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* Garbage collector fix: allow deletion of paths that have invalid

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(but substitutable) referers.
This commit is contained in:
Eelco Dolstra 2005-04-12 10:51:00 +00:00
parent d5219a351a
commit f3660b1c8c
1 changed files with 4 additions and 4 deletions
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8
src/libstore/store.cc
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@ -737,10 +737,10 @@ void deleteFromStore(const Path & _path)
Transaction txn(nixDB);
if (isValidPathTxn(txn, path)) {
PathSet referers = getReferers(txn, path);
if (referers.size() > 1 ||
(referers.size() == 1 &&
*referers.begin() != path))
throw Error(format("cannot delete path `%1%' because it is in use") % path);
for (PathSet::iterator i = referers.begin();
i != referers.end(); ++i)
if (*i != path && isValidPathTxn(txn, *i))
throw Error(format("cannot delete path `%1%' because it is in use by path `%2%'") % path % *i);
invalidatePath(txn, path);
}
txn.commit();