mirror of
https://github.com/NixOS/nix
synced 2025-07-06 21:41:48 +02:00
Merge branch 'master' into valid_deriver_2
This commit is contained in:
Eelco Dolstra
GitHub
commit
919781cacc
44 changed files with 1012 additions and 290 deletions
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|
@ -345,7 +345,7 @@ void LockFile::check()
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for (auto & [inputPath, input] : inputs) {
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if (auto follows = std::get_if<1>(&input)) {
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if (!follows->empty() && !get(inputs, *follows))
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if (!follows->empty() && !findInput(*follows))
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throw Error("input '%s' follows a non-existent input '%s'",
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printInputPath(inputPath),
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printInputPath(*follows));
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|
|
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|
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@ -1520,15 +1520,25 @@ static RegisterPrimOp primop_storePath({
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static void prim_pathExists(EvalState & state, const PosIdx pos, Value * * args, Value & v)
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{
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auto & arg = *args[0];
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/* We don’t check the path right now, because we don’t want to
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throw if the path isn’t allowed, but just return false (and we
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can’t just catch the exception here because we still want to
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throw if something in the evaluation of `*args[0]` tries to
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throw if something in the evaluation of `arg` tries to
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access an unauthorized path). */
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auto path = realisePath(state, pos, *args[0], { .checkForPureEval = false });
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auto path = realisePath(state, pos, arg, { .checkForPureEval = false });
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/* SourcePath doesn't know about trailing slash. */
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auto mustBeDir = arg.type() == nString && arg.str().ends_with("/");
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try {
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v.mkBool(state.checkSourcePath(path).pathExists());
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auto checked = state.checkSourcePath(path);
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auto exists = checked.pathExists();
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if (exists && mustBeDir) {
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exists = checked.lstat().type == InputAccessor::tDirectory;
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}
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v.mkBool(exists);
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} catch (SysError & e) {
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/* Don't give away info from errors while canonicalising
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‘path’ in restricted mode. */
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@ -1843,7 +1853,7 @@ static void prim_outputOf(EvalState & state, const PosIdx pos, Value * * args, V
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{
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SingleDerivedPath drvPath = state.coerceToSingleDerivedPath(pos, *args[0], "while evaluating the first argument to builtins.outputOf");
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std::string_view outputName = state.forceStringNoCtx(*args[1], pos, "while evaluating the second argument to builtins.outputOf");
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OutputNameView outputName = state.forceStringNoCtx(*args[1], pos, "while evaluating the second argument to builtins.outputOf");
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state.mkSingleDerivedPathString(
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SingleDerivedPath::Built {
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@ -232,7 +232,7 @@ struct CurlInputScheme : InputScheme
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if (type != inputType()) return {};
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// FIXME: some of these only apply to TarballInputScheme.
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std::set<std::string> allowedNames = {"type", "url", "narHash", "name", "unpack", "rev", "revCount"};
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std::set<std::string> allowedNames = {"type", "url", "narHash", "name", "unpack", "rev", "revCount", "lastModified"};
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for (auto & [name, value] : attrs)
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if (!allowedNames.count(name))
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throw Error("unsupported %s input attribute '%s'", *type, name);
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@ -310,6 +310,9 @@ struct TarballInputScheme : CurlInputScheme
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input = immutableInput;
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}
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if (result.lastModified && !input.attrs.contains("lastModified"))
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input.attrs.insert_or_assign("lastModified", uint64_t(result.lastModified));
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return {result.tree.storePath, std::move(input)};
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}
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};
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|
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157
src/libstore/build/create-derivation-and-realise-goal.cc
Normal file
157
src/libstore/build/create-derivation-and-realise-goal.cc
Normal file
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@ -0,0 +1,157 @@
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#include "create-derivation-and-realise-goal.hh"
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#include "worker.hh"
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namespace nix {
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CreateDerivationAndRealiseGoal::CreateDerivationAndRealiseGoal(ref<SingleDerivedPath> drvReq,
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const OutputsSpec & wantedOutputs, Worker & worker, BuildMode buildMode)
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: Goal(worker, DerivedPath::Built { .drvPath = drvReq, .outputs = wantedOutputs })
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, drvReq(drvReq)
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, wantedOutputs(wantedOutputs)
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, buildMode(buildMode)
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{
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state = &CreateDerivationAndRealiseGoal::getDerivation;
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name = fmt(
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"outer obtaining drv from '%s' and then building outputs %s",
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drvReq->to_string(worker.store),
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std::visit(overloaded {
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[&](const OutputsSpec::All) -> std::string {
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return "* (all of them)";
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},
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[&](const OutputsSpec::Names os) {
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return concatStringsSep(", ", quoteStrings(os));
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},
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}, wantedOutputs.raw));
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trace("created outer");
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worker.updateProgress();
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}
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CreateDerivationAndRealiseGoal::~CreateDerivationAndRealiseGoal()
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{
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}
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static StorePath pathPartOfReq(const SingleDerivedPath & req)
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{
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return std::visit(overloaded {
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[&](const SingleDerivedPath::Opaque & bo) {
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return bo.path;
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},
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[&](const SingleDerivedPath::Built & bfd) {
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return pathPartOfReq(*bfd.drvPath);
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},
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}, req.raw());
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}
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std::string CreateDerivationAndRealiseGoal::key()
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{
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/* Ensure that derivations get built in order of their name,
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i.e. a derivation named "aardvark" always comes before "baboon". And
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substitution goals and inner derivation goals always happen before
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derivation goals (due to "b$"). */
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return "c$" + std::string(pathPartOfReq(*drvReq).name()) + "$" + drvReq->to_string(worker.store);
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}
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void CreateDerivationAndRealiseGoal::timedOut(Error && ex)
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{
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}
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void CreateDerivationAndRealiseGoal::work()
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{
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(this->*state)();
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}
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void CreateDerivationAndRealiseGoal::addWantedOutputs(const OutputsSpec & outputs)
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{
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/* If we already want all outputs, there is nothing to do. */
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auto newWanted = wantedOutputs.union_(outputs);
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bool needRestart = !newWanted.isSubsetOf(wantedOutputs);
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wantedOutputs = newWanted;
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if (!needRestart) return;
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if (!optDrvPath)
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// haven't started steps where the outputs matter yet
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return;
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worker.makeDerivationGoal(*optDrvPath, outputs, buildMode);
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}
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void CreateDerivationAndRealiseGoal::getDerivation()
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{
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trace("outer init");
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/* The first thing to do is to make sure that the derivation
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exists. If it doesn't, it may be created through a
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substitute. */
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if (auto optDrvPath = [this]() -> std::optional<StorePath> {
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if (buildMode != bmNormal) return std::nullopt;
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auto drvPath = StorePath::dummy;
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try {
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drvPath = resolveDerivedPath(worker.store, *drvReq);
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} catch (MissingRealisation) {
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return std::nullopt;
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}
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return worker.evalStore.isValidPath(drvPath) || worker.store.isValidPath(drvPath)
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? std::optional { drvPath }
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: std::nullopt;
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}()) {
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trace(fmt("already have drv '%s' for '%s', can go straight to building",
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worker.store.printStorePath(*optDrvPath),
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drvReq->to_string(worker.store)));
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loadAndBuildDerivation();
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} else {
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trace("need to obtain drv we want to build");
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addWaitee(worker.makeGoal(DerivedPath::fromSingle(*drvReq)));
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state = &CreateDerivationAndRealiseGoal::loadAndBuildDerivation;
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if (waitees.empty()) work();
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}
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}
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void CreateDerivationAndRealiseGoal::loadAndBuildDerivation()
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{
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trace("outer load and build derivation");
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|
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if (nrFailed != 0) {
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amDone(ecFailed, Error("cannot build missing derivation '%s'", drvReq->to_string(worker.store)));
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return;
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}
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StorePath drvPath = resolveDerivedPath(worker.store, *drvReq);
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/* Build this step! */
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concreteDrvGoal = worker.makeDerivationGoal(drvPath, wantedOutputs, buildMode);
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addWaitee(upcast_goal(concreteDrvGoal));
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state = &CreateDerivationAndRealiseGoal::buildDone;
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optDrvPath = std::move(drvPath);
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if (waitees.empty()) work();
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}
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void CreateDerivationAndRealiseGoal::buildDone()
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{
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trace("outer build done");
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buildResult = upcast_goal(concreteDrvGoal)->getBuildResult(DerivedPath::Built {
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.drvPath = drvReq,
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.outputs = wantedOutputs,
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});
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if (buildResult.success())
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amDone(ecSuccess);
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else
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amDone(ecFailed, Error("building '%s' failed", drvReq->to_string(worker.store)));
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}
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}
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96
src/libstore/build/create-derivation-and-realise-goal.hh
Normal file
96
src/libstore/build/create-derivation-and-realise-goal.hh
Normal file
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@ -0,0 +1,96 @@
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#pragma once
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#include "parsed-derivations.hh"
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#include "lock.hh"
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#include "store-api.hh"
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#include "pathlocks.hh"
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#include "goal.hh"
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namespace nix {
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struct DerivationGoal;
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/**
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* This goal type is essentially the serial composition (like function
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* composition) of a goal for getting a derivation, and then a
|
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* `DerivationGoal` using the newly-obtained derivation.
