1 | var path = require('path');
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2 | var callsite = require('callsite');
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3 |
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4 | require.find = function (moduleName) {
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5 | if (moduleName[0] === '.') {
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6 | var stack = callsite();
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7 | for (var i in stack) {
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8 | var filename = stack[i].getFileName();
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9 | if (filename !== module.filename) {
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10 | moduleName = path.resolve(path.dirname(filename), moduleName);
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11 | break;
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12 | }
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13 | }
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14 | }
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15 | try {
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16 | return require.resolve(moduleName);
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17 | } catch (e) {
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18 | return;
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19 | }
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20 | };
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21 |
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22 |
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23 |
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24 |
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25 |
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26 | require.decache = function (moduleName) {
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27 |
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28 | moduleName = require.find(moduleName);
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29 |
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30 | if(!moduleName) {return;}
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31 |
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32 |
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33 |
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34 | require.searchCache(moduleName, function (mod) {
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35 | delete require.cache[mod.id];
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36 | });
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37 |
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38 |
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39 |
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40 | Object.keys(module.constructor._pathCache).forEach(function(cacheKey) {
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41 | if (cacheKey.indexOf(moduleName)>0) {
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42 | delete module.constructor._pathCache[cacheKey];
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43 | }
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44 | });
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45 | };
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46 |
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47 |
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48 |
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49 |
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50 |
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51 | require.searchCache = function (moduleName, callback) {
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52 |
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53 | var mod = require.resolve(moduleName);
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54 | var visited = {};
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55 |
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56 |
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57 |
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58 |
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59 | if (mod && ((mod = require.cache[mod]) !== undefined)) {
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60 |
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61 | (function run(current) {
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62 | visited[current.id] = true;
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63 |
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64 |
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65 | current.children.forEach(function (child) {
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66 | if (!visited[child.id]) {
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67 | run(child);
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68 | }
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69 | });
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70 |
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71 |
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72 |
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73 | callback(current);
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74 | })(mod);
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75 | }
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76 | };
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77 |
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78 | module.exports = require.decache;
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