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BinaryCacheStore::isValidPath(): Use .narinfo cache

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If a path is in the .narinfo cache, obviously it's valid.
This commit is contained in:
Eelco Dolstra 2016-03-14 12:29:32 +01:00
parent 674c5ff64f
commit e7c76f7274
1 changed files with 9 additions and 0 deletions
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9
src/libstore/binary-cache-store.cc
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@ -141,6 +141,15 @@ NarInfo BinaryCacheStore::readNarInfo(const Path & storePath)
bool BinaryCacheStore::isValidPath(const Path & storePath)
{
{
auto state_(state.lock());
auto res = state_->narInfoCache.get(storePath);
if (res) {
stats.narInfoReadAverted++;
return true;
}
}
// FIXME: this only checks whether a .narinfo with a matching hash
// part exists. So ‘f4kb...-foo’ matches ‘f4kb...-bar’, even
// though they shouldn't. Not easily fixed.