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1
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from contextlib import contextmanager |
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2
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import os |
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3
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import pip |
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4
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import pkg_resources |
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5
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import site |
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6
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import sys |
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7
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from unittest.case import SkipTest |
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8
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9
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if sys.version_info < (3, 4): |
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10
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import imp as importlib |
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11
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else: |
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12
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import importlib |
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13
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14
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from coalib.misc.ContextManagers import retrieve_stdout |
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15
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16
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17
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def execute_coala(func, binary, *args): |
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18
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""" |
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19
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Executes the main function with the given argument string from given module. |
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20
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21
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:param function: A main function from coala_json, coala_ci module etc. |
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22
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:param binary: A binary to execute coala test |
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23
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:return: A tuple holding a return value first and |
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24
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a stdout output as second element. |
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25
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""" |
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26
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sys.argv = [binary] + list(args) |
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27
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with retrieve_stdout() as stdout: |
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28
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retval = func() |
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29
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return retval, stdout.getvalue() |
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30
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31
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32
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def teardown_bear_test_module(new_sys_path): |
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33
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""" |
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34
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Removes the coala bears test module from user directory and |
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35
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reimport pkg_resources. |
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36
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""" |
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37
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if pip.main(["uninstall", "-y", "coala-bears-test-module"]) == 0: |
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38
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importlib.reload(site) |
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39
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importlib.reload(pkg_resources) |
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40
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else: |
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41
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raise AssertionError("Unable to uninstall coala-bears-test-module") |
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42
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43
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44
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def setup_bear_test_module(): |
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45
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""" |
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46
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We install coala bears test module using pip and reload pkg_resource to |
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47
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reflect the change. |
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48
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We first try to install it to the normal directory which works when using |
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49
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pyenv or virtualenv. If this requires sudo or is not writable, we try |
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50
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installing with the --user flag. if neither of these works, we skip the |
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51
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test. |
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52
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""" |
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53
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bears_test_module = os.path.join(os.path.dirname(__file__), |
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54
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"coala_bears_test_module") |
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55
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if (pip.main(["install", "-I", bears_test_module]) == 0 or |
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56
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pip.main(["install", "--user", "-I", bears_test_module]) == 0): |
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57
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importlib.reload(site) # Update PATH if installed with --user |
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58
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importlib.reload(pkg_resources) # Update entrypoints |
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59
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else: |
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60
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raise SkipTest("Unable to install coala_bears_test_module") |
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61
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62
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63
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@contextmanager |
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64
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def bear_test_module(): |
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65
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old_sys_path = setup_bear_test_module() |
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66
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try: |
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67
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yield |
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68
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finally: |
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69
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teardown_bear_test_module(old_sys_path) |
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70
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coala-analyzer /
coala
