[Haskell-cafe] Final steps in GHC's Trac-to-GitLab migration

[Ben Gamari]

On March 6, 2019 6:11:49 AM EST, Ara Adkins <me at ara.io> wrote:
>Super excited for this! Thank you to everyone whose put in so much hard
>work to get it done!
>
>One question: what is happening with the trac tickets mailing list? I
>imagine it’ll be going away, but for those of us that use it to keep
>track of things is there a recommended alternative? 
>
The ghc-commits list will continue to work.

The ghc-tickets list is a good question. I suspect that under gitlab there will be less need for this list but we may still want to continue maintaining it regardless for continuity's sake. Thoughts? 

Cheers, 

- Ben 



>Best,
>_ara
>
>> On 6 Mar 2019, at 01:21, Ben Gamari <ben at well-typed.com> wrote:
>> 
>> Hi everyone,
>> 
>> Over the past few weeks we have been hard at work sorting out the
>> last batch of issues in GHC's Trac-to-GitLab import [1]. At this
>point I
>> believe we have sorted out the issues which are necessary to perform
>the
>> final migration:
>> 
>> * We are missing only two tickets (#1436 and #2074 which will require
>a
>>   bit of manual intervention to import due to extremely large
>>   description lengths)
>> 
>> * A variety of markup issues have been resolved
>> 
>> * More metadata is now preserved via labels. We may choose to
>>   reorganize or eliminate some of these labels in time but it's
>easier
>>   to remove metadata after import than it is to reintroduce it. The
>>   logic which maps Trac metadata to GitLab labels can be found here
>[2]
>> 
>> * We now generate a Wiki table of contents [3] which is significantly
>>   more readable than GitLab's default page list. This will be updated
>>   by a cron job until underlying GitLab pages list becomes more
>>   readable.
>> 
>> * We now generate redirects for Trac ticket and Wiki links (although
>>   this isn't visible in the staging instance)
>> 
>> * Milestones are now properly closed when closed in Trac
>> 
>> * Mapping between Trac and GitLab usernames is now a bit more robust
>> 
>> As in previous test imports, we would appreciate it if you could have
>a
>> look over the import and let us know of any problems your encounter.
>> 
>> If no serious issues are identified with the staging site we plan to
>> proceed with the migration this coming weekend. The current migration
>> plan is to perform the final import on gitlab.haskell.org on
>Saturday, 9
>> March 2019.
>> 
>> This will involve both gitlab.haskell.org and ghc.haskell.org being
>down
>> for likely the entirety of the day Saturday and likely some of Sunday
>> (EST time zone). Read-only access will be available to
>> gitlab.staging.haskell.org for ticket lookup while the import is
>> underway.
>> 
>> After the import we will wait at least a week or so before we begin
>the
>> process of decommissioning Trac, which will be kept in read-only mode
>> for the duration.
>> 
>> Do let me know if the 9 March timing is problematic.
>> 
>> Cheers,
>> 
>> - Ben
>> 
>> 
>> [1] https://gitlab.staging.haskell.org/ghc/ghc
>> [2]
>https://github.com/bgamari/trac-to-remarkup/blob/master/TicketImport.hs#L227
>> [3] https://gitlab.staging.haskell.org/ghc/ghc/wikis/index
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