= ChimeraX Developer Meeting =

Attendance: Eric, Zach, Tom, Greg

October 3, 2022

= Agenda =

* ChimeraX 1.5 feature freeze, branch and release candidates today?
* Started Mac ARM and universal daily builds
* Toolshed bundle requirement checking
* Remilestone or close 1.5 roadmap tickets
* Mac universals builds and M1 port
* Discuss possible OpenMM and VR improvements for Tristan and Altos to pursue
* Arrow graphic for Mac dmg file
* Back up the Chimera build machine to a solid state drive, Windows 7?

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= Discussion =

* Linux compilers
  * Greg will move singularity definition files for ChimeraX linux builds into ChimeraX git repository.
  * This will help Tristan compiling.

* ChimeraX 1.5 branch and release candidates
  * Greg would like to make some bug fixes before we branch.
  * We hope to branch next Monday after discussing at developer meeting.
  * Release candidates can be made a day or two after the branch to make sure nothing committed the day of the branch (which will also be in the daily build) causes serious issues.

* Will we drop macOS 10.14 in ChimeraX 1.5?
  * Plan is to keep macOS 10.14 for ChimeraX 1.5
  * About 100 unique IP addresses per month download from macOS 10.14.
  * Currently Mac universal 10.15, Mac ARM 11, and Mac Intel 10.14 daily builds are made and on the download page in that order.
  * We could use the same for the 1.5 release, including 10.14 on Intel.
  * We could optionally improve the download page to show only the Mac universal build or if the browser user-agent says Mac 10.14 show only the Intel Mac build. The other builds would be under "other releases".
  * Download page improvement can be done any time before or after release.

* Toolshed bundle requirement checking
  * Eric says this is about having the Toolshed verify more than the core version number before installing a bundle.
  * This will be long discussion for another meeting.

* Update UniRef BLAST databases
  * Elaine would like the databases updated for ChimeraX 1.5
  * These are entirely handled by the back-end blast web service so in theory can be updated any time, not coordinated with release.
  * Ticket is assigned to Scooter.
  * Greg found 2021 versions of databases on Wynton that could be used.  But require making the blast database files.
  * Scooter indicated by email that milestone for 1.6 is more practical given his limited time.

* Mingw compiler on Windows
  * Zach has tried using the mingw compiler on Windows instead of our current Microsoft Visual Studio.
  * This compiler was easier to use with github actions.
  * Also apparently did not use cygwin.
  * Seems like a major change.

* Have github convert line endings?
  * Zach suggests having git auto-convert text file line endings to use LF and no CR LF in repository.
  * TomG suggests this seems not worth the possible debugging that will result.
  * Zach says it is to help outside developers contributing on Windows to our repository.  We don't have any currently.

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= Action Items =
  - Present github continuous integration tutorial.  Zach
  - Beta releases on Toolshed - make ticket for this. Greg