| 1 |  |  | from coalib.bears.requirements.PackageRequirement import PackageRequirement | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | from coalib.misc.Shell import call_without_output | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | import platform | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 6 |  | View Code Duplication | class NpmRequirement(PackageRequirement): | 
                            
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                | 7 |  |  |     """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |     This class is a subclass of ``PackageRequirement``, and helps specifying | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |     requirements from ``npm``, without using the manager name. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |     """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |     def __init__(self, package, version=""): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |         """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |         Constructs a new ``NpmRequirement``, using the ``PackageRequirement`` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |         constructor. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |         >>> pr = NpmRequirement('ramllint', '6.2') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |         >>> pr.manager | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |         'npm' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |         >>> pr.package | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |         'ramllint' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |         >>> pr.version | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |         '6.2' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |         :param package: A string with the name of the package to be installed. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |         :param version: A version string. Leave empty to specify latest version. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |         """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |         PackageRequirement.__init__(self, 'npm', package, version) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |     def install_command(self): | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |         """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |         Creates the installation command for the instance of the class. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |         >>> NpmRequirement('alex', '2').install_command() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |         'npm install alex@2' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |         >>> NpmRequirement('alex').install_command() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |         'npm install alex' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |         :param return: A string with the installation command. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |         """ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |         if self.version: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |             return "npm install {}@{}".format(self.package, self.version) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |         return "npm install {}".format(self.package) | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 45 |  |  |  | 
            
                                                        
            
                                    
            
            
                | 46 |  |  |     def is_installed(self): | 
            
                                                        
            
                                    
            
            
                | 47 |  |  |         """ | 
            
                                                        
            
                                    
            
            
                | 48 |  |  |         Checks if the dependency is installed. | 
            
                                                        
            
                                    
            
            
                | 49 |  |  |  | 
            
                                                        
            
                                    
            
            
                | 50 |  |  |         :param return: True if dependency is installed, false otherwise. | 
            
                                                        
            
                                    
            
            
                | 51 |  |  |         """ | 
            
                                                        
            
                                    
            
            
                | 52 |  |  |         cmd = ['npm', 'show', self.package] | 
            
                                                        
            
                                    
            
            
                | 53 |  |  |         if platform.system() == 'Windows':  # pragma: no cover | 
            
                                                        
            
                                    
            
            
                | 54 |  |  |             cmd = ['cmd', '/c'] + cmd | 
            
                                                        
            
                                    
            
            
                | 55 |  |  |         return not call_without_output(cmd) | 
            
                                                        
            
                                    
            
            
                | 56 |  |  |  |