diff options
| -rw-r--r-- | doc/flakes/design.md | 37 | ||||
| -rw-r--r-- | flake.lock | 8 | ||||
| -rw-r--r-- | flake.nix | 10 | ||||
| -rw-r--r-- | src/libexpr/primops/flake.cc | 90 | ||||
| -rw-r--r-- | src/libexpr/primops/flake.hh | 6 | ||||
| -rw-r--r-- | src/nix/flake.cc | 20 | ||||
| -rw-r--r-- | src/nix/installables.cc | 14 | ||||
| -rw-r--r-- | tests/flakes.sh | 38 |
8 files changed, 112 insertions, 111 deletions
diff --git a/doc/flakes/design.md b/doc/flakes/design.md index ebc229b09..4f6524f83 100644 --- a/doc/flakes/design.md +++ b/doc/flakes/design.md @@ -103,12 +103,12 @@ module. # A list of flake references denoting the flakes that this flake # depends on. Nix will resolve and fetch these flakes and pass them - # as a function argument to `provides` below. + # as a function argument to `outputs` below. # # `flake:nixpkgs` denotes a flake named `nixpkgs` which is looked up # in the flake registry, or in `flake.lock` inside this flake, if it # exists. - requires = [ flake:nixpkgs ]; + inputs = [ flake:nixpkgs ]; # The stuff provided by this flake. Flakes can provide whatever they # want (convention over configuration), but some attributes have @@ -117,9 +117,9 @@ module. # `nixosModules` is used by NixOS to automatically pull in the # modules provided by a flake. # - # `provides` takes a single argument named `deps` that contains + # `outputs` takes a single argument named `deps` that contains # the resolved set of flakes. (See below.) - provides = deps: { + outputs = deps: { # This is searched by `nix`, so something like `nix install # dwarffs.dwarffs` resolves to this `packages.dwarffs`. @@ -168,7 +168,7 @@ Similarly, a minimal `flake.nix` for Nixpkgs: description = "A collection of packages for the Nix package manager"; - provides = deps: + outputs = deps: let pkgs = import ./. {}; in { lib = import ./lib; @@ -310,9 +310,9 @@ Example: ``` -## `provides` +## `outputs` -The flake attribute `provides` is a function that takes an argument +The flake attribute `outputs` is a function that takes an argument named `deps` and returns a (mostly) arbitrary attrset of values. Some of the standard result attributes: @@ -329,13 +329,13 @@ of the standard result attributes: we need to avoid a situation where `nixos-rebuild` needs to fetch its own `nixpkgs` just to do `evalModules`.) -* `shell`: A specification of a development environment in some TBD +* `devShell`: A specification of a development environment in some TBD format. The function argument `flakes` is an attrset that contains an -attribute for each dependency specified in `requires`. (Should it +attribute for each dependency specified in `inputs`. (Should it contain transitive dependencies? Probably not.) Each attribute is an -attrset containing the `provides` of the dependency, in addition to +attrset containing the `outputs` of the dependency, in addition to the following attributes: * `path`: The path to the flake's source code. Useful when you want to @@ -366,13 +366,13 @@ It may be useful to pull in repositories that are not flakes (i.e. don't contain a `flake.nix`). This could be done in two ways: * Allow flakes not to have a `flake.nix` file, in which case it's a - flake with no requires and no provides. The downside of this + flake with no inputs and no outputs. The downside of this approach is that we can't detect accidental use of a non-flake repository. (Also, we need to conjure up an identifier somehow.) * Add a flake attribute to specifiy non-flake dependencies, e.g. - > nonFlakeRequires.foobar = github:foo/bar; + > nonFlakeInputs.foobar = github:foo/bar; ## Flake registry @@ -454,7 +454,7 @@ The default installation source in `nix` is the `packages` from all flakes in the registry, that is: ``` builtins.mapAttrs (flakeName: flakeInfo: - (getFlake flakeInfo.uri).