forked from lix-project/lix
Turn flake inputs into an attrset
Instead of a list, inputs are now an attrset like
inputs = {
nixpkgs.uri = github:NixOS/nixpkgs;
};
If 'uri' is omitted, than the flake is a lookup in the flake registry, e.g.
inputs = {
nixpkgs = {};
};
but in that case, you can also just omit the input altogether and
specify it as an argument to the 'outputs' function, as in
outputs = { self, nixpkgs }: ...
This also gets rid of 'nonFlakeInputs', which are now just a special
kind of input that have a 'flake = false' attribute, e.g.
inputs = {
someRepo = {
uri = github:example/repo;
flake = false;
};
};
This commit is contained in:
Eelco Dolstra
parent
0588d72286
commit
30ccf4e52d
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@ -248,22 +248,28 @@ Flake getFlake(EvalState & state, const FlakeRef & flakeRef)
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flake.description = state.forceStringNoCtx(*(**description).value, *(**description).pos);
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auto sInputs = state.symbols.create("inputs");
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auto sUri = state.symbols.create("uri");
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auto sFlake = state.symbols.create("flake");
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if (auto inputs = vInfo.attrs->get(sInputs)) {
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state.forceList(*(**inputs).value, *(**inputs).pos);
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for (unsigned int n = 0; n < (**inputs).value->listSize(); ++n)
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flake.inputs.push_back(FlakeRef(state.forceStringNoCtx(
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*(**inputs).value->listElems()[n], *(**inputs).pos)));
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if (std::optional<Attr *> inputs = vInfo.attrs->get(sInputs)) {
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state.forceAttrs(*(**inputs).value, *(**inputs).pos);
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for (Attr inputAttr : *(*(**inputs).value).attrs) {
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state.forceAttrs(*inputAttr.value, *inputAttr.pos);
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FlakeInput input(FlakeRef(inputAttr.name));
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for (Attr attr : *(inputAttr.value->attrs)) {
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if (attr.name == sUri) {
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input.ref = state.forceStringNoCtx(*attr.value, *attr.pos);
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} else if (attr.name == sFlake) {
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input.isFlake = state.forceBool(*attr.value, *attr.pos);
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} else
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throw Error("flake input '%s' has an unsupported attribute '%s', at %s",
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inputAttr.name, attr.name, *attr.pos);
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}
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auto sNonFlakeInputs = state.symbols.create("nonFlakeInputs");
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if (std::optional<Attr *> nonFlakeInputs = vInfo.attrs->get(sNonFlakeInputs)) {
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state.forceAttrs(*(**nonFlakeInputs).value, *(**nonFlakeInputs).pos);
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for (Attr attr : *(*(**nonFlakeInputs).value).attrs) {
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std::string myNonFlakeUri = state.forceStringNoCtx(*attr.value, *attr.pos);
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FlakeRef nonFlakeRef = FlakeRef(myNonFlakeUri);
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flake.nonFlakeInputs.insert_or_assign(attr.name, nonFlakeRef);
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flake.inputs.emplace(inputAttr.name, input);
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}
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}
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@ -275,9 +281,8 @@ Flake getFlake(EvalState & state, const FlakeRef & flakeRef)
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if (flake.vOutputs->lambda.fun->matchAttrs) {
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for (auto & formal : flake.vOutputs->lambda.fun->formals->formals) {
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if (formal.name != state.sSelf) {
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flake.inputs.push_back(FlakeRef(formal.name));
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}
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if (formal.name != state.sSelf)
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flake.inputs.emplace(formal.name, FlakeInput(FlakeRef(formal.name)));
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}
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}
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@ -290,7 +295,6 @@ Flake getFlake(EvalState & state, const FlakeRef & flakeRef)
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attr.name != state.sName &&
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attr.name != state.sDescription &&
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attr.name != sInputs &&
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attr.name != sNonFlakeInputs &&
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attr.name != sOutputs)
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throw Error("flake '%s' has an unsupported attribute '%s', at %s",
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flakeRef, attr.name, *attr.pos);
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@ -299,21 +303,19 @@ Flake getFlake(EvalState & state, const FlakeRef & flakeRef)
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return flake;
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}
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NonFlake getNonFlake(EvalState & state, const FlakeRef & flakeRef)
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static SourceInfo getNonFlake(EvalState & state, const FlakeRef & flakeRef)
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{
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auto sourceInfo = fetchFlake(state, flakeRef);
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debug("got non-flake source '%s' with flakeref %s", sourceInfo.storePath, sourceInfo.resolvedRef.to_string());
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FlakeRef resolvedRef = sourceInfo.resolvedRef;
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NonFlake nonFlake(flakeRef, sourceInfo);
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state.store->assertStorePath(nonFlake.sourceInfo.storePath);
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state.store->assertStorePath(sourceInfo.storePath);
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if (state.allowedPaths)
