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Add O(1)-memory copyPath() function

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Eelco Dolstra 2018-10-01 17:05:55 +02:00
parent 3913afdd69
commit f1c0b2c0e1
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2 changed files with 11 additions and 0 deletions
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9
src/libutil/archive.cc
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@ -375,4 +375,13 @@ void copyNAR(Source & source, Sink & sink)
}
void copyPath(const Path & from, const Path & to)
{
auto source = sinkToSource([&](Sink & sink) {
dumpPath(from, sink);
});
restorePath(to, *source);
}
}