Add support for tekton.dev/v1 Task and Pipeline types

[vdemeester]

Changes

Adds support for validating and linting tekton.dev/v1 resources, while keeping full backward compatibility with tekton.dev/v1beta1.

Fixes #10

catlin was hard-wired to v1beta1. This PR:

• pkg/parser: registers both the v1 and v1beta1 schemes, accepts both API group versions, and normalizes parsed resources to v1 types. Since the fields catlin inspects (Step.Image/Env/EnvFrom/Script, Task.Spec.Steps) are identical across versions, v1beta1 resources are decoded straight into v1 types.
• pkg/validator: task validator now operates on v1.Task / v1.Step.
• pkg/linter: script linter now operates on v1.Task / v1.Step.

ClusterTask was already removed upstream and from catlin, so no work was needed there. The dependency is already on tektoncd/pipeline v1.4.0, which ships the v1 API, so no further dependency bumps were required.

Adds v1 fixtures and tests for the parser, validator, linter and the validate command; existing v1beta1 tests are retained to prove backward compatibility.

Submitter Checklist

As the author of this PR, please check off the items in this checklist:

• Has Docs if any changes are user facing, including updates to minimum requirements e.g. Kubernetes version bumps
• Has Tests included if any functionality added or changed
• Follows the commit message standard
• Meets the Tekton contributor standards (including functionality, content, code)
• Has a kind label. You can add one by adding a comment on this PR that contains /kind <type>. Valid types are bug, cleanup, design, documentation, feature, flake, misc, question, tep
• Release notes block below has been updated with any user facing changes (API changes, bug fixes, changes requiring upgrade notices or deprecation warnings)
• Release notes contains the string "action required" if the change requires additional action from users switching to the new release

Release Notes

Add support for validating and linting `tekton.dev/v1` Task and Pipeline resources.

[Copilot]

Pull request overview

Adds tekton.dev/v1 support across parsing, validation, and linting while preserving existing tekton.dev/v1beta1 behavior by registering both schemes and normalizing typed decoding to v1 objects.

Changes:

• Register both Tekton v1 and v1beta1 schemes and accept either GVK during parsing; normalize typed conversions to v1 Task/Pipeline.
• Update task validation and script linting to operate on v1.Task / v1.Step.
• Add v1 fixtures/tests for validator, linter, and the validate command testdata.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
pkg/parser/parser.go	Registers both schemes and treats both v1/v1beta1 as Tekton resources while normalizing typed objects to v1.
pkg/validator/task_validator.go	Switches task validation to tekton.dev/v1 Task/Step types.
pkg/validator/task_validator_test.go	Adds tekton.dev/v1 Task validation test coverage alongside existing v1beta1 tests.
pkg/linter/script.go	Switches script linter to tekton.dev/v1 Task/Step types.
pkg/linter/script_test.go	Adds tekton.dev/v1 script-lint fixture/test.
pkg/cmd/validate/validate_test.go	Extends validate command tests to include a tekton.dev/v1 task path.
pkg/cmd/validate/testdata/task/v1-hello/0.1/v1-hello.yaml	Adds a minimal tekton.dev/v1 Task fixture for validate command tests.

Comments suppressed due to low confidence (1)

pkg/linter/script.go:100

• validateScript slices s.Script with fixed indexes (e.g. s.Script[0:2], s.Script[0:14]) without checking length, which can panic for short scripts such as "#!/bin/sh\n...". Use strings.HasPrefix instead of slicing to make this safe.

	// use /bin/sh by default if no shbang
	if s.Script[0:2] != "#!" {
		s.Script = "#!/usr/bin/env sh\n" + s.Script
	} else { // using a shbang, check if we have /usr/bin/env
		if s.Script[0:14] != "#!/usr/bin/env" {
			result.Warn("step: %s is not using #!/usr/bin/env ", taskName)
		}
	}

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[chmouel]

/lgtm

[chmouel]

/approve

[divyansh42]

/lgtm

[tekton-robot]

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