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state.allowedPaths->insert(nonFlake.sourceInfo.storePath);
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state.allowedPaths->insert(sourceInfo.storePath);
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return nonFlake;
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return sourceInfo;
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}
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bool allowedToWrite(HandleLockFile handle)
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@ -346,46 +348,33 @@ bool allowedToUseRegistries(HandleLockFile handle, bool isTopRef)
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Note that this is lazy: we only recursively fetch inputs that are
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not in the lockfile yet. */
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static std::pair<Flake, FlakeInput> updateLocks(
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static std::pair<Flake, LockedInput> updateLocks(
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EvalState & state,
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const Flake & flake,
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HandleLockFile handleLockFile,
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const FlakeInputs & oldEntry,
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const LockedInputs & oldEntry,
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bool topRef)
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{
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FlakeInput newEntry(
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flake.id,
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LockedInput newEntry(
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flake.sourceInfo.resolvedRef,
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flake.sourceInfo.narHash);
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for (auto & input : flake.nonFlakeInputs) {
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auto & id = input.first;
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auto & ref = input.second;
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auto i = oldEntry.nonFlakeInputs.find(id);
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if (i != oldEntry.nonFlakeInputs.end()) {
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newEntry.nonFlakeInputs.insert_or_assign(i->first, i->second);
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for (auto & [id, input] : flake.inputs) {
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auto i = oldEntry.inputs.find(id);
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if (i != oldEntry.inputs.end()) {
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newEntry.inputs.insert_or_assign(id, i->second);
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} else {
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if (handleLockFile == AllPure || handleLockFile == TopRefUsesRegistries)
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throw Error("cannot update non-flake dependency '%s' in pure mode", id);
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auto nonFlake = getNonFlake(state, maybeLookupFlake(state, ref, allowedToUseRegistries(handleLockFile, false)));
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newEntry.nonFlakeInputs.insert_or_assign(id,
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NonFlakeInput(
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nonFlake.sourceInfo.resolvedRef,
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nonFlake.sourceInfo.narHash));
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}
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}
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for (auto & inputRef : flake.inputs) {
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auto i = oldEntry.flakeInputs.find(inputRef);
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if (i != oldEntry.flakeInputs.end()) {
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newEntry.flakeInputs.insert_or_assign(inputRef, i->second);
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} else {
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if (handleLockFile == AllPure || handleLockFile == TopRefUsesRegistries)
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throw Error("cannot update flake dependency '%s' in pure mode", inputRef);
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newEntry.flakeInputs.insert_or_assign(inputRef,
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throw Error("cannot update flake input '%s' in pure mode", id);
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if (input.isFlake)
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newEntry.inputs.insert_or_assign(id,
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updateLocks(state,
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getFlake(state, maybeLookupFlake(state, inputRef, allowedToUseRegistries(handleLockFile, false))),
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getFlake(state, maybeLookupFlake(state, input.ref, allowedToUseRegistries(handleLockFile, false))),
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handleLockFile, {}, false).second);
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else {
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auto sourceInfo = getNonFlake(state, maybeLookupFlake(state, input.ref, allowedToUseRegistries(handleLockFile, false)));
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newEntry.inputs.insert_or_assign(id, LockedInput(sourceInfo.resolvedRef, sourceInfo.narHash));
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}
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}
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}
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@ -462,81 +451,69 @@ static void emitSourceInfoAttrs(EvalState & state, const SourceInfo & sourceInfo
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std::put_time(std::gmtime(&*sourceInfo.lastModified), "%Y%m%d%H%M%S")));
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}
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struct LazyInput
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{
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bool isFlake;
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LockedInput lockedInput;
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};
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/* Helper primop to make callFlake (below) fetch/call its inputs
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lazily. Note that this primop cannot be called by user code since
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it doesn't appear in 'builtins'. */
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static void prim_callFlake(EvalState & state, const Pos & pos, Value * * args, Value & v)
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{
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auto lazyFlake = (FlakeInput *) args[0]->attrs;
