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-rw-r--r--src/libstore/build.cc21
-rw-r--r--src/libstore/derivations.cc112
-rw-r--r--src/libstore/derivations.hh17
-rw-r--r--src/libstore/local-store.cc10
-rw-r--r--src/libstore/store-api.cc21
-rw-r--r--src/libstore/store-api.hh8
6 files changed, 126 insertions, 63 deletions
diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index 53a0958aa..077217b79 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -3712,10 +3712,7 @@ void DerivationGoal::registerOutputs()
if (fixedOutput) {
- FileIngestionMethod outputHashMode; Hash h;
- i.second.parseHashInfo(outputHashMode, h);
-
- if (outputHashMode == FileIngestionMethod::Flat) {
+ if (i.second.hash->method == FileIngestionMethod::Flat) {
/* The output path should be a regular file without execute permission. */
if (!S_ISREG(st.st_mode) || (st.st_mode & S_IXUSR) != 0)
throw BuildError(
@@ -3726,20 +3723,22 @@ void DerivationGoal::registerOutputs()
/* Check the hash. In hash mode, move the path produced by
the derivation to its content-addressed location. */
- Hash h2 = outputHashMode == FileIngestionMethod::Recursive
- ? hashPath(h.type, actualPath).first
- : hashFile(h.type, actualPath);
+ Hash h2 = i.second.hash->method == FileIngestionMethod::Recursive
+ ? hashPath(i.second.hash->hash.type, actualPath).first
+ : hashFile(i.second.hash->hash.type, actualPath);
- auto dest = worker.store.makeFixedOutputPath(outputHashMode, h2, i.second.path.name());
+ auto dest = worker.store.makeFixedOutputPath(i.second.hash->method, h2, i.second.path.name());
- if (h != h2) {
+ if (i.second.hash->hash != h2) {
/* Throw an error after registering the path as
valid. */
worker.hashMismatch = true;
delayedException = std::make_exception_ptr(
BuildError("hash mismatch in fixed-output derivation '%s':\n wanted: %s\n got: %s",
- worker.store.printStorePath(dest), h.to_string(SRI, true), h2.to_string(SRI, true)));
+ worker.store.printStorePath(dest),
+ i.second.hash->hash.to_string(SRI, true),
+ h2.to_string(SRI, true)));
Path actualDest = worker.store.Store::toRealPath(dest);
@@ -3759,7 +3758,7 @@ void DerivationGoal::registerOutputs()
else
assert(worker.store.parseStorePath(path) == dest);
- ca = makeFixedOutputCA(outputHashMode, h2);
+ ca = makeFixedOutputCA(i.second.hash->method, h2);
}
/* Get rid of all weird permissions. This also checks that
diff --git a/src/libstore/derivations.cc b/src/libstore/derivations.cc
index b95f7bfdc..826b336e0 100644
--- a/src/libstore/derivations.cc
+++ b/src/libstore/derivations.cc
@@ -8,22 +8,8 @@
namespace nix {
-
-void DerivationOutput::parseHashInfo(FileIngestionMethod & recursive, Hash & hash) const
-{
- recursive = FileIngestionMethod::Flat;
- string algo = hashAlgo;
-
- if (string(algo, 0, 2) == "r:") {
- recursive = FileIngestionMethod::Recursive;
- algo = string(algo, 2);
- }
-
- HashType hashType = parseHashType(algo);
- if (hashType == htUnknown)
- throw Error("unknown hash algorithm '%s'", algo);
-
- hash = Hash(this->hash, hashType);
+std::string FileSystemHash::printMethodAlgo() const {
+ return makeFileIngestionPrefix(method) + printHashType(hash.type);
}
@@ -120,6 +106,36 @@ static StringSet parseStrings(std::istream & str, bool arePaths)
}
+static DerivationOutput parseDerivationOutput(const Store & store, istringstream_nocopy & str)
+{
+ expect(str, ","); auto path = store.parseStorePath(parsePath(str));
+ expect(str, ","); auto hashAlgo = parseString(str);
+ expect(str, ","); const auto hash = parseString(str);
+ expect(str, ")");
+
+ std::optional<FileSystemHash> fsh;
+ if (hashAlgo != "") {
+ auto method = FileIngestionMethod::Flat;
+ if (string(hashAlgo, 0, 2) == "r:") {
+ method = FileIngestionMethod::Recursive;
+ hashAlgo = string(hashAlgo, 2);
+ }
+ const HashType hashType = parseHashType(hashAlgo);
+ if (hashType == htUnknown)
+ throw Error("unknown hash hashAlgorithm '%s'", hashAlgo);
+ fsh = FileSystemHash {
+ std::move(method),
+ Hash(hash, hashType),
+ };
+ }
+
+ return DerivationOutput {
+ .path = std::move(path),
+ .hash = std::move(fsh),
+ };
+}
+
+
static Derivation parseDerivation(const Store & store, const string & s)
