Source: the Version: 3.3~rc1-2 Severity: wishlist Tags: patch User: reproducible-builds@lists.alioth.debian.org Usertags: timestamps X-Debbugs-Cc: reproducible-builds@lists.alioth.debian.org
Hi! While working on the “reproducible builds” effort [1], we have noticed that the 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. Please also consider this other bug from the reproducible builds team: https://bugs.debian.org/777370 Cheers, akira [1]: https://wiki.debian.org/ReproducibleBuilds
diff -Nru the-3.3~rc1/debian/changelog the-3.3~rc1/debian/changelog
--- the-3.3~rc1/debian/changelog 2012-06-30 18:11:25.000000000 +0200
+++ the-3.3~rc1/debian/changelog 2015-07-26 11:22:52.000000000 +0200
@@ -1,3 +1,10 @@
+the (3.3~rc1-2.1) UNRELEASED; urgency=medium
+
+ * Non-maintainer upload.
+ * Fix mtimes before building binary packages to produce reproducible output
+
+ -- akira <marival...@gmail.com> Sun, 26 Jul 2015 11:22:39 +0200
+
the (3.3~rc1-2) unstable; urgency=low
* Fixed debian/rules build target.
diff -Nru the-3.3~rc1/debian/rules the-3.3~rc1/debian/rules
--- the-3.3~rc1/debian/rules 2012-06-30 18:11:01.000000000 +0200
+++ the-3.3~rc1/debian/rules 2015-07-26 11:22:35.000000000 +0200
@@ -8,6 +8,7 @@
CFLAGS:=$(shell dpkg-buildflags --get CFLAGS) $(CPPFLAGS)
CXXFLAGS:=$(shell dpkg-buildflags --get CXXFLAGS) $(CPPFLAGS)
LDFLAGS:=$(shell dpkg-buildflags --get LDFLAGS)
+export SOURCE_DATE_EPOCH = $(shell date -d "$$(dpkg-parsechangelog --count 1
-SDate)" +%s)
build: build-arch build-indep
build-arch: stamp-build
@@ -61,6 +62,8 @@
chmod -R go=rX debian/tmp-doc
chmod 755 debian/md5_sums
debian/md5_sums tmp-doc
+ find debian/tmp-doc -newermt "@$$SOURCE_DATE_EPOCH" -print0 | \
+ xargs -0r touch --no-dereference --date="@$$SOURCE_DATE_EPOCH"
dpkg --build debian/tmp-doc ..
binary-arch: checkroot build
@@ -91,6 +94,8 @@
chmod -R go=rX debian/tmp*
chmod 755 debian/md5_sums
debian/md5_sums tmp
+ find debian/tmp -newermt "@$$SOURCE_DATE_EPOCH" -print0 | \
+ xargs -0r touch --no-dereference --date="@$$SOURCE_DATE_EPOCH"
dpkg --build debian/tmp ..
define checkdir
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