Files
zot/pkg/extensions
Catalin-George Hofnar 4170d2adbc refactor(cache): rewrote/refactored cachedb functionality to use interface (#667)
Moved boltdb to a driver implementation for such interface
Added CreateCacheDatabaseDriver in controller
Fixed default directory creation (boltDB will only create the file, not the dir
Added coverage tests
Added example config for boltdb
Re-added caching on subpaths, rewrote CreateCacheDatabaseDriver
Fix tests
Made cacheDriver argument mandatory for NewImageStore, added more validation, added defaults
Moved cache interface to own file, removed useRelPaths from config
Got rid of cache config, refactored
Moved cache to own package and folder
Renamed + removed cache factory to backend, replaced CloudCache to RemoteCache
Moved storage constants back to storage package
moved cache interface and factory to storage package, changed remoteCache defaulting

Signed-off-by: Catalin Hofnar <catalin.hofnar@gmail.com>
2022-11-02 15:53:08 -07:00
..

Adding new extensions

As new requirements come and build time extensions need to be added, there are a few things that you have to make sure are present before commiting :

  • files that should be included in the binary only with a specific extension must contain the following syntax at the beginning of the file :

//go:build sync will be added automatically by the linter, so only the second line is mandatory .

NOTE: the third line in the example should be blank, otherwise the build tag would be just another comment.

//go:build sync
// +build sync

package extensions
...................
  • when adding a new tag, specify the new order in which multiple tags should be used (bottom of this page)

  • for each and every new file that contains functions (functionalities) specific to an extension, one should create a corresponding file that must contain the exact same functions, but no functionalities included. This file must begin with an "anti-tag" (e.g. // +build !sync) which will include this file in binaries that don't include this extension ( in this example, the file won't be used in binaries that include sync extension ). See extension-sync-disabled.go for an example.

  • when a new extension comes out, the developer should also write some blackbox tests, where a binary that contains the new extension should be tested in a real usage scenario. See test/blackbox folder for multiple extensions examples.

  • newly added blackbox tests should have targets in Makefile. You should also add them as Github Workflows, in .github/workflows/ecosystem-tools.yaml

  • with every new extension, you should modify the EXTENSIONS variable in Makefile by adding the new extension. The EXTENSIONS variable represents all extensions and is used in Make targets that require them all (e.g make test).

  • the available extensions that can be used at the moment are: sync, scrub, metrics, search . NOTE: When multiple extensions are used, they should be enlisted in the above presented order.