reproducible Debian: mmdebstrap job: show results in a more human friendly way

Signed-off-by: Holger Levsen <holger@layer-acht.org>

bin/reproducible_mmdebstrap.sh

@@ -44,17 +44,24 @@ sudo mmdebstrap $SUITE > $BUILDDIR/b1/mmdebstrap/${SUITE}.tar
 output_echo "Running mmdebstrap $SUITE for the second run."
 sudo mmdebstrap $SUITE > $BUILDDIR/b2/mmdebstrap/${SUITE}.tar
 
+# show sha256sum results
 mv $BUILDDIR/b1 $BUILDDIR/b2 $RESULTSDIR/
+sha256sum $RESULTSDIR/b1/mmdebstrap/${SUITE}.tar $RESULTSDIR/b2/mmdebstrap/${SUITE}.tar
 
-# Run diffoscope on the images
-output_echo "Calling diffoscope on the results."
-TIMEOUT="240m"
-DIFFOSCOPE="$(schroot --directory /tmp -c chroot:jenkins-reproducible-${DBDSUITE}-diffoscope diffoscope -- --version 2>&1)"
-TMPDIR=${RESULTSDIR}
-call_diffoscope mmdebstrap ${SUITE}.tar
+# show human readable results
+if diff $RESULTSDIR/b1/mmdebstrap/${SUITE}.tar RESULTSDIR/b2/mmdebstrap/${SUITE}.tar ; then
+	echo "Success: mmdebstrap of $SUITE is reproducible today."
+else
+	echo "Warning: mmdebstrap of $SUITE is not reproducible."
+	# Run diffoscope on the images
+	output_echo "Calling diffoscope on the results."
+	TIMEOUT="240m"
+	DIFFOSCOPE="$(schroot --directory /tmp -c chroot:jenkins-reproducible-${DBDSUITE}-diffoscope diffoscope -- --version 2>&1)"
+	TMPDIR=${RESULTSDIR}
+	call_diffoscope mmdebstrap ${SUITE}.tar
+fi
 
 cleanup success
-
 # Turn off the trap
 trap - INT TERM EXIT