Add local source publication

internal/publish/output.go

@@ -0,0 +1,54 @@
+package publish
+
+import (
+	"fmt"
+
+	"gitea.maximumdirect.net/eric/distributor/internal/state"
+	"gitea.maximumdirect.net/eric/distributor/internal/storage"
+)
+
+func PlanSourceOutputs(req Request) ([]Output, error) {
+	if !req.Publish.Source {
+		return nil, nil
+	}
+	outputs := make([]Output, 0, len(req.SourceBundle.Manifest.Files))
+	seen := make(map[string]struct{}, len(req.SourceBundle.Manifest.Files))
+	for _, file := range req.SourceBundle.Manifest.Files {
+		if _, exists := seen[file.Path]; exists {
+			return nil, fmt.Errorf("destination output path collision: %s", file.Path)
+		}
+		seen[file.Path] = struct{}{}
+		if err := storage.ValidatePath(file.Path); err != nil {
+			return nil, fmt.Errorf("destination output path %q: %w", file.Path, err)
+		}
+		outputs = append(outputs, Output{
+			SourcePath:      file.Path,
+			DestinationPath: file.Path,
+			SHA256:          file.SHA256,
+			Size:            file.Size,
+		})
+	}
+	return outputs, nil
+}
+
+func stateOutputs(outputs []Output) []state.OutputFile {
+	files := make([]state.OutputFile, 0, len(outputs))
+	for _, output := range outputs {
+		files = append(files, state.OutputFile{
+			Path:       output.DestinationPath,
+			Kind:       state.OutputKindSource,
+			SourcePath: output.SourcePath,
+			SHA256:     output.SHA256,
+			Size:       output.Size,
+		})
+	}
+	return files
+}
+
+func managedOutputPaths(outputs []Output) []string {
+	paths := make([]string, 0, len(outputs))
+	for _, output := range outputs {
+		paths = append(paths, output.DestinationPath)
+	}
+	return paths
+}