From 8ec032e992e517f453161c92ce927bf2927cae9c Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@helsinki.at>
Date: Thu, 4 Aug 2016 02:41:21 +0200
Subject: use cancel to abort on signal


diff --git a/src/pool-import/main.go b/src/pool-import/main.go
index 4670815..36300bf 100644
--- a/src/pool-import/main.go
+++ b/src/pool-import/main.go
@@ -26,7 +26,9 @@ import (
 	"log"
 	"net/http"
 	"os"
+	"os/signal"
 	"sort"
+	"syscall"
 	"time"
 
 	"code.helsinki.at/rhrd-go/rddb"
@@ -44,7 +46,7 @@ func Done(res rhimport.Result, userdata interface{}) bool {
 	return true
 }
 
-func HandleCart(cart uint, cut uint, artist, album, title, dstgroup string, sessions *rhimport.SessionStore, conf *rhimport.Config, stdlog, dbglog *log.Logger) bool {
+func HandleCart(cart uint, cut uint, artist, album, title, dstgroup string, sessions *rhimport.SessionStore, conf *rhimport.Config, stdlog, dbglog *log.Logger, c <-chan os.Signal) int {
 	filename := fmt.Sprintf("%06d_%03d.wav", cart, cut)
 
 	stdlog.Printf("")
@@ -64,24 +66,37 @@ func HandleCart(cart uint, cut uint, artist, album, title, dstgroup string, sess
 	_, s, code, errstring := sessions.New(ctx, "")
 	if code != http.StatusOK {
 		stdlog.Printf(">>>>>>>>   ERROR: creating session: %s", errstring)
-		return false
+		return 1
 	}
 
 	donechan := make(chan rhimport.Result, 1)
 	if err := s.AddDoneHandler((chan<- rhimport.Result)(donechan), Done); err != nil {
 		stdlog.Printf(">>>>>>>    ERROR: adding done handler: %s", err.Error())
-		return false
+		return 1
 	}
 
 	s.Run(10 * time.Minute)
-	res := <-donechan
+	var res rhimport.Result
+Loop:
+	for {
+		select {
+		case res = <-donechan:
+			break Loop
+		case <-c:
+			s.Cancel()
+		}
+	}
+	if res.ResponseCode == http.StatusNoContent {
+		stdlog.Printf(">>>>>>>    CANCELED!!")
+		return -1
+	}
 
 	if res.ResponseCode != http.StatusOK {
 		stdlog.Printf(">>>>>>>    ERROR: import failed: %s", res.ErrorString)
-		return false
+		return 1
 	}
 	stdlog.Printf(">>>>>>>    SUCCESS: imported into: cart/cut %d/%d", res.Cart, res.Cut)
-	return true
+	return 0
 }
 
 func main() {
@@ -91,7 +106,7 @@ func main() {
 	oldGroup := os.Args[1]
 	newGroup := os.Args[2]
 
-	conf, err := rhimport.NewConfig(NEW_RD_CONF, "http://localhost/rd-bin/rdxport.cgi", "/tmp", "snd/")
+	conf, err := rhimport.NewConfig(NEW_RD_CONF, "http://localhost/rd-bin/rdxport.cgi", "tmp/", "snd/")
 	if err != nil {
 		log.Fatal("Error parsing configuration file:", err)
 	}
@@ -103,7 +118,7 @@ func main() {
 	defer newdb.Cleanup()
 
 	stdlog := log.New(os.Stderr, "[std] ", log.LstdFlags)
-	//	dbglog := log.New(os.Stderr, "[dbg] ", log.LstdFlags)
+	//dbglog := log.New(os.Stderr, "[dbg] ", log.LstdFlags)
 	var dbglog *log.Logger
 	sessions, err := rhimport.NewSessionStore(conf, newdb.GetInterface(), stdlog, dbglog)
 	if err != nil {
@@ -124,6 +139,9 @@ func main() {
 		log.Fatal("Error fetching Pool cart list:", err)
 	}
 
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, os.Interrupt, syscall.SIGHUP, syscall.SIGQUIT, syscall.SIGTERM)
+
 	stdlog.Println("***************************************************************")
 	stdlog.Printf("*** will import: %d carts from old:%s -> new:%s", len(carts), oldGroup, newGroup)
 	stdlog.Println("***************************************************************")
@@ -137,6 +155,7 @@ func main() {
 	start := time.Now()
 	successCnt := 0
 	errCnt := 0
+Loop:
 	for _, k := range keys {
 		cart := carts[uint(k)]
 		if len(cart.Cuts) == 0 {
@@ -146,9 +165,12 @@ func main() {
 			stdlog.Printf("Warning: Cart %d has multiple cuts - will only use the first", cart.Number)
 		}
 		cut := cart.Cuts[0].Number
-		if HandleCart(cart.Number, cut, cart.Artist, cart.Album, cart.Title, newGroup, sessions.GetInterface(), conf, stdlog, dbglog) {
+		switch HandleCart(cart.Number, cut, cart.Artist, cart.Album, cart.Title, newGroup, sessions.GetInterface(), conf, stdlog, dbglog, c) {
+		case 0:
 			successCnt++
-		} else {
+		case -1:
+			break Loop
+		default:
 			errCnt++
 		}
 	}
@@ -157,4 +179,5 @@ func main() {
 	stdlog.Printf("*** %d files imported successfully, %d errors", successCnt, errCnt)
 	stdlog.Printf("***       process took %v", time.Since(start))
 	stdlog.Println("***************************************************************")
+	time.Sleep(time.Second) // give session some time to cleanup
 }
-- 
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