Customize netrw to my linking

lua/netrw.lua

@@ -0,0 +1,30 @@
+-- Disable banner
+vim.g.netrw_banner = 0
+
+-- Map - key to open netrw in current files parent directory
+vim.keymap.set('n', '-', function()
+  -- Get the filename before invoking netrw
+  local filename = vim.fn.expand('%:t')
+
+  -- Invoke netrw on the directory containing the current file
+  vim.fn.execute(string.format("edit %s", vim.fn.expand('%:hp')))
+
+  -- Move the cursor to the line matching file
+  local netrw_liststyle = vim.api.nvim_buf_get_var(
+      vim.api.nvim_get_current_buf(), 'netrw_liststyle')
+  local pattern = nil
+  -- TODO: Replace this with something simpler, perhaps a loop over the netrw
+  -- buffer lines to get the line number containing the filename string.
+  if netrw_liststyle and netrw_liststyle == 2 then
+    -- tpope's magic pattern for list style with multiple files in columns
+    pattern = '\\%(^\\|\\s\\+\\)\zs'
+      .. vim.fn.escape(filename .. '.*[]~\\')
+      .. '[/*|@=]\\=\\%($\\|\\s\\+\\)'
+  else
+    -- tpope's magic pattern for all other list styles
+    pattern = '^\\%(| \\)*'
+      .. vim.fn.escape(filename, '.*[]~\\')
+      .. '[/*|@=]\\=\\%($\\|\\t\\)'
+  end
+  vim.fn.search(pattern, 'wc')
+end)