[Debian-med-packaging] Bug#912957: python-multipletau: please make the build reproducible

[Chris Lamb]

Source: python-multipletau
Version: 0.3.0+ds-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 python-multipletau could not be built reproducibly.

Patch attached.

 [0] https://reproducible-builds.org/


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-
-------------- next part --------------
--- a/debian/patches/reproducible-build.patch	1970-01-01 01:00:00.000000000 +0100
--- b/debian/patches/reproducible-build.patch	2018-11-05 09:06:13.938544636 +0000
@@ -0,0 +1,23 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby at debian.org>
+Last-Update: 2018-11-05
+
+--- python-multipletau-0.3.0+ds.orig/multipletau/_version.py
++++ python-multipletau-0.3.0+ds/multipletau/_version.py
+@@ -109,6 +109,16 @@ if True:  # pragma: no cover
+     except BaseException:
+         pass
+ 
++    # 1.5. Prefer SOURCE_DATE_EPOCH if set. See <https://reproducible-builds.org/specs/source-date-epoch/>
++    try:
++        longversion = time.strftime(
++            "%Y.%m.%d-%H-%M-%S",
++            time.gmtime(float(os.environ['SOURCE_DATE_EPOCH']))
++        )
++        print("Using SOURCE_DATE_EPOCH as version: {}".format(longversion))
++    except KeyError:
++        pass
++
+     # 2. previously created version file
+     if longversion == "":
+         # Either this is this is not a git repository or we are in the
--- a/debian/patches/series	2018-11-05 08:50:30.848811875 +0000
--- b/debian/patches/series	2018-11-05 09:06:12.030765663 +0000
@@ -1,2 +1,3 @@
 examples_location.patch
 packaged-mathjax.patch
+reproducible-build.patch