* Support elastic search for code search
* Finished elastic search implementation and add some tests
* Enable test on drone and added docs
* Add new fields to elastic search
* Fix bug
* remove unused changes
* Use indexer alias to keep the gitea indexer version
* Improve codes
* Some code improvements
* The real indexer name changed to xxx.v1
Co-authored-by: zeripath <art27@cantab.net>
Move langauge detection to separate module to be more reusable
Add option to disable vendored file exclusion from file search
Allways show all language stats for search
* Wrap the code indexer
In order to prevent a data race in the code indexer it must be wrapped
with a holder otherwise it is possible to Search/Index on an
incompletely initialised indexer, and search will fail with a nil
pointer until the repository indexer is initialised.
Further a completely initialised repository indexer should not be closed
until Termination otherwise actions in Hammer/Shutdown phases could
block or be lost.
Finally, there is a complex dance of shutdown etiquette should the index
initialisation fail. This PR restores that.
* Always return err if closed whilst waiting
Co-authored-by: techknowlogick <matti@mdranta.net>
