From 829af22759b8a99c3b44697365390a945f3acc04 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Tue, 10 Jun 2014 13:30:09 +0200
Subject: Print a warning when loading a large path into memory

I.e. if you have a derivation with

  src = ./huge-directory;

you'll get a warning that this is not a good idea.
---
 src/libstore/remote-store.cc | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/libstore')

diff --git a/src/libstore/remote-store.cc b/src/libstore/remote-store.cc
index 461920693..177b8e7af 100644
--- a/src/libstore/remote-store.cc
+++ b/src/libstore/remote-store.cc
@@ -402,7 +402,10 @@ Path RemoteStore::addToStore(const Path & _srcPath,
     writeInt((hashAlgo == htSHA256 && recursive) ? 0 : 1, to);
     writeInt(recursive ? 1 : 0, to);
     writeString(printHashType(hashAlgo), to);
+    to.written = 0;
+    to.warn = true;
     dumpPath(srcPath, to, filter);
+    to.warn = false;
     processStderr();
     return readStorePath(from);
 }
-- 
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