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31 lines
1.0 KiB
Python
31 lines
1.0 KiB
Python
#!/usr/bin/env python3
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"""
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Opens each .nupkg file in a directory, and extracts the SPDX license identifiers
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from them if they exist. The SPDX license identifier is stored in the
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'<license type="expression">...</license>' tag in the .nuspec file.
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All found license identifiers will be printed to stdout.
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"""
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from glob import glob
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from pathlib import Path
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import sys
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import xml.etree.ElementTree as ET
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import zipfile
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all_licenses = set()
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if len(sys.argv) < 2:
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print(f"Usage: {sys.argv[0]} DIRECTORY")
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sys.exit(1)
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nupkg_dir = Path(sys.argv[1])
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for nupkg_name in glob("*.nupkg", root_dir=nupkg_dir):
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with zipfile.ZipFile(nupkg_dir / nupkg_name) as nupkg:
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for nuspec_name in [name for name in nupkg.namelist() if name.endswith(".nuspec")]:
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with nupkg.open(nuspec_name) as nuspec_stream:
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nuspec = ET.parse(nuspec_stream)
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licenses = nuspec.findall(".//{*}license[@type='expression']")
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all_licenses.update([license.text for license in licenses])
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print("\n".join(sorted(all_licenses)))
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