forked from lix-project/nix-eval-jobs
src/nix-eval-jobs.cc: Reformat with clang-format
This commit is contained in:
parent
8b8f456765
commit
fec10f2cfc
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@ -35,8 +35,7 @@ typedef enum { evalAuto, evalImpure, evalPure } pureEval;
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// Safe to ignore - the args will be static.
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#pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
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#pragma clang diagnostic ignored "-Wnon-virtual-dtor"
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struct MyArgs : MixEvalArgs, MixCommonArgs
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{
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struct MyArgs : MixEvalArgs, MixCommonArgs {
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Path releaseExpr;
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Path gcRootsDir;
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bool flake = false;
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@ -46,18 +45,18 @@ struct MyArgs : MixEvalArgs, MixCommonArgs
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size_t maxMemorySize = 4096;
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pureEval evalMode = evalAuto;
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MyArgs() : MixCommonArgs("nix-eval-jobs")
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{
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MyArgs() : MixCommonArgs("nix-eval-jobs") {
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addFlag({
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.longName = "help",
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.description = "show usage information",
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.handler = {[&]() {
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printf("USAGE: nix-eval-jobs [options] expr\n\n");
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for (const auto & [name, flag] : longFlags) {
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for (const auto &[name, flag] : longFlags) {
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if (hiddenCategories.count(flag->category)) {
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continue;
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}
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printf(" --%-20s %s\n", name.c_str(), flag->description.c_str());
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printf(" --%-20s %s\n", name.c_str(),
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flag->description.c_str());
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}
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::exit(0);
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}},
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@ -66,53 +65,38 @@ struct MyArgs : MixEvalArgs, MixCommonArgs
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addFlag({
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.longName = "impure",
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.description = "set evaluation mode",
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.handler = {[&]() {
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evalMode = evalImpure;
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}},
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.handler = {[&]() { evalMode = evalImpure; }},
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});
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addFlag({
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.longName = "gc-roots-dir",
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.description = "garbage collector roots directory",
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.labels = {"path"},
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.handler = {&gcRootsDir}
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});
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addFlag({.longName = "gc-roots-dir",
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.description = "garbage collector roots directory",
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.labels = {"path"},
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.handler = {&gcRootsDir}});
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addFlag({
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.longName = "workers",
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.description = "number of evaluate workers",
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.labels = {"workers"},
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.handler = {[=](std::string s) {
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nrWorkers = std::stoi(s);
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}}
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});
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addFlag(
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{.longName = "workers",
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.description = "number of evaluate workers",
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.labels = {"workers"},
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.handler = {[=](std::string s) { nrWorkers = std::stoi(s); }}});
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addFlag({
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.longName = "max-memory-size",
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.description = "maximum evaluation memory size",
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.labels = {"size"},
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.handler = {[=](std::string s) {
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maxMemorySize = std::stoi(s);
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}}
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});
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addFlag({.longName = "max-memory-size",
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.description = "maximum evaluation memory size",
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.labels = {"size"},
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.handler = {
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[=](std::string s) { maxMemorySize = std::stoi(s); }}});
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addFlag({
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.longName = "flake",
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.description = "build a flake",
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.handler = {&flake, true}
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});
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addFlag({.longName = "flake",
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.description = "build a flake",
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.handler = {&flake, true}});
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addFlag({
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.longName = "meta",
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.description = "include derivation meta field in output",
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.handler = {&meta, true}
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});
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addFlag({.longName = "meta",
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.description = "include derivation meta field in output",
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.handler = {&meta, true}});
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addFlag({
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.longName = "show-trace",
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.description = "print out a stack trace in case of evaluation errors",
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.handler = {&showTrace, true}
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});
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addFlag({.longName = "show-trace",
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.description =
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"print out a stack trace in case of evaluation errors",
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.handler = {&showTrace, true}});
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expectArg("expr", &releaseExpr);
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}
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@ -122,7 +106,7 @@ struct MyArgs : MixEvalArgs, MixCommonArgs
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static MyArgs myArgs;
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static Value* releaseExprTopLevelValue(EvalState & state, Bindings & autoArgs) {
