update vendor/ dir to latest w/o heroku, moby

had to lock a lot of things in place

vendor/github.com/mattn/go-sqlite3/sqlite3.go

@@ -167,7 +167,7 @@ type SQLiteDriver struct {
 
 // SQLiteConn implement sql.Conn.
 type SQLiteConn struct {
-	dbMu        sync.Mutex
+	mu          sync.Mutex
 	db          *C.sqlite3
 	loc         *time.Location
 	txlock      string
@@ -202,6 +202,7 @@ type SQLiteRows struct {
 	cols     []string
 	decltype []string
 	cls      bool
+	closed   bool
 	done     chan struct{}
 }
 
@@ -599,6 +600,8 @@ func errorString(err Error) string {
 //     "deferred", "exclusive".
 //   _foreign_keys=X
 //     Enable or disable enforcement of foreign keys.  X can be 1 or 0.
+//   _recursive_triggers=X
+//     Enable or disable recursive triggers.  X can be 1 or 0.
 func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
 	if C.sqlite3_threadsafe() == 0 {
 		return nil, errors.New("sqlite library was not compiled for thread-safe operation")
@@ -608,6 +611,7 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
 	txlock := "BEGIN"
 	busyTimeout := 5000
 	foreignKeys := -1
+	recursiveTriggers := -1
 	pos := strings.IndexRune(dsn, '?')
 	if pos >= 1 {
 		params, err := url.ParseQuery(dsn[pos+1:])
@@ -662,6 +666,18 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
 			}
 		}
 
+		// _recursive_triggers
+		if val := params.Get("_recursive_triggers"); val != "" {
+			switch val {
+			case "1":
+				recursiveTriggers = 1
+			case "0":
+				recursiveTriggers = 0
+			default:
+				return nil, fmt.Errorf("Invalid _recursive_triggers: %v", val)
+			}
+		}
+
 		if !strings.HasPrefix(dsn, "file:") {
 			dsn = dsn[:pos]
 		}
@@ -708,6 +724,17 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
 			return nil, err
 		}
 	}
+	if recursiveTriggers == 0 {
+		if err := exec("PRAGMA recursive_triggers = OFF;"); err != nil {
+			C.sqlite3_close_v2(db)
+			return nil, err
+		}
+	} else if recursiveTriggers == 1 {
+		if err := exec("PRAGMA recursive_triggers = ON;"); err != nil {
+			C.sqlite3_close_v2(db)
+			return nil, err
+		}
+	}
 
 	conn := &SQLiteConn{db: db, loc: loc, txlock: txlock}
 
@@ -735,9 +762,9 @@ func (c *SQLiteConn) Close() error {
 		return c.lastError()
 	}
 	deleteHandles(c)
-	c.dbMu.Lock()
+	c.mu.Lock()
 	c.db = nil
-	c.dbMu.Unlock()
+	c.mu.Unlock()
 	runtime.SetFinalizer(c, nil)
 	return nil
 }
@@ -746,8 +773,8 @@ func (c *SQLiteConn) dbConnOpen() bool {
 	if c == nil {
 		return false
 	}
-	c.dbMu.Lock()
-	defer c.dbMu.Unlock()
+	c.mu.Lock()
+	defer c.mu.Unlock()
 	return c.db != nil
 }
 
@@ -878,6 +905,7 @@ func (s *SQLiteStmt) query(ctx context.Context, args []namedValue) (driver.Rows,
 		cols:     nil,
 		decltype: nil,
 		cls:      s.cls,
+		closed:   false,
 		done:     make(chan struct{}),
 	}
 
@@ -950,9 +978,10 @@ func (s *SQLiteStmt) exec(ctx context.Context, args []namedValue) (driver.Result
 
 // Close the rows.
 func (rc *SQLiteRows) Close() error {
-	if rc.s.closed {
+	if rc.s.closed || rc.closed {
 		return nil
 	}
+	rc.closed = true
 	if rc.done != nil {
 		close(rc.done)
 	}