fix: split isAdmin to platform files

spicetify.go

@@ -17,7 +17,7 @@ import (
 	"github.com/spicetify/cli/src/cmd"
 	spotifystatus "github.com/spicetify/cli/src/status/spotify"
 	"github.com/spicetify/cli/src/utils"
-	"golang.org/x/sys/windows"
+	"github.com/spicetify/cli/src/utils/isAdmin"
 )
 
 var (
@@ -36,36 +36,6 @@ var (
 	bypassAdminCheck = false
 )
 
-func isAdmin(bypassAdminCheck bool) bool {
-	if bypassAdminCheck {
-		return false
-	}
-
-	switch runtime.GOOS {
-	case "windows":
-		var sid *windows.SID
-		err := windows.AllocateAndInitializeSid(
-			&windows.SECURITY_NT_AUTHORITY,
-			2,
-			windows.SECURITY_BUILTIN_DOMAIN_RID,
-			windows.DOMAIN_ALIAS_RID_ADMINS,
-			0, 0, 0, 0, 0, 0,
-			&sid)
-		if err != nil {
-			return false
-		}
-		defer windows.FreeSid(sid)
-
-		token := windows.Token(0)
-		member, err := token.IsMember(sid)
-		return err == nil && member
-
-	case "linux", "darwin":
-		return os.Geteuid() == 0
-	}
-	return false
-}
-
 func init() {
 	if runtime.GOOS != "windows" &&
 		runtime.GOOS != "darwin" &&
@@ -144,7 +114,7 @@ func init() {
 		os.Stdout = nil
 	}
 
-	if isAdmin(bypassAdminCheck) {
+	if isAdmin.Check(bypassAdminCheck) {
 		utils.PrintError("Spicetify should not be run with administrator/root privileges")
 		utils.PrintError("Running as admin can cause Spotify to show a black/blank window after applying spicetify")
 		utils.PrintError("This happens because Spotify (running as a normal user) can't access files modified with admin privileges")

src/utils/isAdmin/unix.go

@@ -0,0 +1,13 @@
+//go:build !windows
+// +build !windows
+
+package isAdmin
+
+import "os"
+
+func Check(bypassAdminCheck bool) bool {
+	if bypassAdminCheck {
+		return false
+	}
+	return os.Geteuid() == 0
+} 

src/utils/isAdmin/windows.go

@@ -0,0 +1,31 @@
+//go:build windows
+// +build windows
+
+package isAdmin
+
+import (
+	"golang.org/x/sys/windows"
+)
+
+func Check(bypassAdminCheck bool) bool {
+	if bypassAdminCheck {
+		return false
+	}
+
+	var sid *windows.SID
+	err := windows.AllocateAndInitializeSid(
+		&windows.SECURITY_NT_AUTHORITY,
+		2,
+		windows.SECURITY_BUILTIN_DOMAIN_RID,
+		windows.DOMAIN_ALIAS_RID_ADMINS,
+		0, 0, 0, 0, 0, 0,
+		&sid)
+	if err != nil {
+		return false
+	}
+	defer windows.FreeSid(sid)
+
+	token := windows.Token(0)
+	member, err := token.IsMember(sid)
+	return err == nil && member
+}