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*
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* In the (currently experimental) general inductive case of derivations
|
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* that are themselves build outputs, that first goal will be *another*
|
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* `CreateDerivationAndRealiseGoal`. In the (much more common) base-case
|
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* where the derivation has no provence and is just referred to by
|
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* (content-addressed) store path, that first goal is a
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* `SubstitutionGoal`.
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*
|
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* If we already have the derivation (e.g. if the evalutator has created
|
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* the derivation locally and then instructured the store to build it),
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* we can skip the first goal entirely as a small optimization.
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*/
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struct CreateDerivationAndRealiseGoal : public Goal
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{
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/**
|
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* How to obtain a store path of the derivation to build.
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*/
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ref<SingleDerivedPath> drvReq;
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/**
|
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* The path of the derivation, once obtained.
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**/
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std::optional<StorePath> optDrvPath;
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|
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/**
|
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* The goal for the corresponding concrete derivation.
|
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**/
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std::shared_ptr<DerivationGoal> concreteDrvGoal;
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|
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/**
|
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* The specific outputs that we need to build.
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*/
|
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OutputsSpec wantedOutputs;
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|
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typedef void (CreateDerivationAndRealiseGoal::*GoalState)();
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GoalState state;
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|
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/**
|
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* The final output paths of the build.
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*
|
||||
* - For input-addressed derivations, always the precomputed paths
|
||||
*
|
||||
* - For content-addressed derivations, calcuated from whatever the
|
||||
* hash ends up being. (Note that fixed outputs derivations that
|
||||
* produce the "wrong" output still install that data under its
|
||||
* true content-address.)
|
||||
*/
|
||||
OutputPathMap finalOutputs;
|
||||
|
||||
BuildMode buildMode;
|
||||
|
||||
CreateDerivationAndRealiseGoal(ref<SingleDerivedPath> drvReq,
|
||||
const OutputsSpec & wantedOutputs, Worker & worker,
|
||||
BuildMode buildMode = bmNormal);
|
||||
virtual ~CreateDerivationAndRealiseGoal();
|
||||
|
||||
void timedOut(Error && ex) override;
|
||||
|
||||
std::string key() override;
|
||||
|
||||
void work() override;
|
||||
|
||||
/**
|
||||
* Add wanted outputs to an already existing derivation goal.
|
||||
*/
|
||||
void addWantedOutputs(const OutputsSpec & outputs);
|
||||
|
||||
/**
|
||||
* The states.
|
||||
*/
|
||||
void getDerivation();
|
||||
void loadAndBuildDerivation();
|
||||
void buildDone();
|
||||
|
||||
JobCategory jobCategory() const override {
|
||||
return JobCategory::Administration;
|
||||
};
|
||||
};
|
||||
|
||||
}
|
||||
|
|
@ -71,7 +71,7 @@ DerivationGoal::DerivationGoal(const StorePath & drvPath,
|
|||
, wantedOutputs(wantedOutputs)
|
||||
, buildMode(buildMode)
|
||||
{
|
||||
state = &DerivationGoal::getDerivation;
|
||||
state = &DerivationGoal::loadDerivation;
|
||||
name = fmt(
|
||||
"building of '%s' from .drv file",
|
||||
DerivedPath::Built { makeConstantStorePathRef(drvPath), wantedOutputs }.to_string(worker.store));
|
||||
|
|
@ -164,24 +164,6 @@ void DerivationGoal::addWantedOutputs(const OutputsSpec & outputs)
|
|||
}
|
||||
|
||||
|
||||
void DerivationGoal::getDerivation()
|
||||
{
|
||||
trace("init");
|
||||
|
||||
/* The first thing to do is to make sure that the derivation
|
||||
exists. If it doesn't, it may be created through a
|
||||
substitute. */
|
||||
if (buildMode == bmNormal && worker.evalStore.isValidPath(drvPath)) {
|
||||
loadDerivation();
|
||||
return;
|
||||
}
|
||||
|
||||
addWaitee(upcast_goal(worker.makePathSubstitutionGoal(drvPath)));
|
||||
|
||||
state = &DerivationGoal::loadDerivation;
|
||||
}
|
||||
|
||||
|
||||
void DerivationGoal::loadDerivation()
|
||||
{
|
||||
trace("loading derivation");
|
||||
|
|
@ -380,7 +362,12 @@ void DerivationGoal::gaveUpOnSubstitution()
|
|||
worker.store.printStorePath(i.first));
|
||||
}
|
||||
|
||||
addWaitee(worker.makeDerivationGoal(i.first, i.second, buildMode == bmRepair ? bmRepair : bmNormal));
|
||||
addWaitee(worker.makeGoal(
|
||||
DerivedPath::Built {
|
||||
.drvPath = makeConstantStorePathRef(i.first),
|
||||
.outputs = i.second,
|
||||
},
|
||||
buildMode == bmRepair ? bmRepair : bmNormal));
|
||||
}
|
||||
|
||||
/* Copy the input sources from the eval store to the build
|
||||
|
|
@ -452,7 +439,12 @@ void DerivationGoal::repairClosure()
|
|||
if (drvPath2 == outputsToDrv.end())
|
||||
addWaitee(upcast_goal(worker.makePathSubstitutionGoal(i, Repair)));
|
||||
else
|
||||
addWaitee(worker.makeDerivationGoal(drvPath2->second, OutputsSpec::All(), bmRepair));
|
||||
addWaitee(worker.makeGoal(
|
||||
DerivedPath::Built {
|
||||
.drvPath = makeConstantStorePathRef(drvPath2->second),
|
||||
.outputs = OutputsSpec::All { },
|
||||
},
|
||||
bmRepair));
|
||||
}
|
||||
|
||||
if (waitees.empty()) {
|
||||
|
|
@ -1483,7 +1475,7 @@ void DerivationGoal::waiteeDone(GoalPtr waitee, ExitCode result)
|
|||
if (!useDerivation) return;
|
||||
auto & fullDrv = *dynamic_cast<Derivation *>(drv.get());
|
||||
|
||||
auto * dg = dynamic_cast<DerivationGoal *>(&*waitee);
|
||||
auto * dg = tryGetConcreteDrvGoal(waitee);
|
||||
if (!dg) return;
|
||||
|
||||
auto outputs = fullDrv.inputDrvs.find(dg->drvPath);
|
||||
|
|
|
|||
|
|
@ -50,6 +50,13 @@ struct InitialOutput {
|
|||
std::optional<InitialOutputStatus> known;
|
||||
};
|
||||
|
||||
/**
|
||||
* A goal for building some or all of the outputs of a derivation.
