🎁 Copy/Delete filters

[cardil]

Changes

• 🎁 Adds copy from upstream and delete from midstream filters

/kind enhancement

[openshift-ci]

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[Copilot]

Pull Request Overview

This PR introduces configurable copy-from-midstream and delete-from-upstream filters to replace the hard-coded GitHub workflows removal, and integrates these filters into the Git checkout and sync operations.

• Add files.Filters API for include/exclude glob patterns with matching and deletion support
• Update git.Checkout.OntoWorkspace to take and apply Filters when copying files
• Replace removeGithubWorkflows with removeUnwantedUpstreamFiles driven by the new delete filters

Reviewed Changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
pkg/files/filters.go	New Filters and Matcher types with glob-based include/exclude
pkg/files/filters_test.go	Unit tests for the Matcher coverage
pkg/files/delete_by_filters.go	DeleteFiles implementation using filters
pkg/files/delete_by_filters_test.go	Tests for deleting files based on filters
pkg/git/checkout.go	Updated OntoWorkspace to accept Filters and filter file tree
pkg/git/checkout_test.go	End-to-end test for checkout plus filtering
pkg/sync/remove_unwanted_upstream_files.go	Add step to delete unwanted upstream files based on filters
pkg/sync/remove_github_workflows.go	Removed legacy workflows-only removal
pkg/sync/fork_files.go	Updated sync steps to use new copy/delete filters
pkg/config/structure.go & defaults.go	Replace workflow glob with Filters for copy/delete config
pkg/config/git/checkout.go	Change Checkout interface to include filter parameter
go.mod	Add github.com/gobwas/glob dependency

Comments suppressed due to low confidence (3)

pkg/git/checkout.go:90

• There are no unit tests covering the new filtering logic in OntoWorkspace/applyTree; consider adding tests to verify that files are correctly included or excluded during checkout.

func (o onGoingCheckout) OntoWorkspace(filters files.Filters) error {

pkg/sync/remove_unwanted_upstream_files.go:7

• [nitpick] Publicly visible methods like removeUnwantedUpstreamFiles lack documentation comments; please add a brief doc comment explaining its behavior and parameters.

func (o Operation) removeUnwantedUpstreamFiles() error {

pkg/config/git/checkout.go:9

• [nitpick] Changing the Checkout interface to require a Filters parameter is a breaking API change; consider versioning this change or providing an overload to preserve backward compatibility.

OntoWorkspace(filters files.Filters) error