Fixing lint errors

.golangci.yml

@@ -12,8 +12,6 @@ linters-settings:
           - (github.com/golangci/golangci-lint/pkg/logutils.Log).Warnf
           - (github.com/golangci/golangci-lint/pkg/logutils.Log).Errorf
           - (github.com/golangci/golangci-lint/pkg/logutils.Log).Fatalf
-  golint:
-    min-confidence: 0
   gocyclo:
     min-complexity: 10
   maligned:
@@ -36,6 +34,10 @@ linters:
   - maligned
   - prealloc
   - depguard
+  - wrapcheck # Requires wrapping external Errors to new ones
+  - forbidigo # Restricts using of fmt.Println
+  - goerr113  # Requires rewriting of most of errors to static ones in cmd/usage.go
+  - exhaustivestruct # Reports errors in Cobra structs
 
 issues:
   exclude-rules:

cmd/add.go

@@ -5,7 +5,6 @@ import (
 	"os"
 
 	"github.com/dm3ch/git-profile-manager/profile"
-
 	"github.com/spf13/cobra"
 )
 

cmd/current.go

@@ -34,45 +34,51 @@ func getConfigValue(key string) string {
 	if err != nil {
 		return ""
 	}
+
 	return out[:len(out)-1]
 }
 
-//nolint:gocyclo
+//nolint: gocyclo, gocognit, cyclop, gocritic
 func templateRender(tpl string) string {
 	phStartPos := -1
 	phEndPos := 0
 	keyStartPos := -1
 	keyEndPos := -1
 	result := ""
 
-	for i := 0; i < len(tpl); i++ {
-		if i != 0 && tpl[i] == '{' && tpl[i-1] == '{' {
-			phStartPos = i - 1
+	for index := 0; index < len(tpl); index++ {
+		if index != 0 && tpl[index] == '{' && tpl[index-1] == '{' {
+			phStartPos = index - 1
+
 			continue
 		}
 
-		if phStartPos != -1 && keyStartPos == -1 && tpl[i] != ' ' {
-			keyStartPos = i
+		if phStartPos != -1 && keyStartPos == -1 && tpl[index] != ' ' {
+			keyStartPos = index
 		}
 
-		if keyStartPos != -1 && keyEndPos == -1 && tpl[i] == ' ' {
-			keyEndPos = i
+		if keyStartPos != -1 && keyEndPos == -1 && tpl[index] == ' ' {
+			keyEndPos = index
 		}
 
-		if i != 0 && tpl[i] == '}' && tpl[i-1] == '}' {
+		if index != 0 && tpl[index] == '}' && tpl[index-1] == '}' {
 			if phStartPos != -1 {
 				result += tpl[phEndPos:phStartPos]
+
 				if keyEndPos == -1 {
-					keyEndPos = i - 1
+					keyEndPos = index - 1
 				}
+
 				result += getConfigValue(tpl[keyStartPos:keyEndPos])
-				phEndPos = i + 1
+				phEndPos = index + 1
 				phStartPos = -1
 				keyStartPos = -1
 				keyEndPos = -1
 			}
 		}
 	}
+
 	result += tpl[phEndPos:]
+
 	return result
 }

cmd/helpers.go

@@ -15,22 +15,23 @@ const (
 	profileExtention = "profile"
 )
 
-// Create directory if it doesn't exists
+// Create directory if it doesn't exists.
 func createDirIfNotExist(dir string) error {
 	if _, err := os.Stat(dir); os.IsNotExist(err) {
-		err = os.MkdirAll(dir, 0755)
+		err = os.MkdirAll(dir, 0o755) //nolint:gomnd //Rights used only there so it doesn't make sense to move it to const
+
 		return err
 	}
 
 	return nil
 }
 
-// Get configuration directory relative path
+// Get configuration directory relative path.
 func getConfigDirRelativePath() string {
 	return viper.GetString("configDir")
 }
 
-// Get configuration directory absolute path
+// Get configuration directory absolute path.
 func getConfigDirAbsolutePath() (string, error) {
 	configDir, err := homedir.Expand(getConfigDirRelativePath())
 	if err != nil {
@@ -40,40 +41,45 @@ func getConfigDirAbsolutePath() (string, error) {
 	return configDir, nil
 }
 
-// Prompts string with label
+// Prompts string with label.
 func prompt(label string) string {
 	reader := bufio.NewReader(os.Stdin)
+
 	fmt.Printf("%s: ", label)
+
 	str, err := reader.ReadString('\n')
 	if err != nil {
 		fmt.Println("Prompt failed:")
 		fmt.Println(err)
 		os.Exit(1)
 	}
+
 	return str[:len(str)-1]
 }
 
-// Prompts empty GitUser fields
+// Prompts empty GitUser fields.
 func promptGitUser(user *profile.GitUser) {
 	user.Name = prompt("Name")
 	user.Email = prompt("Email")
 	user.SigningKey = prompt("Signing Key")
 }
 
