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authorEelco Dolstra <e.dolstra@tudelft.nl>2005-02-14T14·16+0000
committerEelco Dolstra <e.dolstra@tudelft.nl>2005-02-14T14·16+0000
commita04a5de8f70e5c34be0f0f7ea3c6f2cd50d56982 (patch)
treeaff538892411417d4eb91a4820d761522b945288 /src
parent6a8ef36fe62c1b53572b0cf64685ece6190b22e5 (diff)
* Implement the `gc-keep-derivations' global configuretion flag.
Diffstat (limited to 'src')
-rw-r--r--src/libstore/gc.cc15
1 files changed, 14 insertions, 1 deletions
diff --git a/src/libstore/gc.cc b/src/libstore/gc.cc
index 98b863314ac9..e0de6a968131 100644
--- a/src/libstore/gc.cc
+++ b/src/libstore/gc.cc
@@ -306,7 +306,10 @@ void collectGarbage(GCAction action, PathSet & result)
 {
     result.clear();
 
-    bool gcKeepOutputs = queryBoolSetting("gc-keep-outputs", false);
+    bool gcKeepOutputs =
+        queryBoolSetting("gc-keep-outputs", false);
+    bool gcKeepDerivations =
+        queryBoolSetting("gc-keep-derivations", true);
 
     /* Acquire the global GC root.  This prevents
        a) New roots from being added.
@@ -330,6 +333,16 @@ void collectGarbage(GCAction action, PathSet & result)
     for (PathSet::const_iterator i = roots.begin(); i != roots.end(); ++i)
         computeFSClosure(canonPath(*i), livePaths);
 
+    if (gcKeepDerivations) {
+        for (PathSet::iterator i = livePaths.begin();
+             i != livePaths.end(); ++i)
+        {
+            Path deriver = queryDeriver(noTxn, *i);
+            if (deriver != "")
+                computeFSClosure(deriver, livePaths);
+        }
+    }
+
     if (gcKeepOutputs) {
         /* Hmz, identical to storePathRequisites in nix-store. */
         for (PathSet::iterator i = livePaths.begin();