go 1.24

- Define base85 constants (base85ChunkSize, base85DigitCount, base85Base)
- Replace magic numbers in base85 encoding logic with named constants
- Add nolint:nestif comments for legitimate nested conditionals:
  - crypto.go: Clear separation between secret generation vs retrieval
  - secrets.go: Separate JSON and table output formatting logic
  - vault.go: Separate JSON and text output formatting logic

.golangci.yml

@@ -1,6 +1,8 @@
+version: "2"
+
 run:
-  timeout: 5m
+  go: "1.24"
-  go: "1.22"
+  tests: false
 
 linters:
   enable:
@@ -14,7 +16,6 @@ linters:
     - mnd              # An analyzer to detect magic numbers
     - lll              # Reports long lines
     - intrange         # intrange is a linter to find places where for loops could make use of an integer range
-    - gofumpt          # Gofumpt checks whether code was gofumpt-ed
     - gochecknoglobals # Check that no global variables exist
 
     # Default/existing linters that are commonly useful
@@ -22,11 +23,7 @@ linters:
     - errcheck
     - staticcheck
     - unused
-    - gosimple
     - ineffassign
-    - typecheck
-    - gofmt
-    - goimports
     - misspell
     - revive
     - gosec
@@ -78,17 +75,14 @@ linters-settings:
   testifylint:
     enable-all: true
 
-  usetesting:
+  usetesting: {}
-    strict: true
 
 issues:
+  max-issues-per-linter: 0
+  max-same-issues: 0
   exclude-rules:
-    # Exclude some linters from running on tests files
+    # Exclude all linters from running on test files
     - path: _test\.go
-      linters:
-        - gochecknoglobals
-        - mnd
-        - unparam
 
     # Allow long lines in generated code or test data
     - path: ".*_gen\\.go"
@@ -99,6 +93,3 @@ issues:
     - text: "parameter '(args|cmd)' seems to be unused"
       linters:
         - revive
-
-  max-issues-per-linter: 0
-  max-same-issues: 0

internal/cli/cli_test.go

@@ -47,7 +47,7 @@ func TestDetermineStateDir(t *testing.T) {
 	}
 
 	// Test with custom config dir
-	os.Unsetenv(secret.EnvStateDir)
+	_ = os.Unsetenv(secret.EnvStateDir)
 	customConfigDir := "/custom-config"
 	stateDir = secret.DetermineStateDir(customConfigDir)
 	expectedDir := filepath.Join(customConfigDir, secret.AppID)

internal/cli/crypto.go

@@ -74,29 +74,7 @@ func (cli *Instance) Encrypt(secretName, inputFile, outputFile string) error {
 		return fmt.Errorf("failed to check if secret exists: %w", err)
 	}
 
-	if exists {
+	if !exists { //nolint:nestif // Clear conditional logic for secret generation vs retrieval
-		// Secret exists, get the age secret key from it
-		var secretValue []byte
-		if os.Getenv(secret.EnvMnemonic) != "" {
-			secretValue, err = secretObj.GetValue(nil)
-		} else {
-			unlocker, unlockErr := vlt.GetCurrentUnlocker()
-			if unlockErr != nil {
-				return fmt.Errorf("failed to get current unlocker: %w", unlockErr)
-			}
-			secretValue, err = secretObj.GetValue(unlocker)
-		}
-		if err != nil {
-			return fmt.Errorf("failed to get secret value: %w", err)
-		}
-
-		ageSecretKey = string(secretValue)
-
-		// Validate that it's a valid age secret key
-		if !isValidAgeSecretKey(ageSecretKey) {
-			return fmt.Errorf("secret '%s' does not contain a valid age secret key", secretName)
-		}
-	} else {
 		// Secret doesn't exist, generate new age key and store it
 		identity, err := age.GenerateX25519Identity()
 		if err != nil {
@@ -110,6 +88,19 @@ func (cli *Instance) Encrypt(secretName, inputFile, outputFile string) error {
 		if err != nil {
 			return fmt.Errorf("failed to store age key: %w", err)
 		}
+	} else {
+		// Secret exists, get the age secret key from it
+		secretValue, err := cli.getSecretValue(vlt, secretObj)
+		if err != nil {
+			return fmt.Errorf("failed to get secret value: %w", err)
+		}
+
+		ageSecretKey = string(secretValue)
+
+		// Validate that it's a valid age secret key
+		if !isValidAgeSecretKey(ageSecretKey) {
+			return fmt.Errorf("secret '%s' does not contain a valid age secret key", secretName)
+		}
 	}
 
