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158 lines
4.5 KiB
158 lines
4.5 KiB
var fs = require('fs');
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var gulp = require('gulp');
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var gutil = require('gulp-util');
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var concat = require('gulp-concat');
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var minifyCSS = require('gulp-minify-css');
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var rename = require("gulp-rename");
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var webpack = require('webpack');
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var uglify = require('uglify-js');
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var rimraf = require('rimraf');
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var merge = require('merge-stream');
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var argv = require('yargs').argv;
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var ENTRY = './index.js';
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var HEADER = './lib/header.js';
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var DIST = './dist';
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var VIS_JS = 'vis.js';
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var VIS_MAP = 'vis.map';
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var VIS_MIN_JS = 'vis.min.js';
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var VIS_CSS = 'vis.css';
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var VIS_MIN_CSS = 'vis.min.css';
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// generate banner with today's date and correct version
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function createBanner() {
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var today = gutil.date(new Date(), 'yyyy-mm-dd'); // today, formatted as yyyy-mm-dd
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var version = require('./package.json').version;
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return String(fs.readFileSync(HEADER))
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.replace('@@date', today)
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.replace('@@version', version);
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}
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var bannerPlugin = new webpack.BannerPlugin(createBanner(), {
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entryOnly: true,
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raw: true
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});
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// TODO: the moment.js language files should be excluded by default (they are quite big)
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var webpackConfig = {
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entry: ENTRY,
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output: {
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library: 'vis',
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libraryTarget: 'umd',
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path: DIST,
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filename: VIS_JS,
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sourcePrefix: ' '
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},
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// exclude requires of moment.js language files
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module: {
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wrappedContextRegExp: /$^/
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},
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plugins: [ bannerPlugin ],
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cache: true
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};
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var uglifyConfig = {
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outSourceMap: VIS_MAP,
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output: {
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comments: /@license/
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}
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};
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// create a single instance of the compiler to allow caching
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var compiler = webpack(webpackConfig);
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// clean the dist/img directory
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gulp.task('clean', function (cb) {
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rimraf(DIST + '/img', cb);
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});
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gulp.task('bundle-js', ['clean'], function (cb) {
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// update the banner contents (has a date in it which should stay up to date)
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bannerPlugin.banner = createBanner();
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compiler.run(function (err, stats) {
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if (err) gutil.log(err);
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cb();
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});
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});
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// bundle and minify css
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gulp.task('bundle-css', ['clean'], function () {
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var files = [
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'./lib/shared/activator.css',
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'./lib/shared/bootstrap.css',
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'./lib/timeline/component/css/timeline.css',
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'./lib/timeline/component/css/panel.css',
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'./lib/timeline/component/css/labelset.css',
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'./lib/timeline/component/css/itemset.css',
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'./lib/timeline/component/css/item.css',
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'./lib/timeline/component/css/timeaxis.css',
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'./lib/timeline/component/css/currenttime.css',
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'./lib/timeline/component/css/customtime.css',
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'./lib/timeline/component/css/animation.css',
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'./lib/timeline/component/css/dataaxis.css',
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'./lib/timeline/component/css/pathStyles.css',
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'./lib/network/css/network-manipulation.css',
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'./lib/network/css/network-navigation.css'
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];
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return gulp.src(files)
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.pipe(concat(VIS_CSS))
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.pipe(gulp.dest(DIST))
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// TODO: nicer to put minifying css in a separate task?
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.pipe(minifyCSS())
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.pipe(rename(VIS_MIN_CSS))
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.pipe(gulp.dest(DIST));
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});
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gulp.task('copy', ['clean'], function () {
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var network = gulp.src('./lib/network/img/**/*')
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.pipe(gulp.dest(DIST + '/img/network'));
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var timeline = gulp.src('./lib/timeline/img/**/*')
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.pipe(gulp.dest(DIST + '/img/timeline'));
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return merge(network, timeline);
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});
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gulp.task('minify', ['bundle-js'], function (cb) {
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var result = uglify.minify([DIST + '/' + VIS_JS], uglifyConfig);
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// note: we add a newline '\n' to the end of the minified file to prevent
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// any issues when concatenating the file downstream (the file ends
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// with a comment).
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fs.writeFileSync(DIST + '/' + VIS_MIN_JS, result.code + '\n');
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fs.writeFileSync(DIST + '/' + VIS_MAP, result.map);
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cb();
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});
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gulp.task('bundle', ['bundle-js', 'bundle-css', 'copy']);
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// read command line arguments --bundle and --minify
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var bundle = 'bundle' in argv;
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var minify = 'minify' in argv;
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var watchTasks = [];
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if (bundle || minify) {
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// do bundling and/or minifying only when specified on the command line
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watchTasks = [];
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if (bundle) watchTasks.push('bundle');
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if (minify) watchTasks.push('minify');
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}
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else {
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// by default, do both bundling and minifying
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watchTasks = ['bundle', 'minify'];
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}
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// The watch task (to automatically rebuild when the source code changes)
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gulp.task('watch', watchTasks, function () {
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gulp.watch(['index.js', 'lib/**/*'], watchTasks);
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});
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// The default task (called when you run `gulp`)
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gulp.task('default', ['clean', 'bundle', 'minify']);
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