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If gc-keep-derivations is set, only keep the actual deriver

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This prevents zillions of derivations from being kept, and fixes an
infinite recursion in the garbage collector (due to an obscure cycle
that can occur with fixed-output derivations).
This commit is contained in:
Eelco Dolstra 2012-12-19 15:33:09 +01:00
parent fbf0b2fa45
commit e775d4d84f
1 changed files with 1 additions and 1 deletions
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2
src/libstore/gc.cc
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@ -473,7 +473,7 @@ bool LocalStore::tryToDelete(GCState & state, const Path & path)
if (state.gcKeepDerivations && isDerivation(p)) { if (state.gcKeepDerivations && isDerivation(p)) {
PathSet outputs = queryDerivationOutputs(p); PathSet outputs = queryDerivationOutputs(p);
foreach (PathSet::iterator, i, outputs) foreach (PathSet::iterator, i, outputs)
if (isValidPath(*i)) todo.insert(*i); if (isValidPath(*i) && queryDeriver(*i) == p) todo.insert(*i);
} }
/* If gc-keep-outputs is set, then don't delete this path /* If gc-keep-outputs is set, then don't delete this path
if there are derivers of this path that are not if there are derivers of this path that are not