ReleaseKit/docs/internal/overview.md

# Package and capability inventory

Public Go contracts are defined in declarations and GoDoc. ReleaseKit supports
two Go facades and a command-line interface:

- The root `releasekit` package is the orchestration facade. `Check` validates
  one local candidate, `Publish` validates and publishes its exact annotated
  source tag, `Build` compiles selected application targets, and `Deliver`
  delivers a tagged note page and any declared assets. `PrepareTaggedCheckout`
  and `PrepareBuildDependencies` provide explicit local CI preparation.
- `buildinfo` is the small runtime facade. `Version` reports the injected
  application version, the main-module version when available, or `dev`.
- `cmd/releasekit` is the executable interface. Its `version`, `check`,
  `publish`, `build`, `deliver`, and `ci-deliver` commands adapt profiles and
  command output to the supported library operations.

See the [CLI contract](../cli.md), [configuration reference](../config.md),
[candidate check guide](../consumers/check.md),
[source publication guide](../consumers/publish.md),
[build guide](../consumers/build.md),
[delivery guide](../consumers/delivery.md), and
[runtime version guide](../consumers/runtime-version.md) for task-oriented use.
Go declarations and GoDoc remain the owners of exact exported contracts.

## Module and dependencies

The module is `gitea.maximumdirect.net/eric/ReleaseKit`, with Go language
version `1.25.0`. `go.mod` requires `golang.org/x/mod` and Goldmark for internal
validation; public facades do not expose either dependency. `go list ./...`
reports these implemented packages:

| Package | Responsibility |
| --- | --- |
| `releasekit` | Public orchestration facade and consumer-owned request/result types. |
| `buildinfo` | Public runtime version accessor. |
| `cmd/releasekit` | Executable entry point, command routing, output, and exit status. |
| `cmd/releasekit/internal/cli` | Command parsing, strict JSON profile loading, configured checks, and private build receipts. |
| `internal/apicheck` | Compiled-export and import-boundary checks run during development. |
| `internal/artifact` | Shared build-target normalization, artifact declarations, filename rules, and checksum-manifest naming. |
| `internal/build` | Candidate-build coordination, selected Go target compilation, version injection, native smoke check, and artifact digests. |
| `internal/candidate` | Stable-version, note, repository-state, candidate capture, and post-validation checks. |
| `internal/delivery` | Tagged-source and release-note checks, managed builds in disposable storage outside the checkout, prebuilt artifact validation, manifest assembly, and hosted delivery coordination. |
| `internal/git` | Git command boundary, committed-tree and blob reads, push-destination resolution, exact ref inspection, tagged checkout preparation, and tag operations, including captured-endpoint verification during recovery. |
| `internal/gitea` | Gitea API transport, hosted release pages, asset inspection, manifests, and uploads. |
| `internal/gotool` | Effective Go configuration discovery, shared native-validation and static-build environments, and network-capable dependency preparation; see [Go command environments](gotool.md). |
| `internal/tempdir` | Disposable system temporary storage outside source worktrees. |
| `internal/process` | Cancellable child-process execution with per-command environment overlays and removals. |
| `internal/preparation` | Coordination for expected-commit tag checkout and Go module dependency preparation. |
| `internal/validation` | Shared Go validation with optional race, full-vet, and static package-compilation target selections, formatting, workspace-file and filesystem-replacement checks, per-blob size limits, and selected Markdown destination and fragment checking; `internal/candidate` retains capture, callback sequencing, and local-state rechecks. |
| `internal/publish` | Publication guards, one validation run, annotated tag creation, push, and recovery state. |
| `internal/runtimeinfo` | Private version lookup used by the runtime facade. |
| `internal/versioncontract` | Shared stable-version rules and linker-symbol identity. |

The `buildinfo` facade depends only on its small runtime implementation. The
root facade forwards to internal implementation packages. The CLI adapter is
owned under `cmd/releasekit/internal`; implementation packages do not import
either public facade. `internal/apicheck` verifies exported type ownership and
dependency direction with `go run ./internal/apicheck`. These constraints are
also recorded in [ADR 0001](../adr/0001-public-facade.md) and the
[architecture policy](../policy/architecture.md).

