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fix: make idf_size.py compatible with python3.8

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Previous 6caa4a17ac ("fix: display correct help in the idf_size.py wrapper")
introduced a regression, because it uses exit_on_error parameter for
argparse.ArgumentParser, which was added in python3.9, making
idf_size.py incompatible with idf.py minimal required python3.8.

The objective is to inspect the arguments of idf_size.py using a wrapper
argparse to determine whether the legacy or refactored version should be
initiated, while always displaying help for the underlying version. The
exit_on_error function was previously utilized to prevent argparse from
exiting and displaying help/usage. This replaces exit_on_error with a
workaround that makes the --format argument optional. Since this is the
sole instance where the wrapper argparse might fail, it achieves the
same outcome as using exit_on_error.

Fixes: 6caa4a17ac ("fix: display correct help in the idf_size.py wrapper")
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
This commit is contained in:
Frantisek Hrbata 2024-05-08 11:21:10 +02:00
parent ec50cd7d7e
commit ebc9d02146
1 changed files with 10 additions and 3 deletions
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13
tools/idf_size.py
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@ -13,8 +13,13 @@ if __name__ == '__main__':
# Here the argparse is used only to "peek" into arguments if
# legacy version is requested or if old json format is specified.
# In these two cases the esp_idf_size legacy version is spawned.
parser = argparse.ArgumentParser(exit_on_error=False, add_help=False)
parser.add_argument('--format')
parser = argparse.ArgumentParser(add_help=False)
# Make the --format arg optional, so this argparse instance does not
# fail with an error and the proper underlying help is displayed.
# Note that exit_on_error is supported from python3.9, so this is
# a workaround how to make sure that the args parsing doesn't fail here if idf_size.py
# is invoked e.g. without specifying the format, like "idf_size.py --format".
parser.add_argument('--format', nargs='?')
parser.add_argument('-l', '--legacy', action='store_true', default=os.environ.get('ESP_IDF_SIZE_LEGACY', '0') == '1')
# The sys.argv is parsed with "exit_on_error", but the argparse.ArgumentError
@ -34,7 +39,9 @@ if __name__ == '__main__':
os.environ['ESP_IDF_SIZE_NG'] = '1'
if not rest or '-h' in rest or '--help' in rest:
print(('Note: legacy esp_idf_size version can be invoked by specifying the -l/--legacy '
'option or by setting the ESP_IDF_SIZE_LEGACY environment variable.'))
'option or by setting the ESP_IDF_SIZE_LEGACY environment variable. Additionally, the '
'legacy version is automatically employed when the JSON format is specified for '
'compatibility with previous versions.'))
if args.format is not None:
rest = ['--format', args.format] + rest