#8447: Detect when Sage is old and issue warning
----------------------------+-----------------------------------------------
Reporter: drkirkby | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone: sage-4.3.4
Component: distribution | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Various threads - e.g
http://groups.google.co.uk/group/sage-
devel/browse_thread/thread/29ee9e1d4efdeda2
indicate that it is problematic when very old distributions of Sage are
used in distributions of Debian, Ubunta etc.
Whilst this is "shutting the gate afte the horse has bolted", it would be
useful if future versions of Sage indicated when they are very old.
Perhaps one message should be generated if the date on the computer is
more than 4 months in advance of the Sage release date, and a stronger
message is isssues if it is more than 12 months old. The exact wording and
periods would have to be discussed in sage-devel.
Whatever method is used, it should be portable, and non rely on GNU-
specific options to the 'date' command, or any other GNUism.
See
http://www.opengroup.org/onlinepubs/9699919799/utilities/date.html
for POSIX options to the ''date'' command.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8447>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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