59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
#include "downstream-placeholder.hh"
|
|
#include "derivations.hh"
|
|
|
|
namespace nix {
|
|
|
|
std::string DownstreamPlaceholder::render() const
|
|
{
|
|
return "/" + hash.to_string(Base::Base32, false);
|
|
}
|
|
|
|
|
|
DownstreamPlaceholder DownstreamPlaceholder::unknownCaOutput(
|
|
const StorePath & drvPath,
|
|
OutputNameView outputName,
|
|
const ExperimentalFeatureSettings & xpSettings)
|
|
{
|
|
xpSettings.require(Xp::CaDerivations);
|
|
auto drvNameWithExtension = drvPath.name();
|
|
auto drvName = drvNameWithExtension.substr(0, drvNameWithExtension.size() - 4);
|
|
auto clearText = "nix-upstream-output:" + std::string { drvPath.hashPart() } + ":" + outputPathName(drvName, outputName);
|
|
return DownstreamPlaceholder {
|
|
hashString(HashType::SHA256, clearText)
|
|
};
|
|
}
|
|
|
|
DownstreamPlaceholder DownstreamPlaceholder::unknownDerivation(
|
|
const DownstreamPlaceholder & placeholder,
|
|
OutputNameView outputName,
|
|
const ExperimentalFeatureSettings & xpSettings)
|
|
{
|
|
xpSettings.require(Xp::DynamicDerivations);
|
|
auto compressed = compressHash(placeholder.hash, 20);
|
|
auto clearText = "nix-computed-output:"
|
|
+ compressed.to_string(Base::Base32, false)
|
|
+ ":" + std::string { outputName };
|
|
return DownstreamPlaceholder {
|
|
hashString(HashType::SHA256, clearText)
|
|
};
|
|
}
|
|
|
|
DownstreamPlaceholder DownstreamPlaceholder::fromSingleDerivedPathBuilt(
|
|
const SingleDerivedPath::Built & b,
|
|
const ExperimentalFeatureSettings & xpSettings)
|
|
{
|
|
return std::visit(overloaded {
|
|
[&](const SingleDerivedPath::Opaque & o) {
|
|
return DownstreamPlaceholder::unknownCaOutput(o.path, b.output, xpSettings);
|
|
},
|
|
[&](const SingleDerivedPath::Built & b2) {
|
|
return DownstreamPlaceholder::unknownDerivation(
|
|
DownstreamPlaceholder::fromSingleDerivedPathBuilt(b2, xpSettings),
|
|
b.output,
|
|
xpSettings);
|
|
},
|
|
}, b.drvPath->raw());
|
|
}
|
|
|
|
}
|