feat(overlays): add spec-remove-subpackage overlay

[reubeno]

Adds a new overlay type that removes every section in a spec belonging to a given sub-package (its %package preamble plus any %description, %files, %post, %postun, etc. sections targeting it). This avoids having to author one spec-remove-section overlay per section just to drop a single sub-package, and removes the risk of missing scriptlets that upstream may add later.

The overlay requires the 'package' field and fails if the spec contains no sections matching the indicated sub-package.

Example:

[[components.mypackage.overlays]]
type = "spec-remove-subpackage"
package = "gui"
description = "Drop the gui sub-package; not shipped in Azure Linux"

Resolves #22

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Adds a new spec-remove-subpackage overlay type to remove an entire RPM sub-package from a spec (its %package preamble plus any sub-package-scoped sections), along with docs, schema updates, and test coverage to validate the behavior.

Changes:

• Extend overlay type enums in the JSON schema and generated schema snapshots to include spec-remove-subpackage.
• Implement Spec.RemoveSubpackage() and refactor section-removal logic to use shared range-collection helpers.
• Wire the new overlay into config validation and overlay application, and add unit tests + documentation.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
schemas/azldev.schema.json	Adds spec-remove-subpackage to the overlay type enum in the schema.
scenario/snapshots/TestSnapshots_config_generate-schema_stdout_1.snap	Updates generated-schema snapshot to include the new overlay type.
scenario/snapshots/TestSnapshotsContainer_config_generate-schema_stdout_1.snap	Updates container snapshot to include the new overlay type.
internal/rpm/spec/edit.go	Refactors removal logic and adds RemoveSubpackage() + shared section range helpers.
internal/rpm/spec/edit_test.go	Adds spec-level tests covering sub-package removal and error cases.
internal/projectconfig/overlay.go	Adds new overlay type constant, schema enum, validation, and ModifiesSpec inclusion.
internal/projectconfig/overlay_test.go	Adds validation tests and updates ModifiesSpec test list.
internal/app/azldev/core/sources/overlays.go	Applies the new overlay type by calling RemoveSubpackage().
internal/app/azldev/core/sources/overlays_test.go	Adds integration-style tests for applying the overlay to spec contents.
docs/user/reference/config/overlays.md	Documents the new overlay type, usage, and its %if/%endif limitation.

[Tonisal-byte]

Looks good to me

[liunan-ms]

Looks good to me. Verified by running azldev comp render -p <package-name> with a spec-remove-subpackage overlay

[Copilot]

Pull request overview

Copilot reviewed 10 out of 10 changed files in this pull request and generated no new comments.