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pantsbuild / setup

Scripts for setting up Pants in your repo
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Bootstrap failing when `PEX_MODULE` is set. #105

Closed jsirois closed 2 years ago

jsirois commented 2 years ago

As reported over in https://github.com/pantsbuild/pants/issues/12984, the pants script uses the Pex PEX to create a virtual environment for pantsbuild.pants and this is thwarted if an alternate PEX entrypoint is specified via environment variables:

$ PEX_MODULE=foo ./pants -V
Bootstrapping Pants using /usr/local/bin/python3.8
Creating the virtualenv PEX.
Downloading the Pex PEX.
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   609  100   609    0     0   3736      0 --:--:-- --:--:-- --:--:--  3736
100 3529k  100 3529k    0     0  3211k      0  0:00:01  0:00:01 --:--:-- 4346k
SHA256 fingerprint of https://github.com/pantsbuild/pex/releases/download/v2.1.42/pex verified.
Traceback (most recent call last):
  File "/root/.pex/unzipped_pexes/478cc1fa371ca40aa3e7dafee735ca438d4a243f/.bootstrap/pex/pex.py", line 484, in execute
    exit_value = self._wrap_coverage(self._wrap_profiling, self._execute)
  File "/root/.pex/unzipped_pexes/478cc1fa371ca40aa3e7dafee735ca438d4a243f/.bootstrap/pex/pex.py", line 401, in _wrap_coverage
    return runner(*args)
  File "/root/.pex/unzipped_pexes/478cc1fa371ca40aa3e7dafee735ca438d4a243f/.bootstrap/pex/pex.py", line 432, in _wrap_profiling
    return runner(*args)
  File "/root/.pex/unzipped_pexes/478cc1fa371ca40aa3e7dafee735ca438d4a243f/.bootstrap/pex/pex.py", line 536, in _execute
    return self.execute_entry(self._pex_info_overrides.entry_point)
  File "/root/.pex/unzipped_pexes/478cc1fa371ca40aa3e7dafee735ca438d4a243f/.bootstrap/pex/pex.py", line 667, in execute_entry
    return self.execute_module(entry_point, alter_sys)
  File "/root/.pex/unzipped_pexes/478cc1fa371ca40aa3e7dafee735ca438d4a243f/.bootstrap/pex/pex.py", line 679, in execute_module
    runpy.run_module(module_name, run_name="__main__", alter_sys=alter_sys)
  File "/usr/local/lib/python3.8/runpy.py", line 203, in run_module
    mod_name, mod_spec, code = _get_module_details(mod_name)
  File "/usr/local/lib/python3.8/runpy.py", line 138, in _get_module_details
    raise error("No module named %s" % mod_name)
ImportError: No module named foo
mv: cannot stat '/root/.cache/pants/setup/bootstrap-Linux-x86_64/pants.fvP0e0/virtualenv.pex': No such file or directory
Installing pantsbuild.pants==2.6.1 into a virtual environment at /root/.cache/pants/setup/bootstrap-Linux-x86_64/2.6.1_py38
/usr/local/bin/python3.8: can't open file '/root/.cache/pants/setup/bootstrap-Linux-x86_64/virtualenv-20.4.7/virtualenv.pex': [Errno 2] No such file or directory
The command '/bin/sh -c ./pants --version' returned a non-zero code: 1