216 lines
8.8 KiB
Go
216 lines
8.8 KiB
Go
package engine
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import (
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"gitea.maximumdirect.net/eric/ConfigKit/internal/document"
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)
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// loadRequest keeps source acquisition separate from precedence assembly.
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// The ordinary entry point and grouped entry point share the final lifecycle.
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type loadRequest[T any] struct {
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main loadInput
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underlays []loadGroup
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definition Definition[T]
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sequencePolicy sequencePolicy
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sourceVersionMode sourceVersionMode
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effectiveVersion *VersionRule
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overlay string
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overlayFilesystem *FilesystemContext
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overrides []Override
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ordinary bool
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}
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func (request loadRequest[T]) protectionVersion() *VersionRule {
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if request.effectiveVersion != nil {
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return request.effectiveVersion
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}
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return request.definition.Version
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}
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type loadInput struct {
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source Source
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imports bool
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filesystem *FilesystemContext
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destination Path
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}
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type loadGroup struct{ inputs []loadInput }
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func loadGroupedWithSecretLookup[T any](request loadRequest[T], secrets SecretBinding, lookup secretLookup) (*Loaded[T], error) {
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request.ordinary = false
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var diagnostics []Diagnostic
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policy, policyDiagnostics := compileSequencePolicy(request.definition.sequenceRegistrations)
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request.sequencePolicy = policy
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diagnostics = append(diagnostics, policyDiagnostics...)
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request.definition.sequenceRegistrations = nil
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if normalized, err := normalizeDestination(request.main.destination); err != nil {
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diagnostics = append(diagnostics, invalidDestinationDiagnostic(request.main.destination))
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} else {
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request.main.destination = normalized
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}
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request.effectiveVersion = effectiveSourceVersionRule(request.definition.Version, request.main.destination, request.sourceVersionMode)
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_, mainDiagnostics := selectOptions(request.main.source, []Options[T]{{
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Definition: request.definition, Imports: request.main.imports, Filesystem: request.main.filesystem,
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SourceVersionMode: request.sourceVersionMode,
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}})
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diagnostics = append(diagnostics, mainDiagnostics...)
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for groupIndex := range request.underlays {
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for inputIndex := range request.underlays[groupIndex].inputs {
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input := &request.underlays[groupIndex].inputs[inputIndex]
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if normalized, err := normalizeDestination(input.destination); err != nil {
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diagnostics = append(diagnostics, invalidDestinationDiagnostic(input.destination))
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} else {
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input.destination = normalized
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}
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_, inputDiagnostics := selectOptions(input.source, []Options[T]{{Imports: input.imports, Filesystem: input.filesystem}})
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diagnostics = append(diagnostics, inputDiagnostics...)
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}
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}
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if !validOverlayName(request.overlay) {
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diagnostics = append(diagnostics, optionDiagnostic(CodeOptionsInvalid, "overlay name must contain only ASCII letters, digits, underscore, or hyphen"))
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}
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if activeOverlay(request.overlay) {
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if request.overlayFilesystem == nil {
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diagnostics = append(diagnostics, optionDiagnostic(CodeOptionsInvalid, "selected overlay requires explicit filesystem context"))
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} else {
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diagnostics = append(diagnostics, filesystemOptionDiagnostics(Source{kind: sourceBytes}, request.overlayFilesystem)...)
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}
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}
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if len(diagnostics) != 0 {
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return nil, (&diagnosticAccumulator{diagnostics: canonicalDiagnostics(diagnostics)}).loadError()
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}
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return executeLoadRequest(request, secrets, lookup)
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}
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func assembleLayeredInput[T any](request loadRequest[T], input assembledInput, accounting *importAccounting) (assembledInput, []Diagnostic) {
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groups := make([]*composedDocument, 0, len(request.underlays))
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for index, group := range request.underlays {
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composition, sources, contexts, diagnostics := acquireUnderlayGroupWithVersion(group, index+1, request.protectionVersion(), accounting, input.versionState)
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input.sources = append(input.sources, sources...)
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mergeResourceContexts(&input.contexts, contexts)
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if len(diagnostics) != 0 {
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return input, diagnostics
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}
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if composition != nil {
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groups = append(groups, composition)
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}
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}
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var assembly *assemblyAccumulator
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for _, group := range groups {
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if assembly == nil {
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assembly = newAssemblyAccumulator(group)
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continue
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}
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if diagnostics := assembly.applyOverlay(group.root, group.origins, group.applications, LayerUnderlay); len(diagnostics) != 0 {
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return input, diagnostics
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}
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}
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if input.document != nil {
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mainComposition, diagnostics := compositionForInput(input)
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if len(diagnostics) != 0 {
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return input, diagnostics
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}
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if assembly == nil {
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assembly = newAssemblyAccumulator(mainComposition)
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} else if diagnostics := assembly.applyOverlay(mainComposition.root, mainComposition.origins, mainComposition.applications, LayerBase); len(diagnostics) != 0 {
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return input, diagnostics
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}
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}
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if assembly == nil && (activeOverlay(request.overlay) || len(request.overrides) != 0) {
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composition, _ := compositionForInput(assembledInput{})
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assembly = newAssemblyAccumulator(composition)
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}
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if assembly == nil {
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return input, nil
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}
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assembly.current.inputBytes = accounting.bytes
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assembly.current.inputNodes = accounting.nodes
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if activeOverlay(request.overlay) {
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// The selected overlay context is independent of the main input. This
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// synthetic descriptor creates no source record or input contribution.
