Source: gem2deb
Version: 0.17
Severity: wishlist
Tags: patch
User: reproducible-builds@lists.alioth.debian.org
Usertags: timezone timestamps

Hi!

While working on the "reproducible builds" effort [1], we have noticed
that dh_ruby don't allow generate the gemspec file from the metadata.yml
file in a reproducible manner due usage of the user timezone.

The attached patch set the environment variable TZ to UTC in dh_ruby,
ignoring the timezone of the user.
Once applied, we can built about 70 packages reproducibly in our current
experimental framework.

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


-- System Information:
Debian Release: stretch/sid
  APT prefers testing-updates
  APT policy: (500, 'testing-updates'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
diff -urNp gem2deb-0.17.old/bin/dh_ruby gem2deb-0.17+nmu1/bin/dh_ruby
--- gem2deb-0.17.old/bin/dh_ruby	2015-05-28 08:50:10.000000000 -0300
+++ gem2deb-0.17+nmu1/bin/dh_ruby	2015-06-05 15:26:29.476450780 -0300
@@ -21,6 +21,8 @@ require 'gem2deb/setup_rb_installer'
 require 'optparse'
 include Gem2Deb
 
+ENV["TZ"] = "UTC"
+
 engine = Gem2Deb::DhRuby.new
 
 optparse = OptionParser.new do |opts|
diff -urNp gem2deb-0.17.old/debian/changelog gem2deb-0.17+nmu1/debian/changelog
--- gem2deb-0.17.old/debian/changelog	2015-05-28 08:50:10.000000000 -0300
+++ gem2deb-0.17+nmu1/debian/changelog	2015-06-05 15:39:49.308481924 -0300
@@ -1,3 +1,10 @@
+gem2deb (0.17+nmu1) unstable; urgency=medium
+
+  * dh_ruby: set TZ environ variable to UTC for make the generation of 
+    gemspec file from metadata.yml reproducible.
+
+ -- Juan Picca <jumap...@gmail.com>  Fri, 05 Jun 2015 18:22:37 +0000
+
 gem2deb (0.17) unstable; urgency=medium
 
   * dh-make-ruby:
_______________________________________________
Reproducible-builds mailing list
Reproducible-builds@lists.alioth.debian.org
http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/reproducible-builds

Reply via email to