OPA v1.2.0

[johanfylling]

This release contains a mix of features, performance improvements, and bugfixes.

Parameterized Rego Tests (#2176)

Rego tests now support parameterization, allowing a single test rule to include multiple, hierarchical, named test cases.
This feature is useful for data-driven testing, where a single test rule can be used for multiple test cases with different inputs and expected outputs.

package example_test

test_concat[note] if {
	some note, tc in {
		"empty + empty": {
			"a": [],
			"b": [],
			"exp": [],
		},
		"empty + filled": {
			"a": [],
			"b": [1, 2],
			"exp": [1, 2],
		},
		"filled + filled": {
			"a": [1, 2],
			"b": [3, 4],
			"exp": [1, 2, 3], # Faulty expectation, this test case will fail
		},
	}

	act := array.concat(tc.a, tc.b)
	act == tc.exp
}

$ opa test example_test.rego
example_test.rego:
data.example_test.test_concat: FAIL (263.375µs)
  empty + empty: PASS
  empty + filled: PASS
  filled + filled: FAIL
--------------------------------------------------------------------------------
FAIL: 1/1

See the documentation for more information.

Authored by @johanfylling, reported by @anderseknert

Performance Improvements

• perf: Add ref.CopyNonGround (#7350) authored by @anderseknert
• perf: opa fmt 3x faster formatting (#7341) authored by @anderseknert
• perf: Cost of indexing greatly reduced (#7370) authored by @anderseknert
• perf: Eval optimizations (#7367) authored by @anderseknert
• perf: Intern annotation terms (#7365) authored by @anderseknert
• perf: Slightly more efficient policy scanning (#7368) authored by @anderseknert
• perf: Switch to a faster xxhash package (7362) authored by @Juneezee
• perf: Use GetByValue to avoid boxing to interface{} (#7372) authored by @anderseknert
• perf: Various small improvements (#7357) authored by @anderseknert
• perf: Improve storage lookup performance (#7336) authored by @anderseknert
• perf: optimize iteration (#7327) authored by @anderseknert

Topdown and Rego

• rego+topdown: Allow providing custom base cache (#7329) authored by @anderseknert

Runtime, Tooling, SDK

• ast: Add missing BuildAnnotationSet to ast v0 (#7347) authored by @anderseknert
• ast: Eliminate allocation in Value.Find, and other improvements (#7319) authored by @anderseknert
• ast: Use byte for RuleKind and DocKind (#7332) authored by @anderseknert
• ast.InterfaceToValue: add test case for []byte (#7379) authored by @dennygursky
• ast: support []string and ast.Value in ast.InterfaceToValue (#7306) authored by @regeda
• bundle: Fixing issue where --v0-compatible isn't respected for custom bundles (#7338) authored by @johanfylling
• cmd: Handle failing tests in opa test --bench (#7205) authored by @anderseknert
• cmd: Add decision ID to opa exec output (#7373) authored by @anderseknert
• oracle: Make oracle public under v1/ast/oracle (#7265) authored by @anderseknert
• oracle: Allow passing own compiler to oracle (#7354) authored by @anderseknert
• plugins/discovery: Enable tracing for discovery plugin (#7299) authored by @mjungsbluth
• plugins/rest: Do not attach authorization header in bearerAuthPlugin if response is a redirect (#7308) authored by @carabasdaniel
• server+distributedtracing: Add Additional Resource Attributes for OpenTelemetry (#7322) authored by @briankahoot reported by @briankahoot
• util: Add util.HasherMap (#7363) authored by @anderseknert

Docs, Website, Ecosystem

• docs: Add support link to README (#7359) (authored by @anderseknert)
• docs: Update example bundle to be v1 compatible (#7342) authored by @ashutosh-narkar
• docs: Add note about v1.0 addr behaviour (#7360) authored by @charlieegan3 reported by @ali-jalaal
• docs: Update homepage examples to drop v1 import (#7391) authored by @charlieegan3
• docs: Updating --v1-compatible mentions outside the v1 upgrade guide and v0 compatibility docs (#7337) authored by @johanfylling
• docs: Fixed invalid links to examples (#7326) authored by @JonathanDeLaCruzEncora
• MAINTAINERS: Add Anders and Charlie as maintainers (#7318) authored by @charlieegan3

Miscellaneous

• build+test: Add make test-short task (#7364) (authored by @anderseknert)
• build: Add gocritic linter (#7377) authored by @anderseknert
• build: Add nilness linter from govet (#7335) authored by @anderseknert
• build: Add perfsprint linter (#7334) authored by @anderseknert
• ci: Tagging release binaries with build version (#7395, #7397, #7400) authored by @johanfylling
• test: fix race in TestIntraQueryCache_ClientError and TestInterQueryCache_ClientError (#7280) authored by @Juneezee
• misc: Use Go 1.22+ int ranges (#7328) authored by @anderseknert
• Dependency updates; notably:
  • build: bump go from 1.23.5 to 1.24.0
  • build(deps): bump github.com/agnivade/levenshtein from 1.2.0 to 1.2.1
  • build(deps): bump github.com/containerd/containerd from 1.7.25 to 1.7.26
  • build(deps): bump github.com/google/go-cmp from 0.6.0 to 0.7.0
  • build(deps): bump github.com/prometheus/client_golang
  • build(deps): bump github.com/spf13/cobra from 1.8.1 to 1.9.1
  • build(deps): bump github.com/spf13/pflag from 1.0.5 to 1.0.6
  • build(deps): bump golang.org/x/net from 0.34.0 to 0.35.0
  • build(deps): bump golang.org/x/time from 0.9.0 to 0.10.0
  • build(deps): bump ossf/scorecard-action from 2.4.0 to 2.4.1
  • Bump golangci-lint from v1.60.1 to 1.64.5