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selection := Source{kind: sourceBytes}
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selected := parsedSource{document: &document.Node{Kind: document.Mapping}, source: &SourceInfo{}}
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var diagnostics []Diagnostic
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input.sources, diagnostics = loadSelectedOverlayIntoWithVersion(selection, request.overlayFilesystem, selected, assembly, input.sources, request.overlay, request.protectionVersion(), defaultImportLimits(), input.versionState)
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if len(diagnostics) != 0 {
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return input, diagnostics
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}
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contexts, diagnostic := contextsForAcquiredSources(selection, request.overlayFilesystem, selected.source, input.sources[len(input.sources)-1:])
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if diagnostic != nil {
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return input, []Diagnostic{*diagnostic}
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}
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mergeResourceContexts(&input.contexts, contexts)
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}
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if len(request.overrides) != 0 {
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var diagnostics []Diagnostic
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input.sources, diagnostics = assembly.applyOverrides(input.sources, request.overrides, request.protectionVersion(), defaultImportLimits())
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if len(diagnostics) != 0 {
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return input, diagnostics
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}
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}
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input.composition = assembly.current
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input.document = assembly.current.root
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return input, nil
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}
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func acquireUnderlayGroup(group loadGroup, index int, rule *VersionRule, accounting *importAccounting) (*composedDocument, []SourceInfo, map[string]ResourceContext, []Diagnostic) {
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return acquireUnderlayGroupWithVersion(group, index, rule, accounting, nil)
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}
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func acquireUnderlayGroupWithVersion(group loadGroup, index int, rule *VersionRule, accounting *importAccounting, versionState *sourceVersionState) (*composedDocument, []SourceInfo, map[string]ResourceContext, []Diagnostic) {
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initialBytes, initialNodes := accounting.bytes, accounting.nodes
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visited := make(map[resourceIdentity]importRoute)
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hostToken := &namespaceToken{}
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var scopes []acquisitionScope
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var sources []SourceInfo
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var contexts map[string]ResourceContext
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for _, contribution := range group.inputs {
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options := Options[struct{}]{Imports: contribution.imports, Filesystem: contribution.filesystem, Definition: Definition[struct{}]{Version: rule}}
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acquired, diagnostics := assembleBaseInputTrackedForRole(contribution.source, options, contribution.destination, accounting, visited, hostToken, versionState, sourceVersionContribution)
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for _, source := range acquired.sources {
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source.Layer = LayerUnderlay
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source.UnderlayIndex = index
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sources = append(sources, source)
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}
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mergeResourceContexts(&contexts, acquired.contexts)
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if len(diagnostics) != 0 {
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return nil, sources, contexts, diagnostics
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}
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if acquired.document == nil {
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continue
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}
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if node := fragmentVersionClaim(acquired.document, rule); node != nil {
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location := publicLocation(node.Location)
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return nil, sources, contexts, []Diagnostic{{
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Code: CodeUnderlayVersion, Severity: SeverityError, Path: rule.Path.clone(),
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Message: "underlay inputs cannot contribute to the schema-version path", Primary: &location,
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}}
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}
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scopes = append(scopes, cloneAcquisitionScopes(acquired.acquisition)...)
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}
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var documents []*document.Node
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for _, scope := range scopes {
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for _, contribution := range scope.contributions {
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documents = append(documents, contribution.document)
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}
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}
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if len(documents) == 0 {
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return nil, sources, contexts, nil
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}
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composition, diagnostics := composeDocuments(documents...)
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if len(diagnostics) != 0 {
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return nil, sources, contexts, diagnostics
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}
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composition.inputBytes = accounting.bytes - initialBytes
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composition.inputNodes = accounting.nodes - initialNodes
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composition.acquisition = cloneAcquisitionScopes(scopes)
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for pointer, origin := range composition.origins {
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origin.Layer = LayerUnderlay
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composition.origins[pointer] = origin
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}
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for index := range composition.applications {
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composition.applications[index].layer = LayerUnderlay
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}
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return composition, sources, contexts, nil
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}
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