chore: update linter (#1367)

.github/workflows/main.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     env:
       GO_VERSION: 1.16
-      GOLANGCI_LINT_VERSION: v1.36.0
+      GOLANGCI_LINT_VERSION: v1.38.0
       HUGO_VERSION: 0.54.0
       SEIHON_VERSION: v0.5.1
       CGO_ENABLED: 0

.golangci.toml

@@ -20,10 +20,32 @@
   [linters-settings.misspell]
     locale = "US"
 
+  [linters-settings.depguard]
+    list-type = "blacklist"
+    include-go-root = false
+    packages = ["github.com/pkg/errors"]
+
+  [linters-settings.godox]
+    keywords = ["FIXME"]
+
+  [linters-settings.gocritic]
+    enabled-tags = ["diagnostic", "style", "performance"]
+    disabled-checks= [
+      "paramTypeCombine", # already handle by gofumpt.extra-rules
+      "whyNoLint", # already handle by nonolint
+      "unnamedResult",
+      "hugeParam",
+      "sloppyReassign",
+      "rangeValCopy",
+      "octalLiteral",
+      "ptrToRefParam",
+    ]
+
 [linters]
   enable-all = true
   disable = [
-    "maligned",
+    "interfacer", # deprecated
+    "maligned", # deprecated
     "lll",
     "gas",
     "dupl",
@@ -32,7 +54,6 @@
     "bodyclose",
     "wsl",
     "stylecheck",
-    "godox",
     "gomnd",
     "testpackage", # not relevant
     "nestif", # too many false-positive
@@ -46,6 +67,9 @@
     "makezero", # not relevant
     "forbidigo", # not relevant
     "ifshort", # not relevant
+    "cyclop", # duplicate of gocyclo
+    "wastedassign", # false-positive https://github.com/sanposhiho/wastedassign/issues/21
+    "forcetypeassert",
   ]
 
 [issues]
@@ -139,4 +163,7 @@
     linters = ["thelper"]
   [[issues.exclude-rules]]
     path = "providers/dns/oraclecloud/oraclecloud_test.go"
-    text = "SA1019: x509.EncryptPEMBlock is deprecated:"
+    text = "SA1019: x509.EncryptPEMBlock has been deprecated since Go 1.16"
+  [[issues.exclude-rules]]
+    path = "challenge/http01/domain_matcher.go"
+    text = "yodaStyleExpr"

acme/api/account.go

@@ -46,7 +46,7 @@ func (a *AccountService) NewEAB(accMsg acme.Account, kid, hmacEncoded string) (a
 
 // Get Retrieves an account.
 func (a *AccountService) Get(accountURL string) (acme.Account, error) {
-	if len(accountURL) == 0 {
+	if accountURL == "" {
 		return acme.Account{}, errors.New("account[get]: empty URL")
 	}
 
@@ -60,7 +60,7 @@ func (a *AccountService) Get(accountURL string) (acme.Account, error) {
 
 // Update Updates an account.
 func (a *AccountService) Update(accountURL string, req acme.Account) (acme.Account, error) {
-	if len(accountURL) == 0 {
+	if accountURL == "" {
 		return acme.Account{}, errors.New("account[update]: empty URL")
 	}
 
@@ -75,7 +75,7 @@ func (a *AccountService) Update(accountURL string, req acme.Account) (acme.Accou
 
 // Deactivate Deactivates an account.
 func (a *AccountService) Deactivate(accountURL string) error {
-	if len(accountURL) == 0 {
+	if accountURL == "" {
 		return errors.New("account[deactivate]: empty URL")
 	}
 

acme/api/authorization.go

@@ -10,7 +10,7 @@ type AuthorizationService service
 
 // Get Gets an authorization.
 func (c *AuthorizationService) Get(authzURL string) (acme.Authorization, error) {
-	if len(authzURL) == 0 {
+	if authzURL == "" {
 		return acme.Authorization{}, errors.New("authorization[get]: empty URL")
 	}
 
