669 lines
21 KiB
C++
669 lines
21 KiB
C++
#include "derivations.hh"
|
|
#include "store-api.hh"
|
|
#include "globals.hh"
|
|
#include "util.hh"
|
|
#include "worker-protocol.hh"
|
|
#include "fs-accessor.hh"
|
|
|
|
namespace nix {
|
|
|
|
std::optional<StorePath> DerivationOutput::pathOpt(const Store & store, std::string_view drvName) const
|
|
{
|
|
return std::visit(overloaded {
|
|
[](DerivationOutputInputAddressed doi) -> std::optional<StorePath> {
|
|
return { doi.path };
|
|
},
|
|
[&](DerivationOutputCAFixed dof) -> std::optional<StorePath> {
|
|
return {
|
|
// FIXME if we intend to support multiple CA outputs.
|
|
dof.path(store, drvName, "out")
|
|
};
|
|
},
|
|
[](DerivationOutputCAFloating dof) -> std::optional<StorePath> {
|
|
return std::nullopt;
|
|
},
|
|
}, output);
|
|
}
|
|
|
|
|
|
StorePath DerivationOutputCAFixed::path(const Store & store, std::string_view drvName, std::string_view outputName) const {
|
|
return store.makeFixedOutputPath(
|
|
hash.method, hash.hash,
|
|
outputPathName(drvName, outputName));
|
|
}
|
|
|
|
|
|
bool derivationIsCA(DerivationType dt) {
|
|
switch (dt) {
|
|
case DerivationType::InputAddressed: return false;
|
|
case DerivationType::CAFixed: return true;
|
|
case DerivationType::CAFloating: return true;
|
|
};
|
|
// Since enums can have non-variant values, but making a `default:` would
|
|
// disable exhaustiveness warnings.
|
|
assert(false);
|
|
}
|
|
|
|
bool derivationIsFixed(DerivationType dt) {
|
|
switch (dt) {
|
|
case DerivationType::InputAddressed: return false;
|
|
case DerivationType::CAFixed: return true;
|
|
case DerivationType::CAFloating: return false;
|
|
};
|
|
assert(false);
|
|
}
|
|
|
|
bool derivationIsImpure(DerivationType dt) {
|
|
switch (dt) {
|
|
case DerivationType::InputAddressed: return false;
|
|
case DerivationType::CAFixed: return true;
|
|
case DerivationType::CAFloating: return false;
|
|
};
|
|
assert(false);
|
|
}
|
|
|
|
|
|
bool BasicDerivation::isBuiltin() const
|
|
{
|
|
return string(builder, 0, 8) == "builtin:";
|
|
}
|
|
|
|
|
|
StorePath writeDerivation(ref<Store> store,
|
|
const Derivation & drv, RepairFlag repair)
|
|
{
|
|
auto references = drv.inputSrcs;
|
|
for (auto & i : drv.inputDrvs)
|
|
references.insert(i.first);
|
|
/* Note that the outputs of a derivation are *not* references
|
|
(that can be missing (of course) and should not necessarily be
|
|
held during a garbage collection). */
|
|
auto suffix = std::string(drv.name) + drvExtension;
|
|
auto contents = drv.unparse(*store, false);
|
|
return settings.readOnlyMode
|
|
? store->computeStorePathForText(suffix, contents, references)
|
|
: store->addTextToStore(suffix, contents, references, repair);
|
|
}
|
|
|
|
|
|
/* Read string `s' from stream `str'. */
|
|
static void expect(std::istream & str, const string & s)
|
|
{
|
|
char s2[s.size()];
|
|
str.read(s2, s.size());
|
|
if (string(s2, s.size()) != s)
|
|
throw FormatError("expected string '%1%'", s);
|
|
}
|
|
|
|
|
|
/* Read a C-style string from stream `str'. */
|
|
static string parseString(std::istream & str)
|
|
{
|
|
string res;
|
|
expect(str, "\"");
|
|
int c;
|
|
while ((c = str.get()) != '"')
|
|
if (c == '\\') {
|
|
c = str.get();
|
|
if (c == 'n') res += '\n';
|
|
else if (c == 'r') res += '\r';
|
|
else if (c == 't') res += '\t';
|
|
else res += c;
|
|
}
|
|
else res += c;
|
|
return res;
|
|
}
|
|
|
|
