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Merge branch 'hash-always-has-type' into better-ca-parse-errors

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This commit is contained in:
John Ericson 2020-07-13 03:02:09 +00:00
commit c466cb2091
7 changed files with 69 additions and 21 deletions
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27
src/nix-prefetch-url/nix-prefetch-url.cc
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@ -153,14 +153,15 @@ static int _main(int argc, char * * argv)
/* If an expected hash is given, the file may already exist in
the store. */
Hash hash(ht), expectedHash(ht);
std::optional<Hash> expectedHash;
Hash hash(ht);
std::optional<StorePath> storePath;
if (args.size() == 2) {
expectedHash = Hash::parseAny(args[1], ht);
const auto recursive = unpack ? FileIngestionMethod::Recursive : FileIngestionMethod::Flat;
storePath = store->makeFixedOutputPath(recursive, expectedHash, name);
storePath = store->makeFixedOutputPath(recursive, *expectedHash, name);
if (store->isValidPath(*storePath))
hash = expectedHash;
hash = *expectedHash;
else
storePath.reset();
}
@ -200,22 +201,12 @@ static int _main(int argc, char * * argv)
tmpFile = unpacked;
}
/* FIXME: inefficient; addToStore() will also hash
this. */
hash = unpack ? hashPath(ht, tmpFile).first : hashFile(ht, tmpFile);
const auto method = unpack ? FileIngestionMethod::Recursive : FileIngestionMethod::Flat;
if (expectedHash != Hash(ht) && expectedHash != hash)
throw Error("hash mismatch for '%1%'", uri);
const auto recursive = unpack ? FileIngestionMethod::Recursive : FileIngestionMethod::Flat;
/* Copy the file to the Nix store. FIXME: if RemoteStore
implemented addToStoreFromDump() and downloadFile()
supported a sink, we could stream the download directly
into the Nix store. */
storePath = store->addToStore(name, tmpFile, recursive, ht);
assert(*storePath == store->makeFixedOutputPath(recursive, hash, name));
auto info = store->addToStoreSlow(name, tmpFile, method, ht, expectedHash);
storePath = info.path;
assert(info.ca);
hash = getContentAddressHash(*info.ca);
}
stopProgressBar();