@@ -24,7 +24,7 @@ func (c *AuthorizationService) Get(authzURL string) (acme.Authorization, error)
 
 // Deactivate Deactivates an authorization.
 func (c *AuthorizationService) Deactivate(authzURL string) error {
-	if len(authzURL) == 0 {
+	if authzURL == "" {
 		return errors.New("authorization[deactivate]: empty URL")
 	}
 

acme/api/certificate.go

@@ -62,7 +62,7 @@ func (c *CertificateService) Revoke(req acme.RevokeCertMessage) error {
 
 // get Returns the certificate and the "up" link.
 func (c *CertificateService) get(certURL string, bundle bool) (*acme.RawCertificate, http.Header, error) {
-	if len(certURL) == 0 {
+	if certURL == "" {
 		return nil, nil, errors.New("certificate[get]: empty URL")
 	}
 
@@ -112,7 +112,7 @@ func (c *CertificateService) getCertificateChain(cert []byte, headers http.Heade
 
 // getIssuerFromLink requests the issuer certificate.
 func (c *CertificateService) getIssuerFromLink(up string) ([]byte, error) {
-	if len(up) == 0 {
+	if up == "" {
 		return nil, nil
 	}
 

acme/api/challenge.go

@@ -10,7 +10,7 @@ type ChallengeService service
 
 // New Creates a challenge.
 func (c *ChallengeService) New(chlgURL string) (acme.ExtendedChallenge, error) {
-	if len(chlgURL) == 0 {
+	if chlgURL == "" {
 		return acme.ExtendedChallenge{}, errors.New("challenge[new]: empty URL")
 	}
 
@@ -29,7 +29,7 @@ func (c *ChallengeService) New(chlgURL string) (acme.ExtendedChallenge, error) {
 
 // Get Gets a challenge.
 func (c *ChallengeService) Get(chlgURL string) (acme.ExtendedChallenge, error) {
-	if len(chlgURL) == 0 {
+	if chlgURL == "" {
 		return acme.ExtendedChallenge{}, errors.New("challenge[get]: empty URL")
 	}
 

acme/api/order.go

@@ -32,7 +32,7 @@ func (o *OrderService) New(domains []string) (acme.ExtendedOrder, error) {
 
 // Get Gets an order.
 func (o *OrderService) Get(orderURL string) (acme.ExtendedOrder, error) {
-	if len(orderURL) == 0 {
+	if orderURL == "" {
 		return acme.ExtendedOrder{}, errors.New("order[get]: empty URL")
 	}
 

acme/errors.go

@@ -35,7 +35,7 @@ type SubProblem struct {
 
 func (p ProblemDetails) Error() string {
 	msg := fmt.Sprintf("acme: error: %d", p.HTTPStatus)
-	if len(p.Method) != 0 || len(p.URL) != 0 {
+	if p.Method != "" || p.URL != "" {
 		msg += fmt.Sprintf(" :: %s :: %s", p.Method, p.URL)
 	}
 	msg += fmt.Sprintf(" :: %s :: %s", p.Type, p.Detail)
@@ -44,7 +44,7 @@ func (p ProblemDetails) Error() string {
 		msg += fmt.Sprintf(", problem: %q :: %s", sub.Type, sub.Detail)
 	}
 
-	if len(p.Instance) != 0 {
+	if p.Instance != "" {
 		msg += ", url: " + p.Instance
 	}
 

certcrypto/crypto.go

@@ -173,8 +173,8 @@ func pemDecode(data []byte) (*pem.Block, error) {
 	return pemBlock, nil
 }
 
-func PemDecodeTox509CSR(pem []byte) (*x509.CertificateRequest, error) {
-	pemBlock, err := pemDecode(pem)
+func PemDecodeTox509CSR(data []byte) (*x509.CertificateRequest, error) {
+	pemBlock, err := pemDecode(data)
 	if pemBlock == nil {
 		return nil, err
 	}

cmd/cmd_before.go

@@ -6,7 +6,7 @@ import (
 )
 
 func Before(ctx *cli.Context) error {
-	if len(ctx.GlobalString("path")) == 0 {
+	if ctx.GlobalString("path") == "" {
 		log.Fatal("Could not determine current working directory. Please pass --path.")
 	}
 