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auto lazyInput = (LazyInput *) args[0]->attrs;
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assert(lazyFlake->ref.isImmutable());
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assert(lazyInput->lockedInput.ref.isImmutable());
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auto flake = getFlake(state, lazyFlake->ref);
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if (lazyInput->isFlake) {
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auto flake = getFlake(state, lazyInput->lockedInput.ref);
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if (flake.sourceInfo.narHash != lazyFlake->narHash)
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if (flake.sourceInfo.narHash != lazyInput->lockedInput.narHash)
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throw Error("the content hash of flake '%s' doesn't match the hash recorded in the referring lockfile", flake.sourceInfo.resolvedRef);
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callFlake(state, flake, *lazyFlake, v);
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}
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callFlake(state, flake, lazyInput->lockedInput, v);
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} else {
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auto sourceInfo = getNonFlake(state, lazyInput->lockedInput.ref);
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static void prim_callNonFlake(EvalState & state, const Pos & pos, Value * * args, Value & v)
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{
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auto lazyNonFlake = (NonFlakeInput *) args[0]->attrs;
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assert(lazyNonFlake->ref.isImmutable());
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auto nonFlake = getNonFlake(state, lazyNonFlake->ref);
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if (nonFlake.sourceInfo.narHash != lazyNonFlake->narHash)
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throw Error("the content hash of repository '%s' doesn't match the hash recorded in the referring lockfile", nonFlake.sourceInfo.resolvedRef);
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if (sourceInfo.narHash != lazyInput->lockedInput.narHash)
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throw Error("the content hash of repository '%s' doesn't match the hash recorded in the referring lockfile", sourceInfo.resolvedRef);
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state.mkAttrs(v, 8);
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assert(state.store->isValidPath(nonFlake.sourceInfo.storePath));
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assert(state.store->isValidPath(sourceInfo.storePath));
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mkString(*state.allocAttr(v, state.sOutPath),
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nonFlake.sourceInfo.storePath, {nonFlake.sourceInfo.storePath});
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sourceInfo.storePath, {sourceInfo.storePath});
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emitSourceInfoAttrs(state, nonFlake.sourceInfo, v);
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emitSourceInfoAttrs(state, sourceInfo, v);
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}
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}
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void callFlake(EvalState & state,
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const Flake & flake,
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const FlakeInputs & inputs,
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const LockedInputs & lockedInputs,
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Value & vRes)
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{
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auto & vInputs = *state.allocValue();
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state.mkAttrs(vInputs,
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inputs.flakeInputs.size() +
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inputs.nonFlakeInputs.size() + 1);
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state.mkAttrs(vInputs, flake.inputs.size() + 1);
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for (auto & dep : inputs.flakeInputs) {
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auto vFlake = state.allocAttr(vInputs, dep.second.id);
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for (auto & [inputId, input] : flake.inputs) {
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auto vFlake = state.allocAttr(vInputs, inputId);
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auto vPrimOp = state.allocValue();
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static auto primOp = new PrimOp(prim_callFlake, 1, state.symbols.create("callFlake"));
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vPrimOp->type = tPrimOp;
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vPrimOp->primOp = primOp;
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auto vArg = state.allocValue();
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vArg->type = tNull;
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auto lockedInput = lockedInputs.inputs.find(inputId);
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assert(lockedInput != lockedInputs.inputs.end());
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// FIXME: leak
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vArg->attrs = (Bindings *) new FlakeInput(dep.second); // evil! also inefficient
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vArg->attrs = (Bindings *) new LazyInput{input.isFlake, lockedInput->second};
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mkApp(*vFlake, *vPrimOp, *vArg);
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}
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for (auto & dep : inputs.nonFlakeInputs) {
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auto vNonFlake = state.allocAttr(vInputs, dep.first);
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auto vPrimOp = state.allocValue();
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static auto primOp = new PrimOp(prim_callNonFlake, 1, state.symbols.create("callNonFlake"));
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vPrimOp->type = tPrimOp;
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vPrimOp->primOp = primOp;
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auto vArg = state.allocValue();
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vArg->type = tNull;
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// FIXME: leak
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vArg->attrs = (Bindings *) new NonFlakeInput(dep.second); // evil! also inefficient
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mkApp(*vNonFlake, *vPrimOp, *vArg);
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}
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auto & vSourceInfo = *state.allocValue();
