hanayo/semantic/tasks/build/css.js

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2019-02-23 13:29:15 +00:00
/*******************************
Build Task
*******************************/
var
gulp = require('gulp'),
// node dependencies
console = require('better-console'),
fs = require('fs'),
// gulp dependencies
autoprefixer = require('gulp-autoprefixer'),
chmod = require('gulp-chmod'),
clone = require('gulp-clone'),
flatten = require('gulp-flatten'),
gulpif = require('gulp-if'),
less = require('gulp-less'),
minifyCSS = require('gulp-clean-css'),
plumber = require('gulp-plumber'),
print = require('gulp-print'),
rename = require('gulp-rename'),
replace = require('gulp-replace'),
runSequence = require('run-sequence'),
// config
config = require('../config/user'),
tasks = require('../config/tasks'),
install = require('../config/project/install'),
// shorthand
globs = config.globs,
assets = config.paths.assets,
output = config.paths.output,
source = config.paths.source,
banner = tasks.banner,
comments = tasks.regExp.comments,
log = tasks.log,
settings = tasks.settings
;
// add internal tasks (concat release)
require('../collections/internal')(gulp);
module.exports = function(callback) {
var
tasksCompleted = 0,
maybeCallback = function() {
tasksCompleted++;
if(tasksCompleted === 2) {
callback();
}
},
stream,
compressedStream,
uncompressedStream
;
console.info('Building CSS');
if( !install.isSetup() ) {
console.error('Cannot build files. Run "gulp install" to set-up Semantic');
return;
}
// unified css stream
stream = gulp.src(source.definitions + '/**/' + globs.components + '.less')
.pipe(plumber(settings.plumber.less))
.pipe(less(settings.less))
.pipe(autoprefixer(settings.prefix))
.pipe(replace(comments.variables.in, comments.variables.out))
.pipe(replace(comments.license.in, comments.license.out))
.pipe(replace(comments.large.in, comments.large.out))
.pipe(replace(comments.small.in, comments.small.out))
.pipe(replace(comments.tiny.in, comments.tiny.out))
.pipe(flatten())
;
// two concurrent streams from same source to concat release
uncompressedStream = stream.pipe(clone());
compressedStream = stream.pipe(clone());
// uncompressed component css
uncompressedStream
.pipe(plumber())
.pipe(replace(assets.source, assets.uncompressed))
.pipe(gulpif(config.hasPermission, chmod(config.permission)))
.pipe(gulp.dest(output.uncompressed))
.pipe(print(log.created))
.on('end', function() {
runSequence('package uncompressed css', maybeCallback);
})
;
// compressed component css
compressedStream = stream
.pipe(plumber())
.pipe(clone())
.pipe(replace(assets.source, assets.compressed))
.pipe(minifyCSS(settings.minify))
.pipe(rename(settings.rename.minCSS))
.pipe(gulpif(config.hasPermission, chmod(config.permission)))
.pipe(gulp.dest(output.compressed))
.pipe(print(log.created))
.on('end', function() {
runSequence('package compressed css', maybeCallback);
})
;
};