nvim: added clearing of preview files for markdown

.config/nvim/after/ftplugin/markdown.lua

@@ -1,8 +1,13 @@
-vim.api.nvim_create_autocmd({ 'BufEnter', 'FileType' },
+vim.api.nvim_create_autocmd({ 'BufEnter' },
   {
     callback = function() vim.o.foldenable = false end
   })
 
+vim.api.nvim_create_autocmd({ 'VimLeave' },
+  {
+    callback = function() os.execute('mdclear ' .. vim.fn.expand('%')) end
+  })
+
 vim.o.shiftwidth = 2
 vim.o.softtabstop = 2
 vim.o.textwidth = 100

.local/bin/etc/nvim/mdclear

@@ -0,0 +1,13 @@
+#!/usr/bin/env sh
+
+# Clears the files created for previewing markdown files in nvim
+# based on a program by lukesmithxyz
+
+case "$1" in
+	*.md)
+	file=$(readlink -f "$1")
+	dir=$(dirname "$file")
+	base="${file%.*}"
+        find "$dir"  -maxdepth 1 -type f -regextype gnu-awk -regex "^$base\\.(html|pdf)" -delete ;;
+	*) printf "Give .md file as argument.\\n" ;;
+esac