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Merge pull request #13400 from NixOS/fix-deep-overrides

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Fix deep flake input overrides
This commit is contained in:
Eelco Dolstra 2025-07-01 19:34:55 +02:00 • committed by GitHub
commit 5879ab1577
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GPG key ID: B5690EEEBB952194
2 changed files with 93 additions and 14 deletions
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36
src/libflake/flake.cc
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@ -101,7 +101,6 @@ static void parseFlakeInputAttr(
static FlakeInput parseFlakeInput(
EvalState & state,
std::string_view inputName,
Value * value,
const PosIdx pos,
const InputAttrPath & lockRootAttrPath,
@ -171,8 +170,8 @@ static FlakeInput parseFlakeInput(
input.ref = parseFlakeRef(state.fetchSettings, *url, {}, true, input.isFlake, true);
}
if (!input.follows && !input.ref)
input.ref = FlakeRef::fromAttrs(state.fetchSettings, {{"type", "indirect"}, {"id", std::string(inputName)}});
if (input.ref && input.follows)
throw Error("flake input has both a flake reference and a follows attribute, at %s", state.positions[pos]);
return input;
}
@ -201,7 +200,6 @@ static std::pair<std::map<FlakeId, FlakeInput>, fetchers::Attrs> parseFlakeInput
} else {
inputs.emplace(inputName,
parseFlakeInput(state,
inputName,
inputAttr.value,
inputAttr.pos,
lockRootAttrPath,
@ -483,18 +481,27 @@ LockedFlake lockFlake(
/* Get the overrides (i.e. attributes of the form
'inputs.nixops.inputs.nixpkgs.url = ...'). */
for (auto & [id, input] : flakeInputs) {
std::function<void(const FlakeInput & input, const InputAttrPath & prefix)> addOverrides;
addOverrides = [&](const FlakeInput & input, const InputAttrPath & prefix)
{
for (auto & [idOverride, inputOverride] : input.overrides) {
auto inputAttrPath(inputAttrPathPrefix);
inputAttrPath.push_back(id);
auto inputAttrPath(prefix);
inputAttrPath.push_back(idOverride);
overrides.emplace(inputAttrPath,
OverrideTarget {
.input = inputOverride,
.sourcePath = sourcePath,
.parentInputAttrPath = inputAttrPathPrefix
});
if (inputOverride.ref || inputOverride.follows)
overrides.emplace(inputAttrPath,
OverrideTarget {
.input = inputOverride,
.sourcePath = sourcePath,
.parentInputAttrPath = inputAttrPathPrefix
});
addOverrides(inputOverride, inputAttrPath);
}
};
for (auto & [id, input] : flakeInputs) {
auto inputAttrPath(inputAttrPathPrefix);
inputAttrPath.push_back(id);
addOverrides(input, inputAttrPath);
}
/* Check whether this input has overrides for a
@ -550,7 +557,8 @@ LockedFlake lockFlake(
continue;
}
assert(input.ref);
if (!input.ref)
input.ref = FlakeRef::fromAttrs(state.fetchSettings, {{"type", "indirect"}, {"id", std::string(id)}});
auto overriddenParentPath =
input.ref->input.isRelative()