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This will cause `make sdist` to fail on platforms which create hard links of symbolic links as regular files, such as MacOS (Darwin). This prevents accidental creation of an sdist tarball without the necessary symbolic links.
51 lines
1.3 KiB
Python
Executable file
51 lines
1.3 KiB
Python
Executable file
#!/usr/bin/env python
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"""Checks for link behavior required for sdist to retain symlinks."""
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import os
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import platform
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import shutil
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import sys
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import tempfile
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def main():
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"""Main program entry point."""
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temp_dir = tempfile.mkdtemp()
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target_path = os.path.join(temp_dir, 'file.txt')
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symlink_path = os.path.join(temp_dir, 'symlink.txt')
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hardlink_path = os.path.join(temp_dir, 'hardlink.txt')
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try:
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with open(target_path, 'w'):
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pass
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os.symlink(target_path, symlink_path)
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os.link(symlink_path, hardlink_path)
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if not os.path.islink(symlink_path):
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abort('Symbolic link not created.')
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if not os.path.islink(hardlink_path):
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# known issue on MacOS (Darwin)
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abort('Hard link of symbolic link created as a regular file.')
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finally:
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shutil.rmtree(temp_dir)
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def abort(reason):
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"""
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:type reason: str
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"""
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sys.exit('ERROR: %s\n'
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'This will prevent symbolic links from being preserved in the resulting tarball.\n'
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'Aborting creation of sdist on platform: %s'
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% (reason, platform.system()))
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if __name__ == '__main__':
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main()
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