@@ -15,7 +15,7 @@ func Before(ctx *cli.Context) error {
 		log.Fatalf("Could not check/create path: %v", err)
 	}
 
-	if len(ctx.GlobalString("server")) == 0 {
+	if ctx.GlobalString("server") == "" {
 		log.Fatal("Could not determine current working server. Please pass --server.")
 	}
 

cmd/setup.go

@@ -82,7 +82,7 @@ func getKeyType(ctx *cli.Context) certcrypto.KeyType {
 
 func getEmail(ctx *cli.Context) string {
 	email := ctx.GlobalString("email")
-	if len(email) == 0 {
+	if email == "" {
 		log.Fatal("You have to pass an account (email address) to the program using --email or -m")
 	}
 	return email

platform/config/env/env.go

@@ -66,7 +66,7 @@ func GetWithFallback(groups ...[]string) (map[string]string, error) {
 		}
 
 		value, envVar := getOneWithFallback(names[0], names[1:]...)
-		if len(value) == 0 {
+		if value == "" {
 			missingEnvVars = append(missingEnvVars, envVar)
 			continue
 		}
@@ -122,7 +122,7 @@ func GetOrDefaultSecond(envVar string, defaultValue time.Duration) time.Duration
 // Returns the default if the envvar cannot be find.
 func GetOrDefaultString(envVar, defaultValue string) string {
 	v := GetOrFile(envVar)
-	if len(v) == 0 {
+	if v == "" {
 		return defaultValue
 	}
 

platform/tester/env.go

@@ -87,7 +87,7 @@ func (e *EnvTest) IsLiveTest() bool {
 
 	liveTest = liveTest && len(e.values) == len(e.keys)
 
-	if liveTest && len(e.domainKey) > 0 && len(e.domain) == 0 {
+	if liveTest && e.domainKey != "" && e.domain == "" {
 		return false
 	}
 
@@ -129,7 +129,7 @@ func (e *EnvTest) Apply(envVars map[string]string) {
 			panic(fmt.Sprintf("Unauthorized action, the env var %s is not managed.", key))
 		}
 
-		if len(value) == 0 {
+		if value == "" {
 			os.Unsetenv(key)
 		} else {
 			os.Setenv(key, value)

platform/tester/env_test.go

@@ -24,7 +24,7 @@ func TestMain(m *testing.M) {
 
 func applyEnv(envVars map[string]string) {
 	for key, value := range envVars {
-		if len(value) == 0 {
+		if value == "" {
 			os.Unsetenv(key)
 		} else {
 			os.Setenv(key, value)

providers/dns/alidns/alidns.go

@@ -86,7 +86,7 @@ func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
 		return nil, fmt.Errorf("alicloud: credentials missing")
 	}
 
-	if len(config.RegionID) == 0 {
+	if config.RegionID == "" {
 		config.RegionID = defaultRegionID
 	}
 

providers/dns/alidns/alidns_test.go

@@ -63,7 +63,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -111,7 +111,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/arvancloud/arvancloud_test.go

@@ -43,7 +43,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -87,7 +87,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/auroradns/auroradns_test.go

@@ -81,7 +81,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -133,7 +133,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/autodns/autodns_test.go

@@ -64,7 +64,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -115,7 +115,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/azure/azure.go

@@ -291,7 +291,7 @@ func getAuthorizer(config *Config) (autorest.Authorizer, error) {
 // borrowed from https://github.com/Microsoft/azureimds/blob/master/imdssample.go
 func getMetadata(config *Config, field string) (string, error) {
 	metadataEndpoint := config.MetadataEndpoint
-	if len(metadataEndpoint) == 0 {
+	if metadataEndpoint == "" {
 		metadataEndpoint = defaultMetadataEndpoint
 	}
 

providers/dns/azure/azure_test.go

@@ -59,7 +59,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -144,7 +144,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/bindman/bindman_test.go

