refactor(install): improve resource cleanup and remove unused funcs

Signed-off-by: Rodney Osodo <socials@rodneyosodo.com>

install/config.go

@@ -99,11 +99,6 @@ func ReadAppConfig(configPath string) (*AppConfigValues, error) {
 	return values, nil
 }
 
-// findPattern finds the start of a pattern in a string
-func findPattern(s, pattern string) int {
-	return bytes.Index([]byte(s), []byte(pattern))
-}
-
 func copyDockerService(sourceFile, destFile, serviceName string) error {
 	// Read source file
 	sourceData, err := os.ReadFile(sourceFile)
@@ -187,7 +182,7 @@ func backupConfig() error {
 	return nil
 }
 
-func MarshalYAMLWithIndent(data any, indent int) ([]byte, error) {
+func MarshalYAMLWithIndent(data any, indent int) (resp []byte, err error) {
 	buffer := new(bytes.Buffer)
 	encoder := yaml.NewEncoder(buffer)
 	encoder.SetIndent(indent)
@@ -196,7 +191,12 @@ func MarshalYAMLWithIndent(data any, indent int) ([]byte, error) {
 		return nil, err
 	}
 
-	defer encoder.Close()
+	defer func() {
+		if cerr := encoder.Close(); cerr != nil && err == nil {
+			err = cerr
+		}
+	}()
+
 	return buffer.Bytes(), nil
 }
 

install/input.go

@@ -85,33 +85,6 @@ func readString(prompt string, defaultValue string) string {
 	return value
 }
 
-func readStringNoDefault(prompt string) string {
-	var value string
-
-	for {
-		input := huh.NewInput().
-			Title(prompt).
-			Value(&value).
-			Validate(func(s string) error {
-				if s == "" {
-					return fmt.Errorf("this field is required")
-				}
-				return nil
-			})
-
-		err := runField(input)
-		handleAbort(err)
-
-		if value != "" {
-			// Print the answer so it remains visible in terminal history
-			if !isAccessibleMode() {
-				fmt.Printf("%s: %s\n", prompt, value)
-			}
-			return value
-		}
-	}
-}
-
 func readPassword(prompt string) string {
 	var value string
 

install/main.go

@@ -8,7 +8,6 @@ import (
 	"io"
 	"io/fs"
 	"net"
-	"net/http"
 	"net/url"
 	"os"
 	"os/exec"
@@ -430,9 +429,9 @@ func createConfigFiles(config Config) error {
 	}
 
 	// Walk through all embedded files
-	err := fs.WalkDir(configFiles, "config", func(path string, d fs.DirEntry, err error) error {
-		if err != nil {
-			return err
+	err := fs.WalkDir(configFiles, "config", func(path string, d fs.DirEntry, walkErr error) (err error) {
+		if walkErr != nil {
+			return walkErr
 		}
 
 		// Skip the root fs directory itself
@@ -483,7 +482,11 @@ func createConfigFiles(config Config) error {
 		if err != nil {
 			return fmt.Errorf("failed to create %s: %v", path, err)
 		}
-		defer outFile.Close()
+		defer func() {
+			if cerr := outFile.Close(); cerr != nil && err == nil {
+				err = cerr
+			}
+		}()
 
 		// Execute template
 		if err := tmpl.Execute(outFile, config); err != nil {
@@ -499,18 +502,26 @@ func createConfigFiles(config Config) error {
 	return nil
 }
 
-func copyFile(src, dst string) error {
+func copyFile(src, dst string) (err error) {
 	source, err := os.Open(src)
 	if err != nil {
 		return err
 	}
-	defer source.Close()
+	defer func() {
+		if cerr := source.Close(); cerr != nil && err == nil {
+			err = cerr
+		}
+	}()
 
 	destination, err := os.Create(dst)
 	if err != nil {
 		return err
 	}
-	defer destination.Close()
+	defer func() {
+		if cerr := destination.Close(); cerr != nil && err == nil {
+			err = cerr
+		}
+	}()
 
 	_, err = io.Copy(destination, source)
 	return err
@@ -622,32 +633,6 @@ func generateRandomSecretKey() string {
 	return base64.StdEncoding.EncodeToString(secret)
 }
 
-func getPublicIP() string {
-	client := &http.Client{
-		Timeout: 10 * time.Second,
-	}
-
-	resp, err := client.Get("https://ifconfig.io/ip")
-	if err != nil {
-		return ""
-	}
-	defer resp.Body.Close()
-
-	body, err := io.ReadAll(resp.Body)
-	if err != nil {
-		return ""
-	}
-
-	ip := strings.TrimSpace(string(body))
-
-	// Validate that it's a valid IP address
-	if net.ParseIP(ip) != nil {
-		return ip
-	}
-
-	return ""
-}
-
 // Run external commands with stdio/stderr attached.
 func run(name string, args ...string) error {
 	cmd := exec.Command(name, args...)