Bug#1022777: tpm2-pytss: please make the build reproducible

[Chris Lamb]

Source: tpm2-pytss
Version: 1.2.0-2
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
tpm2-pytss could not be built reproducibly.

This is because it embedded the current "build" year by calling out
to datetime.datetime.utcnow() when building the documentation. 

Patch attached that seeds this value from SOURCE_DATE_EPOCH if it
exists in the surrounding environment.

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


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	2022-10-25 10:32:58.818873778 -0700
@@ -0,0 +1,26 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby at debian.org>
+Last-Update: 2022-10-25
+
+--- tpm2-pytss-1.2.0.orig/docs/conf.py
++++ tpm2-pytss-1.2.0/docs/conf.py
+@@ -12,6 +12,7 @@
+ #
+ import os
+ import sys
++import time
+ import datetime
+ import subprocess
+ 
+@@ -57,7 +58,10 @@ import tpm2_pytss
+ 
+ project = "tpm2-pytss"
+ author = "tpm2-software"
+-copyright = f"2019 - {datetime.datetime.today().year}, {author}"
++build_date = datetime.datetime.utcfromtimestamp(
++    int(os.environ.get('SOURCE_DATE_EPOCH', time.time()))
++)
++copyright = f"2019 - {build_date.year}, {author}"
+ 
+ # The short X.Y version
+ version = get_version(root="..", relative_to=__file__)
--- a/debian/patches/series	2022-10-25 10:25:20.122542133 -0700
--- b/debian/patches/series	2022-10-25 10:32:57.862874412 -0700
@@ -1 +1,2 @@
 debian-hacks/docs-Use-internal-ressources-for-intersphinx.patch
+reproducible-build.patch