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Simplify the check for overrides on non-existent inputs

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This commit is contained in:
Eelco Dolstra 2022-07-13 13:39:06 +02:00
parent c5b84e1a16
commit 53b7407041
2 changed files with 15 additions and 36 deletions
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47
src/libexpr/flake/flake.cc
View file

@ -324,39 +324,6 @@ LockedFlake lockFlake(
std::vector<FlakeRef> parents; std::vector<FlakeRef> parents;
std::function<void(
const InputPath & inputPathPrefix,
const FlakeInputs & flakeInputs
)>
checkFollowsDeclarations;
checkFollowsDeclarations = [&](
const InputPath & inputPathPrefix,
const FlakeInputs & flakeInputs
) {
for (auto [inputPath, inputOverride] : overrides) {
auto inputPath2(inputPath);
auto follow = inputPath2.back();
inputPath2.pop_back();
if (inputPath2 == inputPathPrefix
&& flakeInputs.find(follow) == flakeInputs.end()
) {
std::string root;
for (auto & element : inputPath2) {
root.append(element);
if (element != inputPath2.back()) {
root.append(".inputs.");
}
}
warn(
"%s has a `follows'-declaration for a non-existent input %s!",
root,
follow
);
}
}
};
std::function<void( std::function<void(
const FlakeInputs & flakeInputs, const FlakeInputs & flakeInputs,
std::shared_ptr<Node> node, std::shared_ptr<Node> node,
@ -389,8 +356,6 @@ LockedFlake lockFlake(
{ {
debug("computing lock file node '%s'", printInputPath(inputPathPrefix)); debug("computing lock file node '%s'", printInputPath(inputPathPrefix));
checkFollowsDeclarations(inputPathPrefix, flakeInputs);
/* Get the overrides (i.e. attributes of the form /* Get the overrides (i.e. attributes of the form
'inputs.nixops.inputs.nixpkgs.url = ...'). */ 'inputs.nixops.inputs.nixpkgs.url = ...'). */
for (auto & [id, input] : flakeInputs) { for (auto & [id, input] : flakeInputs) {
@ -403,6 +368,18 @@ LockedFlake lockFlake(
} }
} }
/* Check whether this input has overrides for a
non-existent input. */
for (auto [inputPath, inputOverride] : overrides) {
auto inputPath2(inputPath);
auto follow = inputPath2.back();
inputPath2.pop_back();
if (inputPath2 == inputPathPrefix && !flakeInputs.count(follow))
warn(
"input '%s' has an override for a non-existent input '%s'",
printInputPath(inputPathPrefix), follow);
}
/* Go over the flake inputs, resolve/fetch them if /* Go over the flake inputs, resolve/fetch them if
necessary (i.e. if they're new or the flakeref changed necessary (i.e. if they're new or the flakeref changed
from what's in the lock file). */ from what's in the lock file). */

4
tests/flakes.sh
View file

@ -883,6 +883,7 @@ cat >$flakeFollowsA/flake.nix <<EOF
inputs.B = { inputs.B = {
url = "path:./flakeB"; url = "path:./flakeB";
inputs.invalid.follows = "D"; inputs.invalid.follows = "D";
inputs.invalid2.url = "path:./flakeD";
}; };
inputs.D.url = "path:./flakeD"; inputs.D.url = "path:./flakeD";
outputs = { ... }: {}; outputs = { ... }: {};
@ -891,4 +892,5 @@ EOF
git -C $flakeFollowsA add flake.nix git -C $flakeFollowsA add flake.nix
nix flake lock $flakeFollowsA 2>&1 | grep "warning: B has a \`follows'-declaration for a non-existant input invalid!" nix flake lock $flakeFollowsA 2>&1 | grep "warning: input 'B' has an override for a non-existent input 'invalid'"
nix flake lock $flakeFollowsA 2>&1 | grep "warning: input 'B' has an override for a non-existent input 'invalid2'"