{
Derivation drv;
@@ -129,15 +145,8 @@ static Derivation parseDerivation(const Store & store, const string & s)
/* Parse the list of outputs. */
while (!endOfList(str)) {
expect(str, "("); std::string id = parseString(str);
- expect(str, ","); auto path = store.parseStorePath(parsePath(str));
- expect(str, ","); auto hashAlgo = parseString(str);
- expect(str, ","); auto hash = parseString(str);
- expect(str, ")");
- drv.outputs.emplace(id, DerivationOutput {
- .path = std::move(path),
- .hashAlgo = std::move(hashAlgo),
- .hash = std::move(hash)
- });
+ auto output = parseDerivationOutput(store, str);
+ drv.outputs.emplace(std::move(id), std::move(output));
}
/* Parse the list of input derivations. */
@@ -263,8 +272,9 @@ string Derivation::unparse(const Store & store, bool maskOutputs,
if (first) first = false; else s += ',';
s += '('; printUnquotedString(s, i.first);
s += ','; printUnquotedString(s, maskOutputs ? "" : store.printStorePath(i.second.path));
- s += ','; printUnquotedString(s, i.second.hashAlgo);
- s += ','; printUnquotedString(s, i.second.hash);
+ s += ','; printUnquotedString(s, i.second.hash ? i.second.hash->printMethodAlgo() : "");
+ s += ','; printUnquotedString(s,
+ i.second.hash ? i.second.hash->hash.to_string(Base16, false) : "");
s += ')';
}
@@ -320,7 +330,7 @@ bool BasicDerivation::isFixedOutput() const
{
return outputs.size() == 1 &&
outputs.begin()->first == "out" &&
- outputs.begin()->second.hash != "";
+ outputs.begin()->second.hash;
}
@@ -353,8 +363,8 @@ Hash hashDerivationModulo(Store & store, const Derivation & drv, bool maskOutput
if (drv.isFixedOutput()) {
DerivationOutputs::const_iterator i = drv.outputs.begin();
return hashString(htSHA256, "fixed:out:"
- + i->second.hashAlgo + ":"
- + i->second.hash + ":"
+ + i->second.hash->printMethodAlgo() + ":"
+ + i->second.hash->hash.to_string(Base16, false) + ":"
+ store.printStorePath(i->second.path));
}
@@ -397,6 +407,33 @@ StorePathSet BasicDerivation::outputPaths() const
return paths;
}
+static DerivationOutput readDerivationOutput(Source & in, const Store & store)
+{
+ auto path = store.parseStorePath(readString(in));
+ auto hashAlgo = readString(in);
+ const auto hash = readString(in);
+
+ std::optional<FileSystemHash> fsh;
+ if (hashAlgo != "") {
+ auto method = FileIngestionMethod::Flat;
+ if (string(hashAlgo, 0, 2) == "r:") {
+ method = FileIngestionMethod::Recursive;
+ hashAlgo = string(hashAlgo, 2);
+ }
+ const HashType hashType = parseHashType(hashAlgo);
+ if (hashType == htUnknown)
+ throw Error("unknown hash hashAlgorithm '%s'", hashAlgo);
+ fsh = FileSystemHash {
+ std::move(method),
+ Hash(hash, hashType),
+ };
+ }
+
+ return DerivationOutput {
+ .path = std::move(path),
+ .hash = std::move(fsh),
+ };
+}
StringSet BasicDerivation::outputNames() const
{
@@ -413,14 +450,8 @@ Source & readDerivation(Source & in, const Store & store, BasicDerivation & drv)
auto nr = readNum<size_t>(in);
for (size_t n = 0; n < nr; n++) {
auto name = readString(in);
- auto path = store.parseStorePath(readString(in));
- auto hashAlgo = readString(in);
- auto hash = readString(in);
- drv.outputs.emplace(name, DerivationOutput {
- .path = std::move(path),
- .hashAlgo = std::move(hashAlgo),
- .hash = std::move(hash)
- });
+ auto output = readDerivationOutput(in, store);
+ drv.outputs.emplace(std::move(name), std::move(output));
}
drv.inputSrcs = readStorePaths<StorePathSet>(store, in);
@@ -442,7 +473,10 @@ void writeDerivation(Sink & out, const Store & store, const BasicDerivation & dr
{
out << drv.outputs.size();
for (auto & i : drv.outputs)
- out << i.first << store.printStorePath(i.second.path) << i.second.hashAlgo << i.second.hash;
+ out << i.first
+ << store.printStorePath(i.second.path)
+ << i.second.hash->printMethodAlgo()
+ << i.second.hash->hash.to_string(Base16, false);
writeStorePaths(store, out, drv.inputSrcs);
out << drv.platform << drv.builder << drv.args;
out << drv.env.size();
diff --git a/src/libstore/derivations.hh b/src/libstore/derivations.hh
index d349c6d4d..3b4eb7ec4 100644
--- a/src/libstore/derivations.hh
+++ b/src/libstore/derivations.hh
