From 8a431e13b5873295f7a6714fe63623f52daea743 Mon Sep 17 00:00:00 2001
From: Antoine Eiche <lewo@abesis.fr>
Date: Wed, 26 Jul 2017 21:49:35 +0200
Subject: [PATCH] docker: Remove ./ pattern when packing an image

Elements in images tar.gz generated by docker don't start by './'.
---
 pkgs/build-support/docker/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/build-support/docker/default.nix b/pkgs/build-support/docker/default.nix
index 0c85941b6a17..e29970280245 100644
--- a/pkgs/build-support/docker/default.nix
+++ b/pkgs/build-support/docker/default.nix
@@ -505,7 +505,7 @@ rec {
         chmod -R a-w image
 
         echo "Cooking the image..."
-        tar -C image --mtime="@$SOURCE_DATE_EPOCH" --owner=0 --group=0 -c . | pigz -nT > $out
+        tar -C image --mtime="@$SOURCE_DATE_EPOCH" --owner=0 --group=0 --xform s:'./':: -c . | pigz -nT > $out
 
         echo "Finished."
       '';