@derherrgammler/sqlimporter/index.js

A npm Module to execute .sql files with Nodejs.

"use strict";
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Dependencies
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
var fs = require("fs");
var path = require("path");
var mysql = require("mysql");
var bluebird = require("bluebird");

var connConfig;
var promiseWhile = bluebird.method(function (condition, action) {
    if (!condition()) {
        return;
    }
    return action().then(promiseWhile.bind(null, condition, action));
});
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Function
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
function config (oConfig) {
    connConfig = {
        "connectionLimit"   : 10,
        "host"              : oConfig.host,
        "user"              : oConfig.user,
        "password"          : oConfig.password
    };
    return this;
};

function importFile (sPath) {
    // console.log(connConfig)
    var connection = mysql.createPool(connConfig);
    // console.log(connection);
    var sFile = path.join(__dirname + "/../../.." + sPath);
    var sSQLFile = fs.readFileSync(sFile, 'utf8');
    var sSQLFile = sSQLFile.replace(/(\r\n|\n|\r)/gm, "");
    var sSQLFile = sSQLFile.replace(/(\/\*([\s\S]*?)\*\/)|(\/\/(.*)$)/gm, "");
    var sSQLFile = sSQLFile.replace(/\s+/g, ' ').trim();
    var aSQLFile = sSQLFile.split(";");
    var iStatements = aSQLFile.length - 1;
    var n = 0;

    promiseWhile(function() {
        return n < iStatements;
    }, function () {
        return new Promise(function (fFill, fFail) {
            console.log("STATEMENT " + n +  ": " + " ]----------[ " + aSQLFile[n]);
            connection.query(aSQLFile[n], function (oErr, rows) {
                if (!oErr) {
                    n += 1;
                    fFill();
                } else {
                    console.log(oErr);
                    fFail("\nError occured!\nCheck Statement: " + aSQLFile[n] + "\nIt's the " + (n + 1) + ". Statement in your File.");
                }
            });
        })
    })
    .then(function () {
        connection.end();
        return;
    });
};

exports.config = config;
exports.importFile = function (sFilePath) {
    importFile(sFilePath);
    return this;
};