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Add Store::dumpPath() method

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This allows applying nix-store --verify-path to binary cache stores:

  NIX_REMOTE=https://cache.nixos.org nix-store --verify-path /nix/store/s5c7...
This commit is contained in:
Eelco Dolstra 2016-03-21 17:55:57 +01:00
parent 87295b9844
commit 1c5f73f529
7 changed files with 29 additions and 7 deletions
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4
src/nix-store/nix-store.cc
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@ -783,7 +783,9 @@ static void opVerifyPath(Strings opFlags, Strings opArgs)
Path path = followLinksToStorePath(i);
printMsg(lvlTalkative, format("checking path ‘%1%’...") % path);
ValidPathInfo info = store->queryPathInfo(path);
HashResult current = hashPath(info.narHash.type, path);
HashSink sink(info.narHash.type);
store->dumpPath(path, sink);
auto current = sink.finish();
if (current.first != info.narHash) {
printMsg(lvlError,
format("path ‘%1%’ was modified! expected hash ‘%2%’, got ‘%3%’")