[CMake] Strange behavior with Nightly builds

[Richard Wackerbarth]

On Jun 22, 2012, at 2:09 AM, NoRulez wrote:

> Hello Richard,
> 
> >> What is the configured cutoff time for Nightly runs?
> Did you mean the nightly build time?

I mean this value (for example in CTestConfig.cmake)
such as:

set(CTEST_NIGHTLY_START_TIME "21:00:00 EDT")
or
set(CTEST_NIGHTLY_START_TIME "1:00:00 UTC")

But let's be certain that we both are talking about the consistent times, namely UTC.

> >> During which hours does the "continuous" builder run?
> Between 6 am and 10 pm
 (UTC ?)

(Note A) See below

> >> When does the "nightly" builder run?
> Nightly build time is configured for 23:00 UTC (11 pm)
> 
> >> Which builds do you expect to be posted to "continuous"?
> At 10 pm and at 6 pm in the morning (next day) the commit should be e.g. 48

I interpret (Note A) to indicate that you should expect the following runs:
5, 6, 7, ... , 21, 30 - 45, 54 - 69, etc.
Commit 5 is processed when the builder restarts at 6 AM.
Commit 6 is processed shortly after 6:15 AM
The builder shuts down for the night before Commit 22 is posted at 10:15 PM

> >> Which builds do you expect to be posted to "nightly"?
> At 11 pm the commit should be e.g. 48 (HEAD revision) which means the last commit from the current day

At 11 PM, the last commit was the one made at 10:15 PM, namely 22, 46, 70, ...

> e.g.: If the last commit from the 21.06.2012 is at 12:30 am

I don't know how you expect 12:30 AM to be the last commit of the day. The day started only 30 minutes earlier.

> and has the commit 32, then the nightly build from the 21.06.2012 at 23:00 (11 pm) has (should have) the commit 32 too.

This doesn't make sense. (And please follow my assumptions -- all of the commits in my scenario occur at 15 minutes past the hour. There are no commits made at 12:30 am)

Please draw your timeline, mark all of the actions and revise your expectations.

> The only difference is that the nightly builds starts from an empty build directory (the directory content are removed).

A typical distinction.

> Thanks in advance
> 
> Best Regards
> 
> 
> Am 21. Jun 2012 um 20:20 schrieb Richard Wackerbarth <richard at NFSNet.org>:
> 
>> From reading this, I get the distinct impression that your are not interpreting the meaning of "nightly" in the same way that the rest of us are doing so.
>> 
>> Let's assume the following:
>> 
>> At 15 minutes past each hour, a new commit is added to the repository.
>> 
>> For the sake of description, the "zeroth" commit happens at 12:15 AM on June 21
>> Commit #1 is at 1:15 AM,
>> ...
>> Commit #18 is at 6:15 PM,
>> ...
>> Commit #22 is at 10:15 PM,
>> Commit #23 is at 11:15 PM,
>> Commit #24 is at 12:15 AM on June 22
>> ...
>> Commit #47 is at 11:15 PM,
>> Commit #48 is at 12:15 AM on June 23
>> ...
>> 
>> etc.
>> 
>> Further, assume that a build requires 5 minutes to run.
>> 
>> ===
>> 
>> Now it terms of those assumptions,
>> please tell me:
>> 
>> What is the configured cutoff time for Nightly runs?
>> During which hours does the "continuous" builder run?
>> When does the "nightly" builder run?
>> 
>> Which builds do you expect to be posted to "continuous"?
>> Which builds do you expect to be posted to "nightly"?
>> 
>> ===
>> 
>> With those answers, perhaps I will be able to understand what you expect and help explain how you might achieve it.
>> 
>> Richard
>> 
>> On Jun 21, 2012, at 1:29 AM, NoRulez wrote:
>> 
>> > Has no one an idea on how to do so or is such functionality missing?
>> > 
>> > Thanks in advance
>> > 
>> > Best Regards
>> > 
>> > 
>> > Am 15. Jun 2012 um 08:38 schrieb NoRulez <norulez at me.com>:
>> > 
>> >> Hello David,
>> >> 
>> >> but the problem is, that the timestamp is one day behind, so this doesn't work and I get previous revisions. (Our nightly build starts at 23:00 and not at 1 am)
>> >> However is there a way to update to the HEAD revision?
>> >> 
>> >> Best Regards
>> 
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