openecomp-ui/tools/gulp/deployment/tools/gulp/tasks/i18nUpdate.js

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * SDC
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 var gulp, replace, rename, fs, prompt, Promise;
  22
  23 function mergePromptOptions(options) {
  24
  25         return new Promise(function(resolve, reject) {
  26                 var lang = options.lang;
  27                 var warDir = options.warDir;
  28                 prompt.start();
  29                 prompt.get([
  30                         {
  31                                 description: 'Enter war directory',
  32                                 default: warDir,
  33                                 name: 'warDir'
  34                         },
  35                         {
  36                                 description: 'Enter locale.json parent directory name',
  37                                 default: lang,
  38                                 name: 'lang'
  39                         }
  40                 ], function (err, result) {
  41
  42                         if(err) {
  43                                 reject(new Error('mergePromptOptions::>\n    ' + err));
  44                                 return;
  45                         }
  46
  47                         var warDir = result.warDir;
  48                         var lang = result.lang;
  49
  50                         console.log('\nlocale.json parent directory name> "' + lang + '"');
  51                         console.log('war director>"' + warDir + '"');
  52
  53                         resolve({
  54                                 warDir: warDir,
  55                                 lang: lang
  56                         });
  57                 });
  58         });
  59 }
  60
  61 function isBundleExists(path) {
  62         return new Promise(function(resolve) {
  63                 fs.stat(path, function(err) {
  64                         resolve(null == err);
  65                         /*if null == err then file exists.*/
  66                 });
  67         });
  68 }
  69
  70 function copyEnglishBundle(enBundlePath, lang) {
  71         return new Promise(function(resolve, reject) {
  72                 gulp.src(enBundlePath, {base: './'})
  73                         .pipe(rename({basename: 'bundle_' + lang}))
  74                         .pipe(gulp.dest('./'))
  75                         .on('end', function() {
  76                                 resolve();
  77                         })
  78                         .on('error', function(err) {
  79                                 reject(new Error('copyEnglishBundle::>\n    ' + err));
  80                         });
  81         });
  82 }
  83
  84 function getLocaleContent(localePath) {
  85
  86         return new Promise(function(resolve, reject) {
  87                 fs.readFile(localePath, {encoding: 'utf-8'}, function(err,data){
  88                         if(err) {
  89                                 reject('getLocaleContent()::>\n    ' + err);
  90                                 return;
  91                         }
  92                         resolve(data);
  93                 });
  94         });
  95
  96 }
  97
  98 function extractLocaleJsonContent(localeDataStr) {
  99
 100         var localeJsonStrI18nStartIdx = localeDataStr.indexOf('I18N_IDENTIFIER_START');
 101         var localeJsonStrI18nEndIdx = localeDataStr.indexOf('I18N_IDENTIFIER_END');
 102
 103         if(-1 === localeJsonStrI18nStartIdx || -1 === localeJsonStrI18nEndIdx) {
 104                 return Promise.reject(new Error('extractLocaleJsonContent::> localeDataStr must contain %I18N_IDENTIFIER_START% and %I18N_IDENTIFIER_END%'));
 105         }
 106
 107         var localeJsonStr = localeDataStr.substring(
 108                 localeDataStr.indexOf('{', localeJsonStrI18nStartIdx),
 109                 localeDataStr.lastIndexOf('}', localeJsonStrI18nEndIdx) + 1
 110         );
 111
 112         try {
 113                 JSON.parse(localeJsonStr);
 114         } catch(e) {
 115                 return Promise.reject(new Error('extractLocaleJsonContent::> localeDataStr must contain a valid json between %I18N_IDENTIFIER_START% and %I18N_IDENTIFIER_END%=>' + e));
 116         }
 117
 118         return Promise.resolve(localeJsonStr);
 119 }
 120
 121 function setBundleLocaleContent(bundlePath, localeJsonStr) {
 122         return new Promise(function(resolve, reject) {
 123                 gulp.src(bundlePath, {base: './'})
 124                         .pipe(replace(/I18N_IDENTIFIER_START(.|[\r\n])*?I18N_IDENTIFIER_END/i, function(expr) {
 125                                 return expr.substring(0, expr.indexOf('{')) + localeJsonStr + expr.substring(expr.lastIndexOf('}') + 1);
 126                         }))
 127                         .pipe(gulp.dest('./'))
 128                         .on('end', function() {
 129                                 resolve();
 130                         })
 131                         .on('error', function(err) {
 132                                 reject(new Error('setBundleLocaleContent::>\n    ' + err));
 133                         });
 134         });
 135 }
 136
 137
 138 function update(options) {
 139
 140         gulp = require('gulp');
 141         replace = require('gulp-replace');
 142         rename = require('gulp-rename');
 143         fs = require('fs');
 144         prompt = require('prompt');
 145         Promise = require('bluebird');
 146
 147         return mergePromptOptions(options).then(function(mergedOptions) {
 148                 var lang = mergedOptions.lang;
 149                 var warDir = mergedOptions.warDir;
 150
 151                 var bundlePath = warDir + '/js/bundle_' + lang + '.js';
 152                 var localePath = warDir + '/i18n/' + lang + '/locale.json';
 153
 154                 return isBundleExists(bundlePath)
 155                         .then(function(isBundleExist) {
 156                                 var englishBundlePath;
 157                                 if(!isBundleExist) {
 158                                         englishBundlePath = warDir + '/js/bundle_en.js';
 159                                         return copyEnglishBundle(englishBundlePath, lang);
 160                                 }
 161                         })
 162                         .then(getLocaleContent.bind(null, localePath))
 163                         .then(extractLocaleJsonContent)
 164                         .then(setBundleLocaleContent.bind(null, bundlePath));
 165         });
 166
 167 }
 168
 169
 170
 171 module.exports = update;