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<h1 id="basic-gulp-build-for-sass">Basic Gulp Build for Sass</h1>
<p>2019-01-15</p>
<p>Some designers might shy away from build tools when first starting out and I can understand the reasoning - task runners like <code>gulp</code> and <code>grunt</code> can seem daunting at first. So, I’ve decided to showcase my go-to setup for <code>gulp</code> and explain what the heck it does step-by-step. </p>
<p>Here is the final <code>gulp.js</code> file in all it’s glory:</p>
<pre><code>var gulp = require('gulp');
var shell = require('gulp-shell');
var sass = require('gulp-sass');
/* Build and watch Jekyll (change this task to whatever you need) */
gulp.task('generate', shell.task('jekyll serve'));
/* Compile SCSS files to CSS */
gulp.task('styles', function () {
return gulp.src('_includes/assets/sass/styles.scss')
.pipe(sass({
outputStyle: 'compressed'
}).on('error', sass.logError))
.pipe(gulp.dest('_includes/assets/css/'));
});
/* Compile the assets */
gulp.task('assets', gulp.parallel(
'styles'
));
/* Build */
gulp.task('build', gulp.series(
'assets',
'generate'
));
</code></pre>
<p>Trust me, it’s not complicated at all.</p>
<h2 id="grabbing-what-we-need">Grabbing what we need</h2>
<p>For our basic build file we are going to need only three modules: <code>gulp</code>, <code>gulp-shell</code> and <code>gulp-sass</code>.</p>
<pre><code>var gulp = require('gulp');
var shell = require('gulp-shell');
var sass = require('gulp-sass');
</code></pre>
<h4 id="gulp">gulp</h4>
<p>This is the streaming build system, without it we can’t do anything else.</p>
<h4 id="gulp-shell">gulp-shell</h4>
<p>A gulp command line interface for us to interact with our terminal.</p>
<h4 id="gulp-sass">gulp-sass</h4>
<p>Required for gulp to compile Sass into vanilla CSS.</p>
<h4 id="bonus-tasks">Bonus tasks</h4>
<h2 id="generating-the-build">Generating the build</h2>
<p>Our first step is to create the default task that will generate our build. In this example we are making the assumption that we’re building a Jekyll website (but you can place any build command here):</p>
<pre><code>gulp.task('generate', shell.task('jekyll serve'));
</code></pre>
<p>Don’t worry if this <code>generate</code> isn’t clear, we come back to that later.</p>
<h2 id="processing-our-pre-processor">Processing our pre-processor</h2>
<p>We will name this next task <code>styles</code> since that’s what it outputs - our styling. We start by telling gulp where our main <code>scss</code> directory is:</p>
<pre><code>/* Change this directory to match yours */
return gulp.src('_includes/assets/sass/styles.scss')
</code></pre>
<p>This next piece tells the plugin to compress our final compiled CSS, log any errors if there are issues with the build and then export it to our destination directory:</p>
<pre><code>.pipe(sass({
outputStyle: 'compressed'
}).on('error', sass.logError))
/* Change this to your destination directory */
.pipe(gulp.dest('_includes/assets/css/'));
</code></pre>
<h2 id="building-our-assets">Building our assets</h2>
<p>This step isn’t 100% needed, but I like to include it for when more assets need to be added (minifying JavaScript, compressing images, etc)</p>
<pre><code>/*
Compile the assets
*/
gulp.task('assets', gulp.parallel(
'styles'
));
</code></pre>
<h2 id="altogether-now">Altogether now!</h2>
<p>Now we add a task that runs all other tasks in our gulp file (in this case it will run both <code>assets</code> and <code>generate</code>)</p>
<pre><code>/*
Build
*/
gulp.task('build', gulp.series(
'assets',
'generate'
));
</code></pre>
<p>And that’s it - we’re done! A very basic <code>gulp</code> build for compiling Sass.</p>
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