Changeset - 32b62df5405f
[Not reviewed]
0 3 0
Brett Smith - 4 years ago 2020-05-30 03:39:27
brettcsmith@brettcsmith.org
cliutil: Better implementation of is_main_script.

The old one could return True if you called accrual.main()
directly from one-off test scripts.
3 files changed with 21 insertions and 6 deletions:
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conservancy_beancount/cliutil.py
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...
 
@@ -28,6 +28,8 @@ import sys
 
import traceback
 
import types
 

	
 
from pathlib import Path
 

	
 
from typing import (
 
    Any,
 
    Iterable,
...
 
@@ -134,10 +136,14 @@ def add_version_argument(parser: argparse.ArgumentParser) -> argparse.Action:
 
        help="Show program version and license information",
 
    )
 

	
 
def is_main_script() -> bool:
 
def is_main_script(prog_name: str) -> bool:
 
    """Return true if the caller is the "main" program."""
 
    stack = inspect.stack(context=False)
 
    return len(stack) <= 3 and stack[-1].function.startswith('<')
 
    stack = iter(inspect.stack(context=False))
 
    next(stack)  # Discard the frame for calling this function
 
    caller_filename = next(stack).filename
 
    return all(frame.filename == caller_filename
 
               or Path(frame.filename).stem == prog_name
 
               for frame in stack)
 

	
 
def setup_logger(logger: Union[str, logging.Logger]='',
 
                 loglevel: int=logging.INFO,
conservancy_beancount/reports/accrual.py
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@@ -391,7 +391,7 @@ def main(arglist: Optional[Sequence[str]]=None,
 
         stderr: TextIO=sys.stderr,
 
         config: Optional[configmod.Config]=None,
 
) -> int:
 
    if cliutil.is_main_script():
 
    if cliutil.is_main_script(PROGNAME):
 
        global logger
 
        logger = logging.getLogger(PROGNAME)
 
        sys.excepthook = cliutil.ExceptHook(logger)
tests/test_cliutil.py
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...
 
@@ -27,6 +27,11 @@ import pytest
 

	
 
from conservancy_beancount import cliutil
 

	
 
class AlwaysEqual:
 
    def __eq__(self, other):
 
        return True
 

	
 

	
 
class MockTraceback:
 
    def __init__(self, stack=None, index=0):
 
        if stack is None:
...
 
@@ -91,8 +96,12 @@ def test_excepthook_traceback(caplog):
 
    assert caplog.records
 
    assert caplog.records[-1].message == ''.join(traceback.format_exception(*args))
 

	
 
def test_is_main_script():
 
    assert not cliutil.is_main_script()
 
@pytest.mark.parametrize('prog_name,expected', [
 
    ('', False),
 
    (AlwaysEqual(), True),
 
])
 
def test_is_main_script(prog_name, expected):
 
    assert cliutil.is_main_script(prog_name) == expected
 

	
 
@pytest.mark.parametrize('arg,expected', [
 
    ('debug', logging.DEBUG),
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