tests: factor out dl-linux-tarball.bash

This will be also used by the reverse benchmarks.

1 files changed, 15 insertions, 0 deletions

diff --git a/tests/dl-linux-tarball.bash b/tests/dl-linux-tarball.bash
new file mode 100755
index 0000000..5fbd2b4
--- /dev/null
+++ b/tests/dl-linux-tarball.bash
@@ -0,0 +1,15 @@
+#!/bin/bash -eu
+#
+# This script checks the MD5 sum of /tmp/linux-3.0.tar.gz and downloads
+# a fresh copy if its incorrect or the file is missing.
+
+TGZ=/tmp/linux-3.0.tar.gz
+
+MD5_ACTUAL="$(md5sum $TGZ | cut -f1 -d' ')"
+MD5_WANT="f7e6591d86a9dbe123dfd1a0be054e7f"
+
+if [[ $MD5_ACTUAL != $MD5_WANT ]]; then
+	echo "Downloading linux-3.0.tar.gz"
+	wget -nv --show-progress -c -O $TGZ \
+		https://cdn.kernel.org/pub/linux/kernel/v3.0/linux-3.0.tar.gz
+fi