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state.mkAttrs(vSourceInfo, 8);
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emitSourceInfoAttrs(state, flake.sourceInfo, vSourceInfo);
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@ -58,14 +58,20 @@ struct SourceInfo
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SourceInfo(const FlakeRef & resolvRef) : resolvedRef(resolvRef) {};
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};
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struct FlakeInput
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{
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FlakeRef ref;
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bool isFlake = true;
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FlakeInput(const FlakeRef & ref) : ref(ref) {};
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};
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struct Flake
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{
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FlakeId id;
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FlakeRef originalRef;
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std::string description;
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SourceInfo sourceInfo;
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std::vector<FlakeRef> inputs;
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std::map<FlakeAlias, FlakeRef> nonFlakeInputs;
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std::map<FlakeId, FlakeInput> inputs;
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Value * vOutputs; // FIXME: gc
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unsigned int edition;
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@ -73,14 +79,6 @@ struct Flake
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: originalRef(origRef), sourceInfo(sourceInfo) {};
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};
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struct NonFlake
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{
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FlakeRef originalRef;
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SourceInfo sourceInfo;
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NonFlake(const FlakeRef & origRef, const SourceInfo & sourceInfo)
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: originalRef(origRef), sourceInfo(sourceInfo) {};
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};
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Flake getFlake(EvalState &, const FlakeRef &);
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/* If 'allowLookup' is true, then resolve 'flakeRef' using the
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@ -108,7 +106,7 @@ ResolvedFlake resolveFlake(EvalState &, const FlakeRef &, HandleLockFile);
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void callFlake(EvalState & state,
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const Flake & flake,
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const FlakeInputs & inputs,
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const LockedInputs & inputs,
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Value & v);
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void callFlake(EvalState & state,
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@ -3,83 +3,57 @@
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namespace nix::flake {
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AbstractInput::AbstractInput(const nlohmann::json & json)
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: ref(json["uri"])
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LockedInput::LockedInput(const nlohmann::json & json)
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: LockedInputs(json)
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, ref(json["uri"])
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, narHash(Hash((std::string) json["narHash"]))
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{
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if (!ref.isImmutable())
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throw Error("lockfile contains mutable flakeref '%s'", ref);
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}
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nlohmann::json AbstractInput::toJson() const
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nlohmann::json LockedInput::toJson() const
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{
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nlohmann::json json;
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auto json = LockedInputs::toJson();
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json["uri"] = ref.to_string();
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json["narHash"] = narHash.to_string(SRI);
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return json;
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}
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Path AbstractInput::computeStorePath(Store & store) const
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Path LockedInput::computeStorePath(Store & store) const
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{
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return store.makeFixedOutputPath(true, narHash, "source");
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}
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FlakeInput::FlakeInput(const nlohmann::json & json)
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: FlakeInputs(json)
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, AbstractInput(json)
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, id(json["id"])
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LockedInputs::LockedInputs(const nlohmann::json & json)
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{
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}
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nlohmann::json FlakeInput::toJson() const
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{
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auto json = FlakeInputs::toJson();
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json.update(AbstractInput::toJson());
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json["id"] = id;
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return json;
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}
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FlakeInputs::FlakeInputs(const nlohmann::json & json)
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{
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for (auto & i : json["nonFlakeInputs"].items())
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nonFlakeInputs.insert_or_assign(i.key(), NonFlakeInput(i.value()));
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for (auto & i : json["inputs"].items())
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flakeInputs.insert_or_assign(i.key(), FlakeInput(i.value()));
