Add autostart status and release builds

src/core/autostart_linux.go

@@ -0,0 +1,89 @@
+//go:build linux
+
+package core
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+)
+
+const autostartUnitName = "pysentry.service"
+
+func SetAutostart(enabled bool, executablePath string) error {
+	unitDir, err := userSystemdDir()
+	if err != nil {
+		return err
+	}
+	unitPath := filepath.Join(unitDir, autostartUnitName)
+
+	if enabled {
+		if err := os.MkdirAll(unitDir, 0o755); err != nil {
+			return err
+		}
+		unit := fmt.Sprintf(`[Unit]
+Description=PySentry desktop scheduler
+
+[Service]
+ExecStart=%s
+Restart=on-failure
+
+[Install]
+WantedBy=default.target
+`, executablePath)
+		if err := os.WriteFile(unitPath, []byte(unit), 0o644); err != nil {
+			return err
+		}
+		if err := exec.Command("systemctl", "--user", "daemon-reload").Run(); err != nil {
+			return err
+		}
+		return exec.Command("systemctl", "--user", "enable", "--now", autostartUnitName).Run()
+	}
+
+	_ = exec.Command("systemctl", "--user", "disable", "--now", autostartUnitName).Run()
+	if err := os.Remove(unitPath); err != nil && !os.IsNotExist(err) {
+		return err
+	}
+	return exec.Command("systemctl", "--user", "daemon-reload").Run()
+}
+
+func AutostartStatus(expectedEnabled bool, executablePath string) (bool, string) {
+	unitDir, err := userSystemdDir()
+	if err != nil {
+		return false, "Cannot resolve user systemd directory"
+	}
+	unitPath := filepath.Join(unitDir, autostartUnitName)
+	data, readErr := os.ReadFile(unitPath)
+	enabledErr := exec.Command("systemctl", "--user", "is-enabled", "--quiet", autostartUnitName).Run()
+
+	if !expectedEnabled {
+		if os.IsNotExist(readErr) && enabledErr != nil {
+			return true, "Autostart is off"
+		}
+		return false, "Autostart unit exists while setting is off"
+	}
+	if readErr != nil {
+		return false, "Autostart unit is missing"
+	}
+	if !strings.Contains(string(data), executablePath) {
+		return false, "Autostart unit points to another executable"
+	}
+	if enabledErr != nil {
+		return false, "Autostart unit is not enabled"
+	}
+	return true, "Autostart is configured"
+}
+
+func userSystemdDir() (string, error) {
+	configHome := os.Getenv("XDG_CONFIG_HOME")
+	if configHome == "" {
+		home, err := os.UserHomeDir()
+		if err != nil {
+			return "", err
+		}
+		configHome = filepath.Join(home, ".config")
+	}
+	return filepath.Join(configHome, "systemd", "user"), nil
+}