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Merge pull request #38 from DeterminateSystems/warn-registry-inputs

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Warn against the use of indirect flakerefs in flake inputs
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Eelco Dolstra 2025-04-25 19:58:07 +00:00 • committed by GitHub
commit bbde3da254
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1 changed files with 27 additions and 0 deletions
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27
src/libflake/flake/flake.cc
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@ -740,6 +740,29 @@ LockedFlake lockFlake(
use --no-write-lock-file. */
auto ref = (input2.ref && explicitCliOverrides.contains(inputAttrPath)) ? *input2.ref : *input.ref;
/* Warn against the use of indirect flakerefs
(but only at top-level since we don't want
to annoy users about flakes that are not
under their control). */
auto warnRegistry = [&](const FlakeRef & resolvedRef)
{
if (inputAttrPath.size() == 1 && !input.ref->input.isDirect()) {
std::ostringstream s;
printLiteralString(s, resolvedRef.to_string());
warn(
"Flake input '%1%' uses the flake registry. "
"Using the registry in flake inputs is deprecated in Determinate Nix. "
"To make your flake future-proof, add the following to '%2%':\n"
"\n"
" inputs.%1%.url = %3%;\n"
"\n"
"For more information, see: https://github.com/DeterminateSystems/nix-src/issues/37",
inputAttrPathS,
flake.path,
s.str());
}
};
if (input.isFlake) {
auto inputFlake = getInputFlake(*input.ref);
@ -771,6 +794,8 @@ LockedFlake lockFlake(
oldLock ? followsPrefix : inputAttrPath,
inputFlake.path,
false);
warnRegistry(inputFlake.resolvedRef);
}
else {
@ -783,6 +808,8 @@ LockedFlake lockFlake(
auto [accessor, resolvedRef, lockedRef] = fetchOrSubstituteTree(
state, *input.ref, useRegistries, flakeCache);
warnRegistry(resolvedRef);
// FIXME: allow input to be lazy.
auto storePath = copyInputToStore(state, lockedRef.input, input.ref->input, accessor);