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inputs.insert_or_assign(i.key(), LockedInput(i.value()));
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}
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nlohmann::json FlakeInputs::toJson() const
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nlohmann::json LockedInputs::toJson() const
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{
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nlohmann::json json;
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{
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auto j = nlohmann::json::object();
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for (auto & i : nonFlakeInputs)
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for (auto & i : inputs)
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j[i.first] = i.second.toJson();
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json["nonFlakeInputs"] = std::move(j);
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}
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{
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auto j = nlohmann::json::object();
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for (auto & i : flakeInputs)
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j[i.first.to_string()] = i.second.toJson();
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json["inputs"] = std::move(j);
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}
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return json;
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}
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bool FlakeInputs::isDirty() const
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bool LockedInputs::isDirty() const
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{
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for (auto & i : flakeInputs)
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for (auto & i : inputs)
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if (i.second.ref.isDirty() || i.second.isDirty()) return true;
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for (auto & i : nonFlakeInputs)
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if (i.second.ref.isDirty()) return true;
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return false;
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}
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nlohmann::json LockFile::toJson() const
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{
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auto json = FlakeInputs::toJson();
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auto json = LockedInputs::toJson();
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json["version"] = 2;
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return json;
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}
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@ -10,47 +10,15 @@ class Store;
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namespace nix::flake {
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/* Common lock file information about a flake input, namely the
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immutable ref and the NAR hash. */
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struct AbstractInput
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{
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FlakeRef ref;
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Hash narHash;
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AbstractInput(const FlakeRef & flakeRef, const Hash & narHash)
|
||||
: ref(flakeRef), narHash(narHash)
|
||||
{
|
||||
assert(ref.isImmutable());
|
||||
};
|
||||
|
||||
AbstractInput(const nlohmann::json & json);
|
||||
|
||||
nlohmann::json toJson() const;
|
||||
|
||||
Path computeStorePath(Store & store) const;
|
||||
};
|
||||
|
||||
/* Lock file information about a non-flake input. */
|
||||
struct NonFlakeInput : AbstractInput
|
||||
{
|
||||
using AbstractInput::AbstractInput;
|
||||
|
||||
bool operator ==(const NonFlakeInput & other) const
|
||||
{
|
||||
return ref == other.ref && narHash == other.narHash;
|
||||
}
|
||||
};
|
||||
|
||||
struct FlakeInput;
|
||||
struct LockedInput;
|
||||
|
||||
/* Lock file information about the dependencies of a flake. */
|
||||
struct FlakeInputs
|
||||
struct LockedInputs
|
||||
{
|
||||
std::map<FlakeRef, FlakeInput> flakeInputs;
|
||||
std::map<FlakeAlias, NonFlakeInput> nonFlakeInputs;
|
||||
std::map<FlakeId, LockedInput> inputs;
|
||||
|
||||
FlakeInputs() {};
|
||||
FlakeInputs(const nlohmann::json & json);
|
||||
LockedInputs() {};
|
||||
LockedInputs(const nlohmann::json & json);
|
||||
|
||||
nlohmann::json toJson() const;
|
||||
|
||||
|
|
@ -60,47 +28,48 @@ struct FlakeInputs
|
|||
};
|
||||
|
||||
/* Lock file information about a flake input. */
|
||||
struct FlakeInput : FlakeInputs, AbstractInput
|
||||
struct LockedInput : LockedInputs
|
||||
{
|
||||
FlakeId id;
|
||||
FlakeRef ref;
|
||||
Hash narHash;
|
||||
|
||||
FlakeInput(const FlakeId & id, const FlakeRef & flakeRef, const Hash & narHash)
|
||||
: AbstractInput(flakeRef, narHash), id(id) {};
|
||||
LockedInput(const FlakeRef & ref, const Hash & narHash)
|
||||
: ref(ref), narHash(narHash)
|
||||
{
|
||||
assert(ref.isImmutable());
|
||||
};
|
||||
|
||||
FlakeInput(const nlohmann::json & json);
|
||||
LockedInput(const nlohmann::json & json);
|
||||
|
||||
bool operator ==(const FlakeInput & other) const
|
||||
bool operator ==(const LockedInput & other) const
|
||||
{
|
||||
return
|
||||
id == other.id
|
||||
&& ref == other.ref
|
||||
ref == other.ref
|
||||
&& narHash == other.narHash
|
||||
&& flakeInputs == other.flakeInputs
|
||||
&& nonFlakeInputs == other.nonFlakeInputs;
|
||||
&& inputs == other.inputs;
|
||||
}
|
||||
|
||||
nlohmann::json toJson() const;
|
||||
|
||||
Path computeStorePath(Store & store) const;
|
||||
};
|
||||
|
||||
/* An entire lock file. Note that this cannot be a FlakeInput for the
|
||||
top-level flake, because then the lock file would need to contain
|
||||
the hash of the top-level flake, but committing the lock file
|
||||
would invalidate that hash. */
|
||||
struct LockFile : FlakeInputs
|
||||
struct LockFile : LockedInputs
|
||||
{
|
||||
bool operator ==(const LockFile & other) const
|
||||
{
|
||||
return
|
||||
flakeInputs == other.flakeInputs
|
||||
&& nonFlakeInputs == other.nonFlakeInputs;
|
||||
return inputs == other.inputs;
|
||||
}
|
||||
|
||||
LockFile() {}
|
||||
LockFile(const nlohmann::json & json) : FlakeInputs(json) {}
|
||||
LockFile(FlakeInput && dep)
|
||||
LockFile(const nlohmann::json & json) : LockedInputs(json) {}
|
||||
LockFile(LockedInput && dep)
|
||||
{
|
||||
flakeInputs = std::move(dep.flakeInputs);
|
||||
nonFlakeInputs = std::move(dep.nonFlakeInputs);
|
||||
inputs = std::move(dep.inputs);
|
||||
}
|
||||
|
||||
nlohmann::json toJson() const;
|
||||
|
|
|
|||
|
|
@ -31,7 +31,6 @@ GitInfo exportGit(ref<Store> store, std::string uri,
|
|||
// or revision is given, then allow the use of an unclean working
|
||||
// tree.
