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Enfore the use of properly built paths in libcmd

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Replace `DerivedPathWithHints` by a new `BuiltPath` type that serves as
a proof that the corresponding path has been built.
This commit is contained in:
regnat 2021-05-17 08:45:08 +02:00
parent ec613603ba
commit 2105084645
10 changed files with 189 additions and 144 deletions
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43
src/libstore/derived-path.cc
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@ -15,11 +15,26 @@ 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] = path ? store->printStorePath(*path) : "";
res["outputs"][output] = store->printStorePath(path);
}
return res;
}
StorePathSet BuiltPath::outPaths() const
{
return std::visit(
overloaded{
[](BuiltPath::Opaque p) { return StorePathSet{p.path}; },
[](BuiltPath::Built b) {
StorePathSet res;
for (auto & [_, path] : b.outputs)
res.insert(path);
return res;
},
}, raw()
);
}
nlohmann::json derivedPathsWithHintsToJSON(const BuiltPaths & buildables, ref<Store> store) {
auto res = nlohmann::json::array();
for (const BuiltPath & buildable : buildables) {
@ -74,4 +89,30 @@ DerivedPath DerivedPath::parse(const Store & store, std::string_view s)
: (DerivedPath) DerivedPath::Built::parse(store, s);
}
RealisedPath::Set BuiltPath::toRealisedPaths(Store & store) const
{
RealisedPath::Set res;
std::visit(
overloaded{
[&](BuiltPath::Opaque p) { res.insert(p.path); },
[&](BuiltPath::Built p) {
auto drvHashes =
staticOutputHashes(store, store.readDerivation(p.drvPath));
for (auto& [outputName, outputPath] : p.outputs) {
if (settings.isExperimentalFeatureEnabled(
"ca-derivations")) {
auto thisRealisation = store.queryRealisation(
DrvOutput{drvHashes.at(outputName), outputName});
assert(thisRealisation); // We’ve built it, so we must h
// ve the realisation
res.insert(*thisRealisation);
} else {
res.insert(outputPath);
}
}
},
},
raw());
return res;
}
}