101 lines
4.2 KiB
Go
101 lines
4.2 KiB
Go
package engine
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import (
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"slices"
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"strings"
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"gitea.maximumdirect.net/eric/ConfigKit/internal/document"
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)
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func applyOverrides(base *composedDocument, sources []SourceInfo, overrides []Override, rule *VersionRule, limits importLimits) (*composedDocument, []SourceInfo, []Diagnostic) {
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if len(overrides) == 0 {
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return base, cloneSourceInfos(sources), nil
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}
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prepared, allSources, diagnostics := prepareOverrides(base, sources, overrides, rule, limits)
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if len(diagnostics) != 0 {
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return nil, allSources, diagnostics
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}
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result := cloneComposedDocument(base)
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for _, override := range prepared {
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applyPreparedOverride(result, override)
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result.inputBytes += override.bytes
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result.inputNodes += override.nodes
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}
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return result, allSources, nil
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}
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func applyPreparedOverride(result *composedDocument, override preparedOverride) {
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location := document.Location{SourceID: override.source.ID}
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mergeOverlayOrigin(result.origins, Path{}, location, LayerCLI)
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current := result.root
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currentPath := Path{}
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for index, segment := range override.path.segments {
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path := currentPath.Key(segment.key)
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position := documentEntryIndex(current.Mapping, segment.key)
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if index < len(override.path.segments)-1 {
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if position < 0 {
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child := &document.Node{Kind: document.Mapping, Location: location, Mapping: []document.Entry{}}
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current.Mapping = append(current.Mapping, document.Entry{Key: segment.key, KeyLocation: location, ValueLocation: location, Value: child})
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collectOverlayOrigins(result.origins, child, path, LayerCLI)
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current = child
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} else {
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current = current.Mapping[position].Value
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mergeOverlayOrigin(result.origins, path, location, LayerCLI)
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}
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currentPath = path
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continue
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}
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previous := cloneOrigin(result.origins[path.String()])
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var displaced []displacedDefinition
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if position < 0 {
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incoming := document.Clone(override.value)
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current.Mapping = append(current.Mapping, document.Entry{Key: segment.key, KeyLocation: location, ValueLocation: location, Value: incoming})
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collectOverlayOrigins(result.origins, incoming, path, LayerCLI)
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} else {
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existing := current.Mapping[position].Value
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displaced = affectedOverrideOrigins(existing, override.value, result.origins, path)
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if existing.Kind == document.Mapping && override.value.Kind == document.Mapping {
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mergeOverlayOrigin(result.origins, path, location, LayerCLI)
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mergeOverlayMappings(result, existing, override.value, path, LayerCLI, false)
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} else {
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deleteOriginSubtree(result.origins, path)
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current.Mapping[position] = document.Entry{Key: segment.key, KeyLocation: location, ValueLocation: location, Value: document.Clone(override.value)}
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collectOverlayOrigins(result.origins, current.Mapping[position].Value, path, LayerCLI)
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}
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}
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result.overlays = append(result.overlays, overlayRecord{change: Change{
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Path: path.clone(), Origin: overlayOrigin(LayerCLI, location), Previous: previousOrigins(previous),
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}, displaced: displaced})
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result.applications = append(result.applications, historyApplication{
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layer: LayerCLI, path: path.clone(), value: override.value,
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origin: overlayOrigin(LayerCLI, location),
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})
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}
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}
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func affectedOverrideOrigins(existing, incoming *document.Node, origins map[string]Origin, path Path) []displacedDefinition {
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displaced := []displacedDefinition{{path: path.clone(), origin: cloneOrigin(origins[path.String()])}}
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if existing.Kind == document.Mapping && incoming.Kind == document.Mapping {
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for _, entry := range incoming.Mapping {
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position := documentEntryIndex(existing.Mapping, entry.Key)
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if position < 0 {
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continue
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}
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childPath := path.Key(entry.Key)
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childExisting := existing.Mapping[position].Value
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if childExisting.Kind == document.Mapping && entry.Value.Kind == document.Mapping {
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displaced = append(displaced, affectedOverrideOrigins(childExisting, entry.Value, origins, childPath)...)
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} else {
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displaced = append(displaced, displacedOrigins(childExisting, origins, childPath)...)
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}
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}
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} else {
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displaced = displacedOrigins(existing, origins, path)
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}
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slices.SortFunc(displaced, func(left, right displacedDefinition) int {
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return strings.Compare(left.path.String(), right.path.String())
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})
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return displaced
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}
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