gulpfile.js

var gulp = require("gulp");
var ts = require("gulp-typescript");
var run = require("gulp-run");
var merge = require('merge-stream');
var fs = require('fs');
var path = require("path");

function getFolders(dir) {
    return fs.readdirSync(dir)
      .filter(function(file) {
        return fs.statSync(path.join(dir, file)).isDirectory();
      });
}

var tsProject = ts.createProject("tsconfig.json");

gulp.task("default", ['build'], function () {
});

gulp.task("dev", ['build'], function(){
   gulp.watch(['src/**/*.ts', 'locale/**/*.json'], ['update-examples-dev']);
});

gulp.task('build', function() {
    return tsProject.src()
        .pipe(tsProject())
        .js.pipe(gulp.dest("lib"));
});

gulp.task('version-dev', ['build'], function(){
    return run('npm version prerelease -f').exec();
});

gulp.task('publish-dev', ['version-dev'], function(){
    return run('npm publish --tag next').exec();
});

gulp.task('update-examples-dev', ['publish-dev'], function(callback){
    var folders = getFolders('examples');
    var tasks = folders.map(function(folder){
        return run('npm install --save botauth@next', { cwd: path.join(__dirname, 'examples', folder)}).exec();
    });

    return merge(tasks);
});

gulp.task('version', ['build'], function(){
    return run('npm version patch').exec();
});

gulp.task('publish', ['version'], function(){
    return run('npm publish').exec();
});

gulp.task('update-examples', ['publish'], function(callback){
    var folders = getFolders('examples');
    var tasks = folders.map(function(folder){
        return run('npm install --save botauth@*', { cwd: path.join(__dirname, 'examples', folder)}).exec();
    });

    return merge(tasks);
});