* When finding live paths, the deriver need not be valid.

2005-03-25 14:31:12 +00:00 · 2005-03-25 14:31:12 +00:00 · 298dd487bb
parent ebe342c9c1
commit 298dd487bb
1 changed files with 4 additions and 1 deletions
--- a/src/libstore/gc.cc
+++ b/src/libstore/gc.cc
@ -333,8 +333,11 @@ void collectGarbage(GCAction action, PathSet & result)
        for (PathSet::iterator i = livePaths.begin();
             i != livePaths.end(); ++i)
        {
+            /* Note that the deriver need not be valid (e.g., if we
+               previously ran the collector with `gcKeepDerivations'
+               turned off). */
            Path deriver = queryDeriver(noTxn, *i);
-            if (deriver != "")
+            if (deriver != "" && isValidPath(deriver))
                computeFSClosure(deriver, livePaths);
        }
    }