Setup GitHub action for automatic cross platform builds

[nchapman]

Automatically build the app when merging.

• Figure out versioning plan. Semantic versioning? Add develop branch? Auto-build both?
• macOS
• Windows
• Linux

Reference: https://tauri.app/v1/guides/building/cross-platform

[ospfranco]

The github workflow is setup. Here is one run:

https://github.com/nchapman/pulsar/actions/runs/8081673932/job/22080785177

Right now it is failing because it has not downloaded the llamafile (it is also currently trying to import a linux arch version). Before moving forward and consuming all the minutes it would be great just to have confirmation we want this to run at this point.

It seems I can no longer move items to In Progress, so maybe @nchapman you can move this for me?

[nchapman]

@ospfranco yeah totally makes sense on the missing llamafile. I was hoping we'd have a native solution ready before we automated builds, but that's going to take a bit longer. I'll just go ahead and finish the llamafile integration. I'll make sure we have llamafile-x86_64-unknown-linux-gnu handled.

I updated permissions on the board so you should be able to move the issue now. Let me know if it doesn't work!

[nchapman]

@ospfranco llamafile is now integrated in PR #33. Want to give this a try again and see if it builds via the action?

[ospfranco]

• Seems the action is trying to build the intel version of the app, I need to check if it supports arm machines. Or maybe the github runner is an intel machine and cannot cross-compile to universal/apple silicon

• On windows it seems bun is not available? Also need to check this again

• Ubuntu did compile though! 🥳

https://github.com/nchapman/pulsar/actions/runs/8097062006/job/22127218866

[ospfranco]

Yeah, ok. it seems only the large Macos runners are apple silicon. What do you think @nchapman , do you want to shell out for a larger instance?

[ospfranco]

oven-sh/bun#43 (comment)

so bun doesn't officially run on Windows. There is currently experimental support, I can try to get that work but it looks like it comes with a bunch of caveats.

[nchapman]

@ospfranco yay unbuntu 🥳! I went ahead and added a llamafile symlink for intel macs. It does look like we can do cross compilation on macOS. So maybe the intel machine would be workable? That being said, I'm totally fine paying for a large macOS runner. Do I need to set anything up for us to do that?

[ospfranco]

Have you set up the payment on your account? the free minutes are measly anyway, so we will end up paying for more machine time anyway.

As for cross-compilation, yeah it is possible, it is only a question if the action takes care of it automatically. Let's try with all the llamafiles and see what the output is

[ospfranco]

Done

it is setup to run from the release branch. On a simple push. We can later modify it when pushing a tag or so.