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Merge pull request #3730 from obsidiansystems/better-ca-parse-errors

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Improve hash parsing and errors
This commit is contained in:
Eelco Dolstra 2020-08-05 16:33:07 +02:00 committed by GitHub
parent 75f220a595 d3452a5ed6
commit b91dc7ebad
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GPG key ID: 4AEE18F83AFDEB23
23 changed files with 193 additions and 102 deletions
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4
perl/lib/Nix/Store.xs
View file

@ -224,7 +224,7 @@ SV * hashString(char * algo, int base32, char * s)
SV * convertHash(char * algo, char * s, int toBase32)
PPCODE:
try {
Hash h(s, parseHashType(algo));
auto h = Hash::parseAny(s, parseHashType(algo));
string s = h.to_string(toBase32 ? Base32 : Base16, false);
XPUSHs(sv_2mortal(newSVpv(s.c_str(), 0)));
} catch (Error & e) {
@ -285,7 +285,7 @@ SV * addToStore(char * srcPath, int recursive, char * algo)
SV * makeFixedOutputPath(int recursive, char * algo, char * hash, char * name)
PPCODE:
try {
Hash h(hash, parseHashType(algo));
auto h = Hash::parseAny(hash, parseHashType(algo));
auto method = recursive ? FileIngestionMethod::Recursive : FileIngestionMethod::Flat;
auto path = store()->makeFixedOutputPath(method, h, name);
XPUSHs(sv_2mortal(newSVpv(store()->printStorePath(path).c_str(), 0)));

2
src/libexpr/primops/fetchMercurial.cc
View file

@ -31,7 +31,7 @@ static void prim_fetchMercurial(EvalState & state, const Pos & pos, Value * * ar
// be both a revision or a branch/tag name.
auto value = state.forceStringNoCtx(*attr.value, *attr.pos);
if (std::regex_match(value, revRegex))
rev = Hash(value, htSHA1);
rev = Hash::parseAny(value, htSHA1);
else
ref = value;
}

11
src/libfetchers/fetchers.cc
View file

@ -200,9 +200,12 @@ std::string Input::getType() const
std::optional<Hash> Input::getNarHash() const
{
if (auto s = maybeGetStrAttr(attrs, "narHash"))
// FIXME: require SRI hash.
return newHashAllowEmpty(*s, htSHA256);
if (auto s = maybeGetStrAttr(attrs, "narHash")) {
auto hash = s->empty() ? Hash(htSHA256) : Hash::parseSRI(*s);
if (hash.type != htSHA256)
throw UsageError("narHash must use SHA-256");
return hash;
}
return {};
}
@ -216,7 +219,7 @@ std::optional<std::string> Input::getRef() const
std::optional<Hash> Input::getRev() const
{
if (auto s = maybeGetStrAttr(attrs, "rev"))
return Hash(*s, htSHA1);
return Hash::parseAny(*s, htSHA1);
return {};
}

6
src/libfetchers/git.cc
View file

@ -293,14 +293,14 @@ struct GitInputScheme : InputScheme
if (!input.getRev())
input.attrs.insert_or_assign("rev",
Hash(chomp(runProgram("git", true, { "-C", actualUrl, "rev-parse", *input.getRef() })), htSHA1).gitRev());
Hash::parseAny(chomp(runProgram("git", true, { "-C", actualUrl, "rev-parse", *input.getRef() })), htSHA1).gitRev());
repoDir = actualUrl;
} else {
if (auto res = getCache()->lookup(store, mutableAttrs)) {
auto rev2 = Hash(getStrAttr(res->first, "rev"), htSHA1);
auto rev2 = Hash::parseAny(getStrAttr(res->first, "rev"), htSHA1);
if (!input.getRev() || input.getRev() == rev2) {
input.attrs.insert_or_assign("rev", rev2.gitRev());
return makeResult(res->first, std::move(res->second));
@ -370,7 +370,7 @@ struct GitInputScheme : InputScheme
}
if (!input.getRev())
input.attrs.insert_or_assign("rev", Hash(chomp(readFile(localRefFile)), htSHA1).gitRev());
input.attrs.insert_or_assign("rev", Hash::parseAny(chomp(readFile(localRefFile)), htSHA1).gitRev());
}
bool isShallow = chomp(runProgram("git", true, { "-C", repoDir, "rev-parse", "--is-shallow-repository" })) == "true";

