v0.3.8

internal/ads/system.go

@@ -0,0 +1,64 @@
+package ads
+
+import (
+	"os"
+	"os/exec"
+	"runtime"
+	"strings"
+	"time"
+)
+
+func displayOSName() string {
+	switch runtime.GOOS {
+	case "darwin":
+		return "macOS"
+	case "linux":
+		return "Linux"
+	default:
+		return "Windows"
+	}
+}
+
+func displayOSVersion() string {
+	switch runtime.GOOS {
+	case "darwin":
+		return commandOutput(2*time.Second, "sw_vers", "-productVersion")
+	case "linux":
+		if version := linuxPrettyName(); version != "" {
+			return version
+		}
+		return commandOutput(2*time.Second, "uname", "-r")
+	default:
+		return ""
+	}
+}
+
+func commandOutput(timeout time.Duration, name string, args ...string) string {
+	cmd := exec.Command(name, args...)
+	timer := time.AfterFunc(timeout, func() {
+		if cmd.Process != nil {
+			_ = cmd.Process.Kill()
+		}
+	})
+	defer timer.Stop()
+	output, err := cmd.Output()
+	if err != nil {
+		return ""
+	}
+	return strings.TrimSpace(string(output))
+}
+
+func linuxPrettyName() string {
+	data, err := os.ReadFile("/etc/os-release")
+	if err != nil {
+		return ""
+	}
+	for _, line := range strings.Split(string(data), "\n") {
+		key, value, ok := strings.Cut(line, "=")
+		if !ok || strings.TrimSpace(key) != "PRETTY_NAME" {
+			continue
+		}
+		return strings.Trim(strings.TrimSpace(value), `"`)
+	}
+	return ""
+}