Fix bundled file persistence by introducing SerializationMode enum
Closes: #38094
What's the issue?
Opening bundled files like Default Key Bindings
(zed://settings/keymap-default.json) was causing SQLite foreign key
constraint errors. The editor was trying to save state for these
read-only assets just like regular files, but since bundled files don't
have database entries, the foreign key constraint would fail.
The fix
Replaced the boolean serialize_dirty_buffers flag with a type-safe
SerializationMode enum:
```rust
pub enum SerializationMode {
Enabled, // Regular files persist across sessions
Disabled, // Bundled files don't persist
}
```
This prevents serialization at the source: workspace_id() returns None
for disabled editors, serialize() bails early, and should_serialize()
returns false. When opening bundled files, we set the mode to Disabled
from the start, so they're treated as transient views that never
interact with the persistence layer.
Changes
- editor.rs: Added SerializationMode enum and updated serialization
methods to respect it
- items.rs: Guarded should_serialize() to prevent disabled editors from
being serialized
- zed.rs: Set SerializationMode::Disabled in open_bundled_file()
Result
Bundled files open cleanly without SQLite errors and don't persist
across workspace reloads (expected behavior). Regular file persistence
remains unaffected.
Release Notes: Fixed SQLite foreign key constraint errors when opening
bundled files like Default Key Bindings.
---------
Co-authored-by: MrSubidubi <finn@zed.dev>