8
src/libfetchers/github.cc
View file

@ -29,7 +29,7 @@ struct GitArchiveInputScheme : InputScheme
if (path.size() == 2) {
} else if (path.size() == 3) {
if (std::regex_match(path[2], revRegex))
rev = Hash(path[2], htSHA1);
rev = Hash::parseAny(path[2], htSHA1);
else if (std::regex_match(path[2], refRegex))
ref = path[2];
else
@ -41,7 +41,7 @@ struct GitArchiveInputScheme : InputScheme
if (name == "rev") {
if (rev)
throw BadURL("URL '%s' contains multiple commit hashes", url.url);
rev = Hash(value, htSHA1);
rev = Hash::parseAny(value, htSHA1);
}
else if (name == "ref") {
if (!std::regex_match(value, refRegex))
@ -191,7 +191,7 @@ struct GitHubInputScheme : GitArchiveInputScheme
readFile(
store->toRealPath(
downloadFile(store, url, "source", false).storePath)));
auto rev = Hash(std::string { json["sha"] }, htSHA1);
auto rev = Hash::parseAny(std::string { json["sha"] }, htSHA1);
debug("HEAD revision for '%s' is %s", url, rev.gitRev());
return rev;
}
@ -235,7 +235,7 @@ struct GitLabInputScheme : GitArchiveInputScheme
readFile(
store->toRealPath(
downloadFile(store, url, "source", false).storePath)));
auto rev = Hash(std::string(json[0]["id"]), htSHA1);
auto rev = Hash::parseAny(std::string(json[0]["id"]), htSHA1);
debug("HEAD revision for '%s' is %s", url, rev.gitRev());
return rev;
}

4
src/libfetchers/indirect.cc
View file

@ -18,7 +18,7 @@ struct IndirectInputScheme : InputScheme
if (path.size() == 1) {
} else if (path.size() == 2) {
if (std::regex_match(path[1], revRegex))
rev = Hash(path[1], htSHA1);
rev = Hash::parseAny(path[1], htSHA1);
else if (std::regex_match(path[1], refRegex))
ref = path[1];
else
@ -29,7 +29,7 @@ struct IndirectInputScheme : InputScheme
ref = path[1];
if (!std::regex_match(path[2], revRegex))
throw BadURL("in flake URL '%s', '%s' is not a commit hash", url.url, path[2]);
rev = Hash(path[2], htSHA1);
rev = Hash::parseAny(path[2], htSHA1);
} else
throw BadURL("GitHub URL '%s' is invalid", url.url);

4
src/libfetchers/mercurial.cc
View file

@ -209,7 +209,7 @@ struct MercurialInputScheme : InputScheme
});
if (auto res = getCache()->lookup(store, mutableAttrs)) {
auto rev2 = Hash(getStrAttr(res->first, "rev"), htSHA1);
auto rev2 = Hash::parseAny(getStrAttr(res->first, "rev"), htSHA1);
if (!input.getRev() || input.getRev() == rev2) {
input.attrs.insert_or_assign("rev", rev2.gitRev());
return makeResult(res->first, std::move(res->second));
@ -252,7 +252,7 @@ struct MercurialInputScheme : InputScheme
runProgram("hg", true, { "log", "-R", cacheDir, "-r", revOrRef, "--template", "{node} {rev} {branch}" }));
assert(tokens.size() == 3);
input.attrs.insert_or_assign("rev", Hash(tokens[0], htSHA1).gitRev());
input.attrs.insert_or_assign("rev", Hash::parseAny(tokens[0], htSHA1).gitRev());
auto revCount = std::stoull(tokens[1]);
input.attrs.insert_or_assign("ref", tokens[2]);

