Add JSON output format for CLI commands

internal/app/validate.go

@@ -6,14 +6,19 @@ import (
 	"io"
 
 	"gitea.maximumdirect.net/eric/distributor/internal/bundle"
+	"gitea.maximumdirect.net/eric/distributor/internal/storage"
 )
 
 type ValidateOptions struct {
-	Path   string
-	Stdout io.Writer
+	Path         string
+	Stdout       io.Writer
+	OutputFormat OutputFormat
 }
 
 func Validate(ctx context.Context, options ValidateOptions) error {
+	if err := ValidateOutputFormat(options.OutputFormat); err != nil {
+		return err
+	}
 	if options.Path == "" {
 		return fmt.Errorf("validate command requires a path")
 	}
@@ -25,8 +30,35 @@ func Validate(ctx context.Context, options ValidateOptions) error {
 	if err != nil {
 		return err
 	}
+	if IsJSONOutput(options.OutputFormat) {
+		return WriteJSONEnvelope(options.Stdout, "validate", true, nil, validateResultFromBundles(bundles), nil)
+	}
 	if options.Stdout != nil {
 		_, err = fmt.Fprintf(options.Stdout, "Validated %d bundle(s)\n", len(bundles))
 	}
 	return err
 }
+
+type validateResult struct {
+	BundleCount int                    `json:"bundle_count"`
+	Bundles     []validateBundleResult `json:"bundles"`
+}
+
+type validateBundleResult struct {
+	Path string `json:"path"`
+	ID   string `json:"id"`
+}
+
+func validateResultFromBundles(bundles []bundle.Bundle) validateResult {
+	result := validateResult{
+		BundleCount: len(bundles),
+		Bundles:     make([]validateBundleResult, 0, len(bundles)),
+	}
+	for _, sourceBundle := range bundles {
+		result.Bundles = append(result.Bundles, validateBundleResult{
+			Path: storage.DisplayPath(sourceBundle.RootRelativePath),
+			ID:   sourceBundle.Manifest.ID,
+		})
+	}
+	return result
+}