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							80 lines
						
					
					
						
							2.2 KiB
						
					
					
				
			
		
		
	
	
							80 lines
						
					
					
						
							2.2 KiB
						
					
					
				/* | 
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* Licensed to the Apache Software Foundation (ASF) under one | 
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* or more contributor license agreements.  See the NOTICE file | 
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* distributed with this work for additional information | 
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* regarding copyright ownership.  The ASF licenses this file | 
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* to you under the Apache License, Version 2.0 (the | 
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* "License"); you may not use this file except in compliance | 
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* with the License.  You may obtain a copy of the License at | 
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* | 
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*   http://www.apache.org/licenses/LICENSE-2.0 | 
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* | 
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* Unless required by applicable law or agreed to in writing, | 
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* software distributed under the License is distributed on an | 
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | 
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* KIND, either express or implied.  See the License for the | 
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* specific language governing permissions and limitations | 
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* under the License. | 
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*/ | 
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 | 
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 | 
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/** | 
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 * Find language definations. | 
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 * | 
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 * Usage: | 
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 * | 
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 * import ecLangPlugin from 'echarts/build/rollup-plugin-ec-lang'; | 
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 * let rollupConfig = { | 
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 *     plugins: [ | 
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 *         ecLangPlugin({lang: 'en'}), | 
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 *         ... | 
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 *     ] | 
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 * }; | 
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 */ | 
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 | 
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const {resolve} = require('path'); | 
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const {readFileSync} = require('fs'); | 
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 | 
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/** | 
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 * @param {Object} [opt] | 
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 * @param {string} [opt.lang=null] null/undefined/'' or 'en' or 'fi' or a file path. | 
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 */ | 
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function getPlugin(opt) { | 
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    let lang = opt && opt.lang || ''; | 
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 | 
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    return { | 
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        load: function (absolutePath) { | 
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            if (/\/src\/lang\.js$/.test(absolutePath)) { | 
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                let langPath = getLangFileInfo(lang).absolutePath; | 
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                if (langPath) { | 
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                    absolutePath = langPath; | 
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                } | 
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            } | 
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            return readFileSync(absolutePath, 'utf-8'); | 
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        } | 
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    }; | 
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} | 
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 | 
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/** | 
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 * @param {string} lang null/undefined/'' or 'en' or 'fi' or a file path. | 
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 * @return {Object} {isOuter, absolutePath} | 
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 */ | 
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let getLangFileInfo = getPlugin.getLangFileInfo = function (lang) { | 
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    let absolutePath; | 
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    let isOuter = false; | 
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 | 
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    if (lang) { | 
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        if (/^[a-zA-Z]{2}$/.test(lang)) { | 
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            absolutePath = resolve(__dirname, '../', 'src/lang' + lang.toUpperCase() + '.js') | 
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        } | 
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        else { | 
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            isOuter = true; | 
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            // `lang` is an absolute path or a relative path based on process.cwd(). | 
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            absolutePath = resolve(lang); | 
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        } | 
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    } | 
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 | 
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    return {isOuter, absolutePath}; | 
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}; | 
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 | 
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module.exports = getPlugin; |