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4635e976e8
This is slightly involved, see the comments in the code. The GN build now builds a functional lld! Differential Revision: https://reviews.llvm.org/D55606 llvm-svn: 349096
44 lines
1.2 KiB
Python
44 lines
1.2 KiB
Python
#!/usr/bin/env python
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"""Symlinks, or on Windows copies, an existing file to a second location.
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Overwrites the target location if it exists.
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Updates the mtime on a stamp file when done."""
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import argparse
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import errno
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import os
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import sys
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def main():
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument('--stamp', required=True,
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help='name of a file whose mtime is updated on run')
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parser.add_argument('source')
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parser.add_argument('output')
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args = parser.parse_args()
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# FIXME: This should not check the host platform but the target platform
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# (which needs to be passed in as an arg), for cross builds.
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if sys.platform != 'win32':
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try:
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os.symlink(args.source, args.output)
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except OSError as e:
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if e.errno == errno.EEXIST:
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os.remove(args.output)
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os.symlink(args.source, args.output)
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else:
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raise
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else:
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import shutil
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output = args.output + ".exe"
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source = args.source + ".exe"
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shutil.copyfile(os.path.join(os.path.dirname(output), source), output)
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open(args.stamp, 'w') # Update mtime on stamp file.
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if __name__ == '__main__':
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sys.exit(main())
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