forked from lix-project/lix
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.
114 lines
3.1 KiB
C++
114 lines
3.1 KiB
C++
#include "globals.hh"
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#include "installable-attr-path.hh"
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#include "outputs-spec.hh"
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#include "util.hh"
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#include "command.hh"
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#include "attr-path.hh"
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#include "common-eval-args.hh"
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#include "derivations.hh"
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#include "eval-inline.hh"
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#include "eval.hh"
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#include "get-drvs.hh"
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#include "store-api.hh"
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#include "shared.hh"
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#include "flake/flake.hh"
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#include "eval-cache.hh"
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#include "url.hh"
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#include "registry.hh"
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#include "build-result.hh"
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#include <regex>
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#include <queue>
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#include <nlohmann/json.hpp>
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namespace nix {
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InstallableAttrPath::InstallableAttrPath(
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ref<EvalState> state,
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SourceExprCommand & cmd,
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Value * v,
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const std::string & attrPath,
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ExtendedOutputsSpec extendedOutputsSpec)
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: InstallableValue(state)
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, cmd(cmd)
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, v(allocRootValue(v))
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, attrPath(attrPath)
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, extendedOutputsSpec(std::move(extendedOutputsSpec))
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{ }
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std::pair<Value *, PosIdx> InstallableAttrPath::toValue(EvalState & state)
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{
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auto [vRes, pos] = findAlongAttrPath(state, attrPath, *cmd.getAutoArgs(state), **v);
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state.forceValue(*vRes, pos);
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return {vRes, pos};
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}
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DerivedPathsWithInfo InstallableAttrPath::toDerivedPaths()
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{
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auto v = toValue(*state).first;
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Bindings & autoArgs = *cmd.getAutoArgs(*state);
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DrvInfos drvInfos;
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getDerivations(*state, *v, "", autoArgs, drvInfos, false);
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// Backward compatibility hack: group results by drvPath. This
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// helps keep .all output together.
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std::map<StorePath, OutputsSpec> byDrvPath;
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for (auto & drvInfo : drvInfos) {
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auto drvPath = drvInfo.queryDrvPath();
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if (!drvPath)
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throw Error("'%s' is not a derivation", what());
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auto newOutputs = std::visit(overloaded {
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[&](const ExtendedOutputsSpec::Default & d) -> OutputsSpec {
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std::set<std::string> outputsToInstall;
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for (auto & output : drvInfo.queryOutputs(false, true))
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outputsToInstall.insert(output.first);
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return OutputsSpec::Names { std::move(outputsToInstall) };
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},
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[&](const ExtendedOutputsSpec::Explicit & e) -> OutputsSpec {
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return e;
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},
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}, extendedOutputsSpec.raw());
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auto [iter, didInsert] = byDrvPath.emplace(*drvPath, newOutputs);
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if (!didInsert)
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iter->second = iter->second.union_(newOutputs);
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}
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DerivedPathsWithInfo res;
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for (auto & [drvPath, outputs] : byDrvPath)
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res.push_back({
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.path = DerivedPath::Built {
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.drvPath = drvPath,
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.outputs = outputs,
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},
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.info = make_ref<ExtraPathInfoValue>(ExtraPathInfoValue::Value {
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/* FIXME: reconsider backwards compatibility above
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so we can fill in this info. */
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}),
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});
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return res;
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}
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InstallableAttrPath InstallableAttrPath::parse(
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ref<EvalState> state,
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SourceExprCommand & cmd,
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Value * v,
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std::string_view prefix,
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ExtendedOutputsSpec extendedOutputsSpec)
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{
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return {
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state, cmd, v,
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prefix == "." ? "" : std::string { prefix },
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extendedOutputsSpec
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};
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}
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}
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