# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1453475122 -3600
# Node ID f21147d56bc48180973ebc8f122d528a841edaca
# Parent  66156e4d5274606adb21187e75ec25aecd0e6918
mod_mam_muc: Yell loudly when archive store can't be opened

diff -r 66156e4d5274 -r f21147d56bc4 mod_mam_muc/mod_mam_muc.lua
--- a/mod_mam_muc/mod_mam_muc.lua	Fri Jan 22 16:04:32 2016 +0100
+++ b/mod_mam_muc/mod_mam_muc.lua	Fri Jan 22 16:05:22 2016 +0100
@@ -50,12 +50,16 @@
 
 local archive_store = "muc_log";
 local archive = module:open_store(archive_store, "archive");
-if not archive or archive.name == "null" then
-	module:log("error", "Could not open archive storage");
-	return
-elseif not archive.find then
-	module:log("error", "mod_%s does not support archiving, switch to mod_storage_sql2", archive._provided_by);
-	return
+
+if archive.name == "null" or not archive.find then
+	if not archive.find then
+		module:log("error", "Attempt to open archive storage returned a valid driver but it does not seem to implement the storage API");
+		module:log("error", "mod_%s does not support archiving", archive._provided_by or archive.name and "storage_"..archive.name.."(?)" or "<unknown>");
+	else
+		module:log("error", "Attempt to open archive storage returned null driver");
+	end
+	module:log("info", "See https://prosody.im/doc/storage and https://prosody.im/doc/archiving for more information");
+	return false;
 end
 
 local function logging_enabled(room)