Removed three prompts:
1. The "really edit?" prompt. If you don't want to edit, you can just not make
any changes.
2. The "done?" loop. This seems unnecessary; we'll confirm afterward anyway.
3. The YAML checker. This removal could indeed make things inconvenient, since
your changes get thrown away if you make a YAML mistake. For the moment,
simplicity is taking priority.
Our built-in "diff"-like functionality is pretty good because it's aware of
beets' data structures and types. This makes it more legible, in my opinion,
than an ordinary textual diff. So for now, I'm making this the only option (in
the spirit of making the plugin as straightforward as humanly possible).
* Add tests for executing the command with album queries (-a), testing the edit
of album and albumartist fields.
* Revise invalid and malformed yaml tests so they return a failure instead of
an error.
* Modify existing tests in order to explicitely check for differences (or lack
of) in the items fields, with the intention to ensure that no unintended changes
slip through.
* Added tests for modifying a single item from a list of items, and for editing
the album field of the items (stub for discussing whether the actual album
should be updated, etc).
* Add tests for the edit plugin, including a helper for bypassing the manual
yaml editing. Tests are focused on "black-box" functionality, running the
command and making assertions on the changes made to the library.
* Delete NamedTemporaryFiles once they are not needed on several functions
(change_objs(), vimdiff(), html()).
* Fix use of reserved word "id" on same_format().
* Colorize "really modify" prompt with action_default.
The idea is that it is so common to check whether we need to write tags (or
move files), and we're constantly re-implementing the same logic everywhere.
It's not even the prettiest logic, as it commingles the importer settings with
general settings. So it's important that we encapsulate the decision so we can
make it better in the future.
