Bug#1005826: mpl-sphinx-theme: please make the build reproducible

[Chris Lamb]

Source: mpl-sphinx-theme
Version: 0.0.6-1
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-bugs at lists.alioth.debian.org

Hi,

Whilst working on the Reproducible Builds effort [0] we noticed that
mpl-sphinx-theme could not be built reproducibly.

This is because the documentation embedded the current build year. A
patch is attached that optionally uses SOURCE_DATE_EPOCH [1] as the
source of this value instead.

 [0] https://reproducible-builds.org/
 [1] https://reproducible-builds.org/specs/source-date-epoch/


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-
-------------- next part --------------
--- a/debian/patches/reproducible-build.patch	1969-12-31 16:00:00.000000000 -0800
--- b/debian/patches/reproducible-build.patch	2022-02-15 09:31:32.750091395 -0800
@@ -0,0 +1,27 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby at debian.org>
+Last-Update: 2022-02-15
+
+--- mpl-sphinx-theme-0.0.6.orig/docs/conf.py
++++ mpl-sphinx-theme-0.0.6/docs/conf.py
+@@ -1,5 +1,11 @@
++import os
++import time
+ import datetime
+ 
++build_date = datetime.datetime.utcfromtimestamp(
++    int(os.environ.get('SOURCE_DATE_EPOCH', time.time()))
++)
++
+ # Configuration file for the Sphinx documentation builder for
+ # matplotlib projects.
+ 
+@@ -10,7 +16,7 @@ is_release_build = tags.has('release')
+ 
+ project = "Matplotlib Sphinx Theme"
+ copyright = (
+-    f"2012 - {datetime.datetime.now().year} The Matplotlib development team"
++    f"2012 - {build_date.year} The Matplotlib development team"
+ )
+ author = "Matplotlib Developers"
+ 
--- a/debian/patches/series	1969-12-31 16:00:00.000000000 -0800
--- b/debian/patches/series	2022-02-15 09:31:31.994091267 -0800
@@ -0,0 +1 @@
+reproducible-build.patch