@@ -53,7 +53,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -95,7 +95,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 		t.Run(test.desc, func(t *testing.T) {
 			p, err := NewDNSProviderConfig(test.config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/bluecat/bluecat_test.go

@@ -111,7 +111,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -202,7 +202,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/bluecat/client.go

@@ -59,7 +59,7 @@ func (d *DNSProvider) login() error {
 
 // Destroys Bluecat Session.
 func (d *DNSProvider) logout() error {
-	if len(d.token) == 0 {
+	if d.token == "" {
 		// nothing to do
 		return nil
 	}

providers/dns/checkdomain/checkdomain_test.go

@@ -52,7 +52,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -91,7 +91,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/clouddns/clouddns_test.go

@@ -69,7 +69,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				assert.NotNil(t, p.config)
@@ -131,7 +131,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/cloudflare/cloudflare_test.go

@@ -78,7 +78,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				assert.NotNil(t, p.config)
@@ -253,7 +253,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				assert.NotNil(t, p.config)

providers/dns/cloudns/cloudns_test.go

@@ -85,7 +85,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -151,7 +151,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/cloudns/internal/client.go

@@ -265,8 +265,8 @@ func (c *Client) GetUpdateStatus(zoneName string) (*SyncProgress, error) {
 	return &SyncProgress{Complete: updatedCount == len(records), Updated: updatedCount, Total: len(records)}, nil
 }
 
-func (c *Client) doRequest(method string, url *url.URL) (json.RawMessage, error) {
-	req, err := c.buildRequest(method, url)
+func (c *Client) doRequest(method string, uri *url.URL) (json.RawMessage, error) {
+	req, err := c.buildRequest(method, uri)
 	if err != nil {
 		return nil, err
 	}
@@ -290,8 +290,8 @@ func (c *Client) doRequest(method string, url *url.URL) (json.RawMessage, error)
 	return content, nil
 }
 
-func (c *Client) buildRequest(method string, url *url.URL) (*http.Request, error) {
-	q := url.Query()
+func (c *Client) buildRequest(method string, uri *url.URL) (*http.Request, error) {
+	q := uri.Query()
 
 	if c.subAuthID != "" {
 		q.Set("sub-auth-id", c.subAuthID)
@@ -301,9 +301,9 @@ func (c *Client) buildRequest(method string, url *url.URL) (*http.Request, error
 
 	q.Set("auth-password", c.authPassword)
 
-	url.RawQuery = q.Encode()
+	uri.RawQuery = q.Encode()
 
-	req, err := http.NewRequest(method, url.String(), nil)
+	req, err := http.NewRequest(method, uri.String(), nil)
 	if err != nil {
 		return nil, fmt.Errorf("invalid request: %w", err)
 	}

providers/dns/cloudxns/cloudxns_test.go

@@ -63,7 +63,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -111,7 +111,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/conoha/conoha_test.go

@@ -78,7 +78,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -137,7 +137,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/constellix/constellix_test.go

@@ -63,7 +63,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -112,7 +112,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/desec/desec_test.go

@@ -42,7 +42,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -76,7 +76,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/designate/designate_test.go

@@ -112,7 +112,7 @@ func TestNewDNSProvider_fromEnv(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -202,7 +202,7 @@ func TestNewDNSProvider_fromCloud(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -251,7 +251,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/digitalocean/digitalocean_test.go

@@ -60,7 +60,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -95,7 +95,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/dnsimple/dnsimple_test.go

@@ -57,7 +57,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -105,7 +105,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -128,7 +128,7 @@ func TestLivePresent(t *testing.T) {
 
 	envTest.RestoreEnv()
 
