From 58d53ea347d2c923d781aed450bbb922b3888210 Mon Sep 17 00:00:00 2001
From: Hans-Christoph Steiner <hans@eds.org>
Date: Thu, 14 Jan 2016 20:59:17 +0100
Subject: [PATCH] make-release-build: use strip-nondeterminism to get
 reproducible build

strip-nondeterminism sets the timestamps in the zip based on the timestamp
of the git commit.
---
 make-release-build | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/make-release-build b/make-release-build
index 3c18ce03..2d5947a7 100755
--- a/make-release-build
+++ b/make-release-build
@@ -71,6 +71,14 @@ faketime -f "$TIMESTAMP_5" ant release
 
 apk=$projectroot/bin/$projectname-v$describe.apk
 
+# standardize timestamps in ZIP headers, requires strip-nondeterminism 0.014
+if which strip-nondeterminism > /dev/null; then
+    strip-nondeterminism -t zip -T $(git log -n1 --format=format:%at) $apk
+fi
+
+# echo the checksum to build logs
+sha256sum $apk
+
 if which gpg > /dev/null; then
     if [ -z "`gpg --list-secret-keys`" ]; then
         echo "No GPG secret keys found, not signing APK"