Candidate checking captures and validates one clean committed source revision
in `internal/candidate`. Its validation bridge calls `internal/validation` for
the default offline Go suite, then runs product-specific checks once. The
candidate package owns post-validation builds and local-state rechecks;
publication owns endpoint guards, tag creation, push, and recovery around that
same candidate validation path. `internal/validation.CandidateTree` reads
committed blobs lazily and resolves local destinations from committed entries;
it does not consult neighboring files or traverse submodule checkouts.
See the [shared validation guide](validation.md) for checker, Go command, and
candidate-file integration mechanics.

## Capability owners and behavioral evidence

The following tests are representative evidence from the current offline suite,
not a separate release matrix:

| Capability | Implementation owner | Existing evidence |
| --- | --- | --- |
| Runtime version lookup and injected application version | `buildinfo`, `internal/runtimeinfo`, `internal/versioncontract`, `internal/build` | `TestVersionInConsumerExecutable`, `TestVersion` |
| Candidate capture, shared validation, public diagnostics, additional checks, and rechecks | `releasekit.Check`, `releasekit.Publish`, `internal/candidate`, `internal/validation`, `cmd/releasekit/internal/cli` | `TestRunUsesOneSuiteWithSelectedRaceSetting`, `TestRunReportsRacePrerequisiteFailureWithoutFallback`, `TestRunExecutesRaceEnabledSuiteOnHost`, `TestRunCompilesTargetsAfterTestAndVetInSelectionOrder`, `TestRunAttributesTargetCompileFailureAndStops`, `TestRunCompilesSourceOnlyAndExecutablePackagesWithoutArtifacts`, `TestCandidateRequestMapsGoValidation`, `TestCandidateRequestPreservesMarkdownObjectSelection`, `TestLoadSettingsReadsGoValidation`, `TestLoadSettingsPreservesMarkdownObjectSelection`, `TestCheckUsesSelectedRaceSuiteBeforeAdditionalChecks`, `TestCheckCapturesCandidateAndCallsAdditionalChecksOnce`, `TestCheckReturnsPublicValidationError`, `TestMarkdownValidationRunsThroughCheckAndPublish`, `TestCheckStopsBeforeProductAndBuildCallbacksWhenMarkdownBoundaryFails`, `TestCheckCommandBindsConfiguredChecksToCapturedCandidate`, `TestPublishCommandPublishesConfiguredCandidate`, `TestCandidateCommandsPresentValidationDiagnosticsOnce`, `TestDeliverPageOnlyCreatesAndReusesRelease` |
| Internal Markdown parsing, committed destinations, fragments, boundary observations, and public selection | `releasekit.Check`, `releasekit.Publish`, `internal/candidate`, `internal/validation`, `cmd/releasekit/internal/cli` | `TestParseMarkdownLinksAndSourceLocations`, `TestParseMarkdownDecodesEntitiesInDestinations`, `TestParseMarkdownHeadingAnchors`, `TestMarkdownCacheKeepsParsedDocumentsPerCandidatePath`, `TestCheckMarkdownLinksResolvesCommittedDestinationsAndFragments`, `TestCheckMarkdownLinksReportsMissingPathsAnchorsAndCycles`, `TestCheckMarkdownLinksUsesResolvedMarkdownIdentity`, `TestCheckMarkdownLinksReportsBoundaryAndSubmoduleObservations`, `TestCheckMarkdownLinksPreservesResolverCauseAndCancellation`, `TestCheckMarkdownLinksPreservesAnchorReadCause`, `TestRunSelectsMarkdownWithCombinedGoChecksAndReportsOutOfScopeLinks`, `TestMarkdownValidationRunsThroughCheckAndPublish`, `TestLoadSettingsPreservesMarkdownObjectSelection`, `TestValidationSpecPreservesMarkdownObjectSelection` |
| Shared Go settings for validation and builds | `internal/gotool`, `internal/process`, `internal/candidate`, `internal/build` | `TestDefaultValidationDoesNotInheritGOFLAGSRunFilter`, `TestNativeAndStaticCommandsUseOwnedBaseline`, `TestPersistentSettingsPreserveCachesAndNativeCTools`, `TestBuildIgnoresAmbientAndPersistentArchitectureTuning` |
