DerivationGoal: only retry if output closure incomplete is only problem

This commit is contained in:
Robert Hensing 2020-10-18 14:21:53 +02:00
parent ea8d32020e
commit bd9eb5c743

View file

@ -330,8 +330,13 @@ void DerivationGoal::outputsSubstitutionTried()
/* If the substitutes form an incomplete closure, then we should
build the dependencies of this derivation, but after that, we
can still use the substitutes for this derivation itself. */
if (nrIncompleteClosure > 0) retrySubstitution = true;
can still use the substitutes for this derivation itself.
If the nrIncompleteClosure != nrFailed, we have another issue as well.
In particular, it may be the case that the hole in the closure is
an output of the current derivation, which causes a loop if retried.
*/
if (nrIncompleteClosure > 0 && nrIncompleteClosure == nrFailed) retrySubstitution = true;
nrFailed = nrNoSubstituters = nrIncompleteClosure = 0;