feature(manager): skeleton for worker-manager communication

internal/msg.go

@@ -0,0 +1,42 @@
+package internal
+
+import "time"
+
+// A StatusUpdateMsg represents a msg when
+// a worker has done syncing
+type StatusUpdateMsg struct {
+	Name       string     `json:"name"`
+	Worker     string     `json:"worker"`
+	IsMaster   bool       `json:"is_master"`
+	Status     SyncStatus `json:"status"`
+	LastUpdate time.Time  `json:"last_update"`
+	Upstream   string     `json:"upstream"`
+	Size       string     `json:"size"`
+}
+
+// A WorkerInfoMsg is
+type WorkerInfoMsg struct {
+	Name string `json:"name"`
+}
+
+type CmdVerb uint8
+
+const (
+	CmdStart   CmdVerb = iota
+	CmdStop            // stop syncing keep the job
+	CmdDisable         // disable the job (stops goroutine)
+	CmdRestart         // restart syncing
+	CmdPing            // ensure the goroutine is alive
+)
+
+type WorkerCmd struct {
+	Cmd  CmdVerb  `json:"cmd"`
+	Args []string `json:"args"`
+}
+
+type ClientCmd struct {
+	Cmd      CmdVerb  `json:"cmd"`
+	MirrorID string   `json:"mirror_id"`
+	WorkerID string   `json:"worker_id"`
+	Args     []string `json:"args"`
+}

manager/db.go

@@ -0,0 +1,23 @@
+package manager
+
+import "github.com/boltdb/bolt"
+
+type dbAdapter interface {
+	GetWorker(workerID string)
+	UpdateMirrorStatus(workerID, mirrorID string, status mirrorStatus)
+	GetMirrorStatus(workerID, mirrorID string)
+	GetMirrorStatusList(workerID string)
+	Close()
+}
+
+type boltAdapter struct {
+	db     *bolt.DB
+	dbFile string
+}
+
+func (b *boltAdapter) Close() error {
+	if b.db != nil {
+		return b.db.Close()
+	}
+	return nil
+}

manager/server.go

@@ -23,14 +23,20 @@ func makeHTTPServer(debug bool) *gin.Engine {
 	r.GET("/ping", func(c *gin.Context) {
 		c.JSON(http.StatusOK, gin.H{"msg": "pong"})
 	})
-	// List jobs, status page
+	// list jobs, status page
 	r.GET("/jobs", func(c *gin.Context) {})
 	// worker online
 	r.POST("/workers/:name", func(c *gin.Context) {})
-	// post job list
-	r.POST("/workers/:name/jobs", func(c *gin.Context) {})
+	// get job list
+	r.GET("/workers/:name/jobs", func(c *gin.Context) {})
 	// post job status
 	r.POST("/workers/:name/jobs/:job", func(c *gin.Context) {})
 
+	// worker command polling
+	r.GET("/workers/:name/cmd_stream", func(c *gin.Context) {})
+
+	// for tunasynctl to post commands
+	r.POST("/cmd/", func(c *gin.Context) {})
+
 	return r
 }