134 lines
4.1 KiB
C++
134 lines
4.1 KiB
C++
#include "machines.hh"
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#include "worker.hh"
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#include "substitution-goal.hh"
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#include "derivation-goal.hh"
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#include "local-store.hh"
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namespace nix {
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void Store::buildPaths(const std::vector<DerivedPath> & reqs, BuildMode buildMode)
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{
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Worker worker(*this);
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Goals goals;
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for (auto & br : reqs) {
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std::visit(overloaded {
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[&](DerivedPath::Built bfd) {
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goals.insert(worker.makeDerivationGoal(bfd.drvPath, bfd.outputs, buildMode));
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},
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[&](DerivedPath::Opaque bo) {
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goals.insert(worker.makePathSubstitutionGoal(bo.path, buildMode == bmRepair ? Repair : NoRepair));
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},
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}, br.raw());
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}
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worker.run(goals);
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StorePathSet failed;
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std::optional<Error> ex;
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for (auto & i : goals) {
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if (i->ex) {
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if (ex)
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logError(i->ex->info());
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else
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ex = i->ex;
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}
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if (i->exitCode != Goal::ecSuccess) {
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if (auto i2 = dynamic_cast<DerivationGoal *>(i.get())) failed.insert(i2->drvPath);
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else if (auto i2 = dynamic_cast<PathSubstitutionGoal *>(i.get())) failed.insert(i2->storePath);
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}
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}
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if (failed.size() == 1 && ex) {
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ex->status = worker.exitStatus();
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throw *ex;
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} else if (!failed.empty()) {
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if (ex) logError(ex->info());
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throw Error(worker.exitStatus(), "build of %s failed", showPaths(failed));
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}
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}
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BuildResult Store::buildDerivation(const StorePath & drvPath, const BasicDerivation & drv,
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BuildMode buildMode)
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{
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Worker worker(*this);
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auto goal = worker.makeBasicDerivationGoal(drvPath, drv, {}, buildMode);
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BuildResult result;
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try {
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worker.run(Goals{goal});
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result = goal->getResult();
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} catch (Error & e) {
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result.status = BuildResult::MiscFailure;
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result.errorMsg = e.msg();
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}
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// XXX: Should use `goal->queryPartialDerivationOutputMap()` once it's
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// extended to return the full realisation for each output
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auto staticDrvOutputs = drv.outputsAndOptPaths(*this);
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auto outputHashes = staticOutputHashes(*this, drv);
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for (auto & [outputName, staticOutput] : staticDrvOutputs) {
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auto outputId = DrvOutput{outputHashes.at(outputName), outputName};
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if (staticOutput.second)
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result.builtOutputs.insert_or_assign(
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outputId,
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Realisation{ outputId, *staticOutput.second}
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);
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if (settings.isExperimentalFeatureEnabled("ca-derivations") && !derivationHasKnownOutputPaths(drv.type())) {
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auto realisation = this->queryRealisation(outputId);
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if (realisation)
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result.builtOutputs.insert_or_assign(
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outputId,
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*realisation
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);
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}
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}
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return result;
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}
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void Store::ensurePath(const StorePath & path)
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{
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/* If the path is already valid, we're done. */
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if (isValidPath(path)) return;
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Worker worker(*this);
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GoalPtr goal = worker.makePathSubstitutionGoal(path);
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Goals goals = {goal};
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worker.run(goals);
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if (goal->exitCode != Goal::ecSuccess) {
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if (goal->ex) {
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goal->ex->status = worker.exitStatus();
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throw *goal->ex;
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} else
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throw Error(worker.exitStatus(), "path '%s' does not exist and cannot be created", printStorePath(path));
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}
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}
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void LocalStore::repairPath(const StorePath & path)
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{
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Worker worker(*this);
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GoalPtr goal = worker.makePathSubstitutionGoal(path, Repair);
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Goals goals = {goal};
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worker.run(goals);
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if (goal->exitCode != Goal::ecSuccess) {
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/* Since substituting the path didn't work, if we have a valid
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deriver, then rebuild the deriver. */
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auto info = queryPathInfo(path);
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if (info->deriver && isValidPath(*info->deriver)) {
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goals.clear();
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goals.insert(worker.makeDerivationGoal(*info->deriver, StringSet(), bmRepair));
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worker.run(goals);
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} else
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throw Error(worker.exitStatus(), "cannot repair path '%s'", printStorePath(path));
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}
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}
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}
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