Add database.importFileFile

Part of #439

src/database.js

@@ -10,6 +10,8 @@ exports = module.exports = {
     rollback: rollback,
     commit: commit,
 
+    importFromFile: importFromFile,
+
     _clear: clear
 };
 
@@ -184,3 +186,16 @@ function transaction(queries, callback) {
     });
 }
 
+function importFromFile(file, callback) {
+    assert.strictEqual(typeof file, 'string');
+    assert.strictEqual(typeof callback, 'function');
+
+    var password = config.database().password ? '-p' + config.database().password : '--skip-password';
+
+    var cmd = `/usr/bin/mysql -u ${config.database().username} ${password} ${config.database().name} < ${file}`;
+
+    async.series([
+        query.bind(null, 'CREATE DATABASE IF NOT EXISTS box'),
+        child_process.exec.bind(null, cmd)
+    ], callback);
+}