1 | import platform |
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2 | |||
3 | from coalib.bears.requirements.PackageRequirement import PackageRequirement |
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4 | |||
5 | |||
6 | class DistributionRequirement(PackageRequirement): |
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7 | """ |
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8 | This class is a subclass of ``PackageRequirement``, and helps specifying |
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9 | distribution specific requirements, without using the manager name. |
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10 | """ |
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11 | |||
12 | def __init__(self, **manager_commands): |
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13 | """ |
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14 | Constructs a new ``DistributionRequirement``, using the |
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15 | ``PackageRequirement`` constructor. |
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16 | |||
17 | >>> dr = DistributionRequirement(apt_get='libclang', dnf='libclangg') |
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18 | >>> dr.package['apt_get'] |
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19 | 'libclang' |
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20 | >>> dr.package['dnf'] |
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21 | 'libclangg' |
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22 | |||
23 | :param manager_commands: comma separated (manager='package') pairs. |
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24 | """ |
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25 | self.package = manager_commands |
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26 | |||
27 | def install_command(self): |
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28 | """ |
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29 | Creates the installation command for the instance of the class. |
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30 | |||
31 | :param return: A string with the installation command. An empty string |
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32 | if the command could not be supplied. |
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33 | """ |
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34 | manager_dict = {'Fedora': 'dnf', |
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35 | 'Ubuntu': 'apt_get', |
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36 | 'Debian': 'apt_get', |
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37 | 'SuSE': 'zypper', |
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38 | 'redhat': 'yum', |
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39 | 'arch': 'pacman'} |
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40 | |||
41 | if (platform.linux_distribution()[0] in manager_dict.keys() and |
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42 | manager_dict[platform.linux_distribution()[0]] |
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43 | in self.package.keys()): |
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44 | manager = manager_dict[platform.linux_distribution()[0]] |
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45 | return [manager.replace("_", "-"), |
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46 | 'install', self.package[manager]] |
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47 | else: |
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48 | package_possibilites = ( |
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49 | {package for package in self.package.values()}) |
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50 | print('The package could not be automatically installed on your ' |
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51 | 'operating system. Please try installing it manually. It' |
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52 | ' should look like this: ' + repr(package_possibilites)) |
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53 | raise OSError |
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54 |
It is generally advisable to initialize the super-class by calling its
__init__
method: