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28 lines
1.3 KiB
Bash
28 lines
1.3 KiB
Bash
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#!/bin/bash
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# Cache-bisect is
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# roughly based on git-bisect, but uses SVN and caches every build tree
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# to maximize performance. The idea here is that if the first few tests
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# happen very quickly, and give plausible results, you can have
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# confidence that you can just leave it running. Without that confidence
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# I'd be continually thinking "Is the bisect still working, maybe I
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# should check" so the bisect would be taking up my mental space. With
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# cache-bisect, I can fire-and-forget, leaving the CPU to do the menial
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# tasks while I think about other things. Additionally caching the
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# build-trees cuts down on the amount of bandwidth required on the SVN
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# server
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# It uses three levels
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# 1) At the bottom level, it bisects much like git-bisect
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# 2) At the second level, it bisects, but only over cached revisions.
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# 3) The the top level it does what I refer to as a "multisect". The
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# idea is that you may not know which revision was a good revision, and
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# picking revision 1 as the "good" revision is not only mildly wasteful
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# but is likely to produce misleading results. Instead it starts
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# stepping backwards, first trying 1.6.0, and then going backwards
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# through trunk.
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KT=$(cd $(dirname "$0") && pwd)
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$KT/cache-bisect.py "$@" | tee out/cache-bisect-$USER.log
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