Finish unfinished ProcessRemoteEvent functionality

client/asink.go

@@ -168,7 +168,9 @@ func ProcessRemoteEvent(globals AsinkGlobals, event *asink.Event) {
 	}
 
 	//Download event
-	if event.IsUpdate() && (latestLocal == nil || event.Hash != latestLocal.Hash) {
+	if event.IsUpdate() {
+		if latestLocal == nil || event.Hash != latestLocal.Hash {
+
 			outfile, err := ioutil.TempFile(globals.tmpDir, "asink")
 			if err != nil {
 				panic(err) //TODO handle sensibly
@@ -181,7 +183,8 @@ func ProcessRemoteEvent(globals AsinkGlobals, event *asink.Event) {
 			}
 
 			//rename to local hashed filename
-		err = os.Rename(tmpfilename, path.Join(globals.cacheDir, event.Hash))
+			hashedFilename := path.Join(globals.cacheDir, event.Hash)
+			err = os.Rename(tmpfilename, hashedFilename)
 			if err != nil {
 				err := os.Remove(tmpfilename)
 				if err != nil {
@@ -189,6 +192,21 @@ func ProcessRemoteEvent(globals AsinkGlobals, event *asink.Event) {
 				}
 				panic(err)
 			}
+
+			//TODO copy hashed file to another tmp, then rename it to the actual file.
+			tmpfilename, err = util.CopyToTmp(hashedFilename, globals.tmpDir)
+			if err != nil {
+				panic(err)
+			}
+			err = os.Rename(tmpfilename, event.Path)
+			if err != nil {
+				err := os.Remove(tmpfilename)
+				if err != nil {
+					panic(err)
+				}
+				panic(err)
+			}
+		}
 	} else {
 		//intentionally ignore errors in case this file has been deleted out from under us
 		os.Remove(event.Path)