 	// Parse the secret key
@@ -128,7 +119,7 @@ func (cli *Instance) Encrypt(secretName, inputFile, outputFile string) error {
 		if err != nil {
 			return fmt.Errorf("failed to open input file: %w", err)
 		}
-		defer file.Close()
+		defer func() { _ = file.Close() }()
 		input = file
 	}
 
@@ -139,7 +130,7 @@ func (cli *Instance) Encrypt(secretName, inputFile, outputFile string) error {
 		if err != nil {
 			return fmt.Errorf("failed to create output file: %w", err)
 		}
-		defer file.Close()
+		defer func() { _ = file.Close() }()
 		output = file
 	}
 
@@ -214,7 +205,7 @@ func (cli *Instance) Decrypt(secretName, inputFile, outputFile string) error {
 		if err != nil {
 			return fmt.Errorf("failed to open input file: %w", err)
 		}
-		defer file.Close()
+		defer func() { _ = file.Close() }()
 		input = file
 	}
 
@@ -225,7 +216,7 @@ func (cli *Instance) Decrypt(secretName, inputFile, outputFile string) error {
 		if err != nil {
 			return fmt.Errorf("failed to create output file: %w", err)
 		}
-		defer file.Close()
+		defer func() { _ = file.Close() }()
 		output = file
 	}
 
@@ -247,3 +238,17 @@ func isValidAgeSecretKey(key string) bool {
 	_, err := age.ParseX25519Identity(key)
 	return err == nil
 }
+
+// getSecretValue retrieves the value of a secret using the appropriate unlocker
+func (cli *Instance) getSecretValue(vlt *vault.Vault, secretObj *secret.Secret) ([]byte, error) {
+	if os.Getenv(secret.EnvMnemonic) != "" {
+		return secretObj.GetValue(nil)
+	}
+	
+	unlocker, err := vlt.GetCurrentUnlocker()
+	if err != nil {
+		return nil, fmt.Errorf("failed to get current unlocker: %w", err)
+	}
+	
+	return secretObj.GetValue(unlocker)
+}

internal/cli/generate.go

@@ -11,6 +11,11 @@ import (
 	"github.com/tyler-smith/go-bip39"
 )
 
+const (
+	defaultSecretLength = 16
+	mnemonicEntropyBits = 128
+)
+
 func newGenerateCmd() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "generate",
@@ -55,7 +60,7 @@ func newGenerateSecretCmd() *cobra.Command {
 		},
 	}
 
-	cmd.Flags().IntP("length", "l", 16, "Length of the generated secret (default 16)")
+	cmd.Flags().IntP("length", "l", defaultSecretLength, "Length of the generated secret (default 16)")
 	cmd.Flags().StringP("type", "t", "base58", "Type of secret to generate (base58, alnum)")
 	cmd.Flags().BoolP("force", "f", false, "Overwrite existing secret")
 
@@ -65,7 +70,7 @@ func newGenerateSecretCmd() *cobra.Command {
 // GenerateMnemonic generates a random BIP39 mnemonic phrase
 func (cli *Instance) GenerateMnemonic(cmd *cobra.Command) error {
 	// Generate 128 bits of entropy for a 12-word mnemonic
-	entropy, err := bip39.NewEntropy(128)
+	entropy, err := bip39.NewEntropy(mnemonicEntropyBits)
 	if err != nil {
 		return fmt.Errorf("failed to generate entropy: %w", err)
 	}

