From 680ab6f83def2b636200204542ca352631a46f85 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Mon, 23 Jul 2012 15:48:30 -0400
Subject: Garbage collect unused links in /nix/store/.links

Incremental optimisation requires creating links in /nix/store/.links
to all files in the store.  However, this means that if we delete a
store path, no files are actually deleted because links in
/nix/store/.links still exists.  So we need to check /nix/store/.links
for files with a link count of 1 and delete them.
---
 src/libstore/local-store.hh | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/libstore/local-store.hh')

diff --git a/src/libstore/local-store.hh b/src/libstore/local-store.hh
index 7d30a2d408ae..50910f353ad1 100644
--- a/src/libstore/local-store.hh
+++ b/src/libstore/local-store.hh
@@ -264,6 +264,8 @@ private:
         
     int openGCLock(LockType lockType);
     
+    void removeUnusedLinks();
+
     void startSubstituter(const Path & substituter,
         RunningSubstituter & runningSubstituter);
 
-- 
cgit 1.4.1