@@ -12,11 +12,24 @@ namespace nix {
/* Abstract syntax of derivations. */
+/// Pair of a hash, and how the file system was ingested
+struct FileSystemHash {
+ FileIngestionMethod method;
+ Hash hash;
+ FileSystemHash(FileIngestionMethod method, Hash hash)
+ : method(std::move(method))
+ , hash(std::move(hash))
+ { }
+ FileSystemHash(const FileSystemHash &) = default;
+ FileSystemHash(FileSystemHash &&) = default;
+ FileSystemHash & operator = (const FileSystemHash &) = default;
+ std::string printMethodAlgo() const;
+};
+
struct DerivationOutput
{
StorePath path;
- std::string hashAlgo; /* hash used for expected hash computation */
- std::string hash; /* expected hash, may be null */
+ std::optional<FileSystemHash> hash; /* hash used for expected hash computation */
void parseHashInfo(FileIngestionMethod & recursive, Hash & hash) const;
};
diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc
index 0df4374b9..a47ab5123 100644
--- a/src/libstore/local-store.cc
+++ b/src/libstore/local-store.cc
@@ -561,10 +561,12 @@ void LocalStore::checkDerivationOutputs(const StorePath & drvPath, const Derivat
if (out == drv.outputs.end())
throw Error("derivation '%s' does not have an output named 'out'", printStorePath(drvPath));
- FileIngestionMethod method; Hash h;
- out->second.parseHashInfo(method, h);
-
- check(makeFixedOutputPath(method, h, drvName), out->second.path, "out");
+ check(
+ makeFixedOutputPath(
+ out->second.hash->method,
+ out->second.hash->hash,
+ drvName),
+ out->second.path, "out");
}
else {
diff --git a/src/libstore/store-api.cc b/src/libstore/store-api.cc
index aae227bae..9a6c9671c 100644
--- a/src/libstore/store-api.cc
+++ b/src/libstore/store-api.cc
@@ -164,20 +164,20 @@ static std::string makeType(
StorePath Store::makeFixedOutputPath(
- FileIngestionMethod recursive,
+ FileIngestionMethod method,
const Hash & hash,
std::string_view name,
const StorePathSet & references,
bool hasSelfReference) const
{
- if (hash.type == htSHA256 && recursive == FileIngestionMethod::Recursive) {
+ if (hash.type == htSHA256 && method == FileIngestionMethod::Recursive) {
return makeStorePath(makeType(*this, "source", references, hasSelfReference), hash, name);
} else {
assert(references.empty());
return makeStorePath("output:out",
hashString(htSHA256,
"fixed:out:"
- + (recursive == FileIngestionMethod::Recursive ? (string) "r:" : "")
+ + makeFileIngestionPrefix(method)
+ hash.to_string(Base16, true) + ":"),
name);
}
@@ -813,10 +813,21 @@ Strings ValidPathInfo::shortRefs() const
}
-std::string makeFixedOutputCA(FileIngestionMethod recursive, const Hash & hash)
+std::string makeFileIngestionPrefix(const FileIngestionMethod m) {
+ switch (m) {
+ case FileIngestionMethod::Flat:
+ return "";
+ case FileIngestionMethod::Recursive:
+ return "r:";
+ default:
+ throw Error("impossible, caught both cases");
+ }
+}
+
+std::string makeFixedOutputCA(FileIngestionMethod method, const Hash & hash)
{
return "fixed:"
- + (recursive == FileIngestionMethod::Recursive ? (std::string) "r:" : "")
+ + makeFileIngestionPrefix(method)
+ hash.to_string(Base32, true);
}
diff --git a/src/libstore/store-api.hh b/src/libstore/store-api.hh
index 6f4dd959c..a05048290 100644
--- a/src/libstore/store-api.hh
+++ b/src/libstore/store-api.hh
@@ -189,9 +189,10 @@ struct ValidPathInfo
Strings shortRefs() const;
- ValidPathInfo(const StorePath & path) : path(path) { }
+ ValidPathInfo(const ValidPathInfo & other) = default;
- ValidPathInfo(StorePath && path) : path(std::move(path)) { }
+ ValidPathInfo(StorePath && path) : path(std::move(path)) { };
+ ValidPathInfo(const StorePath & path) : path(path) { };
virtual ~ValidPathInfo() { }
};
@@ -838,6 +839,9 @@ std::optional<ValidPathInfo> decodeValidPathInfo(
std::istream & str,
bool hashGiven = false);
+/* Compute the prefix to the hash algorithm which indicates how the files were
+ ingested. */
+std::string makeFileIngestionPrefix(const FileIngestionMethod m);
/* Compute the content-addressability assertion (ValidPathInfo::ca)
for paths created by makeFixedOutputPath() / addToStore(). */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 19:13:16 +0000