Bug#833610: ara: please make the build reproducible

[Chris Lamb <lamby@debian.org>]

Source: ara
Version: 1.0.31
Severity: wishlist
Tags: patch
User: reproducible-builds@lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-builds@lists.alioth.debian.org

Hi,

Whilst working on the "reproducible builds" effort [0], we noticed
that ara could not be built reproducibly.

Patch attached.

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


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby@debian.org / chris-lamb.co.uk
       `-

--- a/common/mkversion.sh	2016-08-06 23:30:32.763007181 +0100
--- b/common/mkversion.sh	2016-08-06 23:37:00.142190926 +0100
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 VERSION=`sed -n -e '1s/^ara (\([^ ]*\)) .*$/\1/p' ../debian/changelog`
-DATE=`date +'%04Y-%02m-%02d'`
+DATE=$(date --utc --date="@${SOURCE_DATE_EPOCH:-$(date +%s)}" +'%04Y-%02m-%02d')
 
 rm -f version.ml
 sed -e 's/\$VERSION\$/'"$VERSION"'/g' \