[Reproducible-builds] Bug#792949: chimera2: please make the build reproducible

[Maria Valentina Marin]

Source: chimera2
Version: 2.0a19-8
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-builds at lists.alioth.debian.org

Hi!

While working on the “reproducible builds” effort [1], we have noticed
that chimera2 could not be built reproducibly.

The attached patch sets the mtimes of all files which are modified
during the built to the date of the last changelog entry in order to
produce files with reproducible metadata.

Cheers,
akira

[1]: https://wiki.debian.org/ReproducibleBuilds


-------------- next part --------------
diff -u chimera2-2.0a19/debian/rules chimera2-2.0a19/debian/rules
--- chimera2-2.0a19/debian/rules
+++ chimera2-2.0a19/debian/rules
@@ -9,6 +9,8 @@
 
 package=chimera2
 
+BUILD_DATE := $(shell dpkg-parsechangelog --show-field Date)
+
 ifneq (,$(findstring nostrip,$(DEB_BUILD_OPTIONS)))
 	INSTALLOPT=
 else
@@ -63,6 +65,8 @@
 	dpkg-gencontrol -isp
 	chown -R root.root debian/tmp
 	chmod -R g-ws debian/tmp
+	find debian/tmp -newermt '$(BUILD_DATE)' -print0 | \
+		xargs -0r touch --no-dereference --date='$(BUILD_DATE)'
 	dpkg --build debian/tmp ..
 
 define checkdir
diff -u chimera2-2.0a19/debian/changelog chimera2-2.0a19/debian/changelog
--- chimera2-2.0a19/debian/changelog
+++ chimera2-2.0a19/debian/changelog
@@ -1,3 +1,10 @@
+chimera2 (2.0a19-8.1) UNRELEASED; urgency=medium
+
+  * Non-maintainer upload.
+  * Fix mtimes before building binary packages to produce reproducible output
+
+ -- akira <marivalenm at gmail.com>  Fri, 17 Jul 2015 16:05:52 +0200
+
 chimera2 (2.0a19-8) unstable; urgency=low
 
   * Fix segfault with font handling - Thanks to Flos Lonicera for patch