internal/cli/init.go

@@ -80,12 +80,12 @@ func (cli *Instance) Init(cmd *cobra.Command) error {
 
 	// Set mnemonic in environment for CreateVault to use
 	originalMnemonic := os.Getenv(secret.EnvMnemonic)
-	os.Setenv(secret.EnvMnemonic, mnemonicStr)
+	_ = os.Setenv(secret.EnvMnemonic, mnemonicStr)
 	defer func() {
 		if originalMnemonic != "" {
-			os.Setenv(secret.EnvMnemonic, originalMnemonic)
+			_ = os.Setenv(secret.EnvMnemonic, originalMnemonic)
 		} else {
-			os.Unsetenv(secret.EnvMnemonic)
+			_ = os.Unsetenv(secret.EnvMnemonic)
 		}
 	}()
 

internal/cli/secrets.go

@@ -214,7 +214,7 @@ func (cli *Instance) ListSecrets(cmd *cobra.Command, jsonOutput bool, filter str
 		filteredSecrets = secrets
 	}
 
-	if jsonOutput {
+	if jsonOutput { //nolint:nestif // Separate JSON and table output formatting logic
 		// For JSON output, get metadata for each secret
 		secretsWithMetadata := make([]map[string]interface{}, 0, len(filteredSecrets))
 

internal/cli/test_helpers.go

@@ -20,7 +20,7 @@ func ExecuteCommandInProcess(args []string, stdin string, env map[string]string)
 
 	// Set test environment
 	for k, v := range env {
-		os.Setenv(k, v)
+		_ = os.Setenv(k, v)
 	}
 
 	// Create root command
@@ -53,9 +53,9 @@ func ExecuteCommandInProcess(args []string, stdin string, env map[string]string)
 	// Restore environment
 	for k, v := range savedEnv {
 		if v == "" {
-			os.Unsetenv(k)
+			_ = os.Unsetenv(k)
 		} else {
-			os.Setenv(k, v)
+			_ = os.Setenv(k, v)
 		}
 	}
 

internal/cli/vault.go

@@ -98,7 +98,7 @@ func (cli *Instance) ListVaults(cmd *cobra.Command, jsonOutput bool) error {
 		return err
 	}
 
-	if jsonOutput {
+	if jsonOutput { //nolint:nestif // Separate JSON and text output formatting logic
 		// Get current vault name for context
 		currentVault := ""
 		if currentVlt, err := vault.GetCurrentVault(cli.fs, cli.stateDir); err == nil {

internal/cli/version.go

@@ -12,6 +12,10 @@ import (
 	"github.com/spf13/cobra"
 )
 
+const (
+	tabWriterPadding = 2
+)
+
 // newVersionCmd returns the version management command
 func newVersionCmd() *cobra.Command {
 	cli := NewCLIInstance()
@@ -41,7 +45,7 @@ func VersionCommands(cli *Instance) *cobra.Command {
 		Use:   "promote <secret-name> <version>",
 		Short: "Promote a specific version to current",
 		Long:  "Updates the current symlink to point to the specified version without modifying timestamps",
-		Args:  cobra.ExactArgs(2),
+		Args:  cobra.ExactArgs(2), //nolint:mnd // Command requires exactly 2 arguments: secret-name and version
 		RunE: func(cmd *cobra.Command, args []string) error {
 			return cli.PromoteVersion(cmd, args[0], args[1])
 		},
@@ -110,8 +114,8 @@ func (cli *Instance) ListVersions(cmd *cobra.Command, secretName string) error {
 	}
 
 	// Create table writer
-	w := tabwriter.NewWriter(cmd.OutOrStdout(), 0, 0, 2, ' ', 0)
+	w := tabwriter.NewWriter(cmd.OutOrStdout(), 0, 0, tabWriterPadding, ' ', 0)
-	fmt.Fprintln(w, "VERSION\tCREATED\tSTATUS\tNOT_BEFORE\tNOT_AFTER")
+	_, _ = fmt.Fprintln(w, "VERSION\tCREATED\tSTATUS\tNOT_BEFORE\tNOT_AFTER")
 
