Add logging for potential causes of high CPU usage

public/app/themes/clarity/functions.php

@@ -126,3 +126,56 @@
 $search = new MOJ\Intranet\Search();
 $search->hooks();
 
+/**
+ * Add logging on potential causes of high CPU usage
+ */
+
+// Log on document_serve
+add_action('document_serve', function ($file, $post_id, $attach_id) {
+    error_log('CDPT_Debug: document_serve: ' . $file . ' ' . $post_id . ' ' . $attach_id);
+}, 10, 3);
+
+// Log on document_serve_done
+add_action('document_serve_done', function ($file, $attach_id ) {
+    error_log('CDPT_Debug: document_serve_done: ' . $file . ' ' . $attach_id);
+}, 10, 2);
+
+// Log on document edit
+add_action('document_edit', function () {
+    error_log('CDPT_Debug: document_edit');
+}, 10);
+
+// Log on document saved
+add_action('document_saved', function ($doc_id, $attach_id) {
+    error_log('CDPT_Debug: document_saved: ' . $doc_id . ' ' . $attach_id);
+}, 10, 2);
+
+// Log on attachment upload
+add_action('add_attachment', function ($attach_id) {
+    error_log('CDPT_Debug: add_attachment: ' . $attach_id);
+}, 10, 1);
+
+// Log on edit post
+add_action('edit_post', function ($post_id) {
+    error_log('CDPT_Debug: edit_post: ' . $post_id);
+}, 10, 1);
+
+// Log on post save
+add_action('save_post', function ($post_id) {
+    error_log('CDPT_Debug: save_post: ' . $post_id);
+}, 10, 1);
+
+// Log on S3 upload - as3cf_post_upload_attachment
+add_action('as3cf_post_upload_attachment', function ($source_id, $item) {
+    error_log('CDPT_Debug: as3cf_post_upload_attachment: ' . $source_id);
+}, 10, 3);
+
+// Log on as3cf_pre_upload_object
+add_action('as3cf_pre_upload_object', function ($args) {
+    error_log('CDPT_Debug: as3cf_pre_upload_object');
+}, 10, 1);
+
+// Log on as3cf_post_upload_item
+add_action('as3cf_post_upload_item', function ($item) {
+    error_log('CDPT_Debug: as3cf_post_upload_item');
+}, 10, 1);