-	if len(os.Getenv(EnvBaseURL)) == 0 {
+	if os.Getenv(EnvBaseURL) == "" {
 		os.Setenv(EnvBaseURL, sandboxURL)
 	}
 
@@ -146,7 +146,7 @@ func TestLiveCleanUp(t *testing.T) {
 
 	envTest.RestoreEnv()
 
-	if len(os.Getenv(EnvBaseURL)) == 0 {
+	if os.Getenv(EnvBaseURL) == "" {
 		os.Setenv(EnvBaseURL, sandboxURL)
 	}
 

providers/dns/dnsmadeeasy/dnsmadeeasy_test.go

@@ -65,7 +65,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -115,7 +115,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/dnspod/dnspod.toml

@@ -19,5 +19,5 @@ lego --email myemail@example.com --dns dnspod --domains my.example.org run
     DNSPOD_HTTP_TIMEOUT = "API request timeout"
 
 [Links]
-  API = "https://www.dnspod.com/docs/index.html"
+  API = "https://docs.dnspod.com/api/"
   GoClient = "https://github.com/nrdcg/dnspod-go"

providers/dns/dnspod/dnspod_test.go

@@ -43,7 +43,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -78,7 +78,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/dode/dode_test.go

@@ -43,7 +43,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -77,7 +77,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/domeneshop/domeneshop_test.go

@@ -63,7 +63,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -113,7 +113,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/dreamhost/dreamhost_test.go

@@ -69,7 +69,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				assert.NoError(t, err)
 				assert.NotNil(t, p)
 			} else {
@@ -102,7 +102,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				assert.NoError(t, err)
 				assert.NotNil(t, p)
 			} else {

providers/dns/duckdns/client.go

@@ -18,7 +18,7 @@ func (d *DNSProvider) updateTxtRecord(domain, token, txt string, clear bool) err
 	u, _ := url.Parse("https://www.duckdns.org/update")
 
 	mainDomain := getMainDomain(domain)
-	if len(mainDomain) == 0 {
+	if mainDomain == "" {
 		return fmt.Errorf("unable to find the main domain for: %s", domain)
 	}
 

providers/dns/duckdns/duckdns_test.go

@@ -44,7 +44,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -78,7 +78,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/dyn/client.go

@@ -62,7 +62,7 @@ func (d *DNSProvider) login() error {
 
 // Destroys Dyn Session.
 func (d *DNSProvider) logout() error {
-	if len(d.token) == 0 {
+	if d.token == "" {
 		// nothing to do
 		return nil
 	}

providers/dns/dyn/dyn_test.go

@@ -77,7 +77,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -138,7 +138,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/dynu/dynu_test.go

@@ -44,7 +44,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -79,7 +79,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/dynu/internal/client.go

@@ -122,7 +122,7 @@ func (c Client) GetRootDomain(hostname string) (*DNSHostname, error) {
 }
 
 // doRetry the API is really unstable so we need to retry on EOF.
-func (c Client) doRetry(method, url string, body []byte, data interface{}) error {
+func (c Client) doRetry(method, uri string, body []byte, data interface{}) error {
 	var resp *http.Response
 
 	ctx, cancel := context.WithCancel(context.Background())
@@ -133,7 +133,7 @@ func (c Client) doRetry(method, url string, body []byte, data interface{}) error
 			reqBody = bytes.NewReader(body)
 		}
 
-		req, err := http.NewRequest(method, url, reqBody)
+		req, err := http.NewRequest(method, uri, reqBody)
 		if err != nil {
 			return err
 		}

providers/dns/easydns/client.go

@@ -51,7 +51,7 @@ func (d *DNSProvider) deleteRecord(domain, recordID string) error {
 	return d.doRequest(http.MethodDelete, pathDelete, nil, nil)
 }
 