| Authoritative endpoint and exact annotated tag publication | `releasekit.Publish`, `internal/publish`, `internal/git` | `TestPublishPushesOnlyTheCapturedAnnotatedTag`, `TestPublishRejectsUnexpectedPushURLBeforeValidation`, `TestPublishComparesExpectedURLWithResolvedInsteadOfDestination`, `TestPublishExpectedPushURLUsesPushURLWhenFetchAndPushDiffer`, `TestCheckIgnoresExpectedPushURL`, `TestResolveUsesPushURLAndQueriesWithoutMutation` |
| Publication partial and uncertain recovery | `internal/publish`, `internal/git` | `TestPublishRejectedPushKeepsLocalTagAndReportsNotPublished`, `TestPublishLostAcknowledgmentConfirmsExactRemoteObject`, `TestPublishLostAcknowledgmentWithChangedEndpointRemainsUnknown`, `TestPublishUnavailableReconciliationRemainsUnknownAndPreservesPushError` |
| Cross-builds, version smoke checks, empty target sets, and partial outputs | `releasekit.Build`, `internal/build`, `buildinfo` | `TestBuildCreatesSelectedTargetsAndInjectsVersion`, `TestBuildWithNoTargetsDoesNotInvokeCompiler`, `TestBuildReturnsPartialArtifactsAfterTargetFailure` |
| Page-only and managed or prebuilt binary delivery | `releasekit.Deliver`, `internal/delivery`, `internal/gitea`, CLI | `TestDeliverPageOnlySkipsBuildAndHostedAssets`, `TestDeliverManagedBuildUploadsArtifactsAndCleansTemporaryOutput`, `TestDeliverBinaryConsumerWithBuildinfoAndSelectedTargets`, `TestDeliverPrebuiltArtifactsRemainCallerOwned`, `TestDeliverManagedBuildFailureCleansTemporaryOutputBeforeHostedWrites`, `TestDeliverManagedBuildCancellationCleansTemporaryOutput`, `TestDeliverBuildsTaggedArtifactsAndReusesAssets`, `TestDeliverRejectsTamperedAssetsAndStaleReceiptBeforeRemoteWrites` |
| Tagged checkout and build dependency preparation | `releasekit.PrepareTaggedCheckout`, `releasekit.PrepareBuildDependencies`, `internal/preparation`, `internal/git`, `internal/gotool` | `TestPrepareTaggedCheckoutFetchesExpectedCommitAndDetaches`, `TestPrepareTaggedCheckoutRejectsWrongCommitBeforeCheckout`, `TestPrepareTaggedCheckoutReportsLocalCheckoutConflict`, `TestPrepareTaggedCheckoutReportsConflictingLocalTag`, `TestPrepareBuildDependenciesPreservesPreparationEnvironment`, `TestPrepareBuildDependenciesPropagatesCommandFailure`, `TestPrepareBuildDependenciesPropagatesCancellation` |
| Page, manifest, asset comparison, and additive retry outcomes | `internal/gitea` | `TestEnsureReleaseCreatesMissingPageFromCommittedNote`, `TestInspectAssetsDetectsSameNameAndSizeWithDifferentBytes`, `TestUploadMissingPartialFailureThenRerunOnlyMissingAssets` |
| CLI profiles and prepared Woodpecker sequences | `cmd/releasekit`, `cmd/releasekit/internal/cli`, `examples/woodpecker/` | `TestLoadSettingsRejectsInvalidProfiles`, `TestWoodpeckerTagDeliveryTemplate`, `TestReleaseKitSourceDeliveryWorkflowFromTaggedCheckout` |

Run the complete suite with `go test ./...`. The public API and import boundary
check is `go run ./internal/apicheck`. Local HTTP and Git fixtures exercise
publication and delivery without real credentials or a hosted service.

## Integration references

The [Gitea integration guide](../integrations/gitea.md) owns the HTTP contract
and hosted response handling. The [Woodpecker examples](../../examples/woodpecker/)
are prepared integrations; their YAML is not active in this repository, and no
live Woodpecker runner, configured secret, or hosted delivery has been used.
A read-only PromptKit and Narratio migration review and projected deletion
estimates are recorded in the [product roadmap](../roadmap/releasekit.md);
actual consumer migrations and measurement of realized savings remain future
adoption work.