[Halld-offline] Done! Re: De-commissioning the Commissioning Branch of sim-recon

Mark Ito marki at jlab.org
Fri Mar 6 19:12:15 EST 2015


The deed is done. The trunk is identical to the commissioning branch as 
I write this. Please do a fresh checkout of trunk/sim-recon to get 
started on the new trunk. Updates of old check-outs of the trunk will be 
problematic because of merge-markers that were present on the branch.

Let me know if you have problems.

   -- Mark

On 03/06/2015 09:58 AM, Mark Ito wrote:
> Reminder...
> On 03/04/2015 04:39 PM, Mark Ito wrote:
>> *Executive Summary*: check-in any final changes to the commissioning 
>> branch of sim-recon by C.O.B., Friday, March 6.
>> Folks,
>> After the offline meeting today a few of us were discussing how to 
>> restore the sim-recon trunk (trunk/sim-recon) as the main line of 
>> development. Recall at the collaboration meeting there was consensus 
>> around copying the commission branch 
>> (branches/sim-recon-commissioning) onto the trunk at some point. Now 
>> that Justin has discovered the source of our previous problems with 
>> the branch (simulated data not reconstructing properly due to 
>> inappropriate calibration constants) it is beyond time that we do the 
>> copy, branch to trunk.
>> That having been said, one of us (David) pointed out rightly that 
>> some people probably have un-checked-in changes to their 
>> commissioning-branch code. As such the copy mentioned above, if done 
>> immediately, would leave their changes off the trunk. To avoid this 
>> we will delay the copy until 5:00 pm on Friday. In the meantime, 
>> please check-in any changes to the commissioning branch that 
>> represent real improvements. Those changes will then get swept to the 
>> trunk when we do the copy on Friday.
>> Note that if for some reason you are not able to make this deadline, 
>> your code changes are not lost forever. There are various ways to put 
>> them back on the trunk (description a bit too technical for this 
>> message). See me for assistance if needed.
>> After the copy is made, then the commissioning branch will be 
>> considered to be at end-of-life (apart from exceptions alluded to 
>> above, in reference to missing the deadline). All development after 
>> that should then begin with a fresh check-out of the trunk. We will 
>> make an announcement on this list when the copy is complete.
>> After we move off the branch, there will still be a need to analyze 
>> data from the Fall run obviously. To do that you need to build 
>> sim-recon against the commissioning branch of HDDS (i. e., you must 
>> still use the commissioning geometry). Alternately, you could 
>> continue to use the commissioning branch of sim-recon, just know that 
>> further improvements to that code base will not be coming in. For the 
>> upcoming run, since the trunk of HDDS (geometry) has the hydrogen 
>> target and the default beam line components, it should be used.
>> Finally, if  you have objections to this plan, please let me know 
>> before Friday, 5 pm.
>>   -- Mark

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