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Fix resolving indirect flakerefs

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This commit is contained in:
Eelco Dolstra 2022-05-13 14:41:42 +02:00
parent a0ed002ba9
commit de35e2d3b4
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GPG key ID: 8170B4726D7198DE
2 changed files with 20 additions and 13 deletions
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32
src/libexpr/flake/flake.cc
View file

@ -78,7 +78,6 @@ static void forceTrivialValue(EvalState & state, Value & value, const PosIdx pos
state.forceValue(value, pos);
}
static void expectType(EvalState & state, ValueType type,
Value & value, const PosIdx pos)
{
@ -202,15 +201,16 @@ static std::map<FlakeId, FlakeInput> parseFlakeInputs(
static Flake readFlake(
EvalState & state,
const FlakeRef & lockedRef,
const FlakeRef & originalRef,
const FlakeRef & resolvedRef,
InputAccessor & accessor,
const InputPath & lockRootPath)
{
auto flakeDir = canonPath("/" + lockedRef.subdir);
auto flakeDir = canonPath("/" + resolvedRef.subdir);
SourcePath flakePath{accessor, canonPath(flakeDir + "/flake.nix")};
if (!flakePath.pathExists())
throw Error("source tree referenced by '%s' does not contain a file named '%s'", lockedRef, flakePath.path);
throw Error("source tree referenced by '%s' does not contain a file named '%s'", resolvedRef, flakePath.path);
Value vInfo;
state.evalFile(flakePath, vInfo, true);
@ -218,10 +218,9 @@ static Flake readFlake(
expectType(state, nAttrs, vInfo, state.positions.add({flakePath.to_string(), foFile}, 0, 0));
Flake flake {
// FIXME
.originalRef = lockedRef,
.resolvedRef = lockedRef,
.lockedRef = lockedRef,
.originalRef = originalRef,
.resolvedRef = resolvedRef,
.lockedRef = resolvedRef, // FIXME
.path = flakePath,
};
@ -250,7 +249,7 @@ static Flake readFlake(
}
} else
throw Error("flake '%s' lacks attribute 'outputs'", lockedRef);
throw Error("flake '%s' lacks attribute 'outputs'", resolvedRef);
auto sNixConfig = state.symbols.create("nixConfig");
@ -299,7 +298,7 @@ static Flake readFlake(
attr.name != sOutputs &&
attr.name != sNixConfig)
throw Error("flake '%s' has an unsupported attribute '%s', at %s",
lockedRef, state.symbols[attr.name], state.positions[attr.pos]);
resolvedRef, state.symbols[attr.name], state.positions[attr.pos]);
}
return flake;
@ -312,10 +311,17 @@ static Flake getFlake(
FlakeCache & flakeCache,
const InputPath & lockRootPath)
{
// FIXME: resolve
auto [accessor, input] = originalRef.input.lazyFetch(state.store);
auto resolvedRef = originalRef;
return readFlake(state, originalRef, state.registerAccessor(accessor), lockRootPath);
if (!originalRef.input.isDirect()) {
if (!allowLookup)
throw Error("'%s' is an indirect flake reference, but registry lookups are not allowed", originalRef);
resolvedRef = originalRef.resolve(state.store);
}
auto [accessor, input] = resolvedRef.input.lazyFetch(state.store);
return readFlake(state, originalRef, resolvedRef, state.registerAccessor(accessor), lockRootPath);
}
Flake getFlake(EvalState & state, const FlakeRef & originalRef, bool allowLookup, FlakeCache & flakeCache)

1
src/libfetchers/indirect.cc
View file

@ -96,6 +96,7 @@ struct IndirectInputScheme : InputScheme
std::pair<StorePath, Input> fetch(ref<Store> store, const Input & input) override
{
abort();
throw Error("indirect input '%s' cannot be fetched directly", input.to_string());
}
};