remote-challenge-sync-airbus: Add inotify watcher

remote/challenge-sync-airbus/timestamp.go

@@ -1,50 +1,42 @@
 package main
 
 import (
-	"fmt"
+	"encoding/json"
 	"os"
 	"time"
 )
 
-func loadTS(tspath string) (timestamp *time.Time, err error) {
+func loadTS(tspath string) (timestamp map[AirbusUserId]time.Time, err error) {
+	var fd *os.File
 	if _, err = os.Stat(tspath); os.IsNotExist(err) {
-		init := time.Unix(0, 0)
-		timestamp = &init
-
+		timestamp = map[AirbusUserId]time.Time{}
 		err = saveTS(tspath, timestamp)
 		return
-	}
+	} else if fd, err = os.Open(tspath); err != nil {
+		return nil, err
+	} else {
+		defer fd.Close()
+		jdec := json.NewDecoder(fd)
+
+		if err = jdec.Decode(&timestamp); err != nil {
+			return
+		}
 
-	var fd *os.File
-	fd, err = os.Open(tspath)
-	if err != nil {
 		return
 	}
-	defer fd.Close()
-
-	var init int64
-	_, err = fmt.Fscanf(fd, "%d", &init)
-	if err != nil {
-		return
-	}
-
-	tmp := time.Unix(init, 0)
-	timestamp = &tmp
-
-	return
 }
 
-func saveTS(tspath string, ts *time.Time) error {
-	fd, err := os.Create(tspath)
-	if err != nil {
+func saveTS(tspath string, ts map[AirbusUserId]time.Time) error {
+	if fd, err := os.Create(tspath); err != nil {
 		return err
-	}
-	defer fd.Close()
+	} else {
+		defer fd.Close()
+		jenc := json.NewEncoder(fd)
 
-	_, err = fmt.Fprintf(fd, "%d", ts.Unix())
-	if err != nil {
-		return err
-	}
+		if err := jenc.Encode(ts); err != nil {
+			return err
+		}
 
-	return nil
+		return nil
+	}
 }