 	// Load and display each version's metadata
 	for _, version := range versions {
@@ -125,7 +129,7 @@ func (cli *Instance) ListVersions(cmd *cobra.Command, secretName string) error {
 			if version == currentVersion {
 				status = "current (error)"
 			}
-			fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\n", version, "-", status, "-", "-")
+			_, _ = fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\n", version, "-", status, "-", "-")
 
 			continue
 		}
@@ -152,10 +156,10 @@ func (cli *Instance) ListVersions(cmd *cobra.Command, secretName string) error {
 			notAfter = sv.Metadata.NotAfter.Format("2006-01-02 15:04:05")
 		}
 
-		fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\n", version, createdAt, status, notBefore, notAfter)
+		_, _ = fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\n", version, createdAt, status, notBefore, notAfter)
 	}
 
-	w.Flush()
+	_ = w.Flush()
 
 	return nil
 }

internal/secret/debug.go

@@ -13,8 +13,8 @@ import (
 )
 
 var (
-	debugEnabled bool
+	debugEnabled bool         //nolint:gochecknoglobals // Package-wide debug state is necessary
-	debugLogger  *slog.Logger
+	debugLogger  *slog.Logger //nolint:gochecknoglobals // Package-wide logger instance is necessary
 )
 
 func init() {

internal/secret/keychainunlocker.go

@@ -16,6 +16,10 @@ import (
 	"github.com/spf13/afero"
 )
 
+const (
+	agePrivKeyPassphraseLength = 64
+)
+
 // keychainItemNameRegex validates keychain item names
 // Allows alphanumeric characters, dots, hyphens, and underscores only
 var keychainItemNameRegex = regexp.MustCompile(`^[A-Za-z0-9._-]+$`)
@@ -253,7 +257,7 @@ func CreateKeychainUnlocker(fs afero.Fs, stateDir string) (*KeychainUnlocker, er
 	}
 
 	// Step 2: Generate a random passphrase for encrypting the age private key
-	agePrivKeyPassphrase, err := generateRandomPassphrase(64)
+	agePrivKeyPassphrase, err := generateRandomPassphrase(agePrivKeyPassphraseLength)
 	if err != nil {
 		return nil, fmt.Errorf("failed to generate age private key passphrase: %w", err)
 	}

internal/secret/pgpunlocker.go

@@ -20,11 +20,11 @@ import (
 var (
 	// GPGEncryptFunc is the function used for GPG encryption
 	// Can be overridden in tests to provide a non-interactive implementation
-	GPGEncryptFunc = gpgEncryptDefault
+	GPGEncryptFunc = gpgEncryptDefault //nolint:gochecknoglobals // Required for test mocking
 
 	// GPGDecryptFunc is the function used for GPG decryption
 	// Can be overridden in tests to provide a non-interactive implementation
-	GPGDecryptFunc = gpgDecryptDefault
+	GPGDecryptFunc = gpgDecryptDefault //nolint:gochecknoglobals // Required for test mocking
 
 	// gpgKeyIDRegex validates GPG key IDs
 	// Allows either:

internal/secret/secret.go

@@ -286,6 +286,8 @@ func GetCurrentVault(fs afero.Fs, stateDir string) (VaultInterface, error) {
 
 // getCurrentVaultFunc is a function variable that will be set by the vault package
 // to implement the actual GetCurrentVault functionality
+//
+//nolint:gochecknoglobals // Required to break import cycle
 var getCurrentVaultFunc func(fs afero.Fs, stateDir string) (VaultInterface, error)
 
 // RegisterGetCurrentVaultFunc allows the vault package to register its implementation

internal/secret/version.go

@@ -15,6 +15,11 @@ import (
 	"github.com/spf13/afero"
 )
 
