Databases can change either as part of an upgrade or through adding and
removing entries. We can save a bit of memory by removing unallocated
entries during startup.
Implements #47: Automatic database defragment
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
And perform an upgrade when reading back in. After track tags are read,
we can save the database in the new format and remove the old tags.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
And propegate these through the alloc steps to create an album with the
correct artist and genre tags set.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
The dbe_index of a given database item might change in the future, so we
can't rely on it everywhere. Let's just use it for saving and loading
files, with the expectation that changes will happen sometime after
startup.
Implements #69: Reduce use of dbe_index in Ocarina code
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
Albums tend to have a single genre for all tracks, so it makes more
sense for an album to point to genre information.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
This is called to check if any string in an album's token list is
prefixed by the given string.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
It doesn't make sense to have a subdirectory with a single file. Let's
move it back to core/
Implements #45: Move database into core/
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
This is needed so the user can manually set album artwork in the cases
where either we don't fetch the right image or no image is found.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
We now have an interface for controlling everything through struct
db_entry, so let's just have the database store a db_entry directly.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
For allocating new database items from a given key. Tracks do not need
this function since we have special handling for creation and insertion.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
I also take the chance to modify this function slightly. Now, if a
matching item could not be found a new item will be allocated.
I added the new function db_get() if callers just want to get an item
without allocating.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
The album_db should really be controlled from within the Album tag, so
this patch adds functions to find or create Album tags to the tags
namespace.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
Also make it inherit from the GenericTag base class. Also also, add a
unit test specific to Album tags. Finally, I remove the corresponding
section of the DESIGN file since it is no longer needed.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
Anna Schumaker
Anna Schumaker