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init.js ➔ preventParentScopeModules   A

↳ Parent: tests/init.js

Complexity

Conditions 3

Size

Total Lines 12
Code Lines 6

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
eloc 6
dl 0
loc 12
c 0
b 0
f 0
rs 10
cc 3
1 
/* eslint-disable import/no-commonjs */
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const { Module } = require('module');
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const path = require('path');
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function clearRequireCache() {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    for (const key of Object.keys(require.cache)) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        delete require.cache[key];

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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}

            


            
                                                                                                            
                            
            
                                    
            
            

                
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function isPathInside(childPath, parentPath) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const relation = path.relative(parentPath, childPath);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    return Boolean(

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        relation &&

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		relation !== '..' &&

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		!relation.startsWith(`..${path.sep}`) &&

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		relation !== path.resolve(childPath)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    );

            


            
                                                                                                            
                            
            
                                    
            
            

                
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}

            


            
                                                                                                            
                            
            
                                    
            
            

                
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const ROOT_FOLDER = process.cwd();

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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function preventParentScopeModules() {

            


            
                                                                        
                            
            
                                    
            
            

                
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    const nodeModulePaths = Module._nodeModulePaths;

            


            
                                                                        
                            
            
                                    
            
            

                
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    Module._nodeModulePaths = function (from) {

            


            
                                                                        
                            
            
                                    
            
            

                
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        const originalPath = nodeModulePaths.call(this, from);

            


            
                                                                        
                            
            
                                    
            
            

                
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        return originalPath.filter(function (p) {

            


            
                                                                        
                            
            
                                    
            
            

                
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            return isPathInside(p, ROOT_FOLDER);

            


            
                                                                        
                            
            
                                    
            
            

                
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        });

            


            
                                                                        
                            
            
                                    
            
            

                
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    };

            


            
                                                                        
                            
            
                                    
            
            

                
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}

            


            
                                                                                                            
                            
            
                                    
            
            

                
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clearRequireCache();

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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preventParentScopeModules();

            


            
                                                        
            
                                    
            
            

                
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