[Halld-offline] Deprecating DIST in favor of HALLD_VERSIONS for version.xml files

[Mark Ito]

The files have been deleted from DIST. They are tar'ed up:

/group/halld/www/halldweb/html/dist/dist_version_xml_2020-08-24.tar

and additionally, the tar file is backed up to tape:

   /mss/home/gluex/backups/dist_version_xml_2020-08-24.tar

The files are on .snapshot as well, of course.

On 8/21/20 6:01 PM, Mark Ito wrote:
>
> Folks,
>
> I will delete the version.xml files in $DIST Monday morning, first 
> thing. Recall that the complete set is in $HALLD_VERSIONS.
>
>   -- Mark
>
> P.S. Recall:
>
>   * DIST = /group/halld/www/halldweb/html/dist
>   * HALLD_VERSIONS = /group/halld/www/halldweb/html/halld_versions
>
> On 2/28/20 1:58 PM, Mark Ito wrote:
>> Folks,
>>
>> February 24th has come and gone. And yet the version.xml files in 
>> $DIST remain. And in fact I have decided on a less extreme 
>> deprecation strategy:
>>
>> Rather than delete the version.xml files in DIST, they will be 
>> retained as they are until May 1. No new files will be added. New 
>> files will only appear in HALLD_VERSIONS.
>>
>> One exception: the next time a new default version set is assigned, 
>> the link in DIST pointing to the new default will be deleted. The old 
>> link in DIST, if retained, would point to the old default and not the 
>> new. To retain that link would be confusing. So it gets deleted. The 
>> correct link will only appear in HALLD_VERSIONS.
>>
>> The version.xml files in DIST will be deleted on May 1.
>>
>> This means that anything working now with currently existing files, 
>> other than procedures using the link to the default version set, will 
>> continue to work from DIST until May 1. Anything that uses version 
>> sets produced after today will need to use HALLD_VERSIONS.
>>
>> Finally, note that there are other files in DIST, files other than 
>> the version.xml files. This change has no effect on the status of 
>> those other files.
>>
>> Let me know if you have questions on this.
>>
>>   -- Mark
>>
>> On 2/7/20 3:21 PM, Mark Ito wrote:
>>> Folks,
>>>
>>> Executive Summary:
>>>
>>> version.xml files currently stored in $DIST will disappear. They can 
>>> be found in $HALLD_VERSIONS going forward. The change will occur on 
>>> Monday, February 24.
>>>
>>> The Details:
>>>
>>> As you know we have built up a large collection of version set files 
>>> a.k.a. version.xml files. Since these first started getting created 
>>> they have been stored in the DIST directory,
>>>
>>>   /group/halld/www/halldweb/html/dist ,
>>>
>>> which is web-accessible and therefore a convenient storage and 
>>> retrieval directory for single file access. Some time ago however, I 
>>> started storing our "official" version set files in its own Git 
>>> repository, which is cloned in a separate web-accessible directory 
>>> at JLab, HALLD_VERSIONS
>>>
>>>   /group/halld/www/halldweb/html/halld_versions .
>>>
>>> The main motivation was to provide an easy way to distribute the 
>>> entire collections of files to non-JLab sites (i.e., using git 
>>> clone) and update those directories (i.e., using git pull). This 
>>> mechanism is used by the gluex_install scripts.
>>>
>>> The XML files in DIST have been maintained as an exact mirror of the 
>>> contents of HALLD_VERSION by me, by hand, for many months now. So 
>>> this message is to tell you guys I'm going to stop doing that.
>>>
>>> Version set files in DIST will disappear on Monday, February 24.
>>>
>>> Right now, both environment variables DIST and HALLD_VERSIONS are 
>>> defined by the standard BuildScripts environment set-up (in 
>>> gluex_env_boot_jlab.(c)sh). After February 24, only HALLD_VERSIONS 
>>> will be defined.
>>>
>>> Let me know if you have comments, questions, or objections related 
>>> to this process.
>>>
>>>   -- Mark
>>>
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