Files
nix/src/libcmd/built-path.cc
Sergei Zimmerman 0e35cd6f3e Apply clang-format universally.
* It is tough to contribute to a project that doesn't use a formatter,
* It is extra hard to contribute to a project which has configured the formatter, but ignores it for some files
* Code formatting makes it harder to hide obscure / weird bugs by accident or on purpose,

Let's rip the bandaid off?

Note that PRs currently in flight should be able to be merged relatively easily by applying `clang-format` to their tip prior to merge.

Co-authored-by: Graham Christensen <graham@grahamc.com>
2025-07-18 22:49:40 +03:00

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#include "nix/cmd/built-path.hh"
#include "nix/store/derivations.hh"
#include "nix/store/store-api.hh"
#include "nix/util/comparator.hh"
#include <nlohmann/json.hpp>
#include <optional>
namespace nix {
// Custom implementation to avoid `ref` ptr equality
GENERATE_CMP_EXT(, std::strong_ordering, SingleBuiltPathBuilt, *me->drvPath, me->output);
// Custom implementation to avoid `ref` ptr equality
// TODO no `GENERATE_CMP_EXT` because no `std::set::operator<=>` on
// Darwin, per header.
GENERATE_EQUAL(, BuiltPathBuilt ::, BuiltPathBuilt, *me->drvPath, me->outputs);
StorePath SingleBuiltPath::outPath() const
{
return std::visit(
overloaded{
[](const SingleBuiltPath::Opaque & p) { return p.path; },
[](const SingleBuiltPath::Built & b) { return b.output.second; },
},
raw());
}
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());
}
SingleDerivedPath::Built SingleBuiltPath::Built::discardOutputPath() const
{
return SingleDerivedPath::Built{
.drvPath = make_ref<SingleDerivedPath>(drvPath->discardOutputPath()),
.output = output.first,
};
}
SingleDerivedPath SingleBuiltPath::discardOutputPath() const
{
return std::visit(
overloaded{
[](const SingleBuiltPath::Opaque & p) -> SingleDerivedPath { return p; },
[](const SingleBuiltPath::Built & b) -> SingleDerivedPath { return b.discardOutputPath(); },
},
raw());
}
nlohmann::json BuiltPath::Built::toJSON(const StoreDirConfig & store) const
{
nlohmann::json res;
res["drvPath"] = drvPath->toJSON(store);
for (const auto & [outputName, outputPath] : outputs) {
res["outputs"][outputName] = store.printStorePath(outputPath);
}
return res;
}
nlohmann::json SingleBuiltPath::Built::toJSON(const StoreDirConfig & store) const
{
nlohmann::json res;
res["drvPath"] = drvPath->toJSON(store);
auto & [outputName, outputPath] = output;
res["output"] = outputName;
res["outputPath"] = store.printStorePath(outputPath);
return res;
}
nlohmann::json SingleBuiltPath::toJSON(const StoreDirConfig & store) const
{
return std::visit([&](const auto & buildable) { return buildable.toJSON(store); }, raw());
}
nlohmann::json BuiltPath::toJSON(const StoreDirConfig & store) const
{
return std::visit([&](const auto & buildable) { return buildable.toJSON(store); }, raw());
}
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->outPath()));
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->outPath()),
outputName);
auto thisRealisation = store.queryRealisation(DrvOutput{*drvOutput, outputName});
assert(thisRealisation); // Weve built it, so we must
// have the realisation
res.insert(*thisRealisation);
} else {
res.insert(outputPath);
}
}
},
},
raw());
return res;
}
} // namespace nix