forked from lix-project/lix
50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
#include "realisation.hh"
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#include "store-api.hh"
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#include <nlohmann/json.hpp>
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namespace nix {
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MakeError(InvalidDerivationOutputId, Error);
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DrvOutput DrvOutput::parse(const std::string &strRep) {
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const auto &[rawPath, outputs] = parsePathWithOutputs(strRep);
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if (outputs.size() != 1)
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throw InvalidDerivationOutputId("Invalid derivation output id %s", strRep);
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return DrvOutput{
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.drvPath = StorePath(rawPath),
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.outputName = *outputs.begin(),
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};
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}
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std::string DrvOutput::to_string() const {
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return std::string(drvPath.to_string()) + "!" + outputName;
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}
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nlohmann::json Realisation::toJSON() const {
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return nlohmann::json{
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{"id", id.to_string()},
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{"outPath", outPath.to_string()},
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};
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}
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Realisation Realisation::fromJSON(
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const nlohmann::json& json,
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const std::string& whence) {
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auto getField = [&](std::string fieldName) -> std::string {
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auto fieldIterator = json.find(fieldName);
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if (fieldIterator == json.end())
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throw Error(
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"Drv output info file '%1%' is corrupt, missing field %2%",
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whence, fieldName);
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return *fieldIterator;
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};
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return Realisation{
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.id = DrvOutput::parse(getField("id")),
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.outPath = StorePath(getField("outPath")),
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};
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}
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} // namespace nix
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