Bug#1009981: rsync: please make the build reproducible

[Chris Lamb]

Source: rsync
Version: 3.2.4-1
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
rsync could not be built reproducibly.

This was because the manpage generation used the current date for the
manual page header.

A patch is attached that will use SOURCE_DATE_EPOCH if available.

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


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-
-------------- next part --------------
--- a/debian/patches/reproducible_manpages.patch	1969-12-31 16:00:00.000000000 -0800
--- b/debian/patches/reproducible_manpages.patch	2022-04-21 09:29:18.220183086 -0700
@@ -0,0 +1,15 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby at debian.org>
+Last-Update: 2022-04-21
+
+--- rsync-3.2.4.orig/md-convert
++++ rsync-3.2.4/md-convert
+@@ -241,7 +241,7 @@ def find_man_substitutions():
+                 if var == 'srcdir':
+                     break
+ 
+-    env_subs['date'] = time.strftime('%d %b %Y', time.localtime(mtime))
++    env_subs['date'] = time.strftime('%d %b %Y', time.gmtime(int(os.environ.get('SOURCE_DATE_EPOCH', time.time()))))
+ 
+ 
+ def html_via_commonmark(txt):
--- a/debian/patches/series	2022-04-21 09:16:56.694213519 -0700
--- b/debian/patches/series	2022-04-21 09:29:17.192187237 -0700
@@ -2,3 +2,4 @@
 skip_devices_test.patch
 perl_shebang.patch
 fix_rrsync_man_generation.patch
+reproducible_manpages.patch