### What?
This PR aims to add reindexing capabilities to `plugin-search` to allow
users to reindex entire searchable collections on demand.
### Why?
As it stands, end users must either perform document reindexing manually
one-by-one or via bulk operations. Both of these approaches are
undesirable because they result in new versions being published on
existing documents. Consider the case when `plugin-search` is only added
_after_ the project has started and documents have been added to
existing collections. It would be nice if users could simply click a
button, choose the searchable collections to reindex, and have the
custom endpoint handle the rest.
### How?
This PR adds on to the existing plugin configuration, creating a custom
endpoint and a custom `beforeListTable` component in the form of a popup
button. Upon clicking the button, a dropdown/popup is opened with
options to select which collection to reindex, as well as a useful `All
Collections` option to run reindexing on all configured search
collections. It also adds a `reindexBatchSize` option in the config to
allow users to specify in what quantity to batch documents to sync with
search.
Big shoutout to @paulpopus & @r1tsuu for the triple-A level support on
this one!
Fixes#8902
See it in action:
https://github.com/user-attachments/assets/ee8dd68c-ea89-49cd-adc3-151973eea28b
Notes:
- Traditionally these kinds of long-running tasks would be better suited
for a job. However, given how many users enjoy deploying to serverless
environments, it would be problematic to offer this feature exclusive to
jobs queues. I thought a significant amount about this and decided it
would be best to ship the feature as-is with the intention of creating
an opt-in method to use job queues in the future if/when this gets
merged.
- In my testing, the collection description somehow started to appear in
the document views after the on-demand RSC merge. I haven't reproduced
this, but this PR has an example of that problem. Super strange.
---------
Co-authored-by: Sasha <64744993+r1tsuu@users.noreply.github.com>
Co-authored-by: Paul Popus <paul@nouance.io>
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