static void validatePath(std::string_view s) {
|
|
if (s.size() == 0 || s[0] != '/')
|
|
throw FormatError("bad path '%1%' in derivation", s);
|
|
}
|
|
|
|
static Path parsePath(std::istream & str)
|
|
{
|
|
auto s = parseString(str);
|
|
validatePath(s);
|
|
return s;
|
|
}
|
|
|
|
|
|
static bool endOfList(std::istream & str)
|
|
{
|
|
if (str.peek() == ',') {
|
|
str.get();
|
|
return false;
|
|
}
|
|
if (str.peek() == ']') {
|
|
str.get();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
static StringSet parseStrings(std::istream & str, bool arePaths)
|
|
{
|
|
StringSet res;
|
|
while (!endOfList(str))
|
|
res.insert(arePaths ? parsePath(str) : parseString(str));
|
|
return res;
|
|
}
|
|
|
|
|
|
static DerivationOutput parseDerivationOutput(const Store & store,
|
|
std::string_view pathS, std::string_view hashAlgo, std::string_view hash)
|
|
{
|
|
if (hashAlgo != "") {
|
|
auto method = FileIngestionMethod::Flat;
|
|
if (string(hashAlgo, 0, 2) == "r:") {
|
|
method = FileIngestionMethod::Recursive;
|
|
hashAlgo = hashAlgo.substr(2);
|
|
}
|
|
const auto hashType = parseHashType(hashAlgo);
|
|
if (hash != "") {
|
|
validatePath(pathS);
|
|
return DerivationOutput {
|
|
.output = DerivationOutputCAFixed {
|
|
.hash = FixedOutputHash {
|
|
.method = std::move(method),
|
|
.hash = Hash::parseNonSRIUnprefixed(hash, hashType),
|
|
},
|
|
},
|
|
};
|
|
} else {
|
|
settings.requireExperimentalFeature("ca-derivations");
|
|
assert(pathS == "");
|
|
return DerivationOutput {
|
|
.output = DerivationOutputCAFloating {
|
|
.method = std::move(method),
|
|
.hashType = std::move(hashType),
|
|
},
|
|
};
|
|
}
|
|
} else {
|
|
validatePath(pathS);
|
|
return DerivationOutput {
|
|
.output = DerivationOutputInputAddressed {
|
|
.path = store.parseStorePath(pathS),
|
|
}
|
|
};
|
|
}
|
|
}
|
|
|
|
static DerivationOutput parseDerivationOutput(const Store & store, std::istringstream & str)
|
|
{
|
|
expect(str, ","); const auto pathS = parseString(str);
|
|
expect(str, ","); const auto hashAlgo = parseString(str);
|
|
expect(str, ","); const auto hash = parseString(str);
|
|
expect(str, ")");
|
|
|
|
return parseDerivationOutput(store, pathS, hashAlgo, hash);
|
|
}
|
|
|
|
|
|
static Derivation parseDerivation(const Store & store, std::string && s, std::string_view name)
|
|
{
|
|
Derivation drv;
|
|
drv.name = name;
|
|
|
|
std::istringstream str(std::move(s));
|
|
expect(str, "Derive([");
|
|
|
|
/* Parse the list of outputs. */
|
|
while (!endOfList(str)) {
|
|
expect(str, "("); std::string id = parseString(str);
|
|
auto output = parseDerivationOutput(store, str);
|
|
drv.outputs.emplace(std::move(id), std::move(output));
|
|
}
|
|
|
|
/* Parse the list of input derivations. */
|
|
expect(str, ",[");
|
|
while (!endOfList(str)) {
|
|
expect(str, "(");
|
|
Path drvPath = parsePath(str);
|
|
expect(str, ",[");
|
|
drv.inputDrvs.insert_or_assign(store.parseStorePath(drvPath), parseStrings(str, false));
|
|
expect(str, ")");
|
|
}
|
|
|
|
expect(str, ",["); drv.inputSrcs = store.parseStorePathSet(parseStrings(str, true));
|
|
expect(str, ","); drv.platform = parseString(str);
|
|
expect(str, ","); drv.builder = parseString(str);
|
|
|
|
/* Parse the builder arguments. */
|
|
expect(str, ",[");
|
|
while (!endOfList(str))
|
|
drv.args.push_back(parseString(str));
|
|
|
|
/* Parse the environment variables. */
|
|
expect(str, ",[");
|
|
while (!endOfList(str)) {
