only the pretty formatter should skip outputing (#80)

Author: SUSTAPLE117

analyze/analyze.go

@@ -282,11 +282,6 @@ func (a *Analyzer) finalizeAnalysis(ctx context.Context, inventory *scanner.Inve
 		return err
 	}
 
-	if len(report.Findings) == 0 {
-		log.Info().Msg("No results returned by analysis")
-		return nil
-	}
-
 	err = a.Formatter.Format(ctx, report, inventory.Packages)
 	if err != nil {
 		return err

formatters/pretty/pretty.go

@@ -3,6 +3,7 @@ package pretty
 import (
 	"context"
 	"fmt"
+	"github.com/rs/zerolog/log"
 	"io"
 	"os"
 	"sort"
@@ -19,6 +20,11 @@ func (f *Format) Format(ctx context.Context, report *opa.FindingsResult, package
 	failures := map[string]int{}
 	findings := map[string][]opa.Finding{}
 
+	if len(report.Findings) == 0 {
+		log.Info().Msg("No results returned by analysis")
+		return nil
+	}
+
 	for _, finding := range report.Findings {
 		failures[finding.RuleId]++
 		findings[finding.RuleId] = append(findings[finding.RuleId], finding)