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static Value *releaseExprTopLevelValue(EvalState &state, Bindings &autoArgs) {
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Value vTop;
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state.evalFile(lookupFileArg(state, myArgs.releaseExpr), vTop);
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@ -134,19 +118,20 @@ static Value* releaseExprTopLevelValue(EvalState & state, Bindings & autoArgs) {
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return vRoot;
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}
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static Value* flakeTopLevelValue(EvalState & state, Bindings & autoArgs) {
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static Value *flakeTopLevelValue(EvalState &state, Bindings &autoArgs) {
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using namespace flake;
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auto [flakeRef, fragment] = parseFlakeRefWithFragment(myArgs.releaseExpr, absPath("."));
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auto [flakeRef, fragment] =
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parseFlakeRefWithFragment(myArgs.releaseExpr, absPath("."));
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auto vFlake = state.allocValue();
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auto lockedFlake = lockFlake(state, flakeRef,
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LockFlags {
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.updateLockFile = false,
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.useRegistries = false,
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.allowMutable = false,
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});
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LockFlags{
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.updateLockFile = false,
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.useRegistries = false,
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.allowMutable = false,
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});
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callFlake(state, lockedFlake, *vFlake);
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@ -155,7 +140,7 @@ static Value* flakeTopLevelValue(EvalState & state, Bindings & autoArgs) {
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auto vTop = *vOutputs;
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if (fragment.length() > 0) {
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Bindings & bindings(*state.allocBindings(0));
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Bindings &bindings(*state.allocBindings(0));
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auto [nTop, pos] = findAlongAttrPath(state, fragment, bindings, vTop);
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if (!nTop)
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throw Error("error: attribute '%s' missing", nTop);
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@ -168,10 +153,9 @@ static Value* flakeTopLevelValue(EvalState & state, Bindings & autoArgs) {
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return vRoot;
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}
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Value * topLevelValue(EvalState & state, Bindings & autoArgs) {
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return myArgs.flake
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? flakeTopLevelValue(state, autoArgs)
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: releaseExprTopLevelValue(state, autoArgs);
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Value *topLevelValue(EvalState &state, Bindings &autoArgs) {
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return myArgs.flake ? flakeTopLevelValue(state, autoArgs)
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: releaseExprTopLevelValue(state, autoArgs);
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}
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/* The fields of a derivation that are printed in json form */
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@ -182,7 +166,7 @@ struct Drv {
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std::map<std::string, std::string> outputs;
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std::optional<nlohmann::json> meta;
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Drv (EvalState & state, DrvInfo & drvInfo) {
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Drv(EvalState &state, DrvInfo &drvInfo) {
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if (drvInfo.querySystem() == "unknown")
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throw EvalError("derivation must have a 'system' attribute");
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@ -191,12 +175,11 @@ struct Drv {
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for (auto out : drvInfo.queryOutputs(true)) {
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if (out.second)
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outputs[out.first] = localStore->printStorePath(*out.second);
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}
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if (myArgs.meta) {
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nlohmann::json meta_;
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for (auto & name : drvInfo.queryMetaNames()) {
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for (auto &name : drvInfo.queryMetaNames()) {
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PathSet context;
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std::stringstream ss;
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@ -220,17 +203,16 @@ struct Drv {
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}
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};
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static void to_json(nlohmann::json & json, const Drv & drv) {
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static void to_json(nlohmann::json &json, const Drv &drv) {
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json = nlohmann::json{
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{ "name", drv.name },
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{ "system", drv.system },
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{ "drvPath", drv.drvPath },
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{ "outputs", drv.outputs },
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{"name", drv.name},
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{"system", drv.system},
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{"drvPath", drv.drvPath},
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{"outputs", drv.outputs},
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};
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if (drv.meta.has_value())
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json["meta"] = drv.meta.value();
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}
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std::string attrPathJoin(json input) {
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@ -244,12 +226,8 @@ std::string attrPathJoin(json input) {
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});
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}
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static void worker(
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EvalState & state,
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Bindings & autoArgs,
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AutoCloseFD & to,
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AutoCloseFD & from)
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{
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static void worker(EvalState &state, Bindings &autoArgs, AutoCloseFD &to,
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AutoCloseFD &from) {
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auto vRoot = topLevelValue(state, autoArgs);
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while (true) {
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@ -257,17 +235,20 @@ static void worker(
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writeLine(to.get(), "next");
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auto s = readLine(from.get());
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if (s == "exit") break;
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if (!hasPrefix(s, "do ")) abort();
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if (s == "exit")
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break;
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if (!hasPrefix(s, "do "))
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abort();