|
|
expect(str, "("); string name = parseString(str);
|
|
expect(str, ","); string value = parseString(str);
|
|
expect(str, ")");
|
|
drv.env[name] = value;
|
|
}
|
|
|
|
expect(str, ")");
|
|
return drv;
|
|
}
|
|
|
|
|
|
Derivation readDerivation(const Store & store, const Path & drvPath, std::string_view name)
|
|
{
|
|
try {
|
|
return parseDerivation(store, readFile(drvPath), name);
|
|
} catch (FormatError & e) {
|
|
throw Error("error parsing derivation '%1%': %2%", drvPath, e.msg());
|
|
}
|
|
}
|
|
|
|
|
|
Derivation Store::derivationFromPath(const StorePath & drvPath)
|
|
{
|
|
ensurePath(drvPath);
|
|
return readDerivation(drvPath);
|
|
}
|
|
|
|
|
|
Derivation Store::readDerivation(const StorePath & drvPath)
|
|
{
|
|
auto accessor = getFSAccessor();
|
|
try {
|
|
return parseDerivation(*this, accessor->readFile(printStorePath(drvPath)), Derivation::nameFromPath(drvPath));
|
|
} catch (FormatError & e) {
|
|
throw Error("error parsing derivation '%s': %s", printStorePath(drvPath), e.msg());
|
|
}
|
|
}
|
|
|
|
|
|
static void printString(string & res, std::string_view s)
|
|
{
|
|
char buf[s.size() * 2 + 2];
|
|
char * p = buf;
|
|
*p++ = '"';
|
|
for (auto c : s)
|
|
if (c == '\"' || c == '\\') { *p++ = '\\'; *p++ = c; }
|
|
else if (c == '\n') { *p++ = '\\'; *p++ = 'n'; }
|
|
else if (c == '\r') { *p++ = '\\'; *p++ = 'r'; }
|
|
else if (c == '\t') { *p++ = '\\'; *p++ = 't'; }
|
|
else *p++ = c;
|
|
*p++ = '"';
|
|
res.append(buf, p - buf);
|
|
}
|
|
|
|
|
|
static void printUnquotedString(string & res, std::string_view s)
|
|
{
|
|
res += '"';
|
|
res.append(s);
|
|
res += '"';
|
|
}
|
|
|
|
|
|
template<class ForwardIterator>
|
|
static void printStrings(string & res, ForwardIterator i, ForwardIterator j)
|
|
{
|
|
res += '[';
|
|
bool first = true;
|
|
for ( ; i != j; ++i) {
|
|
if (first) first = false; else res += ',';
|
|
printString(res, *i);
|
|
}
|
|
res += ']';
|
|
}
|
|
|
|
|
|
template<class ForwardIterator>
|
|
static void printUnquotedStrings(string & res, ForwardIterator i, ForwardIterator j)
|
|
{
|
|
res += '[';
|
|
bool first = true;
|
|
for ( ; i != j; ++i) {
|
|
if (first) first = false; else res += ',';
|
|
printUnquotedString(res, *i);
|
|
}
|
|
res += ']';
|
|
}
|
|
|
|
|
|
string Derivation::unparse(const Store & store, bool maskOutputs,
|
|
std::map<std::string, StringSet> * actualInputs) const
|
|
{
|
|
string s;
|
|
s.reserve(65536);
|
|
s += "Derive([";
|
|
|
|
bool first = true;
|
|
for (auto & i : outputs) {
|
|
if (first) first = false; else s += ',';
|
|
s += '('; printUnquotedString(s, i.first);
|
|
std::visit(overloaded {
|
|
[&](DerivationOutputInputAddressed doi) {
|
|
s += ','; printUnquotedString(s, maskOutputs ? "" : store.printStorePath(doi.path));
|
|
s += ','; printUnquotedString(s, "");
|
|
s += ','; printUnquotedString(s, "");
|
|
},
|
|
[&](DerivationOutputCAFixed dof) {
|
|
s += ','; printUnquotedString(s, maskOutputs ? "" : store.printStorePath(dof.path(store, name, i.first)));
|
|
s += ','; printUnquotedString(s, dof.hash.printMethodAlgo());
|
|
s += ','; printUnquotedString(s, dof.hash.hash.to_string(Base16, false));
|
|
},
|
|
[&](DerivationOutputCAFloating dof) {
|
|
s += ','; printUnquotedString(s, "");
|
|
s += ','; printUnquotedString(s, makeFileIngestionPrefix(dof.method) + printHashType(dof.hashType));
|
|
s += ','; printUnquotedString(s, "");
|
|
},
|
|
