[Reproducible-builds] Bug#792971: junior-doc: please make the build reproducible

[Maria Valentina Marin]

Source: junior-doc
Version: 1.16.1
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 junior-doc 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 -Nru junior-doc-1.16.1/debian/changelog junior-doc-1.16.1+nmu1/debian/changelog
--- junior-doc-1.16.1/debian/changelog	2010-03-28 12:42:45.000000000 +0200
+++ junior-doc-1.16.1+nmu1/debian/changelog	2015-07-14 16:22:09.000000000 +0200
@@ -1,3 +1,10 @@
+junior-doc (1.16.1+nmu1) UNRELEASED; urgency=medium
+
+  * Non-maintainer upload.
+  * Fix mtimes before building binary packages to make reproducible output
+
+ -- akira <marivalenm at gmail.com>  Tue, 14 Jul 2015 16:21:30 +0200
+
 junior-doc (1.16.1) unstable; urgency=low
 
   [Jari Aalto]
diff -Nru junior-doc-1.16.1/debian/rules junior-doc-1.16.1+nmu1/debian/rules
--- junior-doc-1.16.1/debian/rules	2003-03-23 20:35:56.000000000 +0100
+++ junior-doc-1.16.1+nmu1/debian/rules	2015-07-14 16:40:10.000000000 +0200
@@ -6,6 +6,8 @@
 examplesdir = $(docdir)/examples
 scriptsdir = $(examplesdir)/scripts
 
+BUILD_DATE := $(shell dpkg-parsechangelog --show-field Date)
+
 build: stamp-build
 stamp-build:
 	test -d quickguide -a -f debian/rules
@@ -42,6 +44,8 @@
 	gzip -c9 debian/changelog > $(docdir)/changelog.gz
 	chown -R root.root $(tmp) && chmod -R go=rX $(tmp)
 	dpkg-gencontrol -isp
+	find $(tmp) -newermt '$(BUILD_DATE)' -print0 | \
+		xargs -0r touch --no-dereference --date='$(BUILD_DATE)'
 	dpkg --build $(tmp) ..
 
 # If we were including the quickguide in ftp/doc, we would do the