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Make unsupported flake attributes a fatal error

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This commit is contained in:
Eelco Dolstra 2019-05-29 15:12:22 +02:00
parent 6636808e90
commit c356d034f3
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GPG key ID: 8170B4726D7198DE
1 changed files with 23 additions and 4 deletions
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27
src/libexpr/primops/flake.cc
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@ -327,7 +327,9 @@ Flake getFlake(EvalState & state, const FlakeRef & flakeRef, bool impureIsAllowe
state.forceAttrs(vInfo); state.forceAttrs(vInfo);
if (auto epoch = vInfo.attrs->get(state.symbols.create("epoch"))) { auto sEpoch = state.symbols.create("epoch");
if (auto epoch = vInfo.attrs->get(sEpoch)) {
flake.epoch = state.forceInt(*(**epoch).value, *(**epoch).pos); flake.epoch = state.forceInt(*(**epoch).value, *(**epoch).pos);
if (flake.epoch > 2019) if (flake.epoch > 2019)
throw Error("flake '%s' requires unsupported epoch %d; please upgrade Nix", flakeRef, flake.epoch); throw Error("flake '%s' requires unsupported epoch %d; please upgrade Nix", flakeRef, flake.epoch);
@ -342,14 +344,18 @@ Flake getFlake(EvalState & state, const FlakeRef & flakeRef, bool impureIsAllowe
if (auto description = vInfo.attrs->get(state.sDescription)) if (auto description = vInfo.attrs->get(state.sDescription))
flake.description = state.forceStringNoCtx(*(**description).value, *(**description).pos); flake.description = state.forceStringNoCtx(*(**description).value, *(**description).pos);
if (auto requires = vInfo.attrs->get(state.symbols.create("requires"))) { auto sRequires = state.symbols.create("requires");
if (auto requires = vInfo.attrs->get(sRequires)) {
state.forceList(*(**requires).value, *(**requires).pos); state.forceList(*(**requires).value, *(**requires).pos);
for (unsigned int n = 0; n < (**requires).value->listSize(); ++n) for (unsigned int n = 0; n < (**requires).value->listSize(); ++n)
flake.requires.push_back(FlakeRef(state.forceStringNoCtx( flake.requires.push_back(FlakeRef(state.forceStringNoCtx(
*(**requires).value->listElems()[n], *(**requires).pos))); *(**requires).value->listElems()[n], *(**requires).pos)));
} }
if (std::optional<Attr *> nonFlakeRequires = vInfo.attrs->get(state.symbols.create("nonFlakeRequires"))) { auto sNonFlakeRequires = state.symbols.create("nonFlakeRequires");
if (std::optional<Attr *> nonFlakeRequires = vInfo.attrs->get(sNonFlakeRequires)) {
state.forceAttrs(*(**nonFlakeRequires).value, *(**nonFlakeRequires).pos); state.forceAttrs(*(**nonFlakeRequires).value, *(**nonFlakeRequires).pos);
for (Attr attr : *(*(**nonFlakeRequires).value).attrs) { for (Attr attr : *(*(**nonFlakeRequires).value).attrs) {
std::string myNonFlakeUri = state.forceStringNoCtx(*attr.value, *attr.pos); std::string myNonFlakeUri = state.forceStringNoCtx(*attr.value, *attr.pos);
@ -358,12 +364,25 @@ Flake getFlake(EvalState & state, const FlakeRef & flakeRef, bool impureIsAllowe
} }
} }
if (auto provides = vInfo.attrs->get(state.symbols.create("provides"))) { auto sProvides = state.symbols.create("provides");
if (auto provides = vInfo.attrs->get(sProvides)) {
state.forceFunction(*(**provides).value, *(**provides).pos); state.forceFunction(*(**provides).value, *(**provides).pos);
flake.vProvides = (**provides).value; flake.vProvides = (**provides).value;
} else } else
throw Error("flake '%s' lacks attribute 'provides'", flakeRef); throw Error("flake '%s' lacks attribute 'provides'", 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)
throw Error("flake '%s' has an unsupported attribute '%s', at %s",
flakeRef, attr.name, *attr.pos);
}
return flake; return flake;
} }