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gulpfile.js
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gulpfile.js
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/*jshint node:true, esversion: 6 */
/*
* * * * * ==============================
* * * * * ==============================
* * * * * ==============================
* * * * * ==============================
========================================
========================================
========================================
----------------------------------------
USWDS SASS GULPFILE
----------------------------------------
*/
"use strict";
const autoprefixer = require("autoprefixer");
const browsersync = require("browser-sync");
const cp = require("child_process");
const csso = require("postcss-csso");
const del = require("del");
const gulp = require("gulp");
const log = require("fancy-log");
const notify = require("gulp-notify");
const pkg = require("./node_modules/uswds/package.json");
const postcss = require("gulp-postcss");
const replace = require("gulp-replace");
const sass = require("gulp-sass");
const sourcemaps = require("gulp-sourcemaps");
const uswds = require("./node_modules/uswds-gulp/config/uswds");
const config = require("./config");
const bSConfig = config.browsersync.development;
const env = process.env.NODE_ENV || "prod";
const watchConfig = config.watch;
/*
----------------------------------------
PATHS
----------------------------------------
- All paths are relative to the project root
- Don't use a trailing `/` for path names
----------------------------------------
*/
// Project Sass source directory
// As a user of this repo, this is where you make style changes
const PROJECT_SASS_SRC = './assets/uswds-theme';
// This is where the html-prototype application stylesheets live
// As a user of this repo, you can change these but should not have to
const PROTOTYPE_SASS_SRC = './assets/stylesheets';
// USWDS Sass source directory
const PROJECT_USWDS_SASS_SRC = './assets/uswds-sass';
// Images destination
const IMG_DEST = './assets/img';
// Fonts destination
const FONTS_DEST = './assets/fonts';
// Javascript destination
const JS_DEST = './assets/js/vendor';
// Compiled CSS destinations
// 1. Compile uswds-theme/styles.scss
// 2. That is imported by stylesheets/application.scss which generates application.css
// 3. application.css is what is consumed by the pages of the application being built
// 4. In order for browserSync to work, we must drop the application.css in the _site directory
const PROJECT_SASS_DEST = './assets/stylesheets';
const PROJECT_SASS_SITE_DEST = './_site/assets/stylesheets';
/*
----------------------------------------
FUNCTIONS
----------------------------------------
*/
function browserSync(done) {
browsersync.init(bSConfig);
done();
}
// Reload task, that is used by jekyll-rebuild
function browserSyncReload(done) {
browsersync.reload();
done();
}
// Clean assets
function clean() {
return del([
"./_site/assets/",
`${PROJECT_SASS_DEST}/*.css`,
`${PROJECT_SASS_DEST}/*.css.map`
]);
}
function css() {
var plugins = [
autoprefixer({
cascade: false,
grid: true
}),
// Minify
csso(({ forcedMediaMerge: false }))
];
return (
gulp
.src([`${PROJECT_SASS_SRC}/styles.scss`, `${PROTOTYPE_SASS_SRC}/application.scss`])
.pipe(sourcemaps.init({ largeFile: true }))
.pipe(
sass.sync({
includePaths: [
`${PROJECT_SASS_SRC}`,
`${uswds}/scss`,
`${uswds}/scss/packages`,
]
})
)
.pipe(replace(/\buswds @version\b/g, 'based on uswds v' + pkg.version))
.pipe(postcss(plugins))
.pipe(sourcemaps.write('.'))
.pipe(gulp.dest(`${PROJECT_SASS_DEST}`))
.pipe(gulp.dest(`${PROJECT_SASS_SITE_DEST}`))
.pipe(notify({
"sound": "Pop" // case sensitive
}))
);
}
function jekyll(done) {
log("Running buildJekyll");
if (env === "prod") {
log("Building for production");
return cp
.spawn("bundle", ["exec", "jekyll", "build"], { stdio: "inherit" })
.on("close", done);
} else {
log("Building for development");
return cp
.spawn(
"bundle",
["exec", "jekyll", "build", "--config", "_config.yml,_config-dev.yml"],
{ stdio: "inherit" }
)
.on("close", done);
}
}
function watchFiles() {
gulp.watch(watchConfig.jekyll, gulp.series(jekyll, browserSyncReload));
gulp.watch(
[
`${PROTOTYPE_SASS_SRC}/application.scss`,
`${PROTOTYPE_SASS_SRC}/base/_base.scss`,
`${PROTOTYPE_SASS_SRC}/base/_forms.scss`,
`${PROTOTYPE_SASS_SRC}/_variables.scss`,
`${PROJECT_SASS_SRC}/*.scss`,
],
gulp.series(css, browserSyncReload)
);
}
/*
----------------------------------------
TASKS
----------------------------------------
*/
const copyUSWDSSetup = () => {
return gulp.src(`${uswds}/scss/theme/**/**`)
.pipe(gulp.dest(`${PROJECT_SASS_SRC}`));
}
const copyUSWDSCore = () => {
return gulp.src(`${uswds}/scss/core/**/**`)
.pipe(gulp.dest(`${PROJECT_USWDS_SASS_SRC}/core`));
}
const copyUSWDSLib = () => {
return gulp.src(`${uswds}/scss/lib/**/**`)
.pipe(gulp.dest(`${PROJECT_USWDS_SASS_SRC}/lib`));
}
const copyUSWDSSettings = () => {
return gulp.src(`${uswds}/scss/settings/**/**`)
.pipe(gulp.dest(`${PROJECT_USWDS_SASS_SRC}/settings`));
}
const copyUSWDSFonts = () => {
return gulp.src(`${uswds}/fonts/**/**`)
.pipe(gulp.dest(`${FONTS_DEST}`));
}
const copyUSWDSImages = () => {
return gulp.src(`${uswds}/img/**/**`)
.pipe(gulp.dest(`${IMG_DEST}`));
}
const copyUSWDSJS = () => {
return gulp.src(`${uswds}/js/**/**`)
.pipe(gulp.dest(`${JS_DEST}`));
}
// Define complex tasks
const build = gulp.series(clean, gulp.parallel(css, jekyll));
const init = gulp.series(
copyUSWDSSetup,
copyUSWDSCore,
copyUSWDSLib,
copyUSWDSSettings,
copyUSWDSFonts,
copyUSWDSImages,
copyUSWDSJS,
css
);
const update = gulp.series(
copyUSWDSCore,
copyUSWDSLib,
copyUSWDSSettings,
copyUSWDSFonts,
copyUSWDSImages,
copyUSWDSJS,
css
);
const watch = gulp.parallel(watchFiles, browserSync);
// Export tasks
exports.css = css;
exports.init = init;
exports.jekyll = jekyll;
exports.build = build;
exports.watch = watch;
exports.default = build;