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Push — master ( c18a49...b09083 )
by Felipe A.
53s
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browsepy.file.unix_file()   A

↳ Parent: Project

Complexity

Conditions 4

Size

Total Lines 10

Duplication

Lines 0
Ratio 0 %
Metric Value
cc 4
dl 0
loc 10
rs 9.2
1 
#!/usr/bin/env python
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# -*- coding: UTF-8 -*-
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import re

            


            
                                                                                                            
                            
            
                                    
            
            

                
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import subprocess

            


            
                                                                                                            
                            
            
                                    
            
            

                
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import mimetypes

            


            
                                                                                                            
                            
            
                                    
            
            

                
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from ..compat import FileNotFoundError, filter

            


            
                                                                                                            
                            
            
                                    
            
            

                
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generic_mimetypes = {'application/octet-stream', None}

            


            
                                                                                                            
                            
            
                                    
            
            

                
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re_mime_validate = re.compile('\w+/\w+(; \w+=[^;]+)*')

            


            
                                                                                                            
                            
            
                                    
            
            

                
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mimetype_methods = []

            


            
                                                                                                            
                            
            
                                    
            
            

                
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@mimetype_methods.append

            


            
                                                                                                            
                            
            
                                    
            
            

                
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def mimetypes_library(path):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    mime, encoding = mimetypes.guess_type(path)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    if mime in generic_mimetypes:

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return None

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    return "%s%s%s" % (mime or "application/octet-stream", "; " if encoding else "", encoding or "")

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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@mimetype_methods.append

            


            
                                                                        
                            
            
                                    
            
            

                
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def unix_file(path):

            


            
                                                                        
                            
            
                                    
            
            

                
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    try:

            


            
                                                                        
                            
            
                                    
            
            

                
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        output = subprocess.check_output(("file", "-ib", path)).decode('utf8').strip()

            


            
                                                                        
                            
            
                                    
            
            

                
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        if re_mime_validate.match(output) and not output in generic_mimetypes:

            


            
                                                                        
                            
            
                                    
            
            

                
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            # 'file' command can return status zero with invalid output

            


            
                                                                        
                            
            
                                    
            
            

                
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            return output

            


            
                                                                        
                            
            
                                    
            
            

                
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    except (subprocess.CalledProcessError, FileNotFoundError):

            


            
                                                                        
                            
            
                                    
            
            

                
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        pass

            


            
                                                                        
                            
            
                                    
            
            

                
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    return None

            


            
                                                                                                            
                            
            
                                    
            
            

                
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def detect_mimetype(path):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    try:

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return next(filter(None, (method(path) for method in mimetype_methods)))

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    except StopIteration:

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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        return "application/octet-stream"

            


            
                                                        
            
                                    
            
            

                
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