Re: [RPM Spec] Shall we use Local time or UTC for %changelog date?

2011-07-23 Thread Ville Skyttä
On 07/22/2011 10:33 PM, Toshio Kuratomi wrote:

 The rpm changelog can reasonably be in any timezone.

It is better to always write the changelog timestamp in UTC to avoid
%changelog not in descending chronological order build errors if the
specfile is modified at unfortunate moments in different timezones.
rpmbuild handles it in UTC as well.

If using *Emacs rpm-spec-mode, the rpm-change-log-uses-utc variable can
be set to non-nil to accomplish this (it's that way by default in emacs
= 23.3-3).  I've just pushed a change to rpmdevtools git that makes
bumpspec use UTC too.
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[RPM Spec] Shall we use Local time or UTC for %changelog date?

2011-07-22 Thread Ding Yi Chen
Hi list,
I recently ran into an interesting problem related to time zone.

I live in time zone GMT+10.
On 0:10, 18th July, 
I wrote my changelog as:
* Mon Jul 18 2011 ..


And then run rpmlint, which give me:
packageName: E: changelog-time-in-future 2011-07-18

So I am wondering which one I should use: local time or convert it to UTC?

Regards,

-- 
Ding-Yi Chen
Software Engineer
Internationalization Group
Red Hat, Inc.

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Re: [RPM Spec] Shall we use Local time or UTC for %changelog date?

2011-07-22 Thread Dmitry Butskoy
Ding Yi Chen wrote:
 Hi list,
 I recently ran into an interesting problem related to time zone.

 I live in time zone GMT+10.
 On 0:10, 18th July,
 I wrote my changelog as:
 * Mon Jul 18 2011 ..
 

 And then run rpmlint, which give me:
 packageName: E: changelog-time-in-future 2011-07-18

 So I am wondering which one I should use: local time or convert it to UTC?

Certainly convert it to UTC.

As at any other international things (post, airports) the time must be 
unique.

Regards,
Dmitry Butskoy
http://www.fedoraproject.org/wiki/DmitryButskoy

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Re: [RPM Spec] Shall we use Local time or UTC for %changelog date?

2011-07-22 Thread Vít Ondruch
Dne 22.7.2011 14:31, Dmitry Butskoy napsal(a):
 Ding Yi Chen wrote:
 Hi list,
 I recently ran into an interesting problem related to time zone.

 I live in time zone GMT+10.
 On 0:10, 18th July,
 I wrote my changelog as:
 * Mon Jul 18 2011 ..
 

 And then run rpmlint, which give me:
 packageName: E: changelog-time-in-future 2011-07-18

 So I am wondering which one I should use: local time or convert it to UTC?
 Certainly convert it to UTC.

 As at any other international things (post, airports) the time must be
 unique.

 Regards,
 Dmitry Butskoy
 http://www.fedoraproject.org/wiki/DmitryButskoy


Alternatively you can use rpmlint just after 10 AM and you will be safe ;)

Vit
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Re: [RPM Spec] Shall we use Local time or UTC for %changelog date?

2011-07-22 Thread David Tardon
On Fri, Jul 22, 2011 at 02:34:45PM +0200, Vít Ondruch wrote:
 Dne 22.7.2011 14:31, Dmitry Butskoy napsal(a):
  Ding Yi Chen wrote:
  Hi list,
  I recently ran into an interesting problem related to time zone.
 
  I live in time zone GMT+10.
  On 0:10, 18th July,
  I wrote my changelog as:
  * Mon Jul 18 2011 ..
  
 
  And then run rpmlint, which give me:
  packageName: E: changelog-time-in-future 2011-07-18
 
  So I am wondering which one I should use: local time or convert it to UTC?
  Certainly convert it to UTC.
 
  As at any other international things (post, airports) the time must be
  unique.
 
  Regards,
  Dmitry Butskoy
  http://www.fedoraproject.org/wiki/DmitryButskoy
 
 
 Alternatively you can use rpmlint just after 10 AM and you will be safe ;)

Alternatively you can just ignore the warning. That is what I would do.

D.
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Re: [RPM Spec] Shall we use Local time or UTC for %changelog date?

2011-07-22 Thread Toshio Kuratomi
On Fri, Jul 22, 2011 at 03:27:58PM +0200, David Tardon wrote:
 On Fri, Jul 22, 2011 at 02:34:45PM +0200, Vít Ondruch wrote:
  Dne 22.7.2011 14:31, Dmitry Butskoy napsal(a):
   Ding Yi Chen wrote:
   Hi list,
   I recently ran into an interesting problem related to time zone.
  
   I live in time zone GMT+10.
   On 0:10, 18th July,
   I wrote my changelog as:
   * Mon Jul 18 2011 ..
   
  
   And then run rpmlint, which give me:
   packageName: E: changelog-time-in-future 2011-07-18
  
   So I am wondering which one I should use: local time or convert it to 
   UTC?
   Certainly convert it to UTC.
  
   As at any other international things (post, airports) the time must be
   unique.
  
   Regards,
   Dmitry Butskoy
   http://www.fedoraproject.org/wiki/DmitryButskoy
  
  
  Alternatively you can use rpmlint just after 10 AM and you will be safe ;)
 
 Alternatively you can just ignore the warning. That is what I would do.
 
yep, if it's just that the date you've used is different according to
timezone.  (Of course, be careful that you didn't just flub the date :-)

The rpm changelog can reasonably be in any timezone.  It's primarily for
people to check on their machines by running rpm -q[p] --changelog (which
could be days later because the update has to be built in koji and then
pushed to the repos.

Its also used when you or another maintainer has to see what was done to
a package in the past... which is usually (not always but in the majority of
cases) also days later.

-Toshio


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