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Move path info caching from BinaryCacheStore to Store

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Caching path info is generally useful. For instance, it speeds up "nix
path-info -rS /run/current-system" (i.e. showing the closure sizes of
all paths in the closure of the current system) from 5.6s to 0.15s.

This also eliminates some APIs like Store::queryDeriver() and
Store::queryReferences().
This commit is contained in:
Eelco Dolstra 2016-04-19 18:50:15 +02:00
parent 608b0265e1
commit e0204f8d46
21 changed files with 318 additions and 353 deletions
Download patch file Download diff file Expand all files Collapse all files

16
src/nix/verify.cc
View file

@ -83,16 +83,16 @@ struct CmdVerify : StorePathsCommand
if (!noContents) {
HashSink sink(info.narHash.type);
HashSink sink(info->narHash.type);
store->narFromPath(storePath, sink);
auto hash = sink.finish();
if (hash.first != info.narHash) {
if (hash.first != info->narHash) {
corrupted = 1;
printMsg(lvlError,
format("path ‘%s’ was modified! expected hash ‘%s’, got ‘%s’")
% storePath % printHash(info.narHash) % printHash(hash.first));
% storePath % printHash(info->narHash) % printHash(hash.first));
}
}
@ -101,7 +101,7 @@ struct CmdVerify : StorePathsCommand
bool good = false;
if (info.ultimate && !sigsNeeded)
if (info->ultimate && !sigsNeeded)
good = true;
else {
@ -114,18 +114,18 @@ struct CmdVerify : StorePathsCommand
for (auto sig : sigs) {
if (sigsSeen.count(sig)) continue;
sigsSeen.insert(sig);
if (info.checkSignature(publicKeys, sig))
if (info->checkSignature(publicKeys, sig))
validSigs++;
}
};
doSigs(info.sigs);
doSigs(info->sigs);
for (auto & store2 : substituters) {
if (validSigs >= actualSigsNeeded) break;
try {
if (!store2->isValidPath(storePath)) continue;
doSigs(store2->queryPathInfo(storePath).sigs);
doSigs(store2->queryPathInfo(storePath)->sigs);
} catch (InvalidPath &) {
} catch (Error & e) {
printMsg(lvlError, format(ANSI_RED "error:" ANSI_NORMAL " %s") % e.what());
}