|
||||
if (!ref && !rev && isLocal) {
|
||||
|
||||
bool clean = true;
|
||||
|
||||
try {
|
||||
|
|
|
|||
|
|
@ -217,25 +217,20 @@ void makeFlakeClosureGCRoot(Store & store,
|
|||
assert(store.isValidPath(resFlake.flake.sourceInfo.storePath));
|
||||
closure.insert(resFlake.flake.sourceInfo.storePath);
|
||||
|
||||
std::queue<std::reference_wrapper<const flake::FlakeInputs>> queue;
|
||||
std::queue<std::reference_wrapper<const flake::LockedInputs>> queue;
|
||||
queue.push(resFlake.lockFile);
|
||||
|
||||
while (!queue.empty()) {
|
||||
const flake::FlakeInputs & flake = queue.front();
|
||||
const flake::LockedInputs & flake = queue.front();
|
||||
queue.pop();
|
||||
/* Note: due to lazy fetching, these paths might not exist
|
||||
yet. */
|
||||
for (auto & dep : flake.flakeInputs) {
|
||||
for (auto & dep : flake.inputs) {
|
||||
auto path = dep.second.computeStorePath(store);
|
||||
if (store.isValidPath(path))
|
||||
closure.insert(path);
|
||||
queue.push(dep.second);
|
||||
}
|
||||
for (auto & dep : flake.nonFlakeInputs) {
|
||||
auto path = dep.second.computeStorePath(store);
|
||||
if (store.isValidPath(path))
|
||||
closure.insert(path);
|
||||
}
|
||||
}
|
||||
|
||||
if (closure.empty()) return;
|
||||
|
|
|
|||
|
|
@ -240,10 +240,13 @@ cat > $flake3Dir/flake.nix <<EOF
|
|||
|
||||
edition = 201909;
|
||||
|
||||
inputs = [ "flake1" "flake2" ];
|
||||
|
||||
nonFlakeInputs = {
|
||||
nonFlake = "$nonFlakeDir";
|
||||
inputs = {
|
||||
flake1 = {};
|
||||
flake2 = {};
|
||||
nonFlake = {
|
||||
uri = "$nonFlakeDir";
|
||||
flake = false;
|
||||
};
|
||||
};
|
||||
|
||||
description = "Fnord";
|
||||
|
|
@ -306,23 +309,24 @@ cat > $flake3Dir/flake.nix <<EOF
|
|||
|
||||
edition = 201909;
|
||||
|
||||
inputs = [ "flake1" "flake2" ];
|
||||
|
||||
nonFlakeInputs = {
|
||||
nonFlake = "$nonFlakeDir";
|
||||
inputs = {
|
||||
nonFlake = {
|
||||
uri = "$nonFlakeDir";
|
||||
flake = false;
|
||||
};
|
||||
};
|
||||
|
||||
description = "Fnord";
|
||||
|
||||
outputs = inputs: rec {
|
||||
packages.sth = inputs.flake1.packages.foo;
|
||||
outputs = { self, flake1, flake2, nonFlake }: rec {
|
||||
packages.sth = flake1.packages.foo;
|
||||
packages.fnord =
|
||||
with import ./config.nix;
|
||||
mkDerivation {
|
||||
inherit system;
|
||||
name = "fnord";
|
||||
buildCommand = ''
|
||||
cat \${inputs.nonFlake}/README.md > \$out
|
||||
cat \${nonFlake}/README.md > \$out
|
||||
'';
|
||||
};
|
||||
};
|
||||
|
|
|
|||
Loading…
Reference in a new issue