From 2f3f4c59239b66e4ce09d2bbef39d7ce4eda44e9 Mon Sep 17 00:00:00 2001
From: Jonas Herzig <me@johni0702.de>
Date: Mon, 7 Aug 2017 19:53:46 +0200
Subject: [PATCH 2/5] Manually force reproducible archives

For some reason shading one of the libs isn't done in an
reproducible way (produces different jar whenever jar task is run).
---
 build.gradle | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/build.gradle b/build.gradle
index 468733e..91ea99a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -122,6 +122,10 @@ processResources {
     }
 }
 
+import java.util.jar.JarEntry
+import java.util.jar.JarFile
+import java.util.jar.JarOutputStream
+
 jar {
 
     configurations.shade.each { dep ->
@@ -136,6 +140,23 @@ jar {
         attributes 'group':project.group
         attributes 'Implementation-Version': project.version + getGitHash()
     }
+
+    // For some reason using gradle's reproducibleFileOrder and preserveFileTimestamps just isn't enough
+    doLast {
+        File newFile = new File(archivePath.parent, 'tmp-' + archiveName)
+        newFile.withOutputStream { fout ->
+            JarOutputStream out = new JarOutputStream(fout)
+            JarFile jf = new JarFile(archivePath)
+            jf.entries().unique {it.name}.sort {it.name}.each {
+                def copy = new JarEntry(it.name)
+                copy.time = 0
+                out.putNextEntry(copy)
+                out << jf.getInputStream(it)
+            }
+            out.finish()
+        }
+        newFile.renameTo archivePath
+    }
 }
 
 javadoc {
-- 
2.5.5