From 5d250ad1eae704106c7030ab984c929d7aef8f8f Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Wed, 19 Nov 2008 16:26:34 +0000
Subject: [PATCH] * nix-store --dump-db: be more streamy.

---
 src/nix-store/nix-store.cc | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/nix-store/nix-store.cc b/src/nix-store/nix-store.cc
index 481e26cdb..63635b52d 100644
--- a/src/nix-store/nix-store.cc
+++ b/src/nix-store/nix-store.cc
@@ -417,9 +417,9 @@ static void opDumpDB(Strings opFlags, Strings opArgs)
     if (!opArgs.empty())
         throw UsageError("no arguments expected");
     PathSet validPaths = store->queryValidPaths();
-    /* !!! this isn't streamy; makeValidityRegistration() builds a
-       potentially gigantic string. */
-    cout << makeValidityRegistration(validPaths, true, true);
+    foreach (PathSet::iterator, i, validPaths) {
+        cout << makeValidityRegistration(singleton<PathSet>(*i), true, true);
+    }
 }