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from coalib.bears.requirements.PackageRequirement import PackageRequirement |
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import shutil |
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class GoRequirement(PackageRequirement): |
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""" |
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This class is a subclass of ``PackageRequirement``, and helps specifying |
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requirements from ``go``, without using the manager name. |
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""" |
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def __init__(self, package, version="", flag=""): |
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""" |
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Constructs a new ``GoRequirement``, using the ``PackageRequirement`` |
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constructor. |
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>>> pr = GoRequirement('github.com/golang/lint/golint', '19.2', '-u') |
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>>> pr.manager |
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'go' |
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>>> pr.package |
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'github.com/golang/lint/golint' |
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>>> pr.version |
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'19.2' |
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>>> pr.flag |
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'-u' |
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:param package: A string with the name of the package to be installed. |
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:param version: A version string. Leave empty to specify latest version. |
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:param flag: A string that specifies any additional flags, that |
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are passed to the manager. |
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""" |
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PackageRequirement.__init__(self, 'go', package, version) |
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self.flag = flag |
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def install_command(self): |
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""" |
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Creates the installation command for the instance of the class. |
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>>> pr = PipRequirement('github.com/golang/lint/golint', '', '-u') |
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>>> pr.install_command() |
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'go get -u github.com/golang/lint/golint' |
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:param return: A string with the installation command. |
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""" |
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return "go get {} {}".format(self.flag, self.package) |
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def is_installed(self): |
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""" |
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Checks if the dependency is installed. |
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>>> pr = GoRequirement('golint') |
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>>> pr.is_installed() |
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True |
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>>> pr = GoRequirement('some_package') |
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>>> pr.is_installed() |
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False |
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:param return: True if dependency is installed, false otherwise. |
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""" |
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if shutil.which(self.package): |
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return True |
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else: |
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return False |
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coala-analyzer /
coala
