accounts/keystore: canonicalize path to temp directory

accounts/keystore/account_cache.go

@@ -316,7 +316,7 @@ func (ac *accountCache) scanAccounts() error {
 	)
 
 	for _, p := range creates.List() {
-		if a := readAccount(p.(string),buf); a != nil {
+		if a := readAccount(p.(string), buf); a != nil {
 			ac.add(*a)
 		}
 	}

accounts/keystore/account_cache_test.go

@@ -51,6 +51,28 @@ var (
 	}
 )
 
+// newTempDir returns the name of new temporary folder (not created yet)
+func newTempDir() (string, error) {
+
+	// On OSX, there's  a problem
+	// https://stackoverflow.com/questions/45122459/docker-mounts-denied-the-paths-are-not-shared-from-os-x-and-are-not-known/45123074#45123074
+	//
+	// > /var in macOS is a symbolic link into /private.
+	//
+	// And when creating a tempdir, it returns a path into '/var/folders...'.
+	// However, if we start watching that directory, the notify-events will contain the
+	// canonical paths, and thus e.g. deleted/updated files won't match our existing files.
+	// TLDR; we need to use the canonical path, which we obtain via EvalSymlinks
+
+	rand.Seed(time.Now().UnixNano())
+
+	tmpdir, err := filepath.EvalSymlinks(os.TempDir())
+	if err != nil {
+		return "", err
+	}
+	return filepath.Join(tmpdir, fmt.Sprintf("eth-keystore-watch-test-%d-%d", os.Getpid(), rand.Int())), nil
+}
+
 func TestWatchNewFile(t *testing.T) {
 	t.Parallel()
 
@@ -95,8 +117,11 @@ func TestWatchNoDir(t *testing.T) {
 	t.Parallel()
 
 	// Create ks but not the directory that it watches.
-	rand.Seed(time.Now().UnixNano())
-	dir := filepath.Join(os.TempDir(), fmt.Sprintf("eth-keystore-watch-test-%d-%d", os.Getpid(), rand.Int()))
+	dir, err := newTempDir()
+	if err != nil {
+		t.Fatal(err)
+	}
+
 	ks := NewKeyStore(dir, LightScryptN, LightScryptP)
 
 	list := ks.Accounts()
@@ -320,9 +345,11 @@ func waitForAccounts(wantAccounts []accounts.Account, ks *KeyStore) error {
 func TestUpdatedKeyfileContents(t *testing.T) {
 	t.Parallel()
 
-	// Create a temporary kesytore to test with
-	rand.Seed(time.Now().UnixNano())
-	dir := filepath.Join(os.TempDir(), fmt.Sprintf("eth-keystore-watch-test-%d-%d", os.Getpid(), rand.Int()))
+	dir, err := newTempDir()
+
+	if err != nil {
+		t.Fatal(err)
+	}
 	ks := NewKeyStore(dir, LightScryptN, LightScryptP)
 
 	list := ks.Accounts()

accounts/keystore/keystore_test.go

@@ -26,6 +26,8 @@ import (
 	"testing"
 	"time"
 
+	"path/filepath"
+
 	"github.com/ethereum/go-ethereum/accounts"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/event"
@@ -375,7 +377,15 @@ func checkEvents(t *testing.T, want []walletEvent, have []walletEvent) {
 }
 
 func tmpKeyStore(t *testing.T, encrypted bool) (string, *KeyStore) {
-	d, err := ioutil.TempDir("", "eth-keystore-test")
+	var (
+		d   string
+		err error
+	)
+	d, err = ioutil.TempDir("", "eth-keystore-test")
+	if err != nil {
+		t.Fatal(err)
+	}
+	d, err = filepath.EvalSymlinks(d)
 	if err != nil {
 		t.Fatal(err)
 	}

accounts/keystore/watch.go

@@ -75,36 +75,12 @@ func (w *watcher) loop() {
 	w.running = true
 	w.ac.mu.Unlock()
 
-	// Wait for file system events and reload.
-	// When an event occurs, the reload call is delayed a bit so that
-	// multiple events arriving quickly only cause a single reload.
-	//var (
-	//debounceDuration = 500 * time.Millisecond
-	//rescanTriggered  = false
-	//debounce         = time.NewTimer(0)
-	//)
-	// Ignore initial trigger
-	//if !debounce.Stop() {
-	//	<-debounce.C
-	//}
-	//defer debounce.Stop()
 	for {
 		select {
 		case <-w.quit:
 			return
 		case ei := <-w.ev:
-//			fmt.Printf("Event: %v\n", ei)
-			ei.Path()
 			w.ac.checkFile(ei.Path())
-			//			w.ac.scanAccounts()
-			// Trigger the scan (with delay), if not already triggered
-			//		if !rescanTriggered {
-			//			debounce.Reset(debounceDuration)
-			//			rescanTriggered = true
-			//		}
-			//	case <-debounce.C:
-			//		w.ac.scanAccounts()
-			//		rescanTriggered = false
 		}
 	}
 }