Source code for taucmdr.main

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"""TAU Commander's entry point, run by the ``tau`` launcher as ``python -I -m taucmdr``."""

# Without `-I`, Python has already imported `taucmdr/__init__.py` and `importlib.metadata`, both standard library only.
# Keep it that way: modules shadowing third-party packages on `PYTHONPATH` must not run before the re-exec.
import os
import sys
from contextlib import contextmanager



[docs]
@contextmanager
def _profiler():
    """Profile TAU Commander if ``__TAUCMDR_PROFILE_TAUCMDR__`` is ``stdout`` or a file name."""
    profile_taucmdr = os.environ.get('__TAUCMDR_PROFILE_TAUCMDR__')
    if not profile_taucmdr:
        yield
    else:
        from cProfile import Profile
        prof = Profile()
        prof.enable()
        try:
            yield
        finally:
            prof.disable()
            if profile_taucmdr == "stdout":
                prof.print_stats(sort="tottime")
            else:
                prof.dump_stats(profile_taucmdr)
                print("Profile written to '%s'" % profile_taucmdr)
                print("Hint: Use `pyprof2calltree -k -i '%s'` to view it" % profile_taucmdr)




[docs]
def main():
    """Run the ``tau`` command line, first restarting Python in isolated mode if it isn't already."""
    if not sys.flags.isolated:
        launcher = os.path.join(os.path.dirname(sys.executable), 'tau')
        os.environ.setdefault('__TAUCMDR_SCRIPT__', launcher if os.path.isfile(launcher) else 'tau')
        os.execv(sys.executable, [sys.executable, '-I', '-m', 'taucmdr', *sys.argv[1:]])
    with _profiler():
        from taucmdr.cli.commands.__main__ import COMMAND
        sys.exit(COMMAND.main(sys.argv[1:]))



if __name__ == '__main__':
    main()
Source code for taucmdr.__main__

Source code for taucmdr.main
