[Box-Admins] Re: [Board] Disk space is low on box3

Frank Shearar frank.shearar at gmail.com
Tue Nov 4 11:58:44 UTC 2014


On 3 November 2014 19:12, tim Rowledge <tim at rowledge.org> wrote:
>
> On 03-11-2014, at 4:54 AM, Frank Shearar <frank.shearar at gmail.com> wrote:
>
>> Not
>> only that, I don't think there's any way of saying "please update my
>> Squeak image from 4.5-N to 4.5-M", so we can't recreate the starting
>> conditions of a build.
>
> Actually I think that we can do this. Take a look at UpdateStreamDownloader class>applyUpdatesFromDiskToUpdaeNumber:stopIfGap:

No, because decomposing a sum into its summands is not unambiguous. If
you and I have two images, and your Network package is version 222 and
Kernel package is 501, while my Network package is version 221 and
Kernel is version 502, all other packages being the same, _our update
numbers are identical_.

There are a few synchronisation points, in the form of MCMs, in the
history of the update stream, but in between those, no, you have no
way of knowing - from only the update number - what the versions of
packages are that ought to make up that "version" of the image.

frank

> tim
> --
> tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
> Klingon Code Warrior:- 9) "A TRUE Klingon warrior does not comment his code!"


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