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096c9037bc
Add a wrapper around ar calls for native/cross recipes. This wrapper adds the -D option so that deterministic archives are built for native/cross output. This improves the changes of hash equivalence matches and hence build artefact reuse. We don't need this in the target case since we compile binutils-cross with an option making this the default. We need a wrapper since we need to remove the "u" option and replace it with "D" but also allow things like "--version" to continue to work too. (From OE-Core rev: 59922c95fcb20c66634c5677012d490be2246b0b) Signed-off-by: Jacob Kroon <jacob.kroon@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
33 lines
778 B
Python
Executable File
33 lines
778 B
Python
Executable File
#!/usr/bin/env python3
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#
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# Wrapper around 'ar' that defaults to deterministic archives
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import os
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import shutil
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import sys
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# calculate path to the real 'ar'
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path = os.environ['PATH']
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path = path.replace(os.path.dirname(sys.argv[0]), '')
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real_ar = shutil.which('ar', path=path)
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if len(sys.argv) == 1:
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os.execl(real_ar, 'ar')
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# modify args to mimic 'ar' configured with --default-deterministic-archives
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argv = sys.argv
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if argv[1].startswith('--'):
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# No modifier given
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None
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else:
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# remove the optional '-'
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if argv[1][0] == '-':
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argv[1] = argv[1][1:]
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if 'U' in argv[1]:
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sys.stderr.write("ar: non-deterministic mode requested\n")
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else:
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argv[1] = argv[1].replace('u', '')
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argv[1] = 'D' + argv[1]
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os.execv(real_ar, argv)
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