66
src/libstore/content-address.cc
View file

@ -1,4 +1,6 @@
#include "args.hh"
#include "content-address.hh"
#include "split.hh"
namespace nix {
@ -40,38 +42,46 @@ std::string renderContentAddress(ContentAddress ca) {
}
ContentAddress parseContentAddress(std::string_view rawCa) {
auto prefixSeparator = rawCa.find(':');
if (prefixSeparator != string::npos) {
auto prefix = string(rawCa, 0, prefixSeparator);
auto rest = rawCa;
std::string_view prefix;
{
auto optPrefix = splitPrefixTo(rest, ':');
if (!optPrefix)
throw UsageError("not a content address because it is not in the form \"<prefix>:<rest>\": %s", rawCa);
prefix = *optPrefix;
}
auto parseHashType_ = [&](){
auto hashTypeRaw = splitPrefixTo(rest, ':');
if (!hashTypeRaw)
throw UsageError("content address hash must be in form \"<algo>:<hash>\", but found: %s", rawCa);
HashType hashType = parseHashType(*hashTypeRaw);
return std::move(hashType);
};
// Switch on prefix
if (prefix == "text") {
auto hashTypeAndHash = rawCa.substr(prefixSeparator+1, string::npos);
Hash hash = Hash(string(hashTypeAndHash));
if (hash.type != htSHA256) {
throw Error("parseContentAddress: the text hash should have type SHA256");
}
return TextHash { hash };
// No parsing of the method, "text" only support flat.
HashType hashType = parseHashType_();
if (hashType != htSHA256)
throw Error("text content address hash should use %s, but instead uses %s",
printHashType(htSHA256), printHashType(hashType));
return TextHash {
.hash = Hash::parseNonSRIUnprefixed(rest, std::move(hashType)),
};
} else if (prefix == "fixed") {
// This has to be an inverse of makeFixedOutputCA
auto methodAndHash = rawCa.substr(prefixSeparator+1, string::npos);
if (methodAndHash.substr(0,2) == "r:") {
std::string_view hashRaw = methodAndHash.substr(2,string::npos);
// Parse method
auto method = FileIngestionMethod::Flat;
if (splitPrefix(rest, "r:"))
method = FileIngestionMethod::Recursive;
HashType hashType = parseHashType_();
return FixedOutputHash {
.method = FileIngestionMethod::Recursive,
.hash = Hash(string(hashRaw)),
.method = method,
.hash = Hash::parseNonSRIUnprefixed(rest, std::move(hashType)),
};
} else {
std::string_view hashRaw = methodAndHash;
return FixedOutputHash {
.method = FileIngestionMethod::Flat,
.hash = Hash(string(hashRaw)),
};
}
} else {
throw Error("parseContentAddress: format not recognized; has to be text or fixed");
}
} else {
throw Error("Not a content address because it lacks an appropriate prefix");
}
} else
throw UsageError("content address prefix \"%s\" is unrecognized. Recogonized prefixes are \"text\" or \"fixed\"", prefix);
};
std::optional<ContentAddress> parseContentAddressOpt(std::string_view rawCaOpt) {

2
src/libstore/daemon.cc
View file

@ -698,7 +698,7 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
auto deriver = readString(from);
if (deriver != "")
info.deriver = store->parseStorePath(deriver);
info.narHash = Hash(readString(from), htSHA256);
info.narHash = Hash::parseAny(readString(from), htSHA256);
info.references = readStorePaths<StorePathSet>(*store, from);
from >> info.registrationTime >> info.narSize >> info.ultimate;
info.sigs = readStrings<StringSet>(from);

4
src/libstore/derivations.cc
View file

@ -127,7 +127,7 @@ static DerivationOutput parseDerivationOutput(const Store & store, std::istrings
.output = DerivationOutputFixed {
.hash = FixedOutputHash {
.method = std::move(method),
.hash = Hash(hash, hashType),
.hash = Hash::parseNonSRIUnprefixed(hash, hashType),
},
}
};
@ -435,7 +435,7 @@ static DerivationOutput readDerivationOutput(Source & in, const Store & store)
.output = DerivationOutputFixed {
.hash = FixedOutputHash {
.method = std::move(method),
.hash = Hash(hash, hashType),
.hash = Hash::parseNonSRIUnprefixed(hash, hashType),
},
}
};

2
src/libstore/legacy-ssh-store.cc
View file

@ -113,7 +113,7 @@ struct LegacySSHStore : public Store
if (GET_PROTOCOL_MINOR(conn->remoteVersion) >= 4) {
auto s = readString(conn->from);
info->narHash = s.empty() ? std::optional<Hash>{} : Hash{s};
info->narHash = s.empty() ? std::optional<Hash>{} : Hash::parseAnyPrefixed(s);
info->ca = parseContentAddressOpt(readString(conn->from));
info->sigs = readStrings<StringSet>(conn->from);
}

2
src/libstore/local-store.cc
View file

@ -640,7 +640,7 @@ void LocalStore::queryPathInfoUncached(const StorePath & path,
info->id = useQueryPathInfo.getInt(0);
try {
info->narHash = Hash(useQueryPathInfo.getStr(1));
info->narHash = Hash::parseAnyPrefixed(useQueryPathInfo.getStr(1));
} catch (BadHash & e) {
throw Error("in valid-path entry for '%s': %s", printStorePath(path), e.what());
}

