~bzr-pqm/bzr/bzr.dev

(jam) Delay generating a delta index until we call make_delta()
[saves a lot of memory during commit of large files.]

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removed removed

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After calling this, the compressor should no longer be used

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"""

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# TODO: this causes us to 'bloat' to 2x the size of content in the

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# group. This has an impact for 'commit' of large objects.

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# One possibility is to use self._content_chunks, and be lazy and

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# only fill out self._content as a full string when we actually

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# need it. That would at least drop the peak memory consumption

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# for 'commit' down to ~1x the size of the largest file, at a

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# cost of increased complexity within this code. 2x is still <<

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# 3x the size of the largest file, so we are doing ok.

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content = ''.join(self.chunks)

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self.chunks = None

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self._delta_index = None