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nix build --json: Include build statistics

Browse source 
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
    }
  ]
This commit is contained in:
Eelco Dolstra 2022-11-21 10:49:01 +01:00
parent f538ee4342
commit 300753d594
7 changed files with 77 additions and 46 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

29
src/libcmd/installables.cc
View file

@ -840,20 +840,20 @@ std::shared_ptr<Installable> SourceExprCommand::parseInstallable(
return installables.front();
}
BuiltPaths Installable::build(
std::vector<BuiltPathWithResult> Installable::build(
ref<Store> evalStore,
ref<Store> store,
Realise mode,
const std::vector<std::shared_ptr<Installable>> & installables,
BuildMode bMode)
{
BuiltPaths res;
for (auto & [_, builtPath] : build2(evalStore, store, mode, installables, bMode))
res.push_back(builtPath);
std::vector<BuiltPathWithResult> res;
for (auto & [_, builtPathWithResult] : build2(evalStore, store, mode, installables, bMode))
res.push_back(builtPathWithResult);
return res;
}
std::vector<std::pair<std::shared_ptr<Installable>, BuiltPath>> Installable::build2(
std::vector<std::pair<std::shared_ptr<Installable>, BuiltPathWithResult>> Installable::build2(
ref<Store> evalStore,
ref<Store> store,
Realise mode,
@ -873,7 +873,7 @@ std::vector<std::pair<std::shared_ptr<Installable>, BuiltPath>> Installable::bui
}
}
std::vector<std::pair<std::shared_ptr<Installable>, BuiltPath>> res;
std::vector<std::pair<std::shared_ptr<Installable>, BuiltPathWithResult>> res;
switch (mode) {
@ -914,10 +914,10 @@ std::vector<std::pair<std::shared_ptr<Installable>, BuiltPath>> Installable::bui
output, *drvOutput->second);
}
}
res.push_back({installable, BuiltPath::Built { bfd.drvPath, outputs }});
res.push_back({installable, {.path = BuiltPath::Built { bfd.drvPath, outputs }}});
},
[&](const DerivedPath::Opaque & bo) {
res.push_back({installable, BuiltPath::Opaque { bo.path }});
res.push_back({installable, {.path = BuiltPath::Opaque { bo.path }}});
},
}, path.raw());
}
@ -939,10 +939,10 @@ std::vector<std::pair<std::shared_ptr<Installable>, BuiltPath>> Installable::bui
std::map<std::string, StorePath> outputs;
for (auto & path : buildResult.builtOutputs)
outputs.emplace(path.first.outputName, path.second.outPath);
res.push_back({installable, BuiltPath::Built { bfd.drvPath, outputs }});
res.push_back({installable, {.path = BuiltPath::Built { bfd.drvPath, outputs }, .result = buildResult}});
},
[&](const DerivedPath::Opaque & bo) {
res.push_back({installable, BuiltPath::Opaque { bo.path }});
res.push_back({installable, {.path = BuiltPath::Opaque { bo.path }, .result = buildResult}});
},
}, buildResult.path.raw());
}
@ -965,9 +965,12 @@ BuiltPaths Installable::toBuiltPaths(
OperateOn operateOn,
const std::vector<std::shared_ptr<Installable>> & installables)
{
if (operateOn == OperateOn::Output)
return Installable::build(evalStore, store, mode, installables);
else {
if (operateOn == OperateOn::Output) {
BuiltPaths res;
for (auto & p : Installable::build(evalStore, store, mode, installables))
res.push_back(p.path);
return res;
} else {
if (mode == Realise::Nothing)
settings.readOnlyMode = true;

11
src/libcmd/installables.hh
View file

@ -7,6 +7,7 @@
#include "eval.hh"
#include "store-api.hh"
#include "flake/flake.hh"
#include "build-result.hh"
#include <optional>
@ -51,6 +52,12 @@ enum class OperateOn {
Derivation
};
struct BuiltPathWithResult
{
BuiltPath path;
std::optional<BuildResult> result;
};
struct Installable
{
virtual ~Installable() { }
@ -91,14 +98,14 @@ struct Installable
return FlakeRef::fromAttrs({{"type","indirect"}, {"id", "nixpkgs"}});
}
static BuiltPaths build(
static std::vector<BuiltPathWithResult> build(
ref<Store> evalStore,
ref<Store> store,
Realise mode,
const std::vector<std::shared_ptr<Installable>> & installables,
BuildMode bMode = bmNormal);
static std::vector<std::pair<std::shared_ptr<Installable>, BuiltPath>> build2(
static std::vector<std::pair<std::shared_ptr<Installable>, BuiltPathWithResult>> build2(
ref<Store> evalStore,
ref<Store> store,
Realise mode,

23
src/libstore/derived-path.cc
View file

@ -53,28 +53,13 @@ StorePathSet BuiltPath::outPaths() const
);
}
template<typename T>
nlohmann::json stuffToJSON(const std::vector<T> & ts, ref<Store> store) {
auto res = nlohmann::json::array();
for (const T & t : ts) {
std::visit([&res, store](const auto & t) {
res.push_back(t.toJSON(store));
}, t.raw());
}
return res;
}
nlohmann::json builtPathsToJSON(const BuiltPaths & buildables, ref<Store> store)
{ return stuffToJSON<BuiltPath>(buildables, store); }
nlohmann::json derivedPathsToJSON(const DerivedPaths & paths, ref<Store> store)
{ return stuffToJSON<DerivedPath>(paths, store); }
std::string DerivedPath::Opaque::to_string(const Store & store) const {
std::string DerivedPath::Opaque::to_string(const Store & store) const
{
return store.printStorePath(path);
}
std::string DerivedPath::Built::to_string(const Store & store) const {
std::string DerivedPath::Built::to_string(const Store & store) const
{
return store.printStorePath(drvPath)
+ "!"
+ (outputs.empty() ? std::string { "*" } : concatStringsSep(",", outputs));