${flakeName}.provides.packages or {}) + (getFlake flakeInfo.uri).${flakeName}.outputs.packages or {}) builtins.flakeRegistry ``` (where `builtins.flakeRegistry` is the global registry with user @@ -476,10 +476,11 @@ in the registry named `hello`. Maybe the command -> nix shell +> nix dev-shell -should do something like use `provides.shell` to initialize the shell, -but probably we should ditch `nix shell` / `nix-shell` for direnv. +should do something like use `outputs.devShell` to initialize the +shell, but probably we should ditch `nix shell` / `nix-shell` for +direnv. ## Pure evaluation and caching @@ -535,7 +536,7 @@ repositories. ```nix { - provides = flakes: { + outputs = flakes: { nixosSystems.default = flakes.nixpkgs.lib.evalModules { modules = @@ -549,7 +550,7 @@ repositories. }; }; - requires = + inputs = [ "nixpkgs/nixos-18.09" "dwarffs" "hydra" diff --git a/flake.lock b/flake.lock index 965d038ce..b85571b61 100644 --- a/flake.lock +++ b/flake.lock @@ -1,10 +1,10 @@ { - "nonFlakeRequires": {}, - "requires": { + "inputs": { "nixpkgs": { - "contentHash": "sha256-vy2UmXQM66aS/Kn2tCtjt9RwxfBvV+nQVb5tJQFwi8E=", - "uri": "github:edolstra/nixpkgs/a4d896e89932e873c4117908d558db6210fa3b56" + "narHash": "sha256-rMiWaLXkhizEEMEeMDutUl0Y/c+VEjfjvMkvBwvuQJU=", + "uri": "github:edolstra/nixpkgs/eeeffd24cd7e407cfaa99e98cfbb8f93bf4cc033" } }, + "nonFlakeInputs": {}, "version": 1 } @@ -5,13 +5,13 @@ epoch = 2019; - requires = [ "nixpkgs" ]; + inputs = [ "nixpkgs" ]; - provides = deps: rec { + outputs = inputs: rec { hydraJobs = import ./release.nix { - nix = deps.self; - nixpkgs = deps.nixpkgs; + nix = inputs.self; + nixpkgs = inputs.nixpkgs; }; checks = { @@ -29,7 +29,7 @@ defaultPackage = packages.nix; devShell = import ./shell.nix { - nixpkgs = deps.nixpkgs; + nixpkgs = inputs.nixpkgs; }; }; } diff --git a/src/libexpr/primops/flake.cc b/src/libexpr/primops/flake.cc index 0d762f2a1..fdbdc83bc 100644 --- a/src/libexpr/primops/flake.cc +++ b/src/libexpr/primops/flake.cc @@ -56,21 +56,21 @@ LockFile::FlakeEntry readFlakeEntry(nlohmann::json json) if (!flakeRef.isImmutable()) throw Error("cannot use mutable flake '%s' in pure mode", flakeRef); - LockFile::FlakeEntry entry(flakeRef, Hash((std::string) json["contentHash"])); + LockFile::FlakeEntry entry(flakeRef, Hash((std::string) json["narHash"])); - auto nonFlakeRequires = json["nonFlakeRequires"]; + auto nonFlakeInputs = json["nonFlakeInputs"]; - for (auto i = nonFlakeRequires.begin(); i != nonFlakeRequires.end(); ++i) { + for (auto i = nonFlakeInputs.begin(); i != nonFlakeInputs.end(); ++i) { FlakeRef flakeRef(i->value("uri", "")); if (!flakeRef.isImmutable()) throw Error("requested to fetch FlakeRef '%s' purely, which is mutable", flakeRef); - LockFile::NonFlakeEntry nonEntry(flakeRef, Hash(i->value("contentHash", ""))); + LockFile::NonFlakeEntry nonEntry(flakeRef, Hash(i->value("narHash", ""))); entry.nonFlakeEntries.insert_or_assign(i.key(), nonEntry); } - auto requires = json["requires"]; + auto inputs = json["inputs"]; - for (auto i = requires.begin(); i != requires.end(); ++i) + for (auto i = inputs.begin(); i != inputs.end(); ++i) entry.flakeEntries.insert_or_assign(i.key(), readFlakeEntry(*i)); return entry; @@ -89,19 +89,19 @@ LockFile readLockFile(const Path & path) if (version != 1) throw Error("lock file '%s' has unsupported