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mention nix-store --query --roots when a path cannot be deleted

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This commit is contained in:
Bob van der Linden 2018-08-08 21:21:21 +02:00
parent 103ad1598c
commit 58a85fa462
1 changed files with 5 additions and 1 deletions
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6
src/libstore/gc.cc
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@ -791,7 +791,11 @@ void LocalStore::collectGarbage(const GCOptions & options, GCResults & results)
assertStorePath(i);
tryToDelete(state, i);
if (state.dead.find(i) == state.dead.end())
throw Error(format("cannot delete path '%1%' since it is still alive") % i);
throw Error(format(
"cannot delete path '%1%' since it is still alive. "
"To find out why use: "
"nix-store --query --roots"
) % i);
}
} else if (options.maxFreed > 0) {