From 4250b641d8e8edc4cb7def9bc463c7e4ff82e144 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Fri, 11 Aug 2006 20:26:49 +0000
Subject: * `nix-store --gc --print-dead': print the total size of the store  
 objects that would be freed.

---
 src/libstore/gc.cc | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'src/libstore/gc.cc')

diff --git a/src/libstore/gc.cc b/src/libstore/gc.cc
index 01d85d4d525e..37fde29ca035 100644
--- a/src/libstore/gc.cc
+++ b/src/libstore/gc.cc
@@ -515,6 +515,15 @@ void collectGarbage(GCAction action, const PathSet & pathsToDelete,
         debug(format("dead path `%1%'") % *i);
         result.insert(*i);
 
+        /* If just returning the set of dead paths, we also return the
+           space that would be freed if we deleted them. */
+        if (action == gcReturnDead) {
+            struct stat st;
+            if (lstat(i->c_str(), &st) == -1)
+                st.st_size = 0;
+            bytesFreed += st.st_size;
+        }
+
         if (action == gcDeleteDead || action == gcDeleteSpecific) {
 
 #ifndef __CYGWIN__
-- 
cgit 1.4.1