|
||||
*
|
||||
* The derivation must already be present, either in the store in a drv
|
||||
* or in memory. If the derivation itself needs to be gotten first, a
|
||||
* `CreateDerivationAndRealiseGoal` goal must be used instead.
|
||||
*/
|
||||
struct DerivationGoal : public Goal
|
||||
{
|
||||
/**
|
||||
|
|
@ -66,8 +73,7 @@ struct DerivationGoal : public Goal
|
|||
std::shared_ptr<DerivationGoal> resolvedDrvGoal;
|
||||
|
||||
/**
|
||||
* The specific outputs that we need to build. Empty means all of
|
||||
* them.
|
||||
* The specific outputs that we need to build.
|
||||
*/
|
||||
OutputsSpec wantedOutputs;
|
||||
|
||||
|
|
@ -229,7 +235,6 @@ struct DerivationGoal : public Goal
|
|||
/**
|
||||
* The states.
|
||||
*/
|
||||
void getDerivation();
|
||||
void loadDerivation();
|
||||
void haveDerivation();
|
||||
void outputsSubstitutionTried();
|
||||
|
|
@ -334,7 +339,9 @@ struct DerivationGoal : public Goal
|
|||
|
||||
StorePathSet exportReferences(const StorePathSet & storePaths);
|
||||
|
||||
JobCategory jobCategory() override { return JobCategory::Build; };
|
||||
JobCategory jobCategory() const override {
|
||||
return JobCategory::Build;
|
||||
};
|
||||
};
|
||||
|
||||
MakeError(NotDeterministic, BuildError);
|
||||
|
|
|
|||
|
|
@ -73,7 +73,9 @@ public:
|
|||
void work() override;
|
||||
void handleEOF(int fd) override;
|
||||
|
||||
JobCategory jobCategory() override { return JobCategory::Substitution; };
|
||||
JobCategory jobCategory() const override {
|
||||
return JobCategory::Substitution;
|
||||
};
|
||||
};
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,5 +1,6 @@
|
|||
#include "worker.hh"
|
||||
#include "substitution-goal.hh"
|
||||
#include "create-derivation-and-realise-goal.hh"
|
||||
#include "derivation-goal.hh"
|
||||
#include "local-store.hh"
|
||||
|
||||
|
|
@ -15,7 +16,7 @@ void Store::buildPaths(const std::vector<DerivedPath> & reqs, BuildMode buildMod
|
|||
|
||||
worker.run(goals);
|
||||
|
||||
StorePathSet failed;
|
||||
StringSet failed;
|
||||
std::optional<Error> ex;
|
||||
for (auto & i : goals) {
|
||||
if (i->ex) {
|
||||
|
|
@ -25,8 +26,10 @@ void Store::buildPaths(const std::vector<DerivedPath> & reqs, BuildMode buildMod
|
|||
ex = std::move(i->ex);
|
||||
}
|
||||
if (i->exitCode != Goal::ecSuccess) {
|
||||
if (auto i2 = dynamic_cast<DerivationGoal *>(i.get())) failed.insert(i2->drvPath);
|
||||
else if (auto i2 = dynamic_cast<PathSubstitutionGoal *>(i.get())) failed.insert(i2->storePath);
|
||||
if (auto i2 = dynamic_cast<CreateDerivationAndRealiseGoal *>(i.get()))
|
||||
failed.insert(i2->drvReq->to_string(*this));
|
||||
else if (auto i2 = dynamic_cast<PathSubstitutionGoal *>(i.get()))
|
||||
failed.insert(printStorePath(i2->storePath));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -35,7 +38,7 @@ void Store::buildPaths(const std::vector<DerivedPath> & reqs, BuildMode buildMod
|
|||
throw std::move(*ex);
|
||||
} else if (!failed.empty()) {
|
||||
if (ex) logError(ex->info());
|
||||
throw Error(worker.failingExitStatus(), "build of %s failed", showPaths(failed));
|
||||
throw Error(worker.failingExitStatus(), "build of %s failed", concatStringsSep(", ", quoteStrings(failed)));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -124,8 +127,11 @@ void Store::repairPath(const StorePath & path)
|
|||
auto info = queryPathInfo(path);
|
||||
if (info->deriver && isValidPath(*info->deriver)) {
|
||||
goals.clear();
|
||||
// FIXME: Should just build the specific output we need.
|
||||
goals.insert(worker.makeDerivationGoal(*info->deriver, OutputsSpec::All { }, bmRepair));
|
||||
goals.insert(worker.makeGoal(DerivedPath::Built {
|
||||
.drvPath = makeConstantStorePathRef(*info->deriver),
|
||||
// FIXME: Should just build the specific output we need.
|
||||
.outputs = OutputsSpec::All { },
|
||||
}, bmRepair));
|
||||
worker.run(goals);
|
||||
} else
|
||||
throw Error(worker.failingExitStatus(), "cannot repair path '%s'", printStorePath(path));
|
||||
|
|
|
|||
|
|
@ -11,7 +11,7 @@ bool CompareGoalPtrs::operator() (const GoalPtr & a, const GoalPtr & b) const {
|
|||
}
|
||||
|
||||
|
||||
BuildResult Goal::getBuildResult(const DerivedPath & req) {
|
||||
BuildResult Goal::getBuildResult(const DerivedPath & req) const {
|
||||
BuildResult res { buildResult };
|
||||
|
||||
if (auto pbp = std::get_if<DerivedPath::Built>(&req)) {
|
||||
|
|
|
|||
|
|
@ -41,8 +41,24 @@ typedef std::map<StorePath, WeakGoalPtr> WeakGoalMap;
|
|||
* of each category in parallel.
|
||||
*/
|
||||
enum struct JobCategory {
|
||||
/**
|
||||
* A build of a derivation; it will use CPU and disk resources.
|
||||
*/
|
||||
Build,
|
||||
/**
|
||||
* A substitution an arbitrary store object; it will use network resources.
|
||||
*/
|
||||
Substitution,
|
||||
/**
|
||||
* A goal that does no "real" work by itself, and just exists to depend on
|
||||
* other goals which *do* do real work. These goals therefore are not
|
||||
* limited.
|
||||
*
|
||||
* These goals cannot infinitely create themselves, so there is no risk of
|
||||
* a "fork bomb" type situation (which would be a problem even though the
|
||||
* goal do no real work) either.
|
||||
*/
|
||||
Administration,
|
||||
};
|
||||
|
||||
struct Goal : public std::enable_shared_from_this<Goal>
|
||||
|
|
@ -110,7 +126,7 @@ public:
|
|||
* sake of both privacy and determinism, and this "safe accessor"
|
||||
* ensures we don't.
|
||||
*/
|
||||
BuildResult getBuildResult(const DerivedPath &);
|
||||
BuildResult getBuildResult(const DerivedPath &) const;
|
||||
|
||||
/**
|
||||
* Exception containing an error message, if any.
|
||||
|
|
@ -144,7 +160,7 @@ public:
|
|||
|
||||
void trace(std::string_view s);
|
||||
|
||||
std::string getName()
|
||||
std::string getName() const
|
||||
{
|
||||
return name;
|
||||
}
|
||||
|
|
@ -166,7 +182,7 @@ public:
|
|||
* @brief Hint for the scheduler, which concurrency limit applies.
