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gulpfile.js
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gulpfile.js
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var
// node
path = require('path'),
// gulp plugins
gulp = require('gulp'),
gutil = require('gulp-util'),
spawn = require('gulp-spawn-shim'),
rename = require('gulp-rename'),
watch = require('gulp-watch'),
nodemon = require('gulp-nodemon'),
browserSync = require('browser-sync'),
Cache = require('gulp-file-cache');
useref = require('gulp-useref'),
filter = require('gulp-filter'),
uglify = require('gulp-uglify'),
minifyCss = require('gulp-clean-css'),
clean = require('gulp-clean'),
gulpSequence = require('gulp-sequence'),
debug = require('gulp-debug'),
open = require('gulp-open');
// document dirs config
var docs = "./content";
var dist = "./dist";
const jsFilter = filter('**/*.js', {restore: true});
const cssFilter = filter('**/*.css', {restore: true});
const BROWSER_SYNC_PORT = 5000;
const BROWSER_SYNC_RELOAD_DELAY = 3000;
const DEFAULT_CONTENT = "demo";
let cache = new Cache();
// pandoc tasks
var generatorTaskTemplate = function(templateFile, resultSuffix) {
var opts = {};
opts.cmd = 'pandoc';
opts.args = [];
opts.args.push('-s');
opts.args.push('--template=' + path.join(__dirname, templateFile));
var pandoc = function(file, opts, cb) {
return cb(file, opts);
};
return gulp.src(path.join(docs, '*.md'))
.pipe(spawn(opts, pandoc))
.on('failure', console.log)
.pipe(rename(function (path) {
path.basename += resultSuffix;
path.extname = ".html"
}))
.pipe(cache.filter()) //It won't stop Pandoc from running, but BrowserSync won't kick of unnecessarily
.pipe(debug())
.pipe(cache.cache())
.pipe(gulp.dest(docs));
}
// generator tasks using pandoc
gulp.task('generate-internal-slides', function() {
return generatorTaskTemplate('./template-internal-slides.html', '-internal-slides');
});
gulp.task('generate-internal-notes', function() {
return generatorTaskTemplate('./template-internal-notes.html', '-internal-notes');
});
gulp.task('generate-public-slides', function() {
return generatorTaskTemplate('./template-public-slides.html', '-public-slides');
});
gulp.task('generate-public-notes', function() {
return generatorTaskTemplate('./template-public-notes.html', '-public-notes');
});
gulp.task('compile-md', ['generate-public-slides', 'generate-public-notes', 'generate-internal-slides', 'generate-internal-notes']);
// main task with watch and live reload
gulp.task('default', ['open', 'watch']);
// Open slides & notes browser
gulp.task('open', ['browser-sync'], function(){
var options_slides = {
uri: 'http://localhost:' + BROWSER_SYNC_PORT + '/' + DEFAULT_CONTENT + '-internal-slides.html',
app: 'chrome'
};
var options_notes = {
uri: 'http://localhost:' + BROWSER_SYNC_PORT + '/' + DEFAULT_CONTENT + '-internal-notes.html',
app: 'chrome'
};
gulp.src('').pipe(open(options_slides)).pipe(open(options_notes));
});
// Nodemon
gulp.task('nodemon', ['compile-md'], function(cb) {
let called = false;
return nodemon({
script: 'app.js',
watch: 'app.js'
}).on('start', () => {
if (!called) {cb();}
called = true;
}).on('restart', () => {
setTimeout(function() {browserSync.reload({stream: false});}, BROWSER_SYNC_RELOAD_DELAY);
});
});
// Browser-Sync
gulp.task('browser-sync', ['nodemon'], function() {
browserSync({
proxy: {
target: 'http://localhost:8084',
ws: true
},
open: false,
port: BROWSER_SYNC_PORT
});
});
// Watch
gulp.task('watch', function() {
// watch md files + reload results when ready
gulp.watch(path.join(docs, '*.md'), ['compile-md']);
gulp.watch(path.join(docs, '*.html')).on('change', browserSync.reload);
gulp.watch(path.join(docs, '/common/styles/*.css')).on('change', browserSync.reload);
});
// Dist
gulp.task('dist-clean', function() {
return gulp.src(dist, {read: false})
.pipe(clean());
});
gulp.task('dist-public-html', function() {
//minification + using optimized files in *public* html files + dumping them to the output dir
return gulp.src([ path.join(docs, '*-public-slides.html'), path.join(docs, '*-public-notes.html') ])
.pipe(useref())
.pipe(jsFilter)
.pipe(uglify())
.pipe(jsFilter.restore)
.pipe(cssFilter)
.pipe(minifyCss())
.pipe(cssFilter.restore)
.pipe(debug())
.pipe(gulp.dest(dist))
.on('error', console.log);
});
gulp.task('dist-common-image-assets', function() {
return gulp.src(path.join(docs, 'common/images/*.*'))
.pipe(debug())
.pipe(gulp.dest(path.join(dist, 'common/images')));
});
gulp.task('dist-common-font-assets', function() {
return gulp.src(path.join(docs, 'common/fonts/*.*'))
.pipe(debug())
.pipe(gulp.dest(path.join(dist, 'common/fonts')));
});
//TODO: it doesn't copy subfolders
gulp.task('dist-user-assets', function() {
return gulp.src([path.join(docs, '/*/*'), '!' + path.join(docs, 'common/**/*')], { base: docs })
.pipe(debug())
.pipe(gulp.dest(dist));
});
gulp.task('dist', gulpSequence('generate-public-slides',
'generate-public-notes',
'dist-clean',
'dist-public-html',
'dist-common-image-assets',
'dist-common-font-assets',
'dist-user-assets'));