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Merge pull request #14328 from cachix/nar-substitutiongone

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Fix misleading error messages for missing NARs due to stale cache
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Eelco Dolstra 2025-10-23 16:48:31 +00:00 • committed by GitHub
commit d74177dccc
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2 changed files with 12 additions and 4 deletions
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8
src/libstore/build/substitution-goal.cc
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@ -268,16 +268,18 @@ Goal::Co PathSubstitutionGoal::tryToRun(
try {
promise.get_future().get();
} catch (std::exception & e) {
printError(e.what());
/* Cause the parent build to fail unless --fallback is given,
or the substitute has disappeared. The latter case behaves
the same as the substitute never having existed in the
first place. */
try {
throw;
} catch (SubstituteGone &) {
} catch (SubstituteGone & sg) {
/* Missing NARs are expected when they've been garbage collected.
This is not a failure, so log as a warning instead of an error. */
logWarning({.msg = sg.info().msg});
} catch (...) {
printError(e.what());
substituterFailed = true;
}