|
||||
* @see JobCategory
|
||||
*/
|
||||
virtual JobCategory jobCategory() = 0;
|
||||
virtual JobCategory jobCategory() const = 0;
|
||||
};
|
||||
|
||||
void addToWeakGoals(WeakGoals & goals, GoalPtr p);
|
||||
|
|
|
|||
|
|
@ -2955,7 +2955,7 @@ bool LocalDerivationGoal::isReadDesc(int fd)
|
|||
}
|
||||
|
||||
|
||||
StorePath LocalDerivationGoal::makeFallbackPath(std::string_view outputName)
|
||||
StorePath LocalDerivationGoal::makeFallbackPath(OutputNameView outputName)
|
||||
{
|
||||
return worker.store.makeStorePath(
|
||||
"rewrite:" + std::string(drvPath.to_string()) + ":name:" + std::string(outputName),
|
||||
|
|
|
|||
|
|
@ -297,7 +297,7 @@ struct LocalDerivationGoal : public DerivationGoal
|
|||
* @todo Add option to randomize, so we can audit whether our
|
||||
* rewrites caught everything
|
||||
*/
|
||||
StorePath makeFallbackPath(std::string_view outputName);
|
||||
StorePath makeFallbackPath(OutputNameView outputName);
|
||||
};
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -117,7 +117,9 @@ public:
|
|||
/* Called by destructor, can't be overridden */
|
||||
void cleanup() override final;
|
||||
|
||||
JobCategory jobCategory() override { return JobCategory::Substitution; };
|
||||
JobCategory jobCategory() const override {
|
||||
return JobCategory::Substitution;
|
||||
};
|
||||
};
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -2,6 +2,7 @@
|
|||
#include "worker.hh"
|
||||
#include "substitution-goal.hh"
|
||||
#include "drv-output-substitution-goal.hh"
|
||||
#include "create-derivation-and-realise-goal.hh"
|
||||
#include "local-derivation-goal.hh"
|
||||
#include "hook-instance.hh"
|
||||
|
||||
|
|
@ -41,6 +42,24 @@ Worker::~Worker()
|
|||
}
|
||||
|
||||
|
||||
std::shared_ptr<CreateDerivationAndRealiseGoal> Worker::makeCreateDerivationAndRealiseGoal(
|
||||
ref<SingleDerivedPath> drvReq,
|
||||
const OutputsSpec & wantedOutputs,
|
||||
BuildMode buildMode)
|
||||
{
|
||||
std::weak_ptr<CreateDerivationAndRealiseGoal> & goal_weak = outerDerivationGoals.ensureSlot(*drvReq).value;
|
||||
std::shared_ptr<CreateDerivationAndRealiseGoal> goal = goal_weak.lock();
|
||||
if (!goal) {
|
||||
goal = std::make_shared<CreateDerivationAndRealiseGoal>(drvReq, wantedOutputs, *this, buildMode);
|
||||
goal_weak = goal;
|
||||
wakeUp(goal);
|
||||
} else {
|
||||
goal->addWantedOutputs(wantedOutputs);
|
||||
}
|
||||
return goal;
|
||||
}
|
||||
|
||||
|
||||
std::shared_ptr<DerivationGoal> Worker::makeDerivationGoalCommon(
|
||||
const StorePath & drvPath,
|
||||
const OutputsSpec & wantedOutputs,
|
||||
|
|
@ -111,10 +130,7 @@ GoalPtr Worker::makeGoal(const DerivedPath & req, BuildMode buildMode)
|
|||
{
|
||||
return std::visit(overloaded {
|
||||
[&](const DerivedPath::Built & bfd) -> GoalPtr {
|
||||
if (auto bop = std::get_if<DerivedPath::Opaque>(&*bfd.drvPath))
|
||||
return makeDerivationGoal(bop->path, bfd.outputs, buildMode);
|
||||
else
|
||||
throw UnimplementedError("Building dynamic derivations in one shot is not yet implemented.");
|
||||
return makeCreateDerivationAndRealiseGoal(bfd.drvPath, bfd.outputs, buildMode);
|
||||
},
|
||||
[&](const DerivedPath::Opaque & bo) -> GoalPtr {
|
||||
return makePathSubstitutionGoal(bo.path, buildMode == bmRepair ? Repair : NoRepair);
|
||||
|
|
@ -123,24 +139,46 @@ GoalPtr Worker::makeGoal(const DerivedPath & req, BuildMode buildMode)
|
|||
}
|
||||
|
||||
|
||||
template<typename K, typename V, typename F>
|
||||
static void cullMap(std::map<K, V> & goalMap, F f)
|
||||
{
|
||||
for (auto i = goalMap.begin(); i != goalMap.end();)
|
||||
if (!f(i->second))
|
||||
i = goalMap.erase(i);
|
||||
else ++i;
|
||||
}
|
||||
|
||||
|
||||
template<typename K, typename G>
|
||||
static void removeGoal(std::shared_ptr<G> goal, std::map<K, std::weak_ptr<G>> & goalMap)
|
||||
{
|
||||
/* !!! inefficient */
|
||||
for (auto i = goalMap.begin();
|
||||
i != goalMap.end(); )
|
||||
if (i->second.lock() == goal) {
|
||||
auto j = i; ++j;
|
||||
goalMap.erase(i);
|
||||
i = j;
|
||||
}
|
||||
else ++i;
|
||||
cullMap(goalMap, [&](const std::weak_ptr<G> & gp) -> bool {
|
||||
return gp.lock() != goal;
|
||||
});
|
||||
}
|
||||
|
||||
template<typename K>
|
||||
static void removeGoal(std::shared_ptr<CreateDerivationAndRealiseGoal> goal, std::map<K, DerivedPathMap<std::weak_ptr<CreateDerivationAndRealiseGoal>>::ChildNode> & goalMap);
|
||||
|
||||
template<typename K>
|
||||
static void removeGoal(std::shared_ptr<CreateDerivationAndRealiseGoal> goal, std::map<K, DerivedPathMap<std::weak_ptr<CreateDerivationAndRealiseGoal>>::ChildNode> & goalMap)
|
||||
{
|
||||
/* !!! inefficient */
|
||||
cullMap(goalMap, [&](DerivedPathMap<std::weak_ptr<CreateDerivationAndRealiseGoal>>::ChildNode & node) -> bool {
|
||||
if (node.value.lock() == goal)
|
||||
node.value.reset();
|
||||
removeGoal(goal, node.childMap);
|
||||
return !node.value.expired() || !node.childMap.empty();
|
||||
});
|
||||
}
|
||||
|
||||
|
||||
void Worker::removeGoal(GoalPtr goal)
|
||||
{
|
||||
if (auto drvGoal = std::dynamic_pointer_cast<DerivationGoal>(goal))
|
||||
if (auto drvGoal = std::dynamic_pointer_cast<CreateDerivationAndRealiseGoal>(goal))
|
||||
nix::removeGoal(drvGoal, outerDerivationGoals.map);
|
||||
else if (auto drvGoal = std::dynamic_pointer_cast<DerivationGoal>(goal))
|
||||
nix::removeGoal(drvGoal, derivationGoals);
|
||||
else if (auto subGoal = std::dynamic_pointer_cast<PathSubstitutionGoal>(goal))
|
||||
nix::removeGoal(subGoal, substitutionGoals);
|
||||
|
|
@ -198,8 +236,19 @@ void Worker::childStarted(GoalPtr goal, const std::set<int> & fds,
|
|||
child.respectTimeouts = respectTimeouts;
|
||||
children.emplace_back(child);
|
||||
if (inBuildSlot) {
|
||||
if (goal->jobCategory() == JobCategory::Substitution) nrSubstitutions++;
|
||||
else nrLocalBuilds++;
|
||||
switch (goal->jobCategory()) {
|
||||
case JobCategory::Substitution:
|
||||
nrSubstitutions++;
|
||||
break;
|
||||
case JobCategory::Build:
|
||||
nrLocalBuilds++;
|
||||
break;
|
||||
case JobCategory::Administration:
|
||||
/* Intentionally not limited, see docs */
|
||||
break;
|
||||
default:
|
||||
abort();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -211,12 +260,20 @@ void Worker::childTerminated(Goal * goal, bool wakeSleepers)
|
|||
if (i == children.end()) return;
|
||||
|
||||
if (i->inBuildSlot) {