4
src/libstore/nar-info-disk-cache.cc
View file

@ -193,9 +193,9 @@ public:
narInfo->url = queryNAR.getStr(2);
narInfo->compression = queryNAR.getStr(3);
if (!queryNAR.isNull(4))
narInfo->fileHash = Hash(queryNAR.getStr(4));
narInfo->fileHash = Hash::parseAnyPrefixed(queryNAR.getStr(4));
narInfo->fileSize = queryNAR.getInt(5);
narInfo->narHash = Hash(queryNAR.getStr(6));
narInfo->narHash = Hash::parseAnyPrefixed(queryNAR.getStr(6));
narInfo->narSize = queryNAR.getInt(7);
for (auto & r : tokenizeString<Strings>(queryNAR.getStr(8), " "))
narInfo->references.insert(StorePath(r));

2
src/libstore/nar-info.cc
View file

@ -12,7 +12,7 @@ NarInfo::NarInfo(const Store & store, const std::string & s, const std::string &
auto parseHashField = [&](const string & s) {
try {
return Hash(s);
return Hash::parseAnyPrefixed(s);
} catch (BadHash &) {
throw corrupt();
}

2
src/libstore/remote-store.cc
View file

@ -422,7 +422,7 @@ void RemoteStore::queryPathInfoUncached(const StorePath & path,
info = std::make_shared<ValidPathInfo>(StorePath(path));
auto deriver = readString(conn->from);
if (deriver != "") info->deriver = parseStorePath(deriver);
info->narHash = Hash(readString(conn->from), htSHA256);
info->narHash = Hash::parseAny(readString(conn->from), htSHA256);
info->references = readStorePaths<StorePathSet>(*this, conn->from);
conn->from >> info->registrationTime >> info->narSize;
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 16) {

2
src/libstore/store-api.cc
View file

@ -876,7 +876,7 @@ std::optional<ValidPathInfo> decodeValidPathInfo(const Store & store, std::istre
if (hashGiven) {
string s;
getline(str, s);
info.narHash = Hash(s, htSHA256);
info.narHash = Hash::parseAny(s, htSHA256);
getline(str, s);
if (!string2Int(s, info.narSize)) throw Error("number expected");
}