version %d", path, version); - auto nonFlakeRequires = json["nonFlakeRequires"]; + auto nonFlakeInputs = json["nonFlakeInputs"]; - for (auto i = nonFlakeRequires.begin(); i != nonFlakeRequires.end(); ++i) { + for (auto i = nonFlakeInputs.begin(); i != nonFlakeInputs.end(); ++i) { FlakeRef flakeRef(i->value("uri", "")); - LockFile::NonFlakeEntry nonEntry(flakeRef, Hash(i->value("contentHash", ""))); + LockFile::NonFlakeEntry nonEntry(flakeRef, Hash(i->value("narHash", ""))); if (!flakeRef.isImmutable()) throw Error("found mutable FlakeRef '%s' in lockfile at path %s", flakeRef, path); lockFile.nonFlakeEntries.insert_or_assign(i.key(), nonEntry); } - auto requires = json["requires"]; + auto inputs = json["inputs"]; - for (auto i = requires.begin(); i != requires.end(); ++i) + for (auto i = inputs.begin(); i != inputs.end(); ++i) lockFile.flakeEntries.insert_or_assign(i.key(), readFlakeEntry(*i)); return lockFile; @@ -111,13 +111,13 @@ nlohmann::json flakeEntryToJson(const LockFile::FlakeEntry & entry) { nlohmann::json json; json["uri"] = entry.ref.to_string(); - json["contentHash"] = entry.narHash.to_string(SRI); + json["narHash"] = entry.narHash.to_string(SRI); for (auto & x : entry.nonFlakeEntries) { - json["nonFlakeRequires"][x.first]["uri"] = x.second.ref.to_string(); - json["nonFlakeRequires"][x.first]["contentHash"] = x.second.narHash.to_string(SRI); + json["nonFlakeInputs"][x.first]["uri"] = x.second.ref.to_string(); + json["nonFlakeInputs"][x.first]["narHash"] = x.second.narHash.to_string(SRI); } for (auto & x : entry.flakeEntries) - json["requires"][x.first.to_string()] = flakeEntryToJson(x.second); + json["inputs"][x.first.to_string()] = flakeEntryToJson(x.second); return json; } @@ -125,14 +125,14 @@ void writeLockFile(const LockFile & lockFile, const Path & path) { nlohmann::json json; json["version"] = 1; - json["nonFlakeRequires"] = nlohmann::json::object(); + json["nonFlakeInputs"] = nlohmann::json::object(); for (auto & x : lockFile.nonFlakeEntries) { - json["nonFlakeRequires"][x.first]["uri"] = x.second.ref.to_string(); - json["nonFlakeRequires"][x.first]["contentHash"] = x.second.narHash.to_string(SRI); + json["nonFlakeInputs"][x.first]["uri"] = x.second.ref.to_string(); + json["nonFlakeInputs"][x.first]["narHash"] = x.second.narHash.to_string(SRI); } - json["requires"] = nlohmann::json::object(); + json["inputs"] = nlohmann::json::object(); for (auto & x : lockFile.flakeEntries) - json["requires"][x.first.to_string()] = flakeEntryToJson(x.second); + json["inputs"][x.first.to_string()] = flakeEntryToJson(x.second); createDirs(dirOf(path)); writeFile(path, json.dump(4) + "\n"); // '4' = indentation in json file } @@ -319,41 +319,41 @@ Flake getFlake(EvalState & state, const FlakeRef & flakeRef, bool impureIsAllowe if (auto description = vInfo.attrs->get(state.sDescription)) flake.description = state.forceStringNoCtx(*(**description).value, *(**description).pos); - auto sRequires = state.symbols.create("requires"); + auto sInputs = state.symbols.create("inputs"); - if (auto requires = vInfo.attrs->get(sRequires)) { - state.forceList(*(**requires).value, *(**requires).pos); - for (unsigned int n = 0; n < (**requires).value->listSize(); ++n) - flake.requires.push_back(FlakeRef(state.forceStringNoCtx( - *(**requires).value->listElems()[n], *(**requires).pos))); + if (auto inputs = vInfo.attrs->get(sInputs)) { + state.forceList(*(**inputs).value, *(**inputs).pos); + for (unsigned int n = 0; n < (**inputs).value->listSize(); ++n) + flake.inputs.push_back(FlakeRef(state.forceStringNoCtx( + *(**inputs).value->listElems()[n], *(**inputs).pos))); } - auto