mirror of
https://github.com/NixOS/nix
synced 2024-09-20 11:11:03 -04:00
256f3e3063
Instead of having a bunch of optional fields, have a few subclasses which can have mandatory fields. Additionally, the new `getExtraPathInfo`, and `nixpkgsFlakeRef`, are moved to `InstallableValue`. I did these things because https://github.com/NixOS/rfcs/pull/134 ; with these things moved to `InstallableValue`, the base `Installable` no longer depends on libexpr! This is a major step towards that. Also, add a bunch of doc comments for sake of the internal API docs.
71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
#include "installable-derived-path.hh"
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#include "derivations.hh"
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namespace nix {
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std::string InstallableDerivedPath::what() const
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{
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return derivedPath.to_string(*store);
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}
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DerivedPathsWithInfo InstallableDerivedPath::toDerivedPaths()
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{
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return {{
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.path = derivedPath,
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.info = make_ref<ExtraPathInfo>(),
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}};
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}
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std::optional<StorePath> InstallableDerivedPath::getStorePath()
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{
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return std::visit(overloaded {
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[&](const DerivedPath::Built & bfd) {
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return bfd.drvPath;
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},
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[&](const DerivedPath::Opaque & bo) {
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return bo.path;
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},
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}, derivedPath.raw());
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}
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InstallableDerivedPath InstallableDerivedPath::parse(
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ref<Store> store,
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std::string_view prefix,
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ExtendedOutputsSpec extendedOutputsSpec)
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{
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auto derivedPath = std::visit(overloaded {
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// If the user did not use ^, we treat the output more
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// liberally: we accept a symlink chain or an actual
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// store path.
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[&](const ExtendedOutputsSpec::Default &) -> DerivedPath {
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auto storePath = store->followLinksToStorePath(prefix);
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// Remove this prior to stabilizing the new CLI.
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if (storePath.isDerivation()) {
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auto oldDerivedPath = DerivedPath::Built {
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.drvPath = storePath,
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.outputs = OutputsSpec::All { },
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};
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warn(
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"The interpretation of store paths arguments ending in `.drv` recently changed. If this command is now failing try again with '%s'",
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oldDerivedPath.to_string(*store));
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};
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return DerivedPath::Opaque {
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.path = std::move(storePath),
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};
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},
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// If the user did use ^, we just do exactly what is written.
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[&](const ExtendedOutputsSpec::Explicit & outputSpec) -> DerivedPath {
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return DerivedPath::Built {
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.drvPath = store->parseStorePath(prefix),
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.outputs = outputSpec,
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};
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},
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}, extendedOutputsSpec.raw());
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return InstallableDerivedPath {
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store,
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std::move(derivedPath),
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};
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}
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}
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