-func (d *DNSProvider) doRequest(method, path string, requestMsg, responseMsg interface{}) error {
+func (d *DNSProvider) doRequest(method, resource string, requestMsg, responseMsg interface{}) error {
 	reqBody := &bytes.Buffer{}
 	if requestMsg != nil {
 		err := json.NewEncoder(reqBody).Encode(requestMsg)
@@ -60,7 +60,7 @@ func (d *DNSProvider) doRequest(method, path string, requestMsg, responseMsg int
 		}
 	}
 
-	endpoint, err := d.config.Endpoint.Parse(path + "?format=json")
+	endpoint, err := d.config.Endpoint.Parse(resource + "?format=json")
 	if err != nil {
 		return err
 	}

providers/dns/easydns/easydns_test.go

@@ -82,7 +82,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -131,7 +131,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 		t.Run(test.desc, func(t *testing.T) {
 			p, err := NewDNSProviderConfig(test.config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/exoscale/exoscale_test.go

@@ -64,7 +64,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -112,7 +112,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/gandi/gandi_test.go

@@ -45,7 +45,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -81,7 +81,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/gandiv5/gandiv5_test.go

@@ -45,7 +45,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -80,7 +80,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/gcloud/googlecloud_test.go

@@ -90,7 +90,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -130,7 +130,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/glesys/glesys_test.go

@@ -62,7 +62,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -112,7 +112,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/godaddy/godaddy_test.go

@@ -62,7 +62,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -109,7 +109,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/hetzner/hetzner_test.go

@@ -43,7 +43,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -87,7 +87,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/hostingde/hostingde_test.go

@@ -63,7 +63,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -111,7 +111,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/httpreq/httpreq_test.go

@@ -52,7 +52,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -86,7 +86,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/hurricane/hurricane_test.go

@@ -61,7 +61,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -103,7 +103,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/hyperone/hyperone_test.go

@@ -55,7 +55,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -106,7 +106,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/iij/iij.go

@@ -236,7 +236,7 @@ func splitDomain(domain string, zones []string) (string, string, error) {
 		}
 	}
 
-	if len(owner) == 0 {
+	if owner == "" {
 		return "", "", fmt.Errorf("%s not found", domain)
 	}
 

providers/dns/iij/iij_test.go

@@ -77,7 +77,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -139,7 +139,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/infomaniak/infomaniak_test.go

@@ -45,7 +45,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -82,7 +82,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/inwx/inwx_test.go

@@ -66,7 +66,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -104,7 +104,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/ionos/ionos_test.go

@@ -43,7 +43,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -88,7 +88,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/joker/provider_dmapi.go

@@ -26,7 +26,7 @@ func newDmapiProvider() (*dmapiProvider, error) {
 		var errU error
 		values, errU = env.Get(EnvUsername, EnvPassword)
 		if errU != nil {
-			// nolint:errorlint
+			// nolint:errorlint // false-positive
 			return nil, fmt.Errorf("joker: %v or %v", errU, err)
 		}
 	}

providers/dns/linode/linode.go

@@ -84,7 +84,7 @@ func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
 		return nil, errors.New("linode: the configuration of the DNS provider is nil")
 	}
 
-	if len(config.Token) == 0 {
+	if config.Token == "" {
 		return nil, errors.New("linode: Linode Access Token missing")
 	}
 

providers/dns/linode/linode_test.go

@@ -87,7 +87,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -122,7 +122,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -214,7 +214,7 @@ func TestDNSProvider_Present(t *testing.T) {
 			p.client.SetBaseURL(server.URL)
 
 			err = p.Present(domain, "", keyAuth)
-			if len(test.expectedError) == 0 {
+			if test.expectedError == "" {
 				assert.NoError(t, err)
 			} else {
 				assert.EqualError(t, err, test.expectedError)
@@ -329,7 +329,7 @@ func TestDNSProvider_CleanUp(t *testing.T) {
 			p.client.SetBaseURL(server.URL)
 
 			err = p.CleanUp(domain, "", keyAuth)
-			if len(test.expectedError) == 0 {
+			if test.expectedError == "" {
 				assert.NoError(t, err)
 			} else {
 				assert.EqualError(t, err, test.expectedError)

providers/dns/liquidweb/liquidweb_test.go

@@ -93,7 +93,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -159,7 +159,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/loopia/internal/client_test.go

