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27 lines
847 B
Python
27 lines
847 B
Python
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from mercurial import error
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from mercurial.i18n import _
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import lz4
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def missing(*args, **kwargs):
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raise error.Abort(_('remotefilelog extension requires lz4 support'))
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lz4compress = lzcompresshc = lz4decompress = missing
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try:
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# newer python-lz4 has these functions deprecated as top-level ones,
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# so we are trying to import from lz4.block first
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def _compressHC(*args, **kwargs):
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return lz4.block.compress(*args, mode='high_compression', **kwargs)
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lzcompresshc = _compressHC
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lz4compress = lz4.block.compress
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lz4decompress = lz4.block.decompress
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except (AttributeError, ImportError):
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# ImportError is possible due to DemandImport
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try:
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lzcompresshc = lz4.compressHC
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lz4compress = lz4.compress
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lz4decompress = lz4.decompress
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except (AttributeError, ImportError):
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pass
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