|
||||
if (goal->jobCategory() == JobCategory::Substitution) {
|
||||
switch (goal->jobCategory()) {
|
||||
case JobCategory::Substitution:
|
||||
assert(nrSubstitutions > 0);
|
||||
nrSubstitutions--;
|
||||
} else {
|
||||
break;
|
||||
case JobCategory::Build:
|
||||
assert(nrLocalBuilds > 0);
|
||||
nrLocalBuilds--;
|
||||
break;
|
||||
case JobCategory::Administration:
|
||||
/* Intentionally not limited, see docs */
|
||||
break;
|
||||
default:
|
||||
abort();
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -267,9 +324,9 @@ void Worker::run(const Goals & _topGoals)
|
|||
|
||||
for (auto & i : _topGoals) {
|
||||
topGoals.insert(i);
|
||||
if (auto goal = dynamic_cast<DerivationGoal *>(i.get())) {
|
||||
if (auto goal = dynamic_cast<CreateDerivationAndRealiseGoal *>(i.get())) {
|
||||
topPaths.push_back(DerivedPath::Built {
|
||||
.drvPath = makeConstantStorePathRef(goal->drvPath),
|
||||
.drvPath = goal->drvReq,
|
||||
.outputs = goal->wantedOutputs,
|
||||
});
|
||||
} else if (auto goal = dynamic_cast<PathSubstitutionGoal *>(i.get())) {
|
||||
|
|
@ -522,11 +579,26 @@ void Worker::markContentsGood(const StorePath & path)
|
|||
}
|
||||
|
||||
|
||||
GoalPtr upcast_goal(std::shared_ptr<PathSubstitutionGoal> subGoal) {
|
||||
return subGoal;
|
||||
}
|
||||
GoalPtr upcast_goal(std::shared_ptr<DrvOutputSubstitutionGoal> subGoal) {
|
||||
GoalPtr upcast_goal(std::shared_ptr<PathSubstitutionGoal> subGoal)
|
||||
{
|
||||
return subGoal;
|
||||
}
|
||||
|
||||
GoalPtr upcast_goal(std::shared_ptr<DrvOutputSubstitutionGoal> subGoal)
|
||||
{
|
||||
return subGoal;
|
||||
}
|
||||
|
||||
GoalPtr upcast_goal(std::shared_ptr<DerivationGoal> subGoal)
|
||||
{
|
||||
return subGoal;
|
||||
}
|
||||
|
||||
const DerivationGoal * tryGetConcreteDrvGoal(GoalPtr waitee)
|
||||
{
|
||||
auto * odg = dynamic_cast<CreateDerivationAndRealiseGoal *>(&*waitee);
|
||||
if (!odg) return nullptr;
|
||||
return &*odg->concreteDrvGoal;
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -4,6 +4,7 @@
|
|||
#include "types.hh"
|
||||
#include "lock.hh"
|
||||
#include "store-api.hh"
|
||||
#include "derived-path-map.hh"
|
||||
#include "goal.hh"
|
||||
#include "realisation.hh"
|
||||
|
||||
|
|
@ -13,6 +14,7 @@
|
|||
namespace nix {
|
||||
|
||||
/* Forward definition. */
|
||||
struct CreateDerivationAndRealiseGoal;
|
||||
struct DerivationGoal;
|
||||
struct PathSubstitutionGoal;
|
||||
class DrvOutputSubstitutionGoal;
|
||||
|
|
@ -31,9 +33,23 @@ class DrvOutputSubstitutionGoal;
|
|||
*/
|
||||
GoalPtr upcast_goal(std::shared_ptr<PathSubstitutionGoal> subGoal);
|
||||
GoalPtr upcast_goal(std::shared_ptr<DrvOutputSubstitutionGoal> subGoal);
|
||||
GoalPtr upcast_goal(std::shared_ptr<DerivationGoal> subGoal);
|
||||
|
||||
typedef std::chrono::time_point<std::chrono::steady_clock> steady_time_point;
|
||||
|
||||
/**
|
||||
* The current implementation of impure derivations has
|
||||
* `DerivationGoal`s accumulate realisations from their waitees.
|
||||
* Unfortunately, `DerivationGoal`s don't directly depend on other
|
||||
* goals, but instead depend on `CreateDerivationAndRealiseGoal`s.
|
||||
*
|
||||
* We try not to share any of the details of any goal type with any
|
||||
* other, for sake of modularity and quicker rebuilds. This means we
|
||||
* cannot "just" downcast and fish out the field. So as an escape hatch,
|
||||
* we have made the function, written in `worker.cc` where all the goal
|
||||
* types are visible, and use it instead.
|
||||
*/
|
||||
const DerivationGoal * tryGetConcreteDrvGoal(GoalPtr waitee);
|
||||
|
||||
/**
|
||||
* A mapping used to remember for each child process to what goal it
|
||||
|
|
@ -102,6 +118,9 @@ private:
|
|||
* Maps used to prevent multiple instantiations of a goal for the
|
||||
* same derivation / path.
|
||||
*/
|
||||
|
||||
DerivedPathMap<std::weak_ptr<CreateDerivationAndRealiseGoal>> outerDerivationGoals;
|
||||
|
||||
std::map<StorePath, std::weak_ptr<DerivationGoal>> derivationGoals;
|
||||
std::map<StorePath, std::weak_ptr<PathSubstitutionGoal>> substitutionGoals;
|
||||
std::map<DrvOutput, std::weak_ptr<DrvOutputSubstitutionGoal>> drvOutputSubstitutionGoals;
|
||||
|
|
@ -189,6 +208,9 @@ public:
|
|||
* @ref DerivationGoal "derivation goal"
|
||||
*/
|
||||
private:
|
||||
std::shared_ptr<CreateDerivationAndRealiseGoal> makeCreateDerivationAndRealiseGoal(
|
||||
ref<SingleDerivedPath> drvPath,
|
||||
const OutputsSpec & wantedOutputs, BuildMode buildMode = bmNormal);
|
||||
std::shared_ptr<DerivationGoal> makeDerivationGoalCommon(
|
||||
const StorePath & drvPath, const OutputsSpec & wantedOutputs,
|
||||
std::function<std::shared_ptr<DerivationGoal>()> mkDrvGoal);
|
||||
|
|
|
|||
|
|
@ -12,7 +12,7 @@
|
|||
|
||||
namespace nix {
|
||||
|
||||
std::optional<StorePath> DerivationOutput::path(const Store & store, std::string_view drvName, std::string_view outputName) const
|
||||
std::optional<StorePath> DerivationOutput::path(const Store & store, std::string_view drvName, OutputNameView outputName) const
|
||||
{
|
||||
return std::visit(overloaded {
|
||||
[](const DerivationOutput::InputAddressed & doi) -> std::optional<StorePath> {
|
||||
|
|
@ -36,7 +36,7 @@ std::optional<StorePath> DerivationOutput::path(const Store & store, std::string
|
|||
}
|
||||
|
||||
|
||||
StorePath DerivationOutput::CAFixed::path(const Store & store, std::string_view drvName, std::string_view outputName) const
|
||||
StorePath DerivationOutput::CAFixed::path(const Store & store, std::string_view drvName, OutputNameView outputName) const
|
||||
{
|
||||
return store.makeFixedOutputPathFromCA(
|
||||
outputPathName(drvName, outputName),
|
||||
|
|
@ -466,7 +466,7 @@ bool isDerivation(std::string_view fileName)
|
|||
}
|
||||
|
||||
|
||||
std::string outputPathName(std::string_view drvName, std::string_view outputName) {
|
||||
std::string outputPathName(std::string_view drvName, OutputNameView outputName) {
|
||||
std::string res { drvName };
|
||||
if (outputName != "out") {
|
||||
res += "-";
|
||||
|
|
@ -810,7 +810,7 @@ void writeDerivation(Sink & out, const Store & store, const BasicDerivation & dr
|
|||
}
|
||||
|
||||
|
||||
std::string hashPlaceholder(const std::string_view outputName)
|
||||
std::string hashPlaceholder(const OutputNameView outputName)
|
||||
{
|
||||
// FIXME: memoize?
