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35 lines
997 B
35 lines
997 B
'use strict';
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var path = require('path'),
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fs = require('fs');
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var loaderUtils = require('loader-utils');
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var getContextDirectory = require('./utility/get-context-directory');
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/**
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* Codec for relative paths with respect to the context directory.
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* @type {{name:string, decode: function}}
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*/
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module.exports = {
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name : 'npm-module',
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decode: decode
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};
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/**
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* Decode the given uri.
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* Include only module paths containing `~`.
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* @this {{options: object}} A loader or compilation
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* @param {string} uri A source uri to decode
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* @returns {boolean|string} False where unmatched else the decoded path
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*/
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function decode(uri) {
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/* jshint validthis:true */
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if (/~/.test(uri)) {
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var relative = loaderUtils.urlToRequest(uri),
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base = getContextDirectory.call(this),
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absFile = path.normalize(path.join(base, 'node_modules', relative)),
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isValid = !!absFile && fs.existsSync(absFile) && fs.statSync(absFile).isFile();
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return isValid && absFile;
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}
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}
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