lix/src/libstore/buildable.cc
John Ericson 9dfb97c987 "newtype" BuildableReq
This makes for better types errors and allows us to give it methods.
2021-04-05 09:35:55 -04:00

78 lines
2.1 KiB
C++

#include "buildable.hh"
#include "store-api.hh"
#include <nlohmann/json.hpp>
namespace nix {
nlohmann::json BuildableOpaque::toJSON(ref<Store> store) const {
nlohmann::json res;
res["path"] = store->printStorePath(path);
return res;
}
nlohmann::json BuildableFromDrv::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) : "";
}
return res;
}
nlohmann::json buildablesToJSON(const Buildables & buildables, ref<Store> store) {
auto res = nlohmann::json::array();
for (const Buildable & buildable : buildables) {
std::visit([&res, store](const auto & buildable) {
res.push_back(buildable.toJSON(store));
}, buildable);
}
return res;
}
std::string BuildableOpaque::to_string(const Store & store) const {
return store.printStorePath(path);
}
std::string BuildableReqFromDrv::to_string(const Store & store) const {
return store.printStorePath(drvPath)
+ "!"
+ (outputs.empty() ? std::string { "*" } : concatStringsSep(",", outputs));
}
std::string BuildableReq::to_string(const Store & store) const
{
return std::visit(
[&](const auto & req) { return req.to_string(store); },
this->raw());
}
BuildableOpaque BuildableOpaque::parse(const Store & store, std::string_view s)
{
return {store.parseStorePath(s)};
}
BuildableReqFromDrv BuildableReqFromDrv::parse(const Store & store, std::string_view s)
{
size_t n = s.find("!");
assert(n != s.npos);
auto drvPath = store.parseStorePath(s.substr(0, n));
auto outputsS = s.substr(n + 1);
std::set<string> outputs;
if (outputsS != "*")
outputs = tokenizeString<std::set<string>>(outputsS);
return {drvPath, outputs};
}
BuildableReq BuildableReq::parse(const Store & store, std::string_view s)
{
size_t n = s.find("!");
return n == s.npos
? (BuildableReq) BuildableOpaque::parse(store, s)
: (BuildableReq) BuildableReqFromDrv::parse(store, s);
}
}