From 291594080b0d573ce70cd115da9fc19c91bdfd09 Mon Sep 17 00:00:00 2001
From: Jesse Rittner <rittneje@gmail.com>
Date: Sat, 8 Dec 2018 08:01:50 -0500
Subject: [PATCH] Revert "SQLITE_OPEN_CREATE should be specified for
 sqlite3_open_v2 if mode is not rw"

This reverts commit 03b96a53baf1987fe52b653ce0d1817e549259b8.
---
 sqlite3.go | 22 ++++++----------------
 1 file changed, 6 insertions(+), 16 deletions(-)

diff --git a/sqlite3.go b/sqlite3.go
index 7506522..f731d20 100644
--- a/sqlite3.go
+++ b/sqlite3.go
@@ -990,6 +990,7 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
 	authPass := ""
 	authCrypt := ""
 	authSalt := ""
+	mutex := C.int(C.SQLITE_OPEN_FULLMUTEX)
 	txlock := "BEGIN"
 
 	// PRAGMA's
@@ -1006,7 +1007,6 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
 	secureDelete := "DEFAULT"
 	synchronousMode := "NORMAL"
 	writableSchema := -1
-	flags := C.SQLITE_OPEN_READWRITE | C.SQLITE_OPEN_CREATE | C.SQLITE_OPEN_FULLMUTEX
 
 	pos := strings.IndexRune(dsn, '?')
 	if pos >= 1 {
@@ -1015,17 +1015,6 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
 			return nil, err
 		}
 
-		if val := params.Get("mode"); val != "" {
-			switch val {
-			case "ro":
-				flags |= C.SQLITE_OPEN_READONLY
-			case "rw":
-				flags ^= C.SQLITE_OPEN_CREATE
-			case "rwc":
-				flags |= C.SQLITE_OPEN_CREATE
-			}
-		}
-
 		// Authentication
 		if _, ok := params["_auth"]; ok {
 			authCreate = true
@@ -1060,9 +1049,9 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
 		if val := params.Get("_mutex"); val != "" {
 			switch strings.ToLower(val) {
 			case "no":
-				flags |= C.SQLITE_OPEN_NOMUTEX
+				mutex = C.SQLITE_OPEN_NOMUTEX
 			case "full":
-				flags |= C.SQLITE_OPEN_FULLMUTEX
+				mutex = C.SQLITE_OPEN_FULLMUTEX
 			default:
 				return nil, fmt.Errorf("Invalid _mutex: %v", val)
 			}
@@ -1349,8 +1338,9 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
 	var db *C.sqlite3
 	name := C.CString(dsn)
 	defer C.free(unsafe.Pointer(name))
-
-	rv := C._sqlite3_open_v2(name, &db, C.int(flags), nil)
+	rv := C._sqlite3_open_v2(name, &db,
+		mutex|C.SQLITE_OPEN_READWRITE|C.SQLITE_OPEN_CREATE,
+		nil)
 	if rv != 0 {
 		if db != nil {
 			C.sqlite3_close_v2(db)