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gulpfile.js
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/**
* @license
* Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
* This code may only be used under the BSD style license found at http:polymer.github.io/LICENSE.txt
* The complete set of authors may be found at http:polymer.github.io/AUTHORS.txt
* The complete set of contributors may be found at http:polymer.github.io/CONTRIBUTORS.txt
* Code distributed by Google as part of the polymer project is also
* subject to an additional IP rights grant found at http:polymer.github.io/PATENTS.txt
*/
// jshint node: true
'use strict';
var gulp = require('gulp');
var audit = require('gulp-audit');
var replace = require('gulp-replace');
var rename = require('gulp-rename');
var vulcanize = require('gulp-vulcanize');
var runseq = require('run-sequence');
var lazypipe = require('lazypipe');
var polyclean = require('polyclean');
var del = require('del');
var fs = require('fs');
var path = require('path');
var micro = "polymer-micro.html";
var mini = "polymer-mini.html";
var max = "polymer.html";
var workdir = 'dist';
var distMicro = path.join(workdir, micro);
var distMini = path.join(workdir, mini);
var distMax = path.join(workdir, max);
var pkg = require('./package.json');
var cleanupPipe = lazypipe()
// Reduce script tags
.pipe(replace, /<\/script>\s*<script>/g, '\n\n')
// Add real version number
.pipe(replace, /(Polymer.version = )'master'/, '$1"' + pkg.version + '"')
// remove leading whitespace and comments
.pipe(polyclean.leftAlignJs)
// remove html wrapper
.pipe(replace, '<html><head><meta charset="UTF-8">', '')
.pipe(replace, '</head><body></body></html>', '')
;
function vulcanizeWithExcludes(target, excludes) {
if (excludes) {
excludes = excludes.map(function(ex) { return path.resolve(ex); });
}
return function() {
return gulp.src(target)
.pipe(vulcanize({
stripComments: true,
excludes: excludes
}))
.pipe(cleanupPipe())
.pipe(gulp.dest(workdir));
};
}
gulp.task('micro', ['mkdir'], vulcanizeWithExcludes(micro));
gulp.task('mini', ['mkdir'], vulcanizeWithExcludes(mini, [micro]));
gulp.task('max', ['mkdir'], vulcanizeWithExcludes(max, [mini, micro]));
gulp.task('clean', function(cb) {
del(workdir, cb);
});
gulp.task('mkdir', function(cb) {
fs.exists(workdir, function(exists) {
return exists ? cb() : fs.mkdir(workdir, null, cb);
});
});
// copy bower.json into dist folder
gulp.task('copy-bower-json', ['mkdir'], function() {
return gulp.src('bower.json').pipe(gulp.dest(workdir));
});
// Default Task
gulp.task('default', ['clean'], function(cb) {
// work around vulcanize not supporting concurrent builds
// Vulcanize bug: https://github.com/Polymer/vulcanize/issues/190
runseq('micro', 'mini', 'max', cb);
});
// switch src and build for testing
gulp.task('save-src', function() {
return gulp.src([mini, micro, max])
.pipe(rename(function(p) {
p.extname += '.bak';
}))
.pipe(gulp.dest('.'));
});
gulp.task('restore-src', function() {
return gulp.src([mini + '.bak', micro + '.bak', max + '.bak'])
.pipe(rename(function(p) {
p.extname = '';
}))
.pipe(gulp.dest('.'));
});
gulp.task('cleanup-switch', function(cb) {
del([mini + '.bak', micro + '.bak', max + '.bak'], cb);
});
gulp.task('switch-build', function() {
return gulp.src([distMini, distMicro, distMax])
.pipe(gulp.dest('.'));
});
gulp.task('switch', ['default'], function(cb) {
runseq('save-src', 'switch-build', cb);
});
gulp.task('restore', ['clean'], function(cb) {
runseq('restore-src', 'cleanup-switch', cb);
});
gulp.task('audit', function() {
return gulp.src([distMini, distMicro, distMax])
.pipe(audit('build.log', {
repos: [
'.'
]
}))
.pipe(gulp.dest('dist'));
});
gulp.task('release', function(cb) {
runseq('default', ['copy-bower-json', 'audit'], cb);
});