}, i.second.output);
|
|
s += ')';
|
|
}
|
|
|
|
s += "],[";
|
|
first = true;
|
|
if (actualInputs) {
|
|
for (auto & i : *actualInputs) {
|
|
if (first) first = false; else s += ',';
|
|
s += '('; printUnquotedString(s, i.first);
|
|
s += ','; printUnquotedStrings(s, i.second.begin(), i.second.end());
|
|
s += ')';
|
|
}
|
|
} else {
|
|
for (auto & i : inputDrvs) {
|
|
if (first) first = false; else s += ',';
|
|
s += '('; printUnquotedString(s, store.printStorePath(i.first));
|
|
s += ','; printUnquotedStrings(s, i.second.begin(), i.second.end());
|
|
s += ')';
|
|
}
|
|
}
|
|
|
|
s += "],";
|
|
auto paths = store.printStorePathSet(inputSrcs); // FIXME: slow
|
|
printUnquotedStrings(s, paths.begin(), paths.end());
|
|
|
|
s += ','; printUnquotedString(s, platform);
|
|
s += ','; printString(s, builder);
|
|
s += ','; printStrings(s, args.begin(), args.end());
|
|
|
|
s += ",[";
|
|
first = true;
|
|
for (auto & i : env) {
|
|
if (first) first = false; else s += ',';
|
|
s += '('; printString(s, i.first);
|
|
s += ','; printString(s, maskOutputs && outputs.count(i.first) ? "" : i.second);
|
|
s += ')';
|
|
}
|
|
|
|
s += "])";
|
|
|
|
return s;
|
|
}
|
|
|
|
|
|
// FIXME: remove
|
|
bool isDerivation(const string & fileName)
|
|
{
|
|
return hasSuffix(fileName, drvExtension);
|
|
}
|
|
|
|
|
|
std::string outputPathName(std::string_view drvName, std::string_view outputName) {
|
|
std::string res { drvName };
|
|
if (outputName != "out") {
|
|
res += "-";
|
|
res += outputName;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
DerivationType BasicDerivation::type() const
|
|
{
|
|
std::set<std::string_view> inputAddressedOutputs, fixedCAOutputs, floatingCAOutputs;
|
|
std::optional<HashType> floatingHashType;
|
|
for (auto & i : outputs) {
|
|
std::visit(overloaded {
|
|
[&](DerivationOutputInputAddressed _) {
|
|
inputAddressedOutputs.insert(i.first);
|
|
},
|
|
[&](DerivationOutputCAFixed _) {
|
|
fixedCAOutputs.insert(i.first);
|
|
},
|
|
[&](DerivationOutputCAFloating dof) {
|
|
floatingCAOutputs.insert(i.first);
|
|
if (!floatingHashType) {
|
|
floatingHashType = dof.hashType;
|
|
} else {
|
|
if (*floatingHashType != dof.hashType)
|
|
throw Error("All floating outputs must use the same hash type");
|
|
}
|
|
},
|
|
}, i.second.output);
|
|
}
|
|
|
|
if (inputAddressedOutputs.empty() && fixedCAOutputs.empty() && floatingCAOutputs.empty()) {
|
|
throw Error("Must have at least one output");
|
|
} else if (! inputAddressedOutputs.empty() && fixedCAOutputs.empty() && floatingCAOutputs.empty()) {
|
|
return DerivationType::InputAddressed;
|
|
} else if (inputAddressedOutputs.empty() && ! fixedCAOutputs.empty() && floatingCAOutputs.empty()) {
|
|
if (fixedCAOutputs.size() > 1)
|
|
// FIXME: Experimental feature?
|
|
throw Error("Only one fixed output is allowed for now");
|
|
if (*fixedCAOutputs.begin() != "out")
|
|
throw Error("Single fixed output must be named \"out\"");
|
|
return DerivationType::CAFixed;
|
|
} else if (inputAddressedOutputs.empty() && fixedCAOutputs.empty() && ! floatingCAOutputs.empty()) {
|
|
return DerivationType::CAFloating;
|
|
} else {
|
|
throw Error("Can't mix derivation output types");
|
|
}
|
|
}
|
|
|
|
|
|
DrvHashes drvHashes;
|
|
|
|
/* pathDerivationModulo and hashDerivationModulo are mutually recursive
|
|
*/
|
|
|
|
/* Look up the derivation by value and memoize the
|
|
`hashDerivationModulo` call.
