Update linting

.golangci.yml

@@ -0,0 +1,29 @@
+---
+linters:
+  enable:
+    - asciicheck
+    - bodyclose
+    - dogsled
+    - dupl
+    - exhaustive
+    - gochecknoinits
+    - gocognit
+    - gocritic
+    - gocyclo
+    - goerr113
+    - gofumpt
+    - goimports
+    - gomnd
+    - goprintffuncname
+    - gosec
+    - interfacer
+    - maligned
+    - misspell
+    - nakedret
+    - nestif
+    - nlreturn
+    - noctx
+    - unparam
+    - wsl
+  disable:
+    - gochecknoglobals

auth.go

@@ -14,11 +14,17 @@ import (
 )
 
 var (
-	// These are set via build flags but can be overriden via environment variables.
+	// These are set via build flags but can be overridden via environment variables.
 	defaultClientID     = ""
 	defaultClientSecret = ""
 )
 
+const (
+	httpReadTimeout  = 5 * time.Second
+	httpWriteTimeout = 10 * time.Second
+	httpIdleTimeout  = 120 * time.Second
+)
+
 type slackApp struct {
 	clientID, clientSecret, redirectURI string
 	scopes, userScopes                  []string
@@ -45,9 +51,9 @@ func (app slackApp) listenForCode() (string, error) {
 	// Also, should generate TLS certificate to use since https is a required scheme
 	server := http.Server{
 		Addr:         app.listenHost,
-		ReadTimeout:  5 * time.Second,
+		ReadTimeout:  httpReadTimeout,
-		WriteTimeout: 10 * time.Second,
+		WriteTimeout: httpWriteTimeout,
-		IdleTimeout:  120 * time.Second,
+		IdleTimeout:  httpIdleTimeout,
 	}
 
 	http.HandleFunc(app.listenPath, func(w http.ResponseWriter, r *http.Request) {

config.go

@@ -10,9 +10,7 @@ import (
 	"path/filepath"
 )
 
-var (
+var errUnknownDomain = errors.New("unknown domain")
-	errUnknownDomain = errors.New("unknown domain")
-)
 
 type configData struct {
 	DefaultDomain string
@@ -29,7 +27,7 @@ func getConfigFilePath(filename string) (string, error) {
 	}
 
 	configDir = filepath.Join(configDir, configApplicationName)
-	_ = os.MkdirAll(configDir, 0755)
+	_ = os.MkdirAll(configDir, 0o755)
 	configFile := filepath.Join(configDir, filename)
 
 	// Handle migration of old config file path
@@ -46,6 +44,7 @@ func getConfigFilePath(filename string) (string, error) {
 
 		if fileExists(legacyConfigFile) {
 			log.Printf("Migrating config from %s to %s\n", legacyConfigFile, configFile)
+
 			err = os.Rename(legacyConfigFile, configFile)
 			if err != nil {
 				err = fmt.Errorf(
@@ -98,7 +97,7 @@ func writeConfig(config configData) error {
 		return fmt.Errorf("failed converting config to json: %w", err)
 	}
 
-	if err = ioutil.WriteFile(configPath, contents, 0600); err != nil {
+	if err = ioutil.WriteFile(configPath, contents, 0o600); err != nil {
 		return fmt.Errorf("error writing config to file: %w", err)
 	}
 

main.go

@@ -10,23 +10,19 @@ import (
 	"github.com/slack-go/slack"
 )
 
-var (
+var version = "dev"
-	version = "dev"
-)
 
 // statusInfo contains all args passed from the command line
 type statusInfo struct {
-	// status contents
 	emoji, statusText string
 	duration          time.Duration
 	snooze            bool
+}
 
-	// domain and login management
+// commandOptions contains non-status options passed to the command
-	login, makeDefault bool
+type commandOptions struct {
+	login, makeDefault, showVersion bool
 	domain                          string
-
-	// other
-	showVersion bool
 }
 
 // getExipirationTime returns epoch time that status should expire from the duration.
@@ -74,7 +70,7 @@ func readDurationArgs(args []string) ([]string, *time.Duration) {
 }
 
 // readFlags will read all flags off the command line.
-func readFlags() statusInfo {
+func readFlags() (statusInfo, commandOptions) {
 	// Non-status flags
 	login := flag.Bool("login", false, "login to a Slack workspace")
 	domain := flag.String("domain", "", "domain to set status on")
@@ -115,7 +111,7 @@ func readFlags() statusInfo {
 			snooze:     *snooze,
 			emoji:      *emoji,
 			statusText: statusText,
-
+		}, commandOptions{
 			login:       *login,
 			domain:      *domain,
 			makeDefault: *makeDefault,
@@ -152,6 +148,7 @@ func loginAndSave(domain string) (*slack.Client, error) {
 // getClient returns a client either via the provided login or default login
 func getClient(domain string) (*slack.Client, error) {
 	var accessToken string
+
 	var err error
 
 	if domain == "" {
@@ -170,21 +167,23 @@ func getClient(domain string) (*slack.Client, error) {
 }
 
 func main() {
-	args := readFlags()
+	status, options := readFlags()
 
-	if args.showVersion {
+	if options.showVersion {
 		fmt.Println("version:", version)
+
 		return
 	}
 
 	var client *slack.Client
+
 	var err error
 
 	// If the new-auth flag is present, force an auth flow
-	if args.login {
+	if options.login {
-		client, err = loginAndSave(args.domain)
+		client, err = loginAndSave(options.domain)
 	} else {
-		client, err = getClient(args.domain)
+		client, err = getClient(options.domain)
 	}
 
 	// We encountered some error in logging in
@@ -193,21 +192,21 @@ func main() {
 		log.Fatal(fmt.Errorf("failed to get or save client: %w", err))
 	}
 
-	// If a domain is provided and asked to make deafult, save it to config
+	// If a domain is provided and asked to make default, save it to config
-	if args.makeDefault && args.domain != "" {
+	if options.makeDefault && options.domain != "" {
-		if err = saveDefaultLogin(args.domain); err != nil {
+		if err = saveDefaultLogin(options.domain); err != nil {
-			log.Fatal(fmt.Errorf("failed saving default domain %s: %w", args.domain, err))
+			log.Fatal(fmt.Errorf("failed saving default domain %s: %w", options.domain, err))
 		}
 	}
 
-	err = client.SetUserCustomStatus(args.statusText, args.emoji, args.getExpirationTime())
+	err = client.SetUserCustomStatus(status.statusText, status.emoji, status.getExpirationTime())
 	if err != nil {
 		fmt.Println("error setting status")
 		panic(err)
 	}
 
-	if args.snooze {
+	if status.snooze {
-		_, err = client.SetSnooze(int(args.duration.Minutes()))
+		_, err = client.SetSnooze(int(status.duration.Minutes()))
 		if err != nil {
 			fmt.Println("error setting snooze")
 			panic(err)