mirror of
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d8c97d8073
The intention is to switch to transparent comparators from N3657 for ordered set containers for strings and using the alias consistently would simplify things.
124 lines
3.7 KiB
C++
124 lines
3.7 KiB
C++
#include "nix/store/globals.hh"
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#include "nix/cmd/installable-attr-path.hh"
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#include "nix/store/outputs-spec.hh"
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#include "nix/util/util.hh"
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#include "nix/cmd/command.hh"
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#include "nix/expr/attr-path.hh"
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#include "nix/cmd/common-eval-args.hh"
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#include "nix/store/derivations.hh"
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#include "nix/expr/eval-inline.hh"
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#include "nix/expr/eval.hh"
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#include "nix/expr/get-drvs.hh"
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#include "nix/store/store-api.hh"
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#include "nix/main/shared.hh"
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#include "nix/flake/flake.hh"
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#include "nix/expr/eval-cache.hh"
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#include "nix/util/url.hh"
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#include "nix/fetchers/registry.hh"
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#include "nix/store/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, pos] = toValue(*state);
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if (std::optional derivedPathWithInfo = trySinglePathToDerivedPaths(
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*v,
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pos,
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fmt("while evaluating the attribute '%s'", attrPath)))
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{
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return { *derivedPathWithInfo };
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}
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Bindings & autoArgs = *cmd.getAutoArgs(*state);
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PackageInfos packageInfos;
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getDerivations(*state, *v, "", autoArgs, packageInfos, 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 & packageInfo : packageInfos) {
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auto drvPath = packageInfo.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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StringSet outputsToInstall;
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for (auto & output : packageInfo.queryOutputs(false, true))
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outputsToInstall.insert(output.first);
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if (outputsToInstall.empty())
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outputsToInstall.insert("out");
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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 = makeConstantStorePathRef(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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.extendedOutputsSpec = outputs,
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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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std::move(extendedOutputsSpec),
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};
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}
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}
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