|
|
*/
|
|
static const DrvHashModulo & pathDerivationModulo(Store & store, const StorePath & drvPath)
|
|
{
|
|
auto h = drvHashes.find(drvPath);
|
|
if (h == drvHashes.end()) {
|
|
assert(store.isValidPath(drvPath));
|
|
// Cache it
|
|
h = drvHashes.insert_or_assign(
|
|
drvPath,
|
|
hashDerivationModulo(
|
|
store,
|
|
store.readDerivation(drvPath),
|
|
false)).first;
|
|
}
|
|
return h->second;
|
|
}
|
|
|
|
/* See the header for interface details. These are the implementation details.
|
|
|
|
For fixed-output derivations, each hash in the map is not the
|
|
corresponding output's content hash, but a hash of that hash along
|
|
with other constant data. The key point is that the value is a pure
|
|
function of the output's contents, and there are no preimage attacks
|
|
either spoofing an output's contents for a derivation, or
|
|
spoofing a derivation for an output's contents.
|
|
|
|
For regular derivations, it looks up each subderivation from its hash
|
|
and recurs. If the subderivation is also regular, it simply
|
|
substitutes the derivation path with its hash. If the subderivation
|
|
is fixed-output, however, it takes each output hash and pretends it
|
|
is a derivation hash producing a single "out" output. This is so we
|
|
don't leak the provenance of fixed outputs, reducing pointless cache
|
|
misses as the build itself won't know this.
|
|
*/
|
|
DrvHashModulo hashDerivationModulo(Store & store, const Derivation & drv, bool maskOutputs)
|
|
{
|
|
/* Return a fixed hash for fixed-output derivations. */
|
|
switch (drv.type()) {
|
|
case DerivationType::CAFloating:
|
|
throw Error("Regular input-addressed derivations are not yet allowed to depend on CA derivations");
|
|
case DerivationType::CAFixed: {
|
|
std::map<std::string, Hash> outputHashes;
|
|
for (const auto & i : drv.outputs) {
|
|
auto & dof = std::get<DerivationOutputCAFixed>(i.second.output);
|
|
auto hash = hashString(htSHA256, "fixed:out:"
|
|
+ dof.hash.printMethodAlgo() + ":"
|
|
+ dof.hash.hash.to_string(Base16, false) + ":"
|
|
+ store.printStorePath(dof.path(store, drv.name, i.first)));
|
|
outputHashes.insert_or_assign(i.first, std::move(hash));
|
|
}
|
|
return outputHashes;
|
|
}
|
|
case DerivationType::InputAddressed:
|
|
break;
|
|
}
|
|
|
|
/* For other derivations, replace the inputs paths with recursive
|
|
calls to this function. */
|
|
std::map<std::string, StringSet> inputs2;
|
|
for (auto & i : drv.inputDrvs) {
|
|
const auto & res = pathDerivationModulo(store, i.first);
|
|
std::visit(overloaded {
|
|
// Regular non-CA derivation, replace derivation
|
|
[&](Hash drvHash) {
|
|
inputs2.insert_or_assign(drvHash.to_string(Base16, false), i.second);
|
|
},
|
|
// CA derivation's output hashes
|
|
[&](CaOutputHashes outputHashes) {
|
|
std::set<std::string> justOut = { "out" };
|
|
for (auto & output : i.second) {
|
|
/* Put each one in with a single "out" output.. */
|
|
const auto h = outputHashes.at(output);
|
|
inputs2.insert_or_assign(
|
|
h.to_string(Base16, false),
|
|
justOut);
|
|
}
|
|
},
|
|
}, res);
|
|
}
|
|
|
|
return hashString(htSHA256, drv.unparse(store, maskOutputs, &inputs2));
|
|
}
|
|
|
|
|
|
std::string StorePathWithOutputs::to_string(const Store & store) const
|
|
{
|
|
return outputs.empty()
|
|
? store.printStorePath(path)
|
|
