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/*!
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
var gulp = require('gulp');
var fs = require('fs');
var replace = require('gulp-replace');
var clean = require('gulp-clean');
var tap = require('gulp-tap');
/**
*
* @param options
* @param options.outDir
* @param options.srcDir
* @param options.i18nBundles - optional. if given will check the that all keys from js are mapped
*
*/
function i18nTask(options) {
var i18nJson = {};
function addWord(expr) {
var word = expr.substring('i18n(\''.length, expr.length - 1);
if (word !== '') {
i18nJson[word] = word;
}
return expr;
}
let createBundle = new Promise(function(resolve, reject) {
gulp.src(options.srcDir + '**/*.{js,jsx}', {base: './'})
.pipe(replace(/i18n\('.*?'/g, addWord))
.pipe(clean())
.pipe(gulp.dest('./'))
.on('end', function () {
console.log('Retrieved keys from static references.');
if (options.i18nBundles === undefined) {
// creating the file from the words saved during the replace
let outfile = options.outDir + '/bundleForStaticKeys.json';
fs.writeFile(outfile,JSON.stringify(i18nJson, null, '\t'), function (err) {
if (err) {
reject(err);
}
else resolve();
});
console.log('Bundle with static keys was created under: ' + outfile);
}
resolve();
}).on('error', function (err) {
reject(err);
});
});
if (options.i18nBundles === undefined) {
return createBundle;
} else {
return createBundle.then(() => {
new Promise(function (resolve, reject) {
gulp.src(options.i18nBundles)
.pipe(tap(function (file) {
console.log('Checking against bundle: ' + file.path);
let bundle = JSON.parse(file.contents.toString());
for (entry in i18nJson) {
if (!bundle[entry]) {
console.log('Missing Key: ' + entry);
} else {
delete bundle[entry];
}
}
for (entry in bundle) {
console.log('Unused in static files: ' + entry);
}
}))
.pipe(gulp.dest('./'))
.on('end', function () {
console.log('done');
}).on('error', function (err) {
reject(err);
});
});
});
}
}
module.exports = i18nTask;
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