sNonFlakeRequires = state.symbols.create("nonFlakeRequires"); + auto sNonFlakeInputs = state.symbols.create("nonFlakeInputs"); - if (std::optional<Attr *> nonFlakeRequires = vInfo.attrs->get(sNonFlakeRequires)) { - state.forceAttrs(*(**nonFlakeRequires).value, *(**nonFlakeRequires).pos); - for (Attr attr : *(*(**nonFlakeRequires).value).attrs) { + if (std::optional<Attr *> nonFlakeInputs = vInfo.attrs->get(sNonFlakeInputs)) { + state.forceAttrs(*(**nonFlakeInputs).value, *(**nonFlakeInputs).pos); + for (Attr attr : *(*(**nonFlakeInputs).value).attrs) { std::string myNonFlakeUri = state.forceStringNoCtx(*attr.value, *attr.pos); FlakeRef nonFlakeRef = FlakeRef(myNonFlakeUri); - flake.nonFlakeRequires.insert_or_assign(attr.name, nonFlakeRef); + flake.nonFlakeInputs.insert_or_assign(attr.name, nonFlakeRef); } } - auto sProvides = state.symbols.create("provides"); + auto sOutputs = state.symbols.create("outputs"); - if (auto provides = vInfo.attrs->get(sProvides)) { - state.forceFunction(*(**provides).value, *(**provides).pos); - flake.vProvides = (**provides).value; + if (auto outputs = vInfo.attrs->get(sOutputs)) { + state.forceFunction(*(**outputs).value, *(**outputs).pos); + flake.vOutputs = (**outputs).value; } else - throw Error("flake '%s' lacks attribute 'provides'", flakeRef); + throw Error("flake '%s' lacks attribute 'outputs'", flakeRef); for (auto & attr : *vInfo.attrs) { if (attr.name != sEpoch && attr.name != state.sName && attr.name != state.sDescription && - attr.name != sRequires && - attr.name != sNonFlakeRequires && - attr.name != sProvides) + attr.name != sInputs && + attr.name != sNonFlakeInputs && + attr.name != sOutputs) throw Error("flake '%s' has an unsupported attribute '%s', at %s", flakeRef, attr.name, *attr.pos); } @@ -436,7 +436,7 @@ ResolvedFlake resolveFlakeFromLockFile(EvalState & state, const FlakeRef & flake ResolvedFlake deps(flake); - for (auto & nonFlakeInfo : flake.nonFlakeRequires) { + for (auto & nonFlakeInfo : flake.nonFlakeInputs) { FlakeRef ref = nonFlakeInfo.second; auto i = lockFile.nonFlakeEntries.find(nonFlakeInfo.first); if (i != lockFile.nonFlakeEntries.end()) { @@ -451,7 +451,7 @@ ResolvedFlake resolveFlakeFromLockFile(EvalState & state, const FlakeRef & flake } } - for (auto newFlakeRef : flake.requires) { + for (auto newFlakeRef : flake.inputs) { auto i = lockFile.flakeEntries.find(newFlakeRef); if (i != lockFile.flakeEntries.end()) { // Propagate lockFile downwards if possible ResolvedFlake newResFlake = resolveFlakeFromLockFile(state, i->second.ref, handleLockFile, entryToLockFile(i->second)); @@ -532,8 +532,8 @@ static void emitSourceInfoAttrs(EvalState & state, const SourceInfo & sourceInfo void callFlake(EvalState & state, const ResolvedFlake & resFlake, Value & v) { - // Construct the resulting attrset '{description, provides, - // ...}'. This attrset is passed lazily as an argument to 'provides'. + // Construct the resulting attrset '{description, outputs, + // ...}'. This attrset is passed lazily as an argument to 'outputs'. state.mkAttrs(v, resFlake.flakeDeps.size() + resFlake.nonFlakeDeps.size() + 8); @@ -558,8 +558,8 @@ void callFlake(EvalState & state, const ResolvedFlake & resFlake, Value & v) emitSourceInfoAttrs(state, resFlake.flake.sourceInfo, v); - auto vProvides = state.allocAttr(v, state.symbols.create("provides")); - mkApp(*vProvides, *resFlake.flake.vProvides, v); + auto vOutputs = state.allocAttr(v, state.symbols.create("outputs")); + mkApp(*vOutputs, *resFlake.flake.vOutputs, v); v.attrs->push_back(Attr(state.symbols.create("self"), &v)); diff --git a/src/libexpr/primops/flake.hh b/src/libexpr/primops/flake.hh index 340b97c65..82b0973f6 100644 --- a/src/libexpr/primops/flake.hh +++ b/src/libexpr/primops/flake.hh @@ -106,9 +106,9 @@ struct Flake FlakeRef originalRef; std::string description; SourceInfo sourceInfo; - std::vector<FlakeRef> requires; - std::map<FlakeAlias, FlakeRef> nonFlakeRequires; - Value * vProvides; // FIXME: gc + std::vector<FlakeRef> inputs; + std::map<FlakeAlias, FlakeRef> nonFlakeInputs; + Value * vOutputs; // FIXME: gc unsigned int epoch; Flake(const FlakeRef & origRef, const SourceInfo & sourceInfo) diff --git a/src/nix/flake.cc b/src/nix/flake.cc index 872ec2849..8d6716391 100644 --- a/src/nix/flake.cc +++ b/src/nix/flake.cc @@ -199,16 +199,16 @@ struct CmdFlakeUpdate : FlakeCommand } }; -static void enumerateProvides(EvalState & state, Value & vFlake, +static void enumerateOutputs(EvalState & state, Value & vFlake, std::function<void(const std::string & name, Value & vProvide)> callback) { state.forceAttrs(vFlake); - auto vProvides = (*vFlake.attrs->get(state.symbols.create("provides")))->value; + auto vOutputs = (*vFlake.attrs->get(state.symbols.create("outputs")))->value; - state.forceAttrs(*vProvides); + state.forceAttrs(*vOutputs); - for (auto & attr : *vProvides->attrs) + for (auto & attr : *vOutputs->attrs) callback(attr.name, *attr.value); } @@ -237,9 +237,9 @@ struct CmdFlakeInfo : FlakeCommand, MixJSON auto vFlake = state->allocValue(); flake::callFlake(*state, flake, *vFlake); - auto provides = nlohmann::json::object(); + auto outputs = nlohmann::json::object(); - enumerateProvides(*state, + enumerateOutputs(*state, *vFlake, [&](const std::string & name, Value & vProvide) { auto provide = nlohmann::json::object(); @@ -250,10 +250,10 @@ struct CmdFlakeInfo : FlakeCommand, MixJSON provide[aCheck.name] = nlohmann::json::object(); } - provides[name] = provide; + outputs[name] = provide; }); - json["provides"] = std::move(provides); + json["outputs"] = std::move(outputs); std::cout << json.dump() << std::endl; } else @@ -298,7 +298,7 @@ struct CmdFlakeCheck : FlakeCommand, MixJSON // FIXME: check meta attributes return drvInfo->queryDrvPath(); } catch (Error & e) { - e.addPrefix(fmt("while checking flake attribute '" ANSI_BOLD "%s" ANSI_NORMAL "':\n", attrPath)); + e.addPrefix(fmt("while checking flake output attribute '" ANSI_BOLD "%s" ANSI_NORMAL "':\n", attrPath)); throw; } }; @@ -311,7 +311,7 @@ struct CmdFlakeCheck : FlakeCommand, MixJSON auto vFlake = state->allocValue(); flake::callFlake(*state, flake, *vFlake); - enumerateProvides(*state, + enumerateOutputs(*state, *vFlake, [&](const std::string & name, Value & vProvide) { Activity act(*logger, lvlChatty, actUnknown, diff --git a/src/nix/installables.cc b/src/nix/installables.cc index ea12cd79c..fe89a6bb4 100644 --- a/src/nix/installables.cc +++ b/src/nix/installables.cc @@ -230,16 +230,16 @@ struct InstallableFlake : InstallableValue makeFlakeClosureGCRoot(*state.store, flakeRef, resFlake); - auto vProvides = (*vFlake->attrs->get(state.symbols.create("provides")))->value; + auto vOutputs = (*vFlake->attrs->get(state.symbols.create("outputs")))->value; - state.forceValue(*vProvides); + state.forceValue(*vOutputs); auto emptyArgs = state.allocBindings(0); if (searchPackages) { // As a convenience, look for the attribute in - // 'provides.packages'. - if (auto aPackages = *vProvides->attrs->get(state.symbols.create("packages"))) { + // 'outputs.packages'. + if (auto aPackages = *vOutputs->attrs->get(state.symbols.create("packages"))) { try { auto * v = findAlongAttrPath(state, *attrPaths.begin(), *emptyArgs, *aPackages->value); state.forceValue(*v); @@ -250,7 +250,7 @@ struct InstallableFlake : InstallableValue // As a temporary hack until Nixpkgs is properly converted // to provide a clean 'packages' set, look in 'legacyPackages'. - if (auto aPackages = *vProvides->attrs->get(state.symbols.create("legacyPackages"))) { + if (auto aPackages = *vOutputs->attrs->get(state.symbols.create("legacyPackages"))) { try { auto * v = findAlongAttrPath(state, *attrPaths.begin(), *emptyArgs, *aPackages->value); state.forceValue(*v); @@ -260,10 +260,10 @@ struct InstallableFlake : InstallableValue } } - // Otherwise, look for it in 'provides'. + // Otherwise, look for it in 'outputs'. for (auto & attrPath : attrPaths) { try { - auto * v = findAlongAttrPath(state, attrPath, *emptyArgs, *vProvides); + auto * v = findAlongAttrPath(state, attrPath, *emptyArgs, *vOutputs); state.forceValue(*v); return v; } catch (AttrPathNotFound & e) { diff --git a/tests/flakes.sh b/tests/flakes.sh index d95d34c76..377f93c8e 100644 --- a/tests/flakes.sh +++ b/tests/flakes.sh @@ -33,7 +33,7 @@ cat > $flake1Dir/flake.nix <<EOF description = "Bla bla"; - provides = deps: rec { + outputs = inputs: rec { packages.foo = import ./simple.nix; defaultPackage = packages.foo; }; @@ -50,12 +50,12 @@ cat > $flake2Dir/flake.nix <<EOF epoch = 2019; - requires = [ "flake1" ]; + inputs = [ "flake1" ]; description = "Fnord"; - provides = deps: rec { - packages.bar = deps.flake1.provides.packages.foo; + outputs = inputs: rec { + packages.bar = inputs.flake1.outputs.packages.foo; }; } EOF @@ -69,12 +69,12 @@ cat > $flake3Dir/flake.nix <<EOF epoch = 2019; - requires = [ "flake2" ]; + inputs = [ "flake2" ]; description = "Fnord"; - provides = deps: rec { - packages.xyzzy = deps.flake2.provides.packages.bar; + outputs = inputs: rec { + packages.xyzzy = inputs.flake2.outputs.packages.bar; }; } EOF @@ -168,13 +168,13 @@ cat > $flake3Dir/flake.nix <<EOF epoch = 2019; - requires = [ "flake1" "flake2" ]; + inputs = [ "flake1" "flake2" ]; description = "Fnord"; - provides = deps: rec { - packages.xyzzy = deps.flake2.provides.packages.bar; - packages.sth = deps.flake1.provides.packages.foo; + outputs = inputs: rec { + packages.xyzzy = inputs.flake2.outputs.packages.bar; + packages.sth = inputs.flake1.outputs.packages.foo; }; } EOF @@ -209,7 +209,7 @@ nix build -o $TEST_ROOT/result --flake-registry file://$registry file://$flake2D mv $flake1Dir.tmp $flake1Dir mv $flake2Dir.tmp $flake2Dir -# Add nonFlakeRequires to flake3. +# Add nonFlakeInputs to flake3. rm $flake3Dir/flake.nix cat > $flake3Dir/flake.nix <<EOF @@ -218,23 +218,23 @@ cat > $flake3Dir/flake.nix <<EOF epoch = 2019; - requires = [ "flake1" "flake2" ]; + inputs = [ "flake1" "flake2" ]; - nonFlakeRequires = { + nonFlakeInputs = { nonFlake = "$nonFlakeDir"; }; description = "Fnord"; - provides = deps: rec { - packages.xyzzy = deps.flake2.provides.packages.bar; - packages.sth = deps.flake1.provides.packages.foo; + outputs = inputs: rec { + packages.xyzzy = inputs.flake2.outputs.packages.bar; + packages.sth = inputs.flake1.outputs.packages.foo; }; } EOF git -C $flake3Dir add flake.nix -git -C $flake3Dir commit -m 'Add nonFlakeRequires' +git -C $flake3Dir commit -m 'Add nonFlakeInputs' -# Check whether `nix build` works with a lockfile which is missing a nonFlakeRequires +# Check whether `nix build` works with a lockfile which is missing a nonFlakeInputs nix build -o $TEST_ROOT/result --flake-registry $registry $flake3Dir:sth |