93
src/libutil/hash.cc
View file

@ -7,6 +7,7 @@
#include "args.hh"
#include "hash.hh"
#include "archive.hh"
#include "split.hh"
#include "util.hh"
#include <sys/types.h>
@ -15,6 +16,7 @@
namespace nix {
static size_t regularHashSize(HashType type) {
switch (type) {
case htMD5: return md5HashSize;
@ -25,10 +27,11 @@ static size_t regularHashSize(HashType type) {
abort();
}
std::set<std::string> hashTypes = { "md5", "sha1", "sha256", "sha512" };
void Hash::init()
Hash::Hash(HashType type) : type(type)
{
hashSize = regularHashSize(type);
assert(hashSize <= maxHashSize);
@ -133,57 +136,89 @@ std::string Hash::to_string(Base base, bool includeType) const
return s;
}
Hash::Hash(std::string_view s, HashType type) : Hash(s, std::optional { type }) { }
Hash::Hash(std::string_view s) : Hash(s, std::optional<HashType>{}) { }
Hash::Hash(std::string_view original, std::optional<HashType> optType)
{
Hash Hash::parseSRI(std::string_view original) {
auto rest = original;
size_t pos = 0;
// Parse the has type before the separater, if there was one.
auto hashRaw = splitPrefixTo(rest, '-');
if (!hashRaw)
throw BadHash("hash '%s' is not SRI", original);
HashType parsedType = parseHashType(*hashRaw);
return Hash(rest, parsedType, true);
}
// Mutates the string to eliminate the prefixes when found
static std::pair<std::optional<HashType>, bool> getParsedTypeAndSRI(std::string_view & rest) {
bool isSRI = false;
// Parse the has type before the separater, if there was one.
std::optional<HashType> optParsedType;
{
auto sep = rest.find(':');
if (sep == std::string_view::npos) {
sep = rest.find('-');
if (sep != std::string_view::npos)
auto hashRaw = splitPrefixTo(rest, ':');
if (!hashRaw) {
hashRaw = splitPrefixTo(rest, '-');
if (hashRaw)
isSRI = true;
}
if (sep != std::string_view::npos) {
auto hashRaw = rest.substr(0, sep);
optParsedType = parseHashType(hashRaw);
rest = rest.substr(sep + 1);
}
if (hashRaw)
optParsedType = parseHashType(*hashRaw);
}
return {optParsedType, isSRI};
}
Hash Hash::parseAnyPrefixed(std::string_view original)
{
auto rest = original;
auto [optParsedType, isSRI] = getParsedTypeAndSRI(rest);
// Either the string or user must provide the type, if they both do they
// must agree.
if (!optParsedType && !optType) {
if (!optParsedType)
throw BadHash("hash '%s' does not include a type", rest);
return Hash(rest, *optParsedType, isSRI);
}
Hash Hash::parseAny(std::string_view original, std::optional<HashType> optType)
{
auto rest = original;
auto [optParsedType, isSRI] = getParsedTypeAndSRI(rest);
// Either the string or user must provide the type, if they both do they
// must agree.
if (!optParsedType && !optType)
throw BadHash("hash '%s' does not include a type, nor is the type otherwise known from context.", rest);
} else {
this->type = optParsedType ? *optParsedType : *optType;
if (optParsedType && optType && *optParsedType != *optType)
else if (optParsedType && optType && *optParsedType != *optType)
throw BadHash("hash '%s' should have type '%s'", original, printHashType(*optType));
}
init();
HashType hashType = optParsedType ? *optParsedType : *optType;
return Hash(rest, hashType, isSRI);
}
Hash Hash::parseNonSRIUnprefixed(std::string_view s, HashType type)
{
return Hash(s, type, false);
}
Hash::Hash(std::string_view rest, HashType type, bool isSRI)
: Hash(type)
{
if (!isSRI && rest.size() == base16Len()) {
auto parseHexDigit = [&](char c) {
if (c >= '0' && c <= '9') return c - '0';
if (c >= 'A' && c <= 'F') return c - 'A' + 10;
if (c >= 'a' && c <= 'f') return c - 'a' + 10;
throw BadHash("invalid base-16 hash '%s'", original);
throw BadHash("invalid base-16 hash '%s'", rest);
};
for (unsigned int i = 0; i < hashSize; i++) {
hash[i] =
parseHexDigit(rest[pos + i * 2]) << 4
| parseHexDigit(rest[pos + i * 2 + 1]);
parseHexDigit(rest[i * 2]) << 4
| parseHexDigit(rest[i * 2 + 1]);
}
}
@ -195,7 +230,7 @@ Hash::Hash(std::string_view original, std::optional<HashType> optType)
for (digit = 0; digit < base32Chars.size(); ++digit) /* !!! slow */
if (base32Chars[digit] == c) break;
if (digit >= 32)
throw BadHash("invalid base-32 hash '%s'", original);
throw BadHash("invalid base-32 hash '%s'", rest);
unsigned int b = n * 5;
unsigned int i = b / 8;
unsigned int j = b % 8;
@ -205,7 +240,7 @@ Hash::Hash(std::string_view original, std::optional<HashType> optType)
hash[i + 1] |= digit >> (8 - j);
} else {
if (digit >> (8 - j))
throw BadHash("invalid base-32 hash '%s'", original);
throw BadHash("invalid base-32 hash '%s'", rest);
}
}
}
@ -213,7 +248,7 @@ Hash::Hash(std::string_view original, std::optional<HashType> optType)
else if (isSRI || rest.size() == base64Len()) {
auto d = base64Decode(rest);
if (d.size() != hashSize)
throw BadHash("invalid %s hash '%s'", isSRI ? "SRI" : "base-64", original);
throw BadHash("invalid %s hash '%s'", isSRI ? "SRI" : "base-64", rest);
assert(hashSize);
memcpy(hash, d.data(), hashSize);
}
@ -231,7 +266,7 @@ Hash newHashAllowEmpty(std::string hashStr, std::optional<HashType> ht)
warn("found empty hash, assuming '%s'", h.to_string(SRI, true));
return h;
} else
return Hash(hashStr, ht);
return Hash::parseAny(hashStr, ht);
}

