chore: use gofumpt for code formatting

internal/openvpn/auth.go

@@ -23,7 +23,7 @@ func writeIfDifferent(path, content string, puid, pgid int) (err error) {
 		return fmt.Errorf("obtaining file information: %w", err)
 	}
 
-	const perm = os.FileMode(0400)
+	const perm = os.FileMode(0o400)
 	var writeData, setChown bool
 	if os.IsNotExist(err) {
 		writeData = true

internal/openvpn/config.go

@@ -6,7 +6,7 @@ import (
 )
 
 func (c *Configurator) WriteConfig(lines []string) error {
-	const permission = 0644
+	const permission = 0o644
 	file, err := os.OpenFile(c.configPath, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, permission)
 	if err != nil {
 		return err

internal/openvpn/extract/data.go

@@ -14,7 +14,8 @@ var (
 
 // Data extracts the lines and connection from the OpenVPN configuration file.
 func (e *Extractor) Data(filepath string) (lines []string,
-	connection models.Connection, err error) {
+	connection models.Connection, err error,
+) {
 	lines, err = readCustomConfigLines(filepath)
 	if err != nil {
 		return nil, connection, fmt.Errorf("reading configuration file: %w", err)

internal/openvpn/extract/extract.go

@@ -11,12 +11,11 @@ import (
 	"github.com/qdm12/gluetun/internal/models"
 )
 
-var (
-	errRemoteLineNotFound = errors.New("remote line not found")
-)
+var errRemoteLineNotFound = errors.New("remote line not found")
 
 func extractDataFromLines(lines []string) (
-	connection models.Connection, err error) {
+	connection models.Connection, err error,
+) {
 	for i, line := range lines {
 		hashSymbolIndex := strings.Index(line, "#")
 		if hashSymbolIndex >= 0 {
@@ -54,7 +53,8 @@ func extractDataFromLines(lines []string) (
 }
 
 func extractDataFromLine(line string) (
-	ip netip.Addr, port uint16, protocol string, err error) {
+	ip netip.Addr, port uint16, protocol string, err error,
+) {
 	switch {
 	case strings.HasPrefix(line, "proto "):
 		protocol, err = extractProto(line)
@@ -108,7 +108,8 @@ var (
 )
 
 func extractRemote(line string) (ip netip.Addr, port uint16,
-	protocol string, err error) {
+	protocol string, err error,
+) {
 	fields := strings.Fields(line)
 	n := len(fields)
 
@@ -146,9 +147,7 @@ func extractRemote(line string) (ip netip.Addr, port uint16,
 	return ip, port, protocol, nil
 }
 
-var (
-	errPostLineFieldsCount = errors.New("post line has not 2 fields as expected")
-)
+var errPostLineFieldsCount = errors.New("post line has not 2 fields as expected")
 
 func extractPort(line string) (port uint16, err error) {
 	fields := strings.Fields(line)

internal/openvpn/extract/pem.go

@@ -7,9 +7,7 @@ import (
 	"fmt"
 )
 
-var (
-	errPEMDecode = errors.New("cannot decode PEM encoded block")
-)
+var errPEMDecode = errors.New("cannot decode PEM encoded block")
 
 func PEM(b []byte) (encodedData string, err error) {
 	pemBlock, _ := pem.Decode(b)

internal/openvpn/extract/read.go

@@ -7,7 +7,8 @@ import (
 )
 
 func readCustomConfigLines(filepath string) (
-	lines []string, err error) {
+	lines []string, err error,
+) {
 	file, err := os.Open(filepath)
 	if err != nil {
 		return nil, err