|
||||
return "/" + hashString(htSHA256, concatStrings("nix-output:", outputName)).to_string(Base32, false);
|
||||
|
|
@ -963,7 +963,7 @@ void Derivation::checkInvariants(Store & store, const StorePath & drvPath) const
|
|||
const Hash impureOutputHash = hashString(htSHA256, "impure");
|
||||
|
||||
nlohmann::json DerivationOutput::toJSON(
|
||||
const Store & store, std::string_view drvName, std::string_view outputName) const
|
||||
const Store & store, std::string_view drvName, OutputNameView outputName) const
|
||||
{
|
||||
nlohmann::json res = nlohmann::json::object();
|
||||
std::visit(overloaded {
|
||||
|
|
@ -990,7 +990,7 @@ nlohmann::json DerivationOutput::toJSON(
|
|||
|
||||
|
||||
DerivationOutput DerivationOutput::fromJSON(
|
||||
const Store & store, std::string_view drvName, std::string_view outputName,
|
||||
const Store & store, std::string_view drvName, OutputNameView outputName,
|
||||
const nlohmann::json & _json,
|
||||
const ExperimentalFeatureSettings & xpSettings)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -55,7 +55,7 @@ struct DerivationOutput
|
|||
* @param drvName The name of the derivation this is an output of, without the `.drv`.
|
||||
* @param outputName The name of this output.
|
||||
*/
|
||||
StorePath path(const Store & store, std::string_view drvName, std::string_view outputName) const;
|
||||
StorePath path(const Store & store, std::string_view drvName, OutputNameView outputName) const;
|
||||
|
||||
GENERATE_CMP(CAFixed, me->ca);
|
||||
};
|
||||
|
|
@ -132,19 +132,19 @@ struct DerivationOutput
|
|||
* the safer interface provided by
|
||||
* BasicDerivation::outputsAndOptPaths
|
||||
*/
|
||||
std::optional<StorePath> path(const Store & store, std::string_view drvName, std::string_view outputName) const;
|
||||
std::optional<StorePath> path(const Store & store, std::string_view drvName, OutputNameView outputName) const;
|
||||
|
||||
nlohmann::json toJSON(
|
||||
const Store & store,
|
||||
std::string_view drvName,
|
||||
std::string_view outputName) const;
|
||||
OutputNameView outputName) const;
|
||||
/**
|
||||
* @param xpSettings Stop-gap to avoid globals during unit tests.
|
||||
*/
|
||||
static DerivationOutput fromJSON(
|
||||
const Store & store,
|
||||
std::string_view drvName,
|
||||
std::string_view outputName,
|
||||
OutputNameView outputName,
|
||||
const nlohmann::json & json,
|
||||
const ExperimentalFeatureSettings & xpSettings = experimentalFeatureSettings);
|
||||
};
|
||||
|
|
@ -405,7 +405,7 @@ bool isDerivation(std::string_view fileName);
|
|||
* This is usually <drv-name>-<output-name>, but is just <drv-name> when
|
||||
* the output name is "out".
|
||||
*/
|
||||
std::string outputPathName(std::string_view drvName, std::string_view outputName);
|
||||
std::string outputPathName(std::string_view drvName, OutputNameView outputName);
|
||||
|
||||
|
||||
/**
|
||||
|
|
@ -499,7 +499,7 @@ void writeDerivation(Sink & out, const Store & store, const BasicDerivation & dr
|
|||
* own outputs without needing to use the hash of a derivation in
|
||||
* itself, making the hash near-impossible to calculate.
|
||||
*/
|
||||
std::string hashPlaceholder(const std::string_view outputName);
|
||||
std::string hashPlaceholder(const OutputNameView outputName);
|
||||
|
||||
extern const Hash impureOutputHash;
|
||||
|
||||
|
|
|
|||
33
src/libstore/derived-path-map.cc
Normal file
33
src/libstore/derived-path-map.cc
Normal file
|
|
@ -0,0 +1,33 @@
|
|||
#include "derived-path-map.hh"
|
||||
|
||||
namespace nix {
|
||||
|
||||
template<typename V>
|
||||
typename DerivedPathMap<V>::ChildNode & DerivedPathMap<V>::ensureSlot(const SingleDerivedPath & k)
|
||||
{
|
||||
std::function<ChildNode &(const SingleDerivedPath & )> initIter;
|
||||
initIter = [&](const auto & k) -> auto & {
|
||||
return std::visit(overloaded {
|
||||
[&](const SingleDerivedPath::Opaque & bo) -> auto & {
|
||||
// will not overwrite if already there
|
||||
return map[bo.path];
|
||||
},
|
||||
[&](const SingleDerivedPath::Built & bfd) -> auto & {
|
||||
auto & n = initIter(*bfd.drvPath);
|
||||
return n.childMap[bfd.output];
|
||||
},
|
||||
}, k.raw());
|
||||
};
|
||||
return initIter(k);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
// instantiations
|
||||
|
||||
#include "create-derivation-and-realise-goal.hh"
|
||||
namespace nix {
|
||||
|
||||
template struct DerivedPathMap<std::weak_ptr<CreateDerivationAndRealiseGoal>>;
|
||||
|
||||
}
|
||||
73
src/libstore/derived-path-map.hh
Normal file
73
src/libstore/derived-path-map.hh
Normal file
|
|
@ -0,0 +1,73 @@
|
|||
#pragma once
|
||||
|
||||
#include "types.hh"
|
||||
#include "derived-path.hh"
|
||||
|
||||
namespace nix {
|
||||
|
||||
/**
|
||||
* A simple Trie, of sorts. Conceptually a map of `SingleDerivedPath` to
|
||||
* values.
|
||||
*
|
||||
* Concretely, an n-ary tree, as described below. A
|
||||
* `SingleDerivedPath::Opaque` maps to the value of an immediate child
|
||||
* of the root node. A `SingleDerivedPath::Built` maps to a deeper child
|
||||
* node: the `SingleDerivedPath::Built::drvPath` is first mapped to a a
|
||||
* child node (inductively), and then the
|
||||
* `SingleDerivedPath::Built::output` is used to look up that child's
|
||||
* child via its map. In this manner, every `SingleDerivedPath` is
|
||||
* mapped to a child node.
