certmanager: Add more debug logging around cert indexing Currently it's not obvious which directories have been indexed (especially when the resulting index is empty), or why certain files have been skipped.

author: Matthew Wild <mwild1@gmail.com>
date: Mon, 24 Feb 2025 17:48:58 +0000
parent: 13703:99d2100d2918
--- a/core/certmanager.lua	Sat Feb 22 21:48:07 2025 +0100
+++ b/core/certmanager.lua	Mon Feb 24 17:48:58 2025 +0000
@@ -91,7 +91,7 @@
 				index_certs(full, files_by_name, depth_limit-1);
 			end
 		elseif file:find("%.crt$") or file:find("fullchain") then -- This should catch most fullchain files
-			local f = io_open(full);
+			local f, err = io_open(full);
 			if f then
 				-- TODO look for chained certificates
 				local firstline = f:read();
@@ -113,13 +113,17 @@
 								files_by_name[name] = { [full] = services; };
 							end
 						end
+					else
+						log("debug", "Skipping expired certificate: %s", full);
 					end
 				end
 				f:close();
+			elseif err then
+				log("debug", "Failed to open file for indexing: %s", full);
 			end
 		end
 	end
-	log("debug", "Certificate index: %q", files_by_name);
+	log("debug", "Certificate index in %s: %q", dir, files_by_name);
 	-- | hostname | filename | service |
 	return files_by_name;
 end