Improvements

lint/linter.go

@@ -42,7 +42,8 @@ func isGenerated(src []byte) bool {
 }
 
 // Lint lints a set of files with the specified rule.
-func (l *Linter) Lint(filenames []string, ruleSet []Rule, rulesConfig RulesConfig) (<-chan Failure, error) {
+func (l *Linter) Lint(filenames []string, ruleSet []Rule, config Config) (<-chan Failure, error) {
+	rulesConfig := config.Rules
 	failures := make(chan Failure)
 	pkg := &Package{
 		fset:  token.NewFileSet(),
@@ -54,7 +55,7 @@ func (l *Linter) Lint(filenames []string, ruleSet []Rule, rulesConfig RulesConfi
 		if err != nil {
 			return nil, err
 		}
-		if isGenerated(content) {
+		if isGenerated(content) && !config.IgnoreGeneratedHeader {
 			continue
 		}
 

lint/package.go

@@ -140,6 +140,10 @@ func receiverType(fn *ast.FuncDecl) string {
 }
 
 func (p *Package) lint(rules []Rule, config RulesConfig, failures chan Failure) {
+	if len(p.files) == 0 {
+		close(failures)
+		return
+	}
 	p.typeCheck()
 	p.scanSortable()
 	var wg sync.WaitGroup

lint/rule.go

@@ -60,9 +60,10 @@ type RulesConfig = map[string]RuleConfig
 
 // Config defines the config of the linter.
 type Config struct {
-	Confidence float64
-	Severity   Severity
-	Rules      RulesConfig `toml:"rule"`
+	IgnoreGeneratedHeader bool `toml:"ignore-generated-header"`
+	Confidence            float64
+	Severity              Severity
+	Rules                 RulesConfig `toml:"rule"`
 }
 
 // Rule defines an abstract rule interaface