MPD stopped building since fmt 11.1.0; see
<https://github.com/fmtlib/fmt/issues/4304>. The first commit
fixing this was 9db7144, followed by 5de0909 (both on the
unstable branch).
This commit removes what the author believes to be the remaining
uses in the MPD codebase.
- added is set to current time, if a new song is added to the database.
- GetAdded falls back to mtime.
Code for proxy plugin is missing, this needs a patch for libmpdclient.
closes#378
Fixes hide_playlist_targets not working after server restart
Currently, `hide_playlists_targets` works by skipping songs with
`in_playlist` value set to true in
[`Directory::Walk`](a57bcd0238/src/db/plugins/simple/Directory.cxx (L237)). But
`in_playlist` is not stored and only updated in
[`UpdateWalk::PurgeDanglingFromPlaylists`](a57bcd0238/src/db/update/Playlist.cxx (L139)),
which will only be executed while updating DB.
This causes the problem that playlist target songs are correctly
hidden after database update, but will remain visible after mpd server
restarted. This pr solves the problem by storing `in_playlist` value
of songs into the `SimpleDatabase` file.
This attribute is not a URI; it is just the filename without its
parent directory path. To avoid confusion, let's rename it to
"filename", leaving the struct without a "uri" attribute.
No longer allocate it as a "VarSize". This used to be a clever trick
to save memory 10 years ago, but these days, keeping the code
maintainable seems more important than saving a few kilobytes of
memory.
Since we switched from autotools to Meson in commit
94592c1406, we don't need to include
`config.h` early to properly enable large file support. Meson passes
the required macros on the compiler command line instead of defining
them in `config.h`.
This means we can include `config.h` at any time, whenever we want to
check its macros, and there are no ordering constraints.
From now on, struct Song will be used by the database only, and
DetachedSong will be used by everybody else. DetachedSong is easier
to use, but Song has lower overhead.
