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nix build --json: Include build statistics

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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 e7a5b76844
commit f0baa5c128
7 changed files with 73 additions and 46 deletions
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23
src/libstore/derived-path.cc
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@ -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));