add syncing handler

Author: cenkalti

server.go

@@ -2,6 +2,7 @@ package putiosync
 
 import (
 	"context"
+	"fmt"
 	"net/http"
 	"time"
 
@@ -21,6 +22,7 @@ type httpServer struct {
 func newServer(addr string) *httpServer {
 	m := http.NewServeMux()
 	m.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { _, _ = w.Write([]byte("putio-sync")) })
+	m.HandleFunc("/syncing", func(w http.ResponseWriter, r *http.Request) { _, _ = w.Write([]byte(fmt.Sprintf("%v", syncing))) })
 	s := &httpServer{
 		srv: &http.Server{
 			Addr:         addr,

sync.go

@@ -33,6 +33,7 @@ var (
 	dirCache       *dircache.DirCache
 	tempDirPath    string
 	uploader       *tus.Uploader
+	syncing        bool
 )
 
 func Sync(ctx context.Context, config Config) error {
@@ -161,6 +162,8 @@ func syncRoots(ctx context.Context) error {
 		log.Infoln("No changes detected")
 		return nil
 	}
+	syncing = true
+	defer func() { syncing = false }()
 	for _, job := range jobs {
 		log.Infoln(job.String())
 		if cfg.DryRun {