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by Jace
12s
created

Cache._load()   B

↳ Parent: Project

Complexity

Conditions 5

Size

Total Lines 14

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 12
CRAP Score 5

Importance

Changes 2
Bugs 0 Features 0
Metric Value
cc 5
c 2
b 0
f 0
dl 0
loc 14
ccs 12
cts 12
cp 1
crap 5
rs 8.5454
1 1 
import os
2 1 
import pickle
3 

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class Cache(object):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    PATH = os.path.join('.cache', 'coverage.space')

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    def __init__(self):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        self._data = {}

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        self._load()

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    def _load(self):

            


            
                                                                        
                            
            
                                    
            
            

                
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        try:

            


            
                                                                        
                            
            
                                    
            
            

                
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            with open(self.PATH, 'rb') as fin:

            


            
                                                                        
                            
            
                                    
            
            

                
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                text = fin.read()

            


            
                                                                        
                            
            
                                    
            
            

                
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        except IOError:

            


            
                                                                        
                            
            
                                    
            
            

                
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            text = None

            


            
                                                                        
                            
            
                                    
            
            

                
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        try:

            


            
                                                                        
                            
            
                                    
            
            

                
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            data = pickle.loads(text)

            


            
                                                                        
                            
            
                                    
            
            

                
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        except (TypeError, KeyError, IndexError):

            


            
                                                                        
                            
            
                                    
            
            

                
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            data = None

            


            
                                                                        
                            
            
                                    
            
            

                
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        if isinstance(data, dict):

            


            
                                                                        
                            
            
                                    
            
            

                
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            self._data = data

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    def _store(self):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        directory = os.path.dirname(self.PATH)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        if not os.path.exists(directory):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            os.makedirs(directory)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        text = pickle.dumps(self._data)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        with open(self.PATH, 'wb') as fout:

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            fout.write(text)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    def set(self, url, data, response):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        slug = self._slugify(url, data)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        self._data[slug] = response

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        self._store()

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    def get(self, url, data):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        slug = self._slugify(url, data)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return self._data.get(slug)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    @staticmethod

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    def _slugify(url, data):

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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        return (url, hash(frozenset(data.items())))

            


            
                                                        
            
                                    
            
            

                
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