Source: liblockfile
Version: 1.09-6
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 liblockfile 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


diff -Nru liblockfile-1.09/debian/changelog liblockfile-1.09/debian/changelog
--- liblockfile-1.09/debian/changelog   2013-06-02 11:46:21.000000000 +0200
+++ liblockfile-1.09/debian/changelog   2015-07-14 17:12:57.000000000 +0200
@@ -1,3 +1,10 @@
+liblockfile (1.09-6.1) UNRELEASED; urgency=medium
+
+  * Non-maintainer upload.
+  * Fix mtimes before building binary packages to produce reproducible output
+
+ -- akira <marival...@gmail.com>  Tue, 14 Jul 2015 17:12:23 +0200
+
 liblockfile (1.09-6) unstable; urgency=low
 
   * Merge 1.09-5ubuntu1
diff -Nru liblockfile-1.09/debian/rules liblockfile-1.09/debian/rules
--- liblockfile-1.09/debian/rules       2012-06-13 13:26:39.000000000 +0200
+++ liblockfile-1.09/debian/rules       2015-07-14 17:12:20.000000000 +0200
@@ -20,6 +20,8 @@
 
 DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
 
+BUILD_DATE := $(shell dpkg-parsechangelog --show-field Date)
+
 build-arch:    config.status
        $(checkdir)
        make
@@ -68,6 +70,8 @@
        $(do_md5sums)
        dpkg-shlibdeps liblockfile.so
        dpkg-gencontrol -pliblockfile1 -P$(tmp) -isp
+       find $(tmp) -newermt '$(BUILD_DATE)' -print0 | \
+               xargs -0r touch --no-dereference --date='$(BUILD_DATE)'
        dpkg --build $(tmp) ..
        #
        #       Build liblockfile-bin
@@ -97,6 +101,8 @@
        $(do_md5sums)
        dpkg-shlibdeps dotlockfile
        dpkg-gencontrol -pliblockfile-bin -P$(tmp) -isp
+       find $(tmp) -newermt '$(BUILD_DATE)' -print0 | \
+               xargs -0r touch --no-dereference --date='$(BUILD_DATE)'
        dpkg --build $(tmp) ..
        #
        #       Build liblockfile-dev
@@ -132,6 +138,8 @@
                $(tmp)/usr/share/doc/liblockfile-dev/copyright
        $(do_md5sums)
        dpkg-gencontrol -pliblockfile-dev -P$(tmp) -isp
+       find $(tmp) -newermt '$(BUILD_DATE)' -print0 | \
+               xargs -0r touch --no-dereference --date='$(BUILD_DATE)'
        dpkg --build $(tmp) ..
 
 
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