1 files changed, 10 insertions, 0 deletions
diff --git a/corepkgs/fetchurl/fetchurl.sh.in b/corepkgs/fetchurl/fetchurl.sh.in
new file mode 100644
index 000000000000..dc92c7ee50d8
--- /dev/null
+++ b/corepkgs/fetchurl/fetchurl.sh.in
@@ -0,0 +1,10 @@
+#! /bin/sh
+
+echo "downloading $url into $out..."
+@wget@ "$url" -O "$out" || exit 1
+
+actual=$(@bindir@/nix-hash --flat $out)
+if ! test "$actual" == "$md5"; then
+    echo "hash is $actual, expected $md5"
+    exit 1
+fi