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auto path = json::parse(s.substr(3));
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auto attrPathS = attrPathJoin(path);
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debug("worker process %d at '%s'", getpid(), path);
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/* Evaluate it and send info back to the collector. */
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json reply = json{ {"attr", attrPathS }, {"attrPath", path} };
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json reply = json{{"attr", attrPathS}, {"attrPath", path}};
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try {
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auto vTmp = findAlongAttrPath(state, attrPathS, autoArgs, *vRoot).first;
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auto vTmp =
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findAlongAttrPath(state, attrPathS, autoArgs, *vRoot).first;
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auto v = state.allocValue();
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state.autoCallFunction(autoArgs, *vTmp, *v);
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@ -281,42 +262,49 @@ static void worker(
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registers roots for jobs that we may have already
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done. */
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if (myArgs.gcRootsDir != "") {
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Path root = myArgs.gcRootsDir + "/" + std::string(baseNameOf(drv.drvPath));
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Path root = myArgs.gcRootsDir + "/" +
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std::string(baseNameOf(drv.drvPath));
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if (!pathExists(root)) {
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auto localStore = state.store.dynamic_pointer_cast<LocalFSStore>();
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auto storePath = localStore->parseStorePath(drv.drvPath);
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auto localStore =
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state.store.dynamic_pointer_cast<LocalFSStore>();
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auto storePath =
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localStore->parseStorePath(drv.drvPath);
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localStore->addPermRoot(storePath, root);
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}
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}
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}
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else if (v->type() == nAttrs)
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{
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else if (v->type() == nAttrs) {
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auto attrs = nlohmann::json::array();
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bool recurse = path.size() == 0; // Dont require `recurseForDerivations = true;` for top-level attrset
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bool recurse =
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path.size() == 0; // Dont require `recurseForDerivations =
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// true;` for top-level attrset
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for (auto & i : v->attrs->lexicographicOrder()) {
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for (auto &i : v->attrs->lexicographicOrder()) {
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std::string name(i->name);
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attrs.push_back(name);
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if (name == "recurseForDerivations") {
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auto attrv = v->attrs->get(state.sRecurseForDerivations);
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recurse = state.forceBool(*attrv->value, *attrv->pos);
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auto attrv =
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v->attrs->get(state.sRecurseForDerivations);
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recurse = state.forceBool(*attrv->value, *attrv->pos);
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}
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}
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if (recurse)
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reply["attrs"] = std::move(attrs);
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reply["attrs"] = std::move(attrs);
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else
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reply["attrs"] = nlohmann::json::array();
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reply["attrs"] = nlohmann::json::array();
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}
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else if (v->type() == nNull)
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;
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else throw TypeError("attribute '%s' is %s, which is not supported", path, showType(*v));
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else
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throw TypeError("attribute '%s' is %s, which is not supported",
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path, showType(*v));
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} catch (EvalError & e) {
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} catch (EvalError &e) {
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auto err = e.info();
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std::ostringstream oss;
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@ -337,13 +325,15 @@ static void worker(
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start a new process. */
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struct rusage r;
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getrusage(RUSAGE_SELF, &r);
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if ((size_t) r.ru_maxrss > myArgs.maxMemorySize * 1024) break;
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if ((size_t)r.ru_maxrss > myArgs.maxMemorySize * 1024)
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break;
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}
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writeLine(to.get(), "restart");
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}
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typedef std::function<void(EvalState & state, Bindings & autoArgs, AutoCloseFD & to, AutoCloseFD & from)>
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typedef std::function<void(EvalState &state, Bindings &autoArgs,
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AutoCloseFD &to, AutoCloseFD &from)>
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Processor;
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/* Auto-cleanup of fork's process and fds. */
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@ -351,22 +341,21 @@ struct Proc {
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AutoCloseFD to, from;
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Pid pid;
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Proc(const Processor & proc) {
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Proc(const Processor &proc) {
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Pipe toPipe, fromPipe;
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toPipe.create();
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fromPipe.create();
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auto p = startProcess(
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[&,
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to{std::make_shared<AutoCloseFD>(std::move(fromPipe.writeSide))},
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from{std::make_shared<AutoCloseFD>(std::move(toPipe.readSide))}
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]()
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{
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from{
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std::make_shared<AutoCloseFD>(std::move(toPipe.readSide))}]() {
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debug("created worker process %d", getpid());
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try {
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EvalState state(myArgs.searchPath, openStore());
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Bindings & autoArgs = *myArgs.getAutoArgs(state);
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Bindings &autoArgs = *myArgs.getAutoArgs(state);