@@ -59,7 +59,7 @@ func TestClient_AddZoneRecord(t *testing.T) {
 			client.BaseURL = serverURL + "/"
 
 			err := client.AddTXTRecord(test.domain, exampleSubDomain, 123, "TXTrecord")
-			if len(test.err) == 0 {
+			if test.err == "" {
 				require.NoError(t, err)
 			} else {
 				require.Error(t, err)
@@ -116,7 +116,7 @@ func TestClient_RemoveSubdomain(t *testing.T) {
 			client.BaseURL = serverURL + "/"
 
 			err := client.RemoveSubdomain(test.domain, exampleSubDomain)
-			if len(test.err) == 0 {
+			if test.err == "" {
 				require.NoError(t, err)
 			} else {
 				require.Error(t, err)
@@ -173,7 +173,7 @@ func TestClient_RemoveZoneRecord(t *testing.T) {
 			client.BaseURL = serverURL + "/"
 
 			err := client.RemoveTXTRecord(test.domain, exampleSubDomain, 12345678)
-			if len(test.err) == 0 {
+			if test.err == "" {
 				require.NoError(t, err)
 			} else {
 				require.Error(t, err)

providers/dns/loopia/loopia_test.go

@@ -108,7 +108,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expectedError) == 0 {
+			if test.expectedError == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 			} else {
@@ -173,7 +173,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 		t.Run(test.desc, func(t *testing.T) {
 			p, err := NewDNSProviderConfig(test.config)
 
-			if len(test.expectedError) == 0 {
+			if test.expectedError == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				assert.Equal(t, test.expectedTTL, p.config.TTL)

providers/dns/luadns/luadns_test.go

@@ -64,7 +64,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -125,7 +125,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/mydnsjp/mydnsjp_test.go

@@ -62,7 +62,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				assert.NoError(t, err)
 				assert.NotNil(t, p)
 			} else {
@@ -108,7 +108,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				assert.NoError(t, err)
 				assert.NotNil(t, p)
 			} else {

providers/dns/mythicbeasts/mythicbeasts_test.go

@@ -63,7 +63,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -113,7 +113,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/namecheap/client.go

@@ -124,11 +124,7 @@ func (d *DNSProvider) do(req *http.Request, out interface{}) error {
 		return err
 	}
 
-	if err := xml.Unmarshal(body, out); err != nil {
-		return err
-	}
-
-	return nil
+	return xml.Unmarshal(body, out)
 }
 
 func (d *DNSProvider) newRequestGet(cmd string, params ...func(url.Values)) (*http.Request, error) {

providers/dns/namecheap/namecheap.go

@@ -125,7 +125,7 @@ func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
 		return nil, errors.New("namecheap: credentials missing")
 	}
 
-	if len(config.ClientIP) == 0 {
+	if config.ClientIP == "" {
 		clientIP, err := getClientIP(config.HTTPClient, config.Debug)
 		if err != nil {
 			return nil, fmt.Errorf("namecheap: %w", err)

providers/dns/namecheap/namecheap_test.go

@@ -223,9 +223,9 @@ func mockServer(t *testing.T, tc *testCase) string {
 	return server.URL
 }
 
-func mockDNSProvider(url string) *DNSProvider {
+func mockDNSProvider(baseURL string) *DNSProvider {
 	config := NewDefaultConfig()
-	config.BaseURL = url
+	config.BaseURL = baseURL
 	config.APIUser = envTestUser
 	config.APIKey = envTestKey
 	config.ClientIP = envTestClientIP

providers/dns/namedotcom/namedotcom_test.go

@@ -63,7 +63,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -113,7 +113,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/namesilo/namesilo_test.go

@@ -51,7 +51,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -95,7 +95,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/netcup/netcup_test.go

