addSongsToPlaylist: add all valid entries instead of stopping at first failure

src/helpers.h

@@ -488,32 +488,42 @@ template <typename BufferT> void ShowTag(BufferT &buf, const std::string &tag)
 template <typename SongIterator>
 void addSongsToPlaylist(SongIterator first, SongIterator last, bool play, int position)
 {
+	auto addSongNoError = [&](SongIterator song) -> int {
+		try
+		{
+			return Mpd.AddSong(*song, position);
+		}
+		catch (...)
+		{
+			return -1;
+		}
+	};
+
 	if (last-first >= 1)
 	{
-		int id = Mpd.AddSong(*first, position);
-		if (id > 0)
-		{
-			Mpd.StartCommandsList();
+		int id = addSongNoError(first);
+		while (id < 0) {
+			if (++first == last)
+				return;
+			id = addSongNoError(first);
+		}
+
 		if (position == -1)
 		{
 			++first;
 			for(; first != last; ++first)
-					if (Mpd.AddSong(*first) < 0)
-						break;
+				addSongNoError(first);
 		}
 		else
 		{
 			++position;
 			--last;
 			for (; first != last; --last)
-					if (Mpd.AddSong(*last, position) < 0)
-						break;
+				addSongNoError(last);
 		}
-			Mpd.CommitCommandsList();
 		if (play)
 			Mpd.PlayID(id);
 	}
-	}
 }
 
 bool addSongToPlaylist(const MPD::Song &s, bool play, int position = -1);