Add custom scan error type

aws/scanner.go

@@ -2,7 +2,6 @@ package aws
 
 import (
 	"context"
-	"errors"
 	"fmt"
 	"sync"
 
@@ -87,7 +86,7 @@ func (s *AWSScanner) Scan(ctx context.Context) (*scan.ScanResults, error) {
 		Repositories: repositories,
 	}
 
-	return scanResults, errors.Join(scanErrors...)
+	return scanResults, &scan.ScanError{Errs: scanErrors}
 }
 
 func scanRegion(

scan/scanner.go

@@ -2,6 +2,7 @@ package scan
 
 import (
 	"context"
+	"errors"
 	"time"
 )
 
@@ -39,3 +40,17 @@ type Repository struct {
 type ScanResults struct {
 	Repositories []Repository
 }
+
+// ScanError is an error type that represents a collection of errors that
+// occurred during the scanning process.
+type ScanError struct {
+	Errs []error
+}
+
+func (e *ScanError) Error() string {
+	return errors.Join(e.Errs...).Error()
+}
+
+func (e *ScanError) Unwrap() []error {
+	return e.Errs
+}