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'use strict';
var gulp = require('gulp');
var sass = require('gulp-sass');
var size = require('gulp-size');
var plumber = require('gulp-plumber');
var template = require('gulp-template');
var git = require('gulp-git');
var uglify = require('gulp-uglify');
var cleanCSS = require('gulp-clean-css');
var browserSync = require('browser-sync').create();
var del = require('del');
var elm = require('gulp-elm');
var fs = require('fs');
var bs;
sass.compiler = require('node-sass');
const prodDir = 'dist'
let staticAssets = ["index.html", "assets/images/favicon.ico"];
let stylesheets = ['assets/scss/*.scss', 'assets/scss/*.css'];
function reload(done) {
browserSync.reload();
done();
}
gulp.task("clean:dev", function(cb) {
return del(["serve"], cb);
});
function cleanProd (cb) {
return del([prodDir], cb);
}
function stylesProd () {
return gulp.src(stylesheets)
.pipe(sass().on('error', sass.logError))
.pipe(cleanCSS())
.pipe(gulp.dest(prodDir + '/assets/stylesheets/'))
.pipe(size({ title: "stylesheets" }));
}
function stylesDev () {
return gulp.src(stylesheets)
.pipe(sass().on('error', sass.logError))
.pipe(gulp.dest('serve/assets/stylesheets/'))
.pipe(size({ title: "stylesheets" }));
}
gulp.task("js:dev", function () {
return gulp.src("assets/scripts/**")
.pipe(gulp.dest("serve/assets/scripts"))
.pipe(size({ title: "scripts" }));
});
function jsProd() {
return gulp.src("assets/scripts/**")
.pipe(uglify())
.pipe(gulp.dest(prodDir + "/assets/scripts"))
.pipe(size({ title: "scripts" }));
}
gulp.task("images:dev", function () {
return gulp.src("assets/images/**")
.pipe(gulp.dest("serve/assets/images"))
.pipe(size({ title: "images" }));
});
function imagesProd () {
return gulp.src("assets/images/**")
.pipe(gulp.dest(prodDir + "/assets/images"))
.pipe(size({ title: "images" }));
}
gulp.task("copy:dev", function () {
return gulp.src(staticAssets)
.pipe(gulp.dest("serve"))
.pipe(size({ title: "index.html & favicon" }));
});
function copyProd() {
return gulp.src(staticAssets)
.pipe(gulp.dest(prodDir))
.pipe(size({ title: "index.html & favicon" }));
}
function elmDev() {
return gulp.src("src/Main.elm")
.pipe(plumber())
.pipe(elm())
.on("error", function(err) {
console.error(err.message);
browserSync.notify("Elm compile error", 5000);
fs.writeFileSync("serve/index.html", "<!DOCTYPE html><html><body><pre>" + err.message + "</pre></body></html>");
})
.pipe(plumber.stop())
.pipe(gulp.dest("serve"));
}
function elmProd () {
return gulp.src("src/Main.elm")
.pipe(plumber())
.pipe(elm({ optimize: true }))
.on("error", function(err) {
console.error(err.message);
return err.message;
})
.pipe(uglify())
.pipe(gulp.dest(prodDir));
}
function version() {
return versionShare('serve/assets/scripts');
}
function versionProd() {
return versionShare('dist/assets/scripts');
}
function versionShare(output) {
return git.revParse({args:'--short HEAD'}, function (err, hash) {
if (err) {
console.log('Can not get git hash');
hash = "no-hash-here";
}
gulp.src('assets/scripts/version.js')
.pipe(template({'version': '2.1.0-' + hash}))
.pipe(gulp.dest(output));
});
}
gulp.task("build",
gulp.series("clean:dev", stylesDev, "copy:dev", "images:dev", "js:dev", elmDev, version)
);
gulp.task("serve:dev", gulp.series("build", function () {
browserSync.init({
server: "./serve"
});
// Couldn't get external watch task to reload the browser more than once.
gulp.watch(["src/**/*.elm"], gulp.series(elmDev, "copy:dev", reload));
gulp.watch(["assets/scss/**/*.scss"], gulp.series(stylesDev, "copy:dev", reload));
gulp.watch(["assets/images/**"], gulp.series("copy:dev", reload));
gulp.watch(["index.html", "assets/scripts/*.js"], gulp.series("copy:dev", reload));
}));
gulp.task("default", gulp.series("serve:dev"));
exports.elmProd = elmProd;
exports.stylesDev = stylesDev;
exports.stylesProd = stylesProd;
exports.jsProd = jsProd;
exports.copyProd = copyProd;
exports.buildProd = gulp.series(cleanProd, gulp.parallel(stylesProd, imagesProd, jsProd, copyProd, elmProd), versionProd);