nvim: use absolute path in config-autosource-autocmd

.config/nvim/init.lua

@@ -24,7 +24,10 @@ vim.api.nvim_create_autocmd(
     { 'BufWritePost' },
     {
         group = 'config_init',
-        pattern = { '*/nvim/lua/my/*.lua', '*/nvim/init.lua' },
+        pattern = {
+            vim.fn.stdpath('config') .. '/lua/my/*.lua',
+            vim.fn.stdpath('config') .. '/init.lua'
+        },
         callback = function()
             -- exclude plugins.lua, because it is sourced in another autocmd
             if not vim.api.nvim_buf_get_name(0):match('plugins.lua$') then

.config/nvim/lua/my/plugins.lua

@@ -120,7 +120,7 @@ vim.api.nvim_create_autocmd(
     { 'BufWritePost' },
     {
         group = 'config_plugins',
-        pattern = { '*/nvim/lua/my/plugins.lua' },
+        pattern = { vim.fn.stdpath('config') .. '/lua/my/plugins.lua' },
         command =[[source <afile> | PackerInstall]]
     }
 )