GRADLE - delete whole directory with all subdirectories

Override clean task:

clean {
    delete += 'dist'
}

If you do like this it will remove all files but leaves empty sub-directories:(!!!!!!)
clean {

    delete += fileTree('someDir')
}

or

clean {

    delete += fileTree('someDir').include('**/*')
}

MAVEN - Guide to naming conventions on groupId, artifactId and version

Guide to naming conventions on groupId, artifactId and version
https://maven.apache.org/guides/mini/guide-naming-conventions.html

GULP - free Gulp.js coursre from John Papa (link)

https://www.pluralsight.com/courses/javascript-build-automation-gulpjs

CSS - best place to choose right color palette for your web app

Here you will find variety of web sites samples of different color palette
http://www.colourlovers.com/

CSS - sample demo and github code of site with user image in circle

https://github.com/kimlabs/gentelella

IDIOM - ready to take on the world

ready to take on the world - is an idiom

It means:

"to try to do a lot/too much"
"to try to fight with everyone"
In this particular case it probably means "trying to do too much".

GRADLE - gradle tutorial (link)

https://docs.gradle.org/current/userguide/tutorial_using_tasks.html

IDIOM - lean and mean

'lean and mean' is idiom.
It mins: capable and ready for hard, efficient work

More here.

BOWER - difference between tilde(~) and caret(^) before version number

In the simplest terms, the tilde matches the most recent minor version (the middle number). ~1.2.3 will match all 1.2.x versions but will miss 1.3.0.

The caret, on the other hand, is more relaxed. It will update you to the most recent major version (the first number). ^1.2.3 will match any 1.x.x release including 1.3.0, but will hold off on 2.0.0.

More is here.

GULP - how to configure Gulp to use Sass instead of Less

In order to use Sass instead of Less with Gulp follow this instruction:
https://www.npmjs.com/package/gulp-ruby-sass

and here:
https://github.com/sindresorhus/gulp-ruby-sass

Here is the gulp task for Sass (instead of Less) in HotTowel generator for Angular project:

var sass = require('gulp-ruby-sass');

/** * Compile less to css * @return {Stream} */gulp.task('styles', ['clean-styles'], function() {
    /*log('Compiling Less --> CSS');
    return gulp        .src(config.less)        .pipe($.plumber()) // exit gracefully if something fails after this        .pipe($.less())//        .on('error', errorLogger) // more verbose and dupe output. requires emit.        .pipe($.autoprefixer({browsers: ['last 2 version', '> 5%']}))        .pipe(gulp.dest(config.temp));*/
    log('Compiling Sass --> CSS');
    return sass(config.sass)
        .pipe($.autoprefixer({browsers: ['last 2 version', '> 5%']}))
        .pipe(gulp.dest(config.temp));
});
gulp.task('sass:watch', function () {
    gulp.watch(config.sass, ['sass']);

});