26
src/libutil/hash.hh
View file

@ -34,21 +34,31 @@ struct Hash
HashType type;
/* Create a zero-filled hash object. */
Hash(HashType type) : type(type) { init(); };
Hash(HashType type);
/* Initialize the hash from a string representation, in the format
/* Parse the hash from a string representation in the format
"[<type>:]<base16|base32|base64>" or "<type>-<base64>" (a
Subresource Integrity hash expression). If the 'type' argument
is not present, then the hash type must be specified in the
string. */
Hash(std::string_view s, std::optional<HashType> type);
// type must be provided
Hash(std::string_view s, HashType type);
// hash type must be part of string
Hash(std::string_view s);
static Hash parseAny(std::string_view s, std::optional<HashType> type);
void init();
/* Parse a hash from a string representation like the above, except the
type prefix is mandatory is there is no separate arguement. */
static Hash parseAnyPrefixed(std::string_view s);
/* Parse a plain hash that musst not have any prefix indicating the type.
The type is passed in to disambiguate. */
static Hash parseNonSRIUnprefixed(std::string_view s, HashType type);
static Hash parseSRI(std::string_view original);
private:
/* The type must be provided, the string view must not include <type>
prefix. `isSRI` helps disambigate the various base-* encodings. */
Hash(std::string_view s, HashType type, bool isSRI);
public:
/* Check whether a hash is set. */
operator bool () const { return (bool) type; }

33
src/libutil/split.hh Normal file
View file

@ -0,0 +1,33 @@
#pragma once
#include <optional>
#include <string_view>
#include "util.hh"
namespace nix {
// If `separator` is found, we return the portion of the string before the
// separator, and modify the string argument to contain only the part after the
// separator. Otherwise, wer return `std::nullopt`, and we leave the argument
// string alone.
static inline std::optional<std::string_view> splitPrefixTo(std::string_view & string, char separator) {
auto sepInstance = string.find(separator);
if (sepInstance != std::string_view::npos) {
auto prefix = string.substr(0, sepInstance);
string.remove_prefix(sepInstance+1);
return prefix;
}
return std::nullopt;
}
static inline bool splitPrefix(std::string_view & string, std::string_view prefix) {
bool res = hasPrefix(string, prefix);
if (res)
string.remove_prefix(prefix.length());
return res;
}
}

2
src/libutil/util.cc
View file

@ -1450,7 +1450,7 @@ string base64Decode(std::string_view s)
char digit = decode[(unsigned char) c];
if (digit == -1)
throw Error("invalid character in Base64 string");
throw Error("invalid character in Base64 string: '%c'", c);
bits += 6;
d = d << 6 | digit;

2
src/nix-prefetch-url/nix-prefetch-url.cc
View file

@ -157,7 +157,7 @@ static int _main(int argc, char * * argv)
Hash hash(ht);
std::optional<StorePath> storePath;
if (args.size() == 2) {
expectedHash = Hash(args[1], ht);
expectedHash = Hash::parseAny(args[1], ht);
const auto recursive = unpack ? FileIngestionMethod::Recursive : FileIngestionMethod::Flat;
storePath = store->makeFixedOutputPath(recursive, *expectedHash, name);
if (store->isValidPath(*storePath))

4
src/nix-store/nix-store.cc
View file

@ -208,7 +208,7 @@ static void opPrintFixedPath(Strings opFlags, Strings opArgs)
string hash = *i++;
string name = *i++;
cout << fmt("%s\n", store->printStorePath(store->makeFixedOutputPath(recursive, Hash(hash, hashAlgo), name)));
cout << fmt("%s\n", store->printStorePath(store->makeFixedOutputPath(recursive, Hash::parseAny(hash, hashAlgo), name)));
}
@ -948,7 +948,7 @@ static void opServe(Strings opFlags, Strings opArgs)
auto deriver = readString(in);
if (deriver != "")
info.deriver = store->parseStorePath(deriver);
info.narHash = Hash(readString(in), htSHA256);
info.narHash = Hash::parseAny(readString(in), htSHA256);
info.references = readStorePaths<StorePathSet>(*store, in);
in >> info.registrationTime >> info.narSize >> info.ultimate;
info.sigs = readStrings<StringSet>(in);

2
src/nix/hash.cc
View file

@ -107,7 +107,7 @@ struct CmdToBase : Command
void run() override
{
for (auto s : args)
logger->stdout(Hash(s, ht).to_string(base, base == SRI));
logger->stdout(Hash::parseAny(s, ht).to_string(base, base == SRI));
}
};