forked from lix-project/lix
f0baa5c128
Example: # nix build -L --extra-experimental-features cgroups --impure --expr 'with import <nixpkgs> {}; runCommand "foo" {} "dd if=/dev/urandom bs=1M count=1024 | md5sum; mkdir $out"' --json [ { "cpuSystem": 1.911431, "cpuUser": 1.214249, "drvPath": "/nix/store/xzdqz67xba18hljhycp0hwfigzrs2z69-foo.drv", "outputs": { "out": "/nix/store/rh9mc9l2gkpq8kn2sgzndr6ll7ffjh6l-foo" }, "startTime": 1669024076, "stopTime": 1669024079 } ]
159 lines
5.2 KiB
C++
159 lines
5.2 KiB
C++
#include "eval.hh"
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#include "command.hh"
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#include "common-args.hh"
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#include "shared.hh"
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#include "store-api.hh"
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#include "local-fs-store.hh"
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#include "progress-bar.hh"
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#include <nlohmann/json.hpp>
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using namespace nix;
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nlohmann::json derivedPathsToJSON(const DerivedPaths & paths, ref<Store> store)
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{
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auto res = nlohmann::json::array();
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for (auto & t : paths) {
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std::visit([&res, store](const auto & t) {
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res.push_back(t.toJSON(store));
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}, t.raw());
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}
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return res;
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}
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nlohmann::json builtPathsWithResultToJSON(const std::vector<BuiltPathWithResult> & buildables, ref<Store> store)
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{
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auto res = nlohmann::json::array();
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for (auto & b : buildables) {
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std::visit([&](const auto & t) {
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auto j = t.toJSON(store);
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if (b.result) {
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j["startTime"] = b.result->startTime;
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j["stopTime"] = b.result->stopTime;
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if (b.result->cpuUser)
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j["cpuUser"] = ((double) b.result->cpuUser->count()) / 1000000;
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if (b.result->cpuSystem)
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j["cpuSystem"] = ((double) b.result->cpuSystem->count()) / 1000000;
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}
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res.push_back(j);
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}, b.path.raw());
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}
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return res;
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}
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struct CmdBuild : InstallablesCommand, MixDryRun, MixJSON, MixProfile
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{
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Path outLink = "result";
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bool printOutputPaths = false;
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BuildMode buildMode = bmNormal;
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CmdBuild()
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{
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addFlag({
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.longName = "out-link",
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.shortName = 'o',
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.description = "Use *path* as prefix for the symlinks to the build results. It defaults to `result`.",
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.labels = {"path"},
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.handler = {&outLink},
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.completer = completePath
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});
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addFlag({
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.longName = "no-link",
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.description = "Do not create symlinks to the build results.",
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.handler = {&outLink, Path("")},
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});
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addFlag({
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.longName = "print-out-paths",
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.description = "Print the resulting output paths",
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.handler = {&printOutputPaths, true},
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});
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addFlag({
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.longName = "rebuild",
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.description = "Rebuild an already built package and compare the result to the existing store paths.",
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.handler = {&buildMode, bmCheck},
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});
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}
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std::string description() override
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{
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return "build a derivation or fetch a store path";
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}
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std::string doc() override
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{
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return
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#include "build.md"
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;
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}
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void run(ref<Store> store) override
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{
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if (dryRun) {
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std::vector<DerivedPath> pathsToBuild;
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for (auto & i : installables) {
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auto b = i->toDerivedPaths();
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pathsToBuild.insert(pathsToBuild.end(), b.begin(), b.end());
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}
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printMissing(store, pathsToBuild, lvlError);
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if (json)
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logger->cout("%s", derivedPathsToJSON(pathsToBuild, store).dump());
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return;
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}
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auto buildables = Installable::build(
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getEvalStore(), store,
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Realise::Outputs,
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installables, buildMode);
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if (json) logger->cout("%s", builtPathsWithResultToJSON(buildables, store).dump());
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if (outLink != "")
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if (auto store2 = store.dynamic_pointer_cast<LocalFSStore>())
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for (const auto & [_i, buildable] : enumerate(buildables)) {
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auto i = _i;
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std::visit(overloaded {
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[&](const BuiltPath::Opaque & bo) {
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std::string symlink = outLink;
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if (i) symlink += fmt("-%d", i);
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store2->addPermRoot(bo.path, absPath(symlink));
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},
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[&](const BuiltPath::Built & bfd) {
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for (auto & output : bfd.outputs) {
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std::string symlink = outLink;
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if (i) symlink += fmt("-%d", i);
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if (output.first != "out") symlink += fmt("-%s", output.first);
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store2->addPermRoot(output.second, absPath(symlink));
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}
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},
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}, buildable.path.raw());
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}
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if (printOutputPaths) {
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stopProgressBar();
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for (auto & buildable : buildables) {
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std::visit(overloaded {
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[&](const BuiltPath::Opaque & bo) {
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std::cout << store->printStorePath(bo.path) << std::endl;
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},
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[&](const BuiltPath::Built & bfd) {
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for (auto & output : bfd.outputs) {
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std::cout << store->printStorePath(output.second) << std::endl;
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}
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},
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}, buildable.path.raw());
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}
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}
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BuiltPaths buildables2;
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for (auto & b : buildables)
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buildables2.push_back(b.path);
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updateProfile(buildables2);
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}
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};
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static auto rCmdBuild = registerCommand<CmdBuild>("build");
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