Fix running single analyzer which isn't a rule bug (#1231)

* Fix running single analyzer which isn't a rule bug

* remove uncessary diff (even if it's proper fmt)

Author: ldemailly

analyzers/analyzerslist.go

@@ -51,7 +51,7 @@ func (al *AnalyzerList) AnalyzersInfo() (map[string]AnalyzerDefinition, map[stri
 type AnalyzerFilter func(string) bool
 
 // NewAnalyzerFilter is a closure that will include/exclude the analyzer ID's based on
-// the supplied boolean value.
+// the supplied boolean value (false means don't remove, true means exclude).
 func NewAnalyzerFilter(action bool, analyzerIDs ...string) AnalyzerFilter {
 	analyzerlist := make(map[string]bool)
 	for _, analyzer := range analyzerIDs {

cmd/gosec/main.go

@@ -224,11 +224,11 @@ func loadConfig(configFile string) (gosec.Config, error) {
 	if *flagEnableAudit {
 		config.SetGlobal(gosec.Audit, "true")
 	}
-	// set global option IncludeRules ,when flag set or global option IncludeRules  is nil
+	// set global option IncludeRules, when flag set or global option IncludeRules  is nil
 	if v, _ := config.GetGlobal(gosec.IncludeRules); *flagRulesInclude != "" || v == "" {
 		config.SetGlobal(gosec.IncludeRules, *flagRulesInclude)
 	}
-	// set global option ExcludeRules ,when flag set or global option IncludeRules  is nil
+	// set global option ExcludeRules, when flag set or global option ExcludeRules  is nil
 	if v, _ := config.GetGlobal(gosec.ExcludeRules); flagRulesExclude.String() != "" || v == "" {
 		config.SetGlobal(gosec.ExcludeRules, flagRulesExclude.String())
 	}
@@ -438,12 +438,13 @@ func main() {
 	}
 
 	ruleList := loadRules(includeRules, excludeRules)
-	if len(ruleList.Rules) == 0 {
-		logger.Fatal("No rules are configured")
-	}
 
 	analyzerList := loadAnalyzers(includeRules, excludeRules)
 
+	if len(ruleList.Rules) == 0 && len(analyzerList.Analyzers) == 0 {
+		logger.Fatal("No rules/analyzers are configured")
+	}
+
 	// Create the analyzer
 	analyzer := gosec.NewAnalyzer(config, *flagScanTests, *flagExcludeGenerated, *flagTrackSuppressions, *flagConcurrency, logger)
 	analyzer.LoadRules(ruleList.RulesInfo())