-neo-tree/neo-tree.nvim",
+  dependencies = { "MunifTanjim/nui.nvim" },
+  cmd = "Neotree",
+  init = function() vim.g.neo_tree_remove_legacy_commands = true end,
+  opts = function()
+    return {
+      auto_clean_after_session_restore = true,
+      close_if_last_window = true,
+      sources = { "filesystem", "buffers", "git_status" },
+      source_selector = {
+        sources = {
+          { source = "filesystem", display_name = " 󰉓 Files " },
+          { source = "git_status", display_name = " 󰊢 Git " },
+        },
+      },
+      default_component_configs = {
+        icon = {
+          folder_empty = "!",
+          folder_empty_open = "!O",
+        },
+        git_status = {
+          symbols = {
+            renamed   = "󰁕",
+            unstaged  = "💣",
+          },
+        },
+      },
+      document_symbols = {
+        kinds = {
+          File = { icon = "󰈙", hl = "Tag" },
+          Namespace = { icon = "󰌗", hl = "Include" },
+          Package = { icon = "󰏖", hl = "Label" },
+          Class = { icon = "󰌗", hl = "Include" },
+          Property = { icon = "󰆧", hl = "@property" },
+          Enum = { icon = "󰒻", hl = "@number" },
+          Function = { icon = "󰊕", hl = "Function" },
+          String = { icon = "󰀬", hl = "String" },
+          Number = { icon = "󰎠", hl = "Number" },
+          Array = { icon = "󰅪", hl = "Type" },
+          Object = { icon = "󰅩", hl = "Type" },
+          Key = { icon = "󰌋", hl = "" },
+          Struct = { icon = "󰌗", hl = "Type" },
+          Operator = { icon = "󰆕", hl = "Operator" },
+          TypeParameter = { icon = "󰊄", hl = "Type" },
+          StaticMethod = { icon = '󰠄 ', hl = 'Function' },
+        },
+      },
+      commands = {
+        parent_or_close = function(state)
+          local node = state.tree:get_node()
+          if (node.type == "directory" or node:has_children()) and node:is_expanded() then
+            state.commands.toggle_node(state)
+          else
+            require("neo-tree.ui.renderer").focus_node(state, node:get_parent_id())
+          end
+        end,
+        child_or_open = function(state)
+          local node = state.tree:get_node()
+          if node.type == "directory" or node:has_children() then
+            if not node:is_expanded() then -- if unexpanded, expand
+              state.commands.toggle_node(state)
+            else -- if expanded and has children, seleect the next child
+              require("neo-tree.ui.renderer").focus_node(state, node:get_child_ids()[1])
+            end
+          else -- if not a directory just open it
+            state.commands.open(state)
+          end
+        end,
+        copy_selector = function(state)
+          local node = state.tree:get_node()
+          local filepath = node:get_id()
+          local filename = node.name
+          local modify = vim.fn.fnamemodify
+
+          local results = {
+            e = { val = modify(filename, ":e"), msg = "Extension only" },
+            f = { val = filename, msg = "Filename" },
+            F = { val = modify(filename, ":r"), msg = "Filename w/o extension" },
+            h = { val = modify(filepath, ":~"), msg = "Path relative to Home" },
+            p = { val = modify(filepath, ":."), msg = "Path relative to CWD" },
+            P = { val = filepath, msg = "Absolute path" },
+          }
+
+          local messages = {
+            { "\nChoose to copy to clipboard:\n", "Normal" },
+          }
+          for i, result in pairs(results) do
+            if result.val and result.val ~= "" then
+              vim.list_extend(messages, {
+                { ("%s."):format(i), "Identifier" },
+                { (" %s: "):format(result.msg) },
+                { result.val, "String" },
+                { "\n" },
+              })
+            end
+          end
+          vim.api.nvim_echo(messages, false, {})
+          local result = results[vim.fn.getcharstr()]
+          if result and result.val and result.val ~= "" then
+            vim.fn.setreg("+", result.val)
+          end
+        end,
+        find_in_dir = function(state)
+          local node = state.tree:get_node()
+          local path = node:get_id()
+          require("telescope.builtin").find_files {
+            cwd = node.type == "directory" and path or vim.fn.fnamemodify(path, ":h"),
+          }
+        end,
+      },
+      window = {
+        width = 30,
+        mappings = {
+          ["<space>"] = false, -- disable space until we figure out which-key disabling
+          ["[b"] = "prev_source",
+          ["]b"] = "next_source",
+          Y = "copy_selector",
+          h = "parent_or_close",
+          l = "child_or_open",
+          o = "open",
+        },
+      },
+      filesystem = {
+        follow_current_file = true,
+        hijack_netrw_behavior = "open_current",
+        use_libuv_file_watcher = true,
+      },
+      event_handlers = {
+        {
+          event = "neo_tree_buffer_enter",
+          handler = function(_) vim.opt_local.signcolumn = "auto" end,
+        },
+      },
+    }
+  end,
+}
+