= ChimeraX Developer Meeting =

Attendance: Piet, Greg, Tom, Eric, Zach

November 18, 2024

= Agenda =

* Toolshed contact obfuscated email addresses.
* LAMMPS bundle include in distribution?
* Linux candidate builds failing, last night getting ffmpeg from www.rbvi.ucsf.edu failed.
* What to do about Mac external display crashes
* ChimeraX 1.9 release candidates, branch and tickets
* Clean-up ChimeraX 1.9 roadmap wiki page
* Work in progress reports
* Make Chimera end-of-life bug report and registration changes.
* Back up the Chimera build machine to a solid state drive, Windows 7.
* GitHub Actions builds


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= Discussion =

* LAMMPS contact email obfuscated
  - The LAMMPS file reader listed email on Toolshed with "at" instead of "@" to avoid spam
  - That makes our nightly email that notifies about Toolshed bundles without Trac accounts constantly notify us developers.
  - Eric will change that notify script to allow exceptions.

* LAMMPS in ChimeraX distribution?
  - LAMMPS developer wants to eliminate need to install from Toolshed by inclusion in ChimeraX distribution.
  - Should we allow that?
  - Bundle has no other dependencies.
  - Bundle is currently licensed GPL -- license would need to be changed.
  - It is about 400 lines of Python code.
  - Developer could submit pull requests to fix bugs.
  - We could remove it if it broke in a new ChimeraX version.
  - Would want some documentation in user guide - Eric will ask Elaine about that.
  - Eric would manage any pull requests.
  - Seems ok if Eric and Elaine are willing.

* Toolshed reload available
  - We tried during meeting to get Toolshed to load LAMMPS metadata to see if it would put the file format in the Open dialog list of formats.
  - Could not get the meta data using "toolshed reload available".
  - Greg said that command is asynchronous so may not have completed.

* Mac display configuration crashes
  - Have 5 crashes reported in 10 days in 1.9 release candidate.
  - We may get crash reports every day if we release this.
  - We don't have any way to reproduce it.
  - Today's report in ChimeraX 1.8 was on an iMac with no external display, probably waking from sleep.
  - Could popup a one time warning on Mac with 2 or more displays about crash when changing displays.  But this does not address same crash when computer sleeps -- hard for user to avoid display sleep.
  - We don't have any good ideas for handling this crash.
  - Greg says PyQt 6.8 won't be out until Qt 6.8.1 comes out.
  - Unlikely that Qt 6.8 will fix crash.  No Qt bug reports.  Probably requires Qt app using OpenGL so is rare among apps.

* ChimeraX 1.9 milestoned tickets
  - Greg and Zach say none of the 15 milestoned 1.9 tickets block release.
  - They will work on remilestoning or closing tickets.

* Nucleotides tethers fixed
  - Greg with Eric's help fixed a tether not going to the ribbon bug with nucleotides.
  - Tether was drawn before nucleotides set the atom hide bit.


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= Action Items =