100 lines
3.5 KiB
JavaScript
100 lines
3.5 KiB
JavaScript
'use strict';
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var gulp = require('gulp'),
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inlineCss = require('gulp-inline-css'),
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minifyHTML = require('gulp-minify-html'),
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minifyInline = require('gulp-minify-inline'),
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preprocess = require('gulp-preprocess'),
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rename = require('gulp-rename'),
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fsx = require('fs-extra'),
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fs = require('fs'),
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Q = require('q'),
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del = require('del'),
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inlineimg = require('gulp-inline-image-html');
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function buildTask(options){
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gulp.task('build', ['dupe', 'less', 'sass', 'postcss'], function build() {
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/** Makes templates for a given directory & its configurations.
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* @function makeTemplates
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* @param {String} dir Directory to make templates from.
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* @param {Array} confItems A list of configurations objects (usually persons) to make templates from.
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*/
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function makeTemplates(dir, confItems){
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confItems.forEach(function handleConf(conf){
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var cwd = options.workingDir + '/' + dir;
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var stylesheets = [];
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/**
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* Find stylesheets relative to the CWD & generate <link> tags.
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* This way we can automagically inject them into <head>.
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*/
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fsx
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.walk(cwd)
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.on('readable', function walkTemplateDir() {
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var stylesheet;
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while (stylesheet = this.read()) {
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var relativePath = __dirname.substring(0, __dirname.lastIndexOf('/')) + '/tmp/' + dir;
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stylesheets.push(stylesheet.path.replace(relativePath, ''));
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}
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})
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.on('end', function finishedTemplateDirWalk() {
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conf.stylesheets = stylesheets
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.filter(function filterFiles(file) {
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/* Read only CSS files. */
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return (file.match(/.*\.css/)) ? true : false;
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})
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.reduce(function(prev, current, index, acc){
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return prev += '<link rel="stylesheet" href="' + current + '">';
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}, '');
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options
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.src([cwd + '/**/*.html', '!' + cwd + '/**/*.inc.html'])
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.pipe(preprocess({
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context: conf
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}))
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.pipe(inlineimg(cwd))
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.pipe(inlineCss({
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applyTableAttributes: true,
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applyWidthAttributes: true,
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preserveMediaQueries: true,
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removeStyleTags: false
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}))
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.pipe(minifyHTML({quotes: true}))
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.pipe(minifyInline())
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.pipe(rename(function rename(path){
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path.dirname = dir;
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path.basename += '-' + conf.id;
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return path;
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}))
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.pipe(gulp.dest(options.dist));
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})
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});
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}
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/** Clean up & then read 'src' to generate templates (build entry point). */
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del(options.dist)
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.then(function buildStart(){
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/**
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* Loop through dirs and load their conf files.
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* Promisify all 'makeTemplate' calls and when resolved, make a call to the task (`cb`) to let gulp know we're done.
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*/
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var files = [];
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var promises = [];
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fs
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.readdirSync('./' + options.workingDir)
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.forEach(function readConfigurations(dir){
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/** NB: For 'watch' to properly work, the cache needs to be deleted before each require. */
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var confPath = '../tmp/' + dir + '/conf.js';
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delete require.cache[require.resolve(confPath)];
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promises.push(makeTemplates(dir, require(confPath)));
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});
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Q.all(promises);
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});
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});
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}
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module.exports = buildTask; |