command/playlist: eliminate spl_print() calls

src/PlaylistPrint.cxx

@@ -115,46 +115,3 @@ playlist_print_changes_position(Response &r,
 	queue_print_changes_position(r, playlist.queue, version,
 				     start, end);
 }
-
-#ifdef ENABLE_DATABASE
-
-static bool
-PrintSongDetails(Response &r, Partition &partition, const char *uri_utf8)
-{
-	const Database *db = partition.instance.database;
-	if (db == nullptr)
-		return false;
-
-	const LightSong *song;
-	try {
-		song = db->GetSong(uri_utf8);
-	} catch (const std::runtime_error &e) {
-		return false;
-	}
-
-	song_print_info(r, partition, *song);
-	db->ReturnSong(song);
-	return true;
-}
-
-#endif
-
-void
-spl_print(Response &r, Partition &partition,
-	  const char *name_utf8, bool detail)
-{
-#ifndef ENABLE_DATABASE
-	(void)partition;
-	(void)detail;
-#endif
-
-	PlaylistFileContents contents = LoadPlaylistFile(name_utf8);
-
-	for (const auto &uri_utf8 : contents) {
-#ifdef ENABLE_DATABASE
-		if (!detail || !PrintSongDetails(r, partition,
-						 uri_utf8.c_str()))
-#endif
-			r.Format(SONG_FILE "%s\n", uri_utf8.c_str());
-	}
-}

src/PlaylistPrint.hxx

@@ -91,15 +91,4 @@ playlist_print_changes_position(Response &r,
 				uint32_t version,
 				unsigned start, unsigned end);
 
-/**
- * Send the stored playlist to the client.
- *
- * @param client the client which requested the playlist
- * @param name_utf8 the name of the stored playlist in UTF-8 encoding
- * @param detail true if all details should be printed
- */
-void
-spl_print(Response &r, Partition &partition,
-	  const char *name_utf8, bool detail);
-
 #endif

src/command/PlaylistCommands.cxx

@@ -22,9 +22,9 @@
 #include "Request.hxx"
 #include "db/DatabasePlaylist.hxx"
 #include "CommandError.hxx"
-#include "PlaylistPrint.hxx"
 #include "PlaylistSave.hxx"
 #include "PlaylistFile.hxx"
+#include "PlaylistError.hxx"
 #include "db/PlaylistVector.hxx"
 #include "SongLoader.hxx"
 #include "BulkEdit.hxx"
@@ -85,11 +85,10 @@ handle_listplaylist(Client &client, Request args, Response &r)
 	const char *const name = args.front();
 
 	if (playlist_file_print(r, client.partition, SongLoader(client),
-				name, false))
+				 name, false))
 		return CommandResult::OK;
 
-	spl_print(r, client.partition, name, false);
-	return CommandResult::OK;
+	throw PlaylistError::NoSuchList();
 }
 
 CommandResult
@@ -101,8 +100,7 @@ handle_listplaylistinfo(Client &client, Request args, Response &r)
 				name, true))
 		return CommandResult::OK;
 
-	spl_print(r, client.partition, name, true);
-	return CommandResult::OK;
+	throw PlaylistError::NoSuchList();
 }
 
 CommandResult