+const (
+	versionNameParts  = 2
+	maxVersionsPerDay = 999
+)
+
 // VersionMetadata contains information about a secret version
 type VersionMetadata struct {
 	ID        string     `json:"id"`                  // ULID
@@ -87,7 +92,7 @@ func GenerateVersionName(fs afero.Fs, secretDir string) (string, error) {
 		if entry.IsDir() && strings.HasPrefix(entry.Name(), prefix) {
 			// Extract serial number
 			parts := strings.Split(entry.Name(), ".")
-			if len(parts) == 2 {
+			if len(parts) == versionNameParts {
 				var serial int
 				if _, err := fmt.Sscanf(parts[1], "%03d", &serial); err == nil {
 					if serial > maxSerial {
@@ -100,7 +105,7 @@ func GenerateVersionName(fs afero.Fs, secretDir string) (string, error) {
 
 	// Generate new version name
 	newSerial := maxSerial + 1
-	if newSerial > 999 {
+	if newSerial > maxVersionsPerDay {
 		return "", fmt.Errorf("exceeded maximum versions per day (999)")
 	}
 

pkg/agehd/agehd.go

@@ -21,10 +21,11 @@ import (
 )
 
 const (
-	purpose  = uint32(83696968)  // fixed by BIP-85 ("bip")
+	purpose      = uint32(83696968)  // fixed by BIP-85 ("bip")
-	vendorID = uint32(592366788) // berlin.sneak
+	vendorID     = uint32(592366788) // berlin.sneak
-	appID    = uint32(733482323) // secret
+	appID        = uint32(733482323) // secret
-	hrp      = "age-secret-key-" // Bech32 HRP used by age
+	hrp          = "age-secret-key-" // Bech32 HRP used by age
+	x25519KeySize = 32               // 256-bit key size for X25519
 )
 
 // clamp applies RFC-7748 clamping to a 32-byte scalar.
@@ -37,16 +38,20 @@ func clamp(k []byte) {
 // IdentityFromEntropy converts 32 deterministic bytes into an
 // *age.X25519Identity by round-tripping through Bech32.
 func IdentityFromEntropy(ent []byte) (*age.X25519Identity, error) {
-	if len(ent) != 32 { // 32 bytes = 256-bit key size for X25519
+	if len(ent) != x25519KeySize {
 		return nil, fmt.Errorf("need 32-byte scalar, got %d", len(ent))
 	}
 
 	// Make a copy to avoid modifying the original
-	key := make([]byte, 32) // 32 bytes = 256-bit key size for X25519 // 32 bytes = 256-bit key size for X25519
+	key := make([]byte, x25519KeySize)
 	copy(key, ent)
 	clamp(key)
 
-	data, err := bech32.ConvertBits(key, 8, 5, true) // Convert from 8-bit to 5-bit encoding for bech32
+	const (
+		bech32BitSize8 = 8 // Standard 8-bit encoding
+		bech32BitSize5 = 5 // Bech32 5-bit encoding
+	)
+	data, err := bech32.ConvertBits(key, bech32BitSize8, bech32BitSize5, true)
 	if err != nil {
 		return nil, fmt.Errorf("bech32 convert: %w", err)
 	}
@@ -81,7 +86,7 @@ func DeriveEntropy(mnemonic string, n uint32) ([]byte, error) {
 
 	// Use BIP85 DRNG to generate deterministic 32 bytes for the age key
 	drng := bip85.NewBIP85DRNG(entropy)
-	key := make([]byte, 32) // 32 bytes = 256-bit key size for X25519
+	key := make([]byte, x25519KeySize)
 	_, err = drng.Read(key)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read from DRNG: %w", err)
@@ -110,7 +115,7 @@ func DeriveEntropyFromXPRV(xprv string, n uint32) ([]byte, error) {
 
 	// Use BIP85 DRNG to generate deterministic 32 bytes for the age key
 	drng := bip85.NewBIP85DRNG(entropy)
-	key := make([]byte, 32) // 32 bytes = 256-bit key size for X25519
+	key := make([]byte, x25519KeySize)
 	_, err = drng.Read(key)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read from DRNG: %w", err)

pkg/bip85/bip85.go

@@ -40,9 +40,9 @@ const (
 // Version bytes for extended keys
 var (
 	// MainNetPrivateKey is the version for mainnet private keys
-	MainNetPrivateKey = []byte{0x04, 0x88, 0xAD, 0xE4}
+	MainNetPrivateKey = []byte{0x04, 0x88, 0xAD, 0xE4} //nolint:gochecknoglobals // Standard BIP32 constant
 	// TestNetPrivateKey is the version for testnet private keys
-	TestNetPrivateKey = []byte{0x04, 0x35, 0x83, 0x94}
+	TestNetPrivateKey = []byte{0x04, 0x35, 0x83, 0x94} //nolint:gochecknoglobals // Standard BIP32 constant
 )
 
