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Fix license_format to support proper date ranges #43

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Merged
andrewkaufman merged 1 commit into from
Jan 6, 2026
Merged

Fix license_format to support proper date ranges #43

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15 changes: 13 additions & 2 deletions tools/license_format.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
# SPDX-FileCopyrightText: Copyright (c) 2025 The Newton Developers
# SPDX-FileCopyrightText: Copyright (c) 2025-2026 The Newton Developers
# SPDX-License-Identifier: Apache-2.0
import argparse
import logging
Expand All @@ -9,9 +9,20 @@

__copyright = "# SPDX-FileCopyrightText: Copyright (c) {years} The Newton Developers"
__identifier = "# SPDX-License-Identifier: Apache-2.0"
__start_year = 2025

# Build regex to match valid year patterns
# Valid: single year (2025-current) OR range (start_year-end_year) where both <= current year
# Invalid: future years beyond current year
__current_year = datetime.now().year
__single_years = "|".join(str(year) for year in range(__start_year, __current_year + 1))
__range_starts = "|".join(str(year) for year in range(__start_year, __current_year + 1))
__range_ends = "|".join(str(year) for year in range(__start_year, __current_year + 1))
__years_pattern = f"(?:{__single_years}|(?:{__range_starts})-(?:{__range_ends}))"

# Escape special regex characters in the copyright template
__copyright_template = re.escape(__copyright).replace(re.escape("{years}"), "{years}")
__copyright_years = __copyright_template.replace("{years}", f"(?:2025|(?:20[0-9][0-4])-{datetime.now().year})")
__copyright_years = __copyright_template.replace("{years}", __years_pattern)
__copyright_regex = re.compile(f"^{__copyright_years}$")


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