Add default formatter

lint/file.go

@@ -92,11 +92,12 @@ func (f *File) isMain() bool {
 	return false
 }
 
-func (f *File) lint(rules []Rule, rulesConfig RulesConfig, failures chan Failure) {
+func (f *File) lint(rules []Rule, config Config, failures chan Failure) {
+	rulesConfig := config.Rules
 	disabledIntervals := f.disabledIntervals(rules)
 	for _, currentRule := range rules {
-		config := rulesConfig[currentRule.Name()]
-		currentFailures := currentRule.Apply(f, config.Arguments)
+		ruleConfig := rulesConfig[currentRule.Name()]
+		currentFailures := currentRule.Apply(f, ruleConfig.Arguments)
 		for idx, failure := range currentFailures {
 			if failure.RuleName == "" {
 				failure.RuleName = currentRule.Name()
@@ -108,7 +109,9 @@ func (f *File) lint(rules []Rule, rulesConfig RulesConfig, failures chan Failure
 		}
 		currentFailures = f.filterFailures(currentFailures, disabledIntervals)
 		for _, failure := range currentFailures {
-			failures <- failure
+			if failure.Confidence >= config.Confidence {
+				failures <- failure
+			}
 		}
 	}
 }

lint/linter.go

@@ -3,7 +3,6 @@ package lint
 import (
 	"bufio"
 	"bytes"
-	"fmt"
 	"go/token"
 )
 
@@ -43,13 +42,11 @@ func isGenerated(src []byte) bool {
 
 // Lint lints a set of files with the specified rule.
 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(),
 		files: map[string]*File{},
 	}
-	var pkgName string
 	for _, filename := range filenames {
 		content, err := l.reader(filename)
 		if err != nil {
@@ -64,17 +61,11 @@ func (l *Linter) Lint(filenames []string, ruleSet []Rule, config Config) (<-chan
 			return nil, err
 		}
 
-		if pkgName == "" {
-			pkgName = file.AST.Name.Name
-		} else if file.AST.Name.Name != pkgName {
-			return nil, fmt.Errorf("%s is in package %s, not %s", filename, file.AST.Name.Name, pkgName)
-		}
-
 		pkg.files[filename] = file
 	}
 
 	go (func() {
-		pkg.lint(ruleSet, rulesConfig, failures)
+		pkg.lint(ruleSet, config, failures)
 	})()
 
 	return failures, nil

lint/package.go

@@ -139,7 +139,7 @@ func receiverType(fn *ast.FuncDecl) string {
 	return "invalid-type"
 }
 
-func (p *Package) lint(rules []Rule, config RulesConfig, failures chan Failure) {
+func (p *Package) lint(rules []Rule, config Config, failures chan Failure) {
 	if len(p.files) == 0 {
 		close(failures)
 		return