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