-// Prompts yes or now answer
+// Prompts yes or now answer.
 func promptYesNo(label string) bool {
 	answer := prompt(label + " [y/N]")
+
 	return (answer == "y" || answer == "Y")
 }
 
-// Get profile file path
+// Get profile file path.
 func getProfilePath(configDir, profileName string) string {
 	return filepath.Join(configDir, profileName+"."+profileExtention)
 }
 
-// Check if file exists
+// Check if file exists.
 func isFileExist(path string) bool {
 	absolutePath, _ := homedir.Expand(path)
 	_, err := os.Stat(absolutePath)
+
 	return !os.IsNotExist(err)
 }

cmd/remove.go

@@ -29,6 +29,7 @@ var removeCmd = &cobra.Command{
 			profileExists := isFileExist(path)
 			if !profileExists {
 				fmt.Printf("Profile %s does not exists\n", profileName)
+
 				return
 			}
 

cmd/root.go

@@ -44,6 +44,7 @@ func Execute() {
 func init() {
 	rootCmd.PersistentFlags().StringP("configDir", "C", defaultConfigDir,
 		fmt.Sprintf("Configuration directory (Could be also set via %s environment variable)", envConfigDir))
+
 	_ = viper.BindPFlag("configDir", rootCmd.PersistentFlags().Lookup("configDir"))
 	_ = viper.BindEnv("configDir", envConfigDir)
 	viper.SetDefault("configDir", defaultConfigDir)

cmd/show.go

@@ -2,7 +2,7 @@ package cmd
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"os"
 
 	"github.com/spf13/cobra"
@@ -37,7 +37,7 @@ var showCmd = &cobra.Command{
 		}
 		defer file.Close()
 
-		buffer, err := ioutil.ReadAll(file)
+		buffer, err := io.ReadAll(file)
 		if err != nil {
 			file.Close()
 			fmt.Printf("Can't read profile %s file:\n", profileName)

cmd/use.go

@@ -109,10 +109,12 @@ func unsetProfile(configType gitconfig.ConfigType, unsetProfilePath bool, key, v
 }
 
 func unsetProfileWrapper(incType includeType, dir string) error {
-	var key, value string
-	var unsetProfilePath bool
-	var err error
-	var configType gitconfig.ConfigType
+	var (
+		key, value       string
+		unsetProfilePath bool
+		err              error
+		configType       gitconfig.ConfigType
+	)
 
 	switch incType {
 	case dirInclude:
@@ -125,18 +127,22 @@ func unsetProfileWrapper(incType includeType, dir string) error {
 		unsetProfilePath = true
 		key = gitIncludePath
 		value, err = gitconfig.Get(configType, gitProfilePath)
+
 		if err != nil || value == "" {
-			return nil
+			return fmt.Errorf("failed to detect profile value during unset")
 		}
+
 		value = value[:len(value)-1]
 	case localInclude:
 		configType = gitconfig.LocalConfig
 		unsetProfilePath = true
 		key = gitIncludePath
 		value, err = gitconfig.Get(configType, gitProfilePath)
+
 		if err != nil || value == "" {
-			return nil
+			return fmt.Errorf("failed to detect profile value during unset")
 		}
+
 		value = value[:len(value)-1]
 	}
 
@@ -160,9 +166,11 @@ func setProfile(configType gitconfig.ConfigType, setProfilePath bool, key, value
 }
 
 func setProfileWrapper(incType includeType, dir, profilePath string) error {
-	var key string
-	var setProfilePath bool
-	var configType gitconfig.ConfigType
+	var (
+		key            string
+		setProfilePath bool
+		configType     gitconfig.ConfigType
+	)
 
 	switch incType {
 	case dirInclude:

gitconfig/gitconfig.go

@@ -16,11 +16,13 @@ const (
 
 func GitExec(command ...string) (string, error) {
 	out, err := exec.Command("git", command...).CombinedOutput()
+
 	return string(out), err
 }
 
 func Exec(configType ConfigType, command ...string) (string, error) {
 	var args []string
+
 	switch configType {
 	case LocalConfig:
 		args = append([]string{"config", "--local"}, command...)
@@ -49,6 +51,7 @@ func UnsetAll(configType ConfigType, key, value string) (string, error) {
 	if value != "" {
 		return Exec(configType, "--unset-all", key, value)
 	}
+
 	return Exec(configType, "--unset-all", key)
 }
 

version/version.go

@@ -1,9 +1,8 @@
 package version
 
+//nolint:gochecknoglobals // These variables should be set by the linker during build.
 var (
-	// These variables should be set by the linker during build
-
-	VersionNumber     = "Unknown" //nolint:gochecknoglobals
-	VersionCommitHash = "Unknown" //nolint:gochecknoglobals
-	VersionBuildDate  = "Unknown" //nolint:gochecknoglobals
+	VersionNumber     = "Unknown"
+	VersionCommitHash = "Unknown"
+	VersionBuildDate  = "Unknown"
 )