From 1e6bb57c4f8c0c0b89c69cffe624e0d85d2c0a7f Mon Sep 17 00:00:00 2001
From: "Kenneth Benzie (Benie)" <benie@infektor.net>
Date: Sat, 2 Mar 2024 15:19:31 +0000
Subject: [PATCH] Customize netrw to my linking

---
 init.lua      |  1 +
 lua/netrw.lua | 30 ++++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 lua/netrw.lua

diff --git a/init.lua b/init.lua
index 189cc68..f183645 100644
--- a/init.lua
+++ b/init.lua
@@ -1,5 +1,6 @@
 require('settings')
 require('mappings')
+require('netrw')
 
 local lazypath = vim.fn.stdpath("data") .. "/lazy/lazy.nvim"
 if not vim.loop.fs_stat(lazypath) then
diff --git a/lua/netrw.lua b/lua/netrw.lua
new file mode 100644
index 0000000..2f4fb14
--- /dev/null
+++ b/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)