[bug #59074] Tarball contains creation date, making it non-reproducible

[Mohammad Akhlaghi]

URL:
  <https://savannah.gnu.org/bugs/?59074>

                 Summary: Tarball contains creation date, making it
non-reproducible
                 Project: GNU Astronomy Utilities
            Submitted by: makhlaghi
            Submitted on: Mon 07 Sep 2020 04:01:34 AM BST
                Category: Installation
                Severity: 3 - Normal
              Item Group: Output not reasonable
                  Status: Postponed
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

After the release of Gnuastro 0.13, it was reported
<https://lists.gnu.org/archive/html/bug-gnuastro/2020-09/msg00000.html> that
the checksums don't match (while the GPG signature was valid!).

After looking into the difference (in P.S.), I just noticed what happened:
First I made the tarballs, gpg-signed them and uploaded them to gnu.org. Then
something came up and I had to go do other things. In the process, I
(unintentionally!) deleted the old tarballs (they were in a temporary
directory!). Also, in this period, the hour passed midnight in my timezone! 

So in the newly created tarball, the date in the automatically generated file
('doc/version.texi') was changed, causing this problem! 

Having the date hard-coded in the tarball thus makes it non-reproducible,
which is not good! We should remove this and just get the date at run-time,
not hard-code it in the source. 

P.S.

diff -bur incomputer/gnuastro-0.13/ uploaded/gnuastro-0.13
diff -bur incomputer/gnuastro-0.13/doc/stamp-vti
uploaded/gnuastro-0.13/doc/stamp-vti
--- incomputer/gnuastro-0.13/doc/stamp-vti      2020-09-07 01:25:27.000000000
+0100
+++ uploaded/gnuastro-0.13/doc/stamp-vti        2020-09-07 01:01:02.000000000 
+0100
@@ -1,4 +1,4 @@
-@set UPDATED 7 September 2020
+@set UPDATED 6 September 2020
 @set UPDATED-MONTH September 2020
 @set EDITION 0.13
 @set VERSION 0.13
diff -bur incomputer/gnuastro-0.13/doc/version.texi
uploaded/gnuastro-0.13/doc/version.texi
--- incomputer/gnuastro-0.13/doc/version.texi   2020-09-07 01:21:37.000000000
+0100
+++ uploaded/gnuastro-0.13/doc/version.texi     2020-09-07 01:01:02.000000000
+0100
@@ -1,4 +1,4 @@
-@set UPDATED 7 September 2020
+@set UPDATED 6 September 2020
 @set UPDATED-MONTH September 2020
 @set EDITION 0.13
 @set VERSION 0.13





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