3
src/libstore/derived-path.hh
View file

@ -125,7 +125,4 @@ struct BuiltPath : _BuiltPathRaw {
typedef std::vector<DerivedPath> DerivedPaths;
typedef std::vector<BuiltPath> BuiltPaths;
nlohmann::json builtPathsToJSON(const BuiltPaths & buildables, ref<Store> store);
nlohmann::json derivedPathsToJSON(const DerivedPaths & , ref<Store> store);
}

11
src/nix/app.cc
View file

@ -37,11 +37,13 @@ struct InstallableDerivedPath : Installable
* Return the rewrites that are needed to resolve a string whose context is
* included in `dependencies`.
*/
StringPairs resolveRewrites(Store & store, const BuiltPaths dependencies)
StringPairs resolveRewrites(
Store & store,
const std::vector<BuiltPathWithResult> & dependencies)
{
StringPairs res;
for (auto & dep : dependencies)
if (auto drvDep = std::get_if<BuiltPathBuilt>(&dep))
if (auto drvDep = std::get_if<BuiltPathBuilt>(&dep.path))
for (auto & [ outputName, outputPath ] : drvDep->outputs)
res.emplace(
downstreamPlaceholder(store, drvDep->drvPath, outputName),
@ -53,7 +55,10 @@ StringPairs resolveRewrites(Store & store, const BuiltPaths dependencies)
/**
* Resolve the given string assuming the given context.
*/
std::string resolveString(Store & store, const std::string & toResolve, const BuiltPaths dependencies)
std::string resolveString(
Store & store,
const std::string & toResolve,
const std::vector<BuiltPathWithResult> & dependencies)
{
auto rewrites = resolveRewrites(store, dependencies);
return rewriteStrings(toResolve, rewrites);

42
src/nix/build.cc
View file

@ -10,6 +10,37 @@
using namespace nix;
nlohmann::json derivedPathsToJSON(const DerivedPaths & paths, ref<Store> store)
{
auto res = nlohmann::json::array();
for (auto & t : paths) {
std::visit([&res, store](const auto & t) {
res.push_back(t.toJSON(store));
}, t.raw());
}
return res;
}
nlohmann::json builtPathsWithResultToJSON(const std::vector<BuiltPathWithResult> & buildables, ref<Store> store)
{
auto res = nlohmann::json::array();
for (auto & b : buildables) {
std::visit([&](const auto & t) {
auto j = t.toJSON(store);
if (b.result) {
j["startTime"] = b.result->startTime;
j["stopTime"] = b.result->stopTime;
if (b.result->cpuUser)
j["cpuUser"] = ((double) b.result->cpuUser->count()) / 1000000;
if (b.result->cpuSystem)
j["cpuSystem"] = ((double) b.result->cpuSystem->count()) / 1000000;
}
res.push_back(j);
}, b.path.raw());
}
return res;
}
struct CmdBuild : InstallablesCommand, MixDryRun, MixJSON, MixProfile
{
Path outLink = "result";
@ -78,7 +109,7 @@ struct CmdBuild : InstallablesCommand, MixDryRun, MixJSON, MixProfile
Realise::Outputs,
installables, buildMode);
if (json) logger->cout("%s", builtPathsToJSON(buildables, store).dump());
if (json) logger->cout("%s", builtPathsWithResultToJSON(buildables, store).dump());
if (outLink != "")
if (auto store2 = store.dynamic_pointer_cast<LocalFSStore>())
@ -98,7 +129,7 @@ struct CmdBuild : InstallablesCommand, MixDryRun, MixJSON, MixProfile
store2->addPermRoot(output.second, absPath(symlink));
}
},
}, buildable.raw());
}, buildable.path.raw());
}
if (printOutputPaths) {
@ -113,11 +144,14 @@ struct CmdBuild : InstallablesCommand, MixDryRun, MixJSON, MixProfile
std::cout << store->printStorePath(output.second) << std::endl;
}
},
}, buildable.raw());
}, buildable.path.raw());
}
}
updateProfile(buildables);
BuiltPaths buildables2;
for (auto & b : buildables)
buildables2.push_back(b.path);
updateProfile(buildables2);
}
};

4
src/nix/profile.cc
View file

@ -253,11 +253,11 @@ struct ProfileManifest
static std::map<Installable *, BuiltPaths>
builtPathsPerInstallable(
const std::vector<std::pair<std::shared_ptr<Installable>, BuiltPath>> & builtPaths)
const std::vector<std::pair<std::shared_ptr<Installable>, BuiltPathWithResult>> & builtPaths)
{
std::map<Installable *, BuiltPaths> res;
for (auto & [installable, builtPath] : builtPaths)
res[installable.get()].push_back(builtPath);
res[installable.get()].push_back(builtPath.path);
return res;
}