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#include "derived-path.hh"
#include "derivations.hh"
#include "store-api.hh"
#include <nlohmann/json.hpp>
#include <optional>
namespace nix {
nlohmann::json DerivedPath::Opaque::toJSON(ref<Store> store) const {
nlohmann::json res;
res["path"] = store->printStorePath(path);
return res;
}
nlohmann::json DerivedPath::Built::toJSON(ref<Store> store) const {
nlohmann::json res;
res["drvPath"] = store->printStorePath(drvPath);
// Fallback for the input-addressed derivation case: We expect to always be
// able to print the output paths, so let’s do it
const auto outputMap = store->queryPartialDerivationOutputMap(drvPath);
for (const auto & [output, outputPathOpt] : outputMap) {
if (!outputs.contains(output)) continue;
if (outputPathOpt)
res["outputs"][output] = store->printStorePath(*outputPathOpt);
else
res["outputs"][output] = nullptr;
}
return res;
}
nlohmann::json BuiltPath::Built::toJSON(ref<Store> store) const {
nlohmann::json res;
res["drvPath"] = store->printStorePath(drvPath);
for (const auto& [output, path] : outputs) {
res["outputs"][output] = store->printStorePath(path);
}
return res;
}
StorePathSet BuiltPath::outPaths() const
{
return std::visit(
overloaded{
[](const BuiltPath::Opaque & p) { return StorePathSet{p.path}; },
[](const BuiltPath::Built & b) {
StorePathSet res;
for (auto & [_, path] : b.outputs)
res.insert(path);
return res;
},
}, raw()
);
}
std::string DerivedPath::Opaque::to_string(const Store & store) const
{
return store.printStorePath(path);
}
std::string DerivedPath::Built::to_string(const Store & store) const
{
return store.printStorePath(drvPath)
+ '^'
+ outputs.to_string();
}
std::string DerivedPath::Built::to_string_legacy(const Store & store) const
{
return store.printStorePath(drvPath)
+ '!'
+ outputs.to_string();
}
std::string DerivedPath::to_string(const Store & store) const
{
return std::visit(overloaded {
[&](const DerivedPath::Built & req) { return req.to_string(store); },
[&](const DerivedPath::Opaque & req) { return req.to_string(store); },
}, this->raw());
}
std::string DerivedPath::to_string_legacy(const Store & store) const
{
return std::visit(overloaded {
[&](const DerivedPath::Built & req) { return req.to_string_legacy(store); },
[&](const DerivedPath::Opaque & req) { return req.to_string(store); },
}, this->raw());
}
DerivedPath::Opaque DerivedPath::Opaque::parse(const Store & store, std::string_view s)
{
return {store.parseStorePath(s)};
}
DerivedPath::Built DerivedPath::Built::parse(const Store & store, std::string_view drvS, std::string_view outputsS)
{
return {
.drvPath = store.parseStorePath(drvS),
.outputs = OutputsSpec::parse(outputsS),
};
}
static inline DerivedPath parseWith(const Store & store, std::string_view s, std::string_view separator)
{
size_t n = s.find(separator);
return n == s.npos
? (DerivedPath) DerivedPath::Opaque::parse(store, s)
: (DerivedPath) DerivedPath::Built::parse(store, s.substr(0, n), s.substr(n + 1));
}
DerivedPath DerivedPath::parse(const Store & store, std::string_view s)
{
return parseWith(store, s, "^");
}
DerivedPath DerivedPath::parseLegacy(const Store & store, std::string_view s)
{
return parseWith(store, s, "!");
}
RealisedPath::Set BuiltPath::toRealisedPaths(Store & store) const
{
RealisedPath::Set res;
std::visit(
overloaded{
[&](const BuiltPath::Opaque & p) { res.insert(p.path); },
[&](const BuiltPath::Built & p) {
auto drvHashes =
staticOutputHashes(store, store.readDerivation(p.drvPath));
for (auto& [outputName, outputPath] : p.outputs) {
if (experimentalFeatureSettings.isEnabled(
Xp::CaDerivations)) {
auto drvOutput = get(drvHashes, outputName);
if (!drvOutput)
throw Error(
"the derivation '%s' has unrealised output '%s' (derived-path.cc/toRealisedPaths)",
store.printStorePath(p.drvPath), outputName);
auto thisRealisation = store.queryRealisation(
DrvOutput{*drvOutput, outputName});
assert(thisRealisation); // We’ve built it, so we must
// have the realisation
res.insert(*thisRealisation);
} else {
res.insert(outputPath);
}
}
},
},
raw());
return res;
}
}
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