From 4c8db4e047c8a6bda12534fb82562ff6b6c11d1f Mon Sep 17 00:00:00 2001
From: Tristan Sloughter <t@crashfast.com>
Date: Fri, 14 Nov 2014 16:08:12 -0600
Subject: write packages file to tmp so a lost connection doesn't mean
 corruption

---
 src/rebar_prv_update.erl | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/rebar_prv_update.erl b/src/rebar_prv_update.erl
index ce6350b..e57f19d 100644
--- a/src/rebar_prv_update.erl
+++ b/src/rebar_prv_update.erl
@@ -35,11 +35,14 @@ do(State) ->
     ?INFO("Updating package index...", []),
     try
         Url = url(State),
+        TmpDir = ec_file:insecure_mkdtemp(),
+        TmpFile = filename:join(TmpDir, "packages"),
         Home = rebar_utils:home_dir(),
         PackagesFile = filename:join([Home, ?CONFIG_DIR, "packages"]),
         filelib:ensure_dir(PackagesFile),
-        {ok, _RequestId} = httpc:request(get, {Url, []}, [], [{stream, PackagesFile}
-                                                             ,{sync, true}])
+        {ok, _RequestId} = httpc:request(get, {Url, []}, [], [{stream, TmpFile}
+                                                             ,{sync, true}]),
+        ok = ec_file:copy(TmpFile, PackagesFile)
     catch
         _:_ ->
             {error, {?MODULE, package_index_write}}
-- 
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