internal/openvpn/logs_test.go

@@ -18,31 +18,38 @@ func Test_processLogLine(t *testing.T) {
 		"openvpn unknown": {
 			"message",
 			"message",
-			levelInfo},
+			levelInfo,
+		},
 		"openvpn note": {
 			"NOTE: message",
 			"message",
-			levelInfo},
+			levelInfo,
+		},
 		"openvpn warning": {
 			"WARNING: message",
 			"message",
-			levelWarn},
+			levelWarn,
+		},
 		"openvpn options error": {
 			"Options error: message",
 			"message",
-			levelError},
+			levelError,
+		},
 		"openvpn ignored message": {
 			"NOTE: UID/GID downgrade will be delayed because of --client, --pull, or --up-delay",
 			"",
-			levelInfo},
+			levelInfo,
+		},
 		"openvpn success": {
 			"Initialization Sequence Completed",
 			"Initialization Sequence Completed",
-			levelInfo},
+			levelInfo,
+		},
 		"openvpn auth failed": {
 			"AUTH: Received control message: AUTH_FAILED",
 			"AUTH: Received control message: AUTH_FAILED\n\nYour credentials might be wrong 🤨\n\n",
-			levelError},
+			levelError,
+		},
 		"TLS key negotiation error": {
 			s: "TLS Error: TLS key negotiation failed to occur within " +
 				"60 seconds (check your network connectivity)",

internal/openvpn/openvpn.go

@@ -14,7 +14,8 @@ type Configurator struct {
 }
 
 func New(logger Infoer, cmder CmdRunStarter,
-	puid, pgid int) *Configurator {
+	puid, pgid int,
+) *Configurator {
 	return &Configurator{
 		logger:       logger,
 		cmder:        cmder,

internal/openvpn/pkcs8/algorithms.go

@@ -7,15 +7,11 @@ import (
 	"fmt"
 )
 
-var (
-	// Algorithm identifiers are listed at
-	// https://www.ibm.com/docs/en/zos/2.3.0?topic=programming-object-identifiers
-	oidDESCBC = asn1.ObjectIdentifier{1, 3, 14, 3, 2, 7} //nolint:gochecknoglobals
-)
+// Algorithm identifiers are listed at
+// https://www.ibm.com/docs/en/zos/2.3.0?topic=programming-object-identifiers
+var oidDESCBC = asn1.ObjectIdentifier{1, 3, 14, 3, 2, 7} //nolint:gochecknoglobals
 
-var (
-	ErrEncryptionAlgorithmNotPBES2 = errors.New("encryption algorithm is not PBES2")
-)
+var ErrEncryptionAlgorithmNotPBES2 = errors.New("encryption algorithm is not PBES2")
 
 type encryptedPrivateKey struct {
 	EncryptionAlgorithm pkix.AlgorithmIdentifier
@@ -28,7 +24,8 @@ type encryptedAlgorithmParams struct {
 }
 
 func getEncryptionAlgorithmOid(der []byte) (
-	encryptionSchemeAlgorithm asn1.ObjectIdentifier, err error) {
+	encryptionSchemeAlgorithm asn1.ObjectIdentifier, err error,
+) {
 	var encryptedPrivateKeyData encryptedPrivateKey
 	_, err = asn1.Unmarshal(der, &encryptedPrivateKeyData)
 	if err != nil {

internal/openvpn/pkcs8/upgrade.go

@@ -8,9 +8,7 @@ import (
 	pkcs8lib "github.com/youmark/pkcs8"
 )
 
-var (
-	ErrUnsupportedKeyType = errors.New("unsupported key type")
-)
+var ErrUnsupportedKeyType = errors.New("unsupported key type")
 
 // UpgradeEncryptedKey eventually upgrades an encrypted key to a newer encryption
 // if its encryption is too weak for Openvpn/Openssl.

internal/openvpn/run.go

@@ -13,7 +13,8 @@ type Runner struct {
 }
 
 func NewRunner(settings settings.OpenVPN, starter CmdStarter,
-	logger Logger) *Runner {
+	logger Logger,
+) *Runner {
 	return &Runner{
 		starter:  starter,
 		logger:   logger,

internal/openvpn/start.go

@@ -18,7 +18,8 @@ const (
 )
 
 func start(ctx context.Context, starter CmdStarter, version string, flags []string) (
-	stdoutLines, stderrLines <-chan string, waitError <-chan error, err error) {
+	stdoutLines, stderrLines <-chan string, waitError <-chan error, err error,
+) {
 	var bin string
 	switch version {
 	case openvpn.Openvpn25:

internal/openvpn/stream.go

@@ -7,7 +7,8 @@ import (
 
 func streamLines(ctx context.Context, done chan<- struct{},
 	logger Logger, stdout, stderr <-chan string,
-	tunnelReady chan<- struct{}) {
+	tunnelReady chan<- struct{},
+) {
 	defer close(done)
 
 	var line string