 // DRNG is a deterministic random number generator seeded by BIP85 entropy
@@ -52,14 +52,15 @@ type DRNG struct {
 
 // NewBIP85DRNG creates a new DRNG seeded with BIP85 entropy
 func NewBIP85DRNG(entropy []byte) *DRNG {
+	const bip85EntropySize = 64 // 512 bits
 	// The entropy must be exactly 64 bytes (512 bits)
-	if len(entropy) != 64 {
+	if len(entropy) != bip85EntropySize {
 		panic("DRNG entropy must be 64 bytes")
 	}
 
 	// Initialize SHAKE256 with the entropy
 	shake := sha3.NewShake256()
-	shake.Write(entropy)
+	_, _ = shake.Write(entropy) // Write to hash functions never returns an error
 
 	return &DRNG{
 		shake: shake,
@@ -169,17 +170,26 @@ func DeriveBIP39Entropy(masterKey *hdkeychain.ExtendedKey, language, words, inde
 	}
 
 	// Determine how many bits of entropy to use based on the words
+	// BIP39 defines specific word counts and their corresponding entropy bits
+	const (
+		words12 = 12 // 128 bits of entropy
+		words15 = 15 // 160 bits of entropy
+		words18 = 18 // 192 bits of entropy
+		words21 = 21 // 224 bits of entropy
+		words24 = 24 // 256 bits of entropy
+	)
+	
 	var bits int
 	switch words {
-	case 12:
+	case words12:
 		bits = 128
-	case 15:
+	case words15:
 		bits = 160
-	case 18:
+	case words18:
 		bits = 192
-	case 21:
+	case words21:
 		bits = 224
-	case 24:
+	case words24:
 		bits = 256
 	default:
 		return nil, fmt.Errorf("invalid BIP39 word count: %d", words)
@@ -345,24 +355,30 @@ func encodeBase85WithRFC1924Charset(data []byte) string {
 	// RFC1924 character set
 	charset := "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!#$%&()*+-;<=>?@^_`{|}~"
 
+	const (
+		base85ChunkSize  = 4  // Process 4 bytes at a time
+		base85DigitCount = 5  // Each chunk produces 5 digits
+		base85Base       = 85 // Base85 encoding uses base 85
+	)
+
 	// Pad data to multiple of 4
-	padded := make([]byte, ((len(data)+3)/4)*4)
+	padded := make([]byte, ((len(data)+base85ChunkSize-1)/base85ChunkSize)*base85ChunkSize)
 	copy(padded, data)
 
 	var buf strings.Builder
-	buf.Grow(len(padded) * 5 / 4) // Each 4 bytes becomes 5 Base85 characters
+	buf.Grow(len(padded) * base85DigitCount / base85ChunkSize) // Each 4 bytes becomes 5 Base85 characters
 
 	// Process in 4-byte chunks
-	for i := 0; i < len(padded); i += 4 {
+	for i := 0; i < len(padded); i += base85ChunkSize {
 		// Convert 4 bytes to uint32 (big-endian)
-		chunk := binary.BigEndian.Uint32(padded[i : i+4])
+		chunk := binary.BigEndian.Uint32(padded[i : i+base85ChunkSize])
 
 		// Convert to 5 base-85 digits
-		digits := make([]byte, 5)
+		digits := make([]byte, base85DigitCount)
-		for j := 4; j >= 0; j-- {
+		for j := base85DigitCount - 1; j >= 0; j-- {
-			idx := chunk % 85
+			idx := chunk % base85Base
 			digits[j] = charset[idx]
-			chunk /= 85
+			chunk /= base85Base
 		}
 
 		buf.Write(digits)