Add default formatter

config.go

@@ -42,8 +42,9 @@ var allRules = append([]lint.Rule{
 }, defaultRules...)
 
 var allFormatters = []lint.Formatter{
-	&formatter.CLIFormatter{},
-	&formatter.JSONFormatter{},
+	&formatter.CLI{},
+	&formatter.JSON{},
+	&formatter.Default{},
 }
 
 func getFormatters() map[string]lint.Formatter {
@@ -86,6 +87,9 @@ func parseConfig(path string) *lint.Config {
 }
 
 func normalizeConfig(config *lint.Config) {
+	if config.Confidence == 0 {
+		config.Confidence = 0.8
+	}
 	severity := config.Severity
 	if severity != "" {
 		for k, v := range config.Rules {
@@ -108,7 +112,7 @@ func getConfig() *lint.Config {
 
 func getFormatter() lint.Formatter {
 	formatters := getFormatters()
-	formatter := formatters["cli"]
+	formatter := formatters["default"]
 	if formatterName != "" {
 		f, ok := formatters[formatterName]
 		if !ok {

config.toml

@@ -5,8 +5,19 @@ confidence = 0.8
 [rule.package-comments]
 [rule.else]
 [rule.names]
-[rule.argument-limit]
-  arguments = [2]
-[rule.cyclomatic]
-  severity = "error"
-  arguments = [3]
+[rule.var-declaration]
+[rule.unexported-return]
+[rule.time-names]
+[rule.receiver-names]
+[rule.range]
+[rule.increment-decrement]
+[rule.if-return]
+[rule.exported]
+[rule.errors]
+[rule.errorf]
+[rule.error-strings]
+[rule.error-return]
+[rule.dot-imports]
+[rule.context-key-types]
+[rule.context-arguments]
+[rule.blank-imports]

defaults.toml

@@ -0,0 +1,23 @@
+ignore-generated-header = true
+severity = "warning"
+confidence = 0.8
+
+[rule.package-comments]
+[rule.else]
+[rule.names]
+[rule.var-declaration]
+[rule.unexported-return]
+[rule.time-names]
+[rule.receiver-names]
+[rule.range]
+[rule.increment-decrement]
+[rule.if-return]
+[rule.exported]
+[rule.errors]
+[rule.errorf]
+[rule.error-strings]
+[rule.error-return]
+[rule.dot-imports]
+[rule.context-key-types]
+[rule.context-arguments]
+[rule.blank-imports]

formatter/cli_formatter.go

@@ -14,14 +14,14 @@ const (
 	warningEmoji = ""
 )
 
-// CLIFormatter is an implementation of the Formatter interface
+// CLI is an implementation of the Formatter interface
 // which formats the errors to JSON.
-type CLIFormatter struct {
+type CLI struct {
 	Metadata lint.FormatterMetadata
 }
 
 // Name returns the name of the formatter
-func (f *CLIFormatter) Name() string {
+func (f *CLI) Name() string {
 	return "cli"
 }
 
@@ -37,7 +37,7 @@ func formatFailure(failure lint.Failure, severity lint.Severity) []string {
 }
 
 // Format formats the failures gotten from the lint.
-func (f *CLIFormatter) Format(failures <-chan lint.Failure, config lint.RulesConfig) (string, error) {
+func (f *CLI) Format(failures <-chan lint.Failure, config lint.RulesConfig) (string, error) {
 	var result [][]string
 	var totalErrors = 0
 	var total = 0

formatter/default.go

@@ -0,0 +1,26 @@
+package formatter
+
+import (
+	"fmt"
+
+	"github.com/mgechev/revive/lint"
+)
+
+// Default is an implementation of the Formatter interface
+// which formats the errors to JSON.
+type Default struct {
+	Metadata lint.FormatterMetadata
+}
+
+// Name returns the name of the formatter
+func (f *Default) Name() string {
+	return "default"
+}
+
+// Format formats the failures gotten from the lint.
+func (f *Default) Format(failures <-chan lint.Failure, config lint.RulesConfig) (string, error) {
+	for failure := range failures {
+		fmt.Printf("%v%v: %s\n", failure.GetFilename(), failure.Position.Start, failure.Failure)
+	}
+	return "", nil
+}

formatter/json_formatter.go

@@ -6,19 +6,19 @@ import (
 	"github.com/mgechev/revive/lint"
 )
 
-// JSONFormatter is an implementation of the Formatter interface
+// JSON is an implementation of the Formatter interface
 // which formats the errors to JSON.
-type JSONFormatter struct {
+type JSON struct {
 	Metadata lint.FormatterMetadata
 }
 
 // Name returns the name of the formatter
-func (f *JSONFormatter) Name() string {
+func (f *JSON) Name() string {
 	return "json"
 }
 
 // Format formats the failures gotten from the lint.
-func (f *JSONFormatter) Format(failures <-chan lint.Failure, config lint.RulesConfig) (string, error) {
+func (f *JSON) Format(failures <-chan lint.Failure, config lint.RulesConfig) (string, error) {
 	var slice []lint.Failure
 	for failure := range failures {
 		slice = append(slice, failure)

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

rule/error-strings.go

@@ -33,7 +33,7 @@ func (r *ErrorStringsRule) Apply(file *lint.File, arguments lint.Arguments) []li
 
 // Name returns the rule name.
 func (r *ErrorStringsRule) Name() string {
-	return "errorf"
+	return "error-strings"
 }
 
 type lintErrorStrings struct {

rule/exported.go

@@ -39,7 +39,7 @@ func (r *ExportedRule) Apply(file *lint.File, arguments lint.Arguments) []lint.F
 
 // Name returns the rule name.
 func (r *ExportedRule) Name() string {
-	return "imports"
+	return "exported"
 }
 
 type lintExported struct {

rule/var-declarations.go

@@ -32,7 +32,7 @@ func (r *VarDeclarationsRule) Apply(file *lint.File, arguments lint.Arguments) [
 
 // Name returns the rule name.
 func (r *VarDeclarationsRule) Name() string {
-	return "blank-imports"
+	return "var-declaration"
 }
 
 type lintVarDeclarations struct {