|
||||
*
|
||||
* @param V A type to instantiate for each output. It should probably
|
||||
* should be an "optional" type so not every interior node has to have a
|
||||
* value. For example, the scheduler uses
|
||||
* `DerivedPathMap<std::weak_ptr<CreateDerivationAndRealiseGoal>>` to
|
||||
* remember which goals correspond to which outputs. `* const Something`
|
||||
* or `std::optional<Something>` would also be good choices for
|
||||
* "optional" types.
|
||||
*/
|
||||
template<typename V>
|
||||
struct DerivedPathMap {
|
||||
/**
|
||||
* A child node (non-root node).
|
||||
*/
|
||||
struct ChildNode {
|
||||
/**
|
||||
* Value of this child node.
|
||||
*
|
||||
* @see DerivedPathMap for what `V` should be.
|
||||
*/
|
||||
V value;
|
||||
|
||||
/**
|
||||
* The map type for the root node.
|
||||
*/
|
||||
using Map = std::map<OutputName, ChildNode>;
|
||||
|
||||
/**
|
||||
* The map of the root node.
|
||||
*/
|
||||
Map childMap;
|
||||
};
|
||||
|
||||
/**
|
||||
* The map type for the root node.
|
||||
*/
|
||||
using Map = std::map<StorePath, ChildNode>;
|
||||
|
||||
/**
|
||||
* The map of root node.
|
||||
*/
|
||||
Map map;
|
||||
|
||||
/**
|
||||
* Find the node for `k`, creating it if needed.
|
||||
*
|
||||
* The node is referred to as a "slot" on the assumption that `V` is
|
||||
* some sort of optional type, so the given key can be set or unset
|
||||
* by changing this node.
|
||||
*/
|
||||
ChildNode & ensureSlot(const SingleDerivedPath & k);
|
||||
};
|
||||
|
||||
}
|
||||
|
|
@ -167,7 +167,7 @@ void drvRequireExperiment(
|
|||
|
||||
SingleDerivedPath::Built SingleDerivedPath::Built::parse(
|
||||
const Store & store, ref<SingleDerivedPath> drv,
|
||||
std::string_view output,
|
||||
OutputNameView output,
|
||||
const ExperimentalFeatureSettings & xpSettings)
|
||||
{
|
||||
drvRequireExperiment(*drv, xpSettings);
|
||||
|
|
@ -179,7 +179,7 @@ SingleDerivedPath::Built SingleDerivedPath::Built::parse(
|
|||
|
||||
DerivedPath::Built DerivedPath::Built::parse(
|
||||
const Store & store, ref<SingleDerivedPath> drv,
|
||||
std::string_view outputsS,
|
||||
OutputNameView outputsS,
|
||||
const ExperimentalFeatureSettings & xpSettings)
|
||||
{
|
||||
drvRequireExperiment(*drv, xpSettings);
|
||||
|
|
|
|||
|
|
@ -42,7 +42,7 @@ struct SingleDerivedPath;
|
|||
*/
|
||||
struct SingleDerivedPathBuilt {
|
||||
ref<SingleDerivedPath> drvPath;
|
||||
std::string output;
|
||||
OutputName output;
|
||||
|
||||
/**
|
||||
* Get the store path this is ultimately derived from (by realising
|
||||
|
|
@ -71,7 +71,7 @@ struct SingleDerivedPathBuilt {
|
|||
*/
|
||||
static SingleDerivedPathBuilt parse(
|
||||
const Store & store, ref<SingleDerivedPath> drvPath,
|
||||
std::string_view outputs,
|
||||
OutputNameView outputs,
|
||||
const ExperimentalFeatureSettings & xpSettings = experimentalFeatureSettings);
|
||||
nlohmann::json toJSON(Store & store) const;
|
||||
|
||||
|
|
|
|||
|
|
@ -11,7 +11,7 @@ std::string DownstreamPlaceholder::render() const
|
|||
|
||||
DownstreamPlaceholder DownstreamPlaceholder::unknownCaOutput(
|
||||
const StorePath & drvPath,
|
||||
std::string_view outputName,
|
||||
OutputNameView outputName,
|
||||
const ExperimentalFeatureSettings & xpSettings)
|
||||
{
|
||||
xpSettings.require(Xp::CaDerivations);
|
||||
|
|
@ -25,7 +25,7 @@ DownstreamPlaceholder DownstreamPlaceholder::unknownCaOutput(
|
|||
|
||||
DownstreamPlaceholder DownstreamPlaceholder::unknownDerivation(
|
||||
const DownstreamPlaceholder & placeholder,
|
||||
std::string_view outputName,
|
||||
OutputNameView outputName,
|
||||
const ExperimentalFeatureSettings & xpSettings)
|
||||
{
|
||||
xpSettings.require(Xp::DynamicDerivations);
|
||||
|
|
|
|||
|
|
@ -58,7 +58,7 @@ public:
|
|||
*/
|
||||
static DownstreamPlaceholder unknownCaOutput(
|
||||
const StorePath & drvPath,
|
||||
std::string_view outputName,
|
||||
OutputNameView outputName,
|
||||
const ExperimentalFeatureSettings & xpSettings = experimentalFeatureSettings);
|
||||
|
||||
/**
|
||||
|
|
@ -72,7 +72,7 @@ public:
|
|||
*/
|
||||
static DownstreamPlaceholder unknownDerivation(
|
||||
const DownstreamPlaceholder & drvPlaceholder,
|
||||
std::string_view outputName,
|
||||
OutputNameView outputName,
|
||||
const ExperimentalFeatureSettings & xpSettings = experimentalFeatureSettings);
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -399,8 +399,7 @@ StorePath resolveDerivedPath(Store & store, const SingleDerivedPath & req, Store
|
|||
store.printStorePath(drvPath), bfd.output);
|
||||
auto & optPath = outputPaths.at(bfd.output);
|
||||
if (!optPath)
|
||||
throw Error("'%s' does not yet map to a known concrete store path",
|
||||
bfd.to_string(store));
|
||||
throw MissingRealisation(bfd.drvPath->to_string(store), bfd.output);
|
||||
return *optPath;
|
||||
},
|
||||
}, req.raw());
|
||||
|
|
|
|||
|
|
@ -13,24 +13,36 @@
|
|||
|
||||
namespace nix {
|
||||
|
||||
/**
|
||||
* An (owned) output name. Just a type alias used to make code more
|
||||
* readible.
|
||||
*/
|
||||
typedef std::string OutputName;
|
||||
|
||||
/**
|
||||
* A borrowed output name. Just a type alias used to make code more
|
||||
* readible.
|
||||
*/
|
||||
typedef std::string_view OutputNameView;
|
||||
|
||||
struct OutputsSpec {
|
||||
/**
|
||||
* A non-empty set of outputs, specified by name
|
||||
*/
|
||||
struct Names : std::set<std::string> {
|
||||
using std::set<std::string>::set;
|
||||
struct Names : std::set<OutputName> {
|
||||
using std::set<OutputName>::set;
|
||||
|
||||
/* These need to be "inherited manually" */
|
||||
|
||||
Names(const std::set<std::string> & s)
|
||||
: std::set<std::string>(s)
|
||||
Names(const std::set<OutputName> & s)
|
||||
: std::set<OutputName>(s)
|
||||
{ assert(!empty()); }
|
||||
|
||||
/**
|
||||
* Needs to be "inherited manually"
|
||||
*/
|
||||
Names(std::set<std::string> && s)
|
||||
: std::set<std::string>(s)
|
||||
Names(std::set<OutputName> && s)
|
||||
: std::set<OutputName>(s)
|
||||
{ assert(!empty()); }
|
||||
|
||||
/* This set should always be non-empty, so we delete this
|
||||
|
|
@ -57,7 +69,7 @@ struct OutputsSpec {
|
|||
*/
|
||||
OutputsSpec() = delete;
|
||||
|
||||
bool contains(const std::string & output) const;
|
||||
bool contains(const OutputName & output) const;
|
||||
|
||||
/**
|
||||
* Create a new OutputsSpec which is the union of this and that.