: store.printStorePath(path) + "!" + concatStringsSep(",", outputs);
|
|
}
|
|
|
|
|
|
bool wantOutput(const string & output, const std::set<string> & wanted)
|
|
{
|
|
return wanted.empty() || wanted.find(output) != wanted.end();
|
|
}
|
|
|
|
|
|
static DerivationOutput readDerivationOutput(Source & in, const Store & store)
|
|
{
|
|
const auto pathS = readString(in);
|
|
const auto hashAlgo = readString(in);
|
|
const auto hash = readString(in);
|
|
|
|
return parseDerivationOutput(store, pathS, hashAlgo, hash);
|
|
}
|
|
|
|
StringSet BasicDerivation::outputNames() const
|
|
{
|
|
StringSet names;
|
|
for (auto & i : outputs)
|
|
names.insert(i.first);
|
|
return names;
|
|
}
|
|
|
|
|
|
std::string_view BasicDerivation::nameFromPath(const StorePath & drvPath) {
|
|
auto nameWithSuffix = drvPath.name();
|
|
constexpr std::string_view extension = ".drv";
|
|
assert(hasSuffix(nameWithSuffix, extension));
|
|
nameWithSuffix.remove_suffix(extension.size());
|
|
return nameWithSuffix;
|
|
}
|
|
|
|
|
|
Source & readDerivation(Source & in, const Store & store, BasicDerivation & drv, std::string_view name)
|
|
{
|
|
drv.name = name;
|
|
|
|
drv.outputs.clear();
|
|
auto nr = readNum<size_t>(in);
|
|
for (size_t n = 0; n < nr; n++) {
|
|
auto name = readString(in);
|
|
auto output = readDerivationOutput(in, store);
|
|
drv.outputs.emplace(std::move(name), std::move(output));
|
|
}
|
|
|
|
drv.inputSrcs = readStorePaths<StorePathSet>(store, in);
|
|
in >> drv.platform >> drv.builder;
|
|
drv.args = readStrings<Strings>(in);
|
|
|
|
nr = readNum<size_t>(in);
|
|
for (size_t n = 0; n < nr; n++) {
|
|
auto key = readString(in);
|
|
auto value = readString(in);
|
|
drv.env[key] = value;
|
|
}
|
|
|
|
return in;
|
|
}
|
|
|
|
|
|
void writeDerivation(Sink & out, const Store & store, const BasicDerivation & drv)
|
|
{
|
|
out << drv.outputs.size();
|
|
for (auto & i : drv.outputs) {
|
|
out << i.first;
|
|
std::visit(overloaded {
|
|
[&](DerivationOutputInputAddressed doi) {
|
|
out << store.printStorePath(doi.path)
|
|
<< ""
|
|
<< "";
|
|
},
|
|
[&](DerivationOutputCAFixed dof) {
|
|
out << store.printStorePath(dof.path(store, drv.name, i.first))
|
|
<< dof.hash.printMethodAlgo()
|
|
<< dof.hash.hash.to_string(Base16, false);
|
|
},
|
|
[&](DerivationOutputCAFloating dof) {
|
|
out << ""
|
|
<< (makeFileIngestionPrefix(dof.method) + printHashType(dof.hashType))
|
|
<< "";
|
|
},
|
|
}, i.second.output);
|
|
}
|
|
writeStorePaths(store, out, drv.inputSrcs);
|
|
out << drv.platform << drv.builder << drv.args;
|
|
out << drv.env.size();
|
|
for (auto & i : drv.env)
|
|
out << i.first << i.second;
|
|
}
|
|
|
|
|
|
std::string hashPlaceholder(const std::string & outputName)
|
|
{
|
|
// FIXME: memoize?
|
|
return "/" + hashString(htSHA256, "nix-output:" + outputName).to_string(Base32, false);
|
|
}
|
|
|
|
StorePath downstreamPlaceholder(const Store & store, const StorePath & drvPath, std::string_view outputName)
|
|
{
|
|
auto drvNameWithExtension = drvPath.name();
|
|
auto drvName = drvNameWithExtension.substr(0, drvNameWithExtension.size() - 4);
|
|
return store.makeStorePath(
|
|
"downstream-placeholder:" + std::string { drvPath.name() } + ":" + std::string { outputName },
|
|
"compressed:" + std::string { drvPath.hashPart() },
|
|
outputPathName(drvName, outputName));
|
|
}
|
|
|
|
}
|