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proc(state, autoArgs, *to, *from);
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} catch (Error & e) {
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} catch (Error &e) {
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nlohmann::json err;
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auto msg = e.msg();
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err["error"] = filterANSIEscapes(msg, true);
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@ -377,33 +366,32 @@ struct Proc {
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writeLine(to->get(), "restart");
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}
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},
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ProcessOptions { .allowVfork = false });
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ProcessOptions{.allowVfork = false});
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to = std::move(toPipe.writeSide);
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from = std::move(fromPipe.readSide);
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pid = p;
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}
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~Proc() { }
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~Proc() {}
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};
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struct State
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{
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std::set<json> todo = json::array({ json::array() });
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std::set<json> active;
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std::exception_ptr exc;
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struct State {
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std::set<json> todo = json::array({json::array()});
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std::set<json> active;
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std::exception_ptr exc;
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};
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std::function<void()> collector(Sync<State> & state_, std::condition_variable & wakeup) {
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std::function<void()> collector(Sync<State> &state_,
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std::condition_variable &wakeup) {
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return [&]() {
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try {
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std::optional<std::unique_ptr<Proc>> proc_;
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while (true) {
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auto proc = proc_.has_value()
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? std::move(proc_.value())
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: std::make_unique<Proc>(worker);
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auto proc = proc_.has_value() ? std::move(proc_.value())
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: std::make_unique<Proc>(worker);
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/* Check whether the existing worker process is still there. */
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auto s = readLine(proc->from.get());
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@ -412,7 +400,7 @@ std::function<void()> collector(Sync<State> & state_, std::condition_variable &
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continue;
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} else if (s != "next") {
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auto json = json::parse(s);
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throw Error("worker error: %s", (std::string) json["error"]);
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throw Error("worker error: %s", (std::string)json["error"]);
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}
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/* Wait for a job name to become available. */
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@ -421,7 +409,8 @@ std::function<void()> collector(Sync<State> & state_, std::condition_variable &
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while (true) {
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checkInterrupt();
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auto state(state_.lock());
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if ((state->todo.empty() && state->active.empty()) || state->exc) {
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if ((state->todo.empty() && state->active.empty()) ||
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state->exc) {
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writeLine(proc->to.get(), "exit");
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return;
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}
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@ -444,10 +433,10 @@ std::function<void()> collector(Sync<State> & state_, std::condition_variable &
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/* Handle the response. */
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std::vector<json> newAttrs;
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if (response.find("attrs") != response.end()) {
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for (auto & i : response["attrs"]) {
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json newAttr = json(response["attrPath"]);
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newAttr.emplace_back(i);
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newAttrs.push_back(newAttr);
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for (auto &i : response["attrs"]) {
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json newAttr = json(response["attrPath"]);
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newAttr.emplace_back(i);
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newAttrs.push_back(newAttr);
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}
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} else {
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auto state(state_.lock());
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@ -474,8 +463,7 @@ std::function<void()> collector(Sync<State> & state_, std::condition_variable &
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};
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}
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int main(int argc, char * * argv)
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{
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int main(int argc, char **argv) {
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/* Prevent undeclared dependencies in the evaluation via
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$NIX_PATH. */
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unsetenv("NIX_PATH");
|
||||
|
|
@ -489,7 +477,8 @@ int main(int argc, char * * argv)
|
|||
|
||||
myArgs.parseCmdline(argvToStrings(argc, argv));
|
||||
|
||||
/* FIXME: The build hook in conjunction with import-from-derivation is causing "unexpected EOF" during eval */
|
||||
/* FIXME: The build hook in conjunction with import-from-derivation is
|
||||
* causing "unexpected EOF" during eval */
|
||||
settings.builders = "";
|
||||
|
||||
/* Prevent access to paths outside of the Nix search path and
|
||||
|
|
@ -498,11 +487,15 @@ int main(int argc, char * * argv)
|
|||
|
||||
/* When building a flake, use pure evaluation (no access to
|
||||
'getEnv', 'currentSystem' etc. */
|
||||
evalSettings.pureEval = myArgs.evalMode == evalAuto ? myArgs.flake : myArgs.evalMode == evalPure;
|
||||
evalSettings.pureEval = myArgs.evalMode == evalAuto
|
||||
? myArgs.flake
|
||||
: myArgs.evalMode == evalPure;
|
||||
|
||||
if (myArgs.releaseExpr == "") throw UsageError("no expression specified");
|
||||
if (myArgs.releaseExpr == "")
|
||||
throw UsageError("no expression specified");
|
||||
|
||||
if (myArgs.gcRootsDir == "") printMsg(lvlError, "warning: `--gc-roots-dir' not specified");
|
||||
if (myArgs.gcRootsDir == "")
|
||||
printMsg(lvlError, "warning: `--gc-roots-dir' not specified");
|
||||
|
||||
if (myArgs.showTrace) {
|
||||
loggerSettings.showTrace.assign(true);
|
||||
|
|
@ -516,13 +509,12 @@ int main(int argc, char * * argv)
|
|||
for (size_t i = 0; i < myArgs.nrWorkers; i++)
|
||||
threads.emplace_back(std::thread(collector(state_, wakeup)));
|
||||
|
||||
for (auto & thread : threads)
|
||||
for (auto &thread : threads)
|
||||
thread.join();
|
||||
|
||||
auto state(state_.lock());
|
||||
|
||||
if (state->exc)
|
||||
std::rethrow_exception(state->exc);
|
||||
|
||||
});
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue