Added missing check for resolvectl

CHANGELOG.md

@@ -8,6 +8,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 - install scripts for Linux, macOS and Windows
+- check if `resolvectl` is available for `vpn` commands
+
+### Fixed
+- commands will now exit with exit code 1 for all error types
 
 ## [v1.0.20] - 2024-07-02
 

src/i18n/en.go

@@ -223,6 +223,7 @@ at https://docs.zerops.io/references/cli for further details.`,
 
 	// vpn shared
 	VpnWgQuickIsNotInstalled:        "wg-quick is not installed, please visit https://www.wireguard.com/install/",
+	VpnResolveCtlIsNotInstalled:     "resolvectl is not installed, please install systemd-resolved or equivalent for your distribution",
 	VpnWgQuickIsNotInstalledWindows: "wireguard is not installed, please visit https://www.wireguard.com/install/",
 
 	// flags description

src/i18n/i18n.go

@@ -203,6 +203,7 @@ const (
 
 	// vpn shared
 	VpnWgQuickIsNotInstalled        = "VpnWgQuickIsNotInstalled"
+	VpnResolveCtlIsNotInstalled     = "VpnResolveCtlIsNotInstalled"
 	VpnWgQuickIsNotInstalledWindows = "VpnWgQuickIsNotInstalledWindows"
 
 	// flags description

src/wg/linux.go

@@ -17,11 +17,13 @@ import (
 )
 
 func CheckWgInstallation() error {
-	_, err := exec.LookPath("wg-quick")
-	if err != nil {
+	if _, err := exec.LookPath("wg-quick"); err != nil {
 		return errors.New(i18n.T(i18n.VpnWgQuickIsNotInstalled))
 	}
-
+	// Debian does not have it by default anymore
+	if _, err := exec.LookPath("resolvectl"); err != nil {
+		return errors.New(i18n.T(i18n.VpnResolveCtlIsNotInstalled))
+	}
 	return nil
 }