feat: restart to apply update, privileged helper, rollback

internal/infrastructure/update/jsonRunningInfoStore.go

@@ -0,0 +1,45 @@
+package update
+
+import (
+	domain "RenewCMS/internal/domain/update"
+	"encoding/json"
+	"os"
+	"sync"
+)
+
+type JSONRunningInfoStore struct {
+	path string
+	mu   sync.Mutex
+}
+
+var _ domain.RunningInfoStore = &JSONRunningInfoStore{}
+
+func NewJSONRunningInfoStore(path string) *JSONRunningInfoStore {
+	return &JSONRunningInfoStore{path: path}
+}
+
+func (s *JSONRunningInfoStore) Write(info domain.RunningInfo) error {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	return writeJSONAtomically(s.path, info, readableFilePermissions)
+}
+
+func (s *JSONRunningInfoStore) Read() (domain.RunningInfo, bool) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	linkInfo, err := os.Lstat(s.path)
+	if err != nil || !linkInfo.Mode().IsRegular() {
+		return domain.RunningInfo{}, false
+	}
+	content, err := os.ReadFile(s.path)
+	if err != nil {
+		return domain.RunningInfo{}, false
+	}
+	var info domain.RunningInfo
+	if err := json.Unmarshal(content, &info); err != nil || info.Version == "" || info.Pid == 0 {
+		return domain.RunningInfo{}, false
+	}
+	return info, true
+}