@@ -78,7 +78,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -140,7 +140,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/netlify/netlify_test.go

@@ -42,7 +42,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -76,7 +76,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/nifcloud/internal/client.go

@@ -89,7 +89,7 @@ type ChangeInfo struct {
 
 // NewClient Creates a new client of NIFCLOUD DNS.
 func NewClient(accessKey, secretKey string) (*Client, error) {
-	if len(accessKey) == 0 || len(secretKey) == 0 {
+	if accessKey == "" || secretKey == "" {
 		return nil, errors.New("credentials missing")
 	}
 

providers/dns/nifcloud/nifcloud_test.go

@@ -63,7 +63,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -111,7 +111,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/njalla/njalla_test.go

@@ -42,7 +42,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -77,7 +77,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/ns1/ns1_test.go

@@ -44,7 +44,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -79,7 +79,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/oraclecloud/oraclecloud_test.go

@@ -185,7 +185,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -230,7 +230,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/ovh/ovh_test.go

@@ -103,7 +103,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -188,7 +188,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/pdns/pdns_test.go

@@ -63,7 +63,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -117,7 +117,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/regru/regru_test.go

@@ -63,7 +63,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -112,7 +112,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/rfc2136/rfc2136.go

@@ -105,8 +105,7 @@ func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
 		}
 	}
 
-	if len(config.TSIGKey) == 0 && len(config.TSIGSecret) > 0 ||
-		len(config.TSIGKey) > 0 && len(config.TSIGSecret) == 0 {
+	if config.TSIGKey == "" || config.TSIGSecret == "" {
 		config.TSIGKey = ""
 		config.TSIGSecret = ""
 	}

providers/dns/rimuhosting/rimuhosting_test.go

@@ -42,7 +42,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -80,7 +80,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/route53/route53.go

@@ -286,7 +286,7 @@ func (d *DNSProvider) getHostedZoneID(fqdn string) (string, error) {
 		}
 	}
 
-	if len(hostedZoneID) == 0 {
+	if hostedZoneID == "" {
 		return "", fmt.Errorf("zone %s not found for domain %s", authZone, fqdn)
 	}
 

providers/dns/sakuracloud/sakuracloud_test.go

@@ -63,7 +63,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -111,7 +111,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/scaleway/scaleway_test.go

@@ -44,7 +44,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				assert.NotNil(t, p.config)
@@ -84,7 +84,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				assert.NotNil(t, p.config)

providers/dns/selectel/selectel_test.go

@@ -42,7 +42,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				assert.NotNil(t, p.config)
@@ -88,7 +88,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				assert.NotNil(t, p.config)

providers/dns/servercow/servercow_test.go

@@ -63,7 +63,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -112,7 +112,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)

providers/dns/stackpath/stackpath.go

@@ -84,11 +84,11 @@ func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
 		return nil, errors.New("stackpath: the configuration of the DNS provider is nil")
 	}
 
-	if len(config.ClientID) == 0 || len(config.ClientSecret) == 0 {
+	if config.ClientID == "" || config.ClientSecret == "" {
 		return nil, errors.New("stackpath: credentials missing")
 	}
 
-	if len(config.StackID) == 0 {
+	if config.StackID == "" {
 		return nil, errors.New("stackpath: stack id missing")
 	}
 

providers/dns/stackpath/stackpath_test.go

@@ -81,7 +81,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				assert.NotNil(t, p)
 			} else {

providers/dns/transip/transip_test.go

@@ -70,7 +70,7 @@ func TestNewDNSProvider(t *testing.T) {
 
 			p, err := NewDNSProvider()
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)
@@ -135,7 +135,7 @@ func TestNewDNSProviderConfig(t *testing.T) {
 
 			p, err := NewDNSProviderConfig(config)
 
-			if len(test.expected) == 0 {
+			if test.expected == "" {
 				require.NoError(t, err)
 				require.NotNil(t, p)
 				require.NotNil(t, p.config)