Gulp task for uploading files to ftp/sftp server based on Sublime Text sftp-config.json configuration file

gulpfile.js

const gutil = require('gulp-util');
const ftp = require( 'vinyl-ftp' );
const sftp = require('gulp-sftp');

// task for deploying files on the server
gulp.task('deploy', function() {
    const config = require('./sftp-config.json');

    const globs = [
        'folder/file',
        'folder/file',
        'folder/file',
    ];

    if (config.type == 'ftp') {
        //  FTP version
        const conn = ftp.create( {
            host:     config.host,
            user:     config.user,
            password: config.password,
            port:     config.port,
            parallel: 10,
            reload:   true,
            debug:    function(d){console.log(d);},
            log:      gutil.log
        });
        return gulp.src( globs, { base: '.', buffer: false } )
            .pipe( conn.newer( '/dest_folder/' ) ) // only upload newer files
            .pipe( conn.dest( '/dest_folder/' ) );
    } else {
        // SFTP version
        const conn = sftp({
                host: config.host,
                user: config.user,
                pass: config.password,
                port: config.port,
                remotePath: config.remote_path,
            });
        return gulp.src(globs, { base: '.', buffer: false } )
            .pipe(conn);
    }
});

If your sublime files include comments (like mine) you can replace require('./sftp-config.json') with:

var config = fs.readFileSync("./sftp-config.json", "utf8").replace(/  +/g, '').replace(/\/\/.+/g, '')
config = JSON.parse(config);

It will remove all indentation and lines starting with // so the file can be parsed.

After a few days I now recommend everyone to drop my previous regex and use strip-json-comments from here for this. Example:

var cleanJSON = require("strip-json-comments");
var config = fs.readFileSync("./sftp-config.json", "utf8");
config = JSON.parse(cleanJSON(config));