|
||||
|
|
|
|||
|
|
@ -34,7 +34,7 @@ struct DrvOutput {
|
|||
/**
|
||||
* The name of the output.
|
||||
*/
|
||||
std::string outputName;
|
||||
OutputName outputName;
|
||||
|
||||
std::string to_string() const;
|
||||
|
||||
|
|
@ -84,7 +84,7 @@ struct Realisation {
|
|||
* Since these are the outputs of a single derivation, we know the
|
||||
* output names are unique so we can use them as the map key.
|
||||
*/
|
||||
typedef std::map<std::string, Realisation> SingleDrvOutputs;
|
||||
typedef std::map<OutputName, Realisation> SingleDrvOutputs;
|
||||
|
||||
/**
|
||||
* Collection type for multiple derivations' outputs' `Realisation`s.
|
||||
|
|
@ -146,7 +146,7 @@ public:
|
|||
MissingRealisation(DrvOutput & outputId)
|
||||
: MissingRealisation(outputId.outputName, outputId.strHash())
|
||||
{}
|
||||
MissingRealisation(std::string_view drv, std::string outputName)
|
||||
MissingRealisation(std::string_view drv, OutputName outputName)
|
||||
: Error( "cannot operate on output '%s' of the "
|
||||
"unbuilt derivation '%s'",
|
||||
outputName,
|
||||
|
|
|
|||
|
|
@ -14,6 +14,11 @@ void BaseError::addTrace(std::shared_ptr<AbstractPos> && e, hintformat hint, boo
|
|||
err.traces.push_front(Trace { .pos = std::move(e), .hint = hint, .frame = frame });
|
||||
}
|
||||
|
||||
void throwExceptionSelfCheck(){
|
||||
// This is meant to be caught in initLibUtil()
|
||||
throw SysError("C++ exception handling is broken. This would appear to be a problem with the way Nix was compiled and/or linked and/or loaded.");
|
||||
}
|
||||
|
||||
// c++ std::exception descendants must have a 'const char* what()' function.
|
||||
// This stringifies the error and caches it for use by what(), or similarly by msg().
|
||||
const std::string & BaseError::calcWhat() const
|
||||
|
|
|
|||
|
|
@ -214,4 +214,8 @@ public:
|
|||
}
|
||||
};
|
||||
|
||||
/** Throw an exception for the purpose of checking that exception handling works; see 'initLibUtil()'.
|
||||
*/
|
||||
void throwExceptionSelfCheck();
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -48,6 +48,23 @@ extern char * * environ __attribute__((weak));
|
|||
namespace nix {
|
||||
|
||||
void initLibUtil() {
|
||||
// Check that exception handling works. Exception handling has been observed
|
||||
// not to work on darwin when the linker flags aren't quite right.
|
||||
// In this case we don't want to expose the user to some unrelated uncaught
|
||||
// exception, but rather tell them exactly that exception handling is
|
||||
// broken.
|
||||
// When exception handling fails, the message tends to be printed by the
|
||||
// C++ runtime, followed by an abort.
|
||||
// For example on macOS we might see an error such as
|
||||
// libc++abi: terminating with uncaught exception of type nix::SysError: error: C++ exception handling is broken. This would appear to be a problem with the way Nix was compiled and/or linked and/or loaded.
|
||||
bool caught = false;
|
||||
try {
|
||||
throwExceptionSelfCheck();
|
||||
} catch (nix::Error _e) {
|
||||
caught = true;
|
||||
}
|
||||
// This is not actually the main point of this check, but let's make sure anyway:
|
||||
assert(caught);
|
||||
}
|
||||
|
||||
std::optional<std::string> getEnv(const std::string & key)
|
||||
|
|
|
|||
|
|
@ -500,6 +500,45 @@ static RegisterLegacyCommand r_nix_daemon("nix-daemon", main_nix_daemon);
|
|||
|
||||
struct CmdDaemon : StoreCommand
|
||||
{
|
||||
bool stdio = false;
|
||||
std::optional<TrustedFlag> isTrustedOpt = std::nullopt;
|
||||
|
||||
CmdDaemon()
|
||||
{
|
||||
addFlag({
|
||||
.longName = "stdio",
|
||||
.description = "Attach to standard I/O, instead of trying to bind to a UNIX socket.",
|
||||
.handler = {&stdio, true},
|
||||
});
|
||||
|
||||
addFlag({
|
||||
.longName = "force-trusted",
|
||||
.description = "Force the daemon to trust connecting clients.",
|
||||
.handler = {[&]() {
|
||||
isTrustedOpt = Trusted;
|
||||
}},
|
||||
.experimentalFeature = Xp::DaemonTrustOverride,
|
||||
});
|
||||
|
||||
addFlag({
|
||||
.longName = "force-untrusted",
|
||||
.description = "Force the daemon to not trust connecting clients. The connection will be processed by the receiving daemon before forwarding commands.",
|
||||
.handler = {[&]() {
|
||||
isTrustedOpt = NotTrusted;
|
||||
}},
|
||||
.experimentalFeature = Xp::DaemonTrustOverride,
|
||||
});
|
||||
|
||||
addFlag({
|
||||
.longName = "default-trust",
|
||||
.description = "Use Nix's default trust.",
|
||||
.handler = {[&]() {
|
||||
isTrustedOpt = std::nullopt;
|
||||
}},
|
||||
.experimentalFeature = Xp::DaemonTrustOverride,
|
||||
});
|
||||
}
|
||||
|
||||
std::string description() override
|
||||
{
|
||||
return "daemon to perform store operations on behalf of non-root clients";
|
||||
|
|
@ -516,7 +555,7 @@ struct CmdDaemon : StoreCommand
|
|||
|
||||
void run(ref<Store> store) override
|
||||
{
|
||||
runDaemon(false, std::nullopt);
|
||||
runDaemon(stdio, isTrustedOpt);
|
||||
}
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -1,20 +1,44 @@
|
|||
R""(
|
||||
|
||||
# Example
|
||||
# Examples
|
||||
|
||||
* Run the daemon in the foreground:
|
||||
* Run the daemon:
|
||||
|
||||
```console
|
||||
# nix daemon
|
||||
```
|
||||
|
||||
* Run the daemon and listen on standard I/O instead of binding to a UNIX socket:
|
||||
|
||||
```console
|
||||
# nix daemon --stdio
|
||||
```
|
||||
|
||||
* Run the daemon and force all connections to be trusted:
|
||||
|
||||
```console
|
||||
# nix daemon --force-trusted
|
||||
```
|
||||
|
||||
* Run the daemon and force all connections to be untrusted:
|
||||
|
||||
```console
|
||||
# nix daemon --force-untrusted
|
||||
```
|
||||
|
||||
* Run the daemon, listen on standard I/O, and force all connections to use Nix's default trust:
|
||||
|
||||
```console
|
||||
# nix daemon --stdio --default-trust
|
||||
```
|
||||
|
||||
# Description
|
||||
|
||||
This command runs the Nix daemon, which is a required component in
|
||||
multi-user Nix installations. It runs build tasks and other
|
||||
operations on the Nix store on behalf of non-root users. Usually you
|
||||
don't run the daemon directly; instead it's managed by a service
|
||||
management framework such as `systemd`.
|
||||
management framework such as `systemd` on Linux, or `launchctl` on Darwin.
|
||||
|
||||
Note that this daemon does not fork into the background.
|
||||
|
||||
|
|
|
|||
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