support for pushing while building?

[colemickens]

Hi, I know that you added support for this in cachix, both via the new mode and the previously existing store watching mode.

How can I mostly easily make use of that here? I'm running out of space on the GHA free builders and if cachix were pushing in the background, it's likely that I would eventually succeed (since I'm using nix-build-uncached, it would be able to keep poking through the builds, in some cases at least)

[colemickens]

(and I'm not sure, it seems like maybe cachix action will upload by default, even if steps fail, but in my case, the entire Workflow gets into a bad state because the runner failure looks like an internal failure...)

[domenkozar]

You should be able to do that by running cachix watch-store $CACHE_NAME after cachix-action.

[domenkozar]

Thinking of making this the default implementation 🤔

[terlar]

I agree this would be a nice default

[domenkozar]

This is now in beta, help us test:

- uses: cachix/cachix-action@d150e67a68baa578596bcdbdf830657b4a173df4
  with:
    useDaemon: true

[terlar]

I tried this commit, but seems the install step is not executing the correct command:

Run cachix/cachix-action@d150e67a68baa578596bcdbdf830657b4a173df4
  with:
    name: terlar
    authToken: ***
    extraPullNames: nix-community
    useDaemon: true
Cachix: installing
  /usr/bin/bash -c 
Cachix: checking version
  Error: Action failed with error: Error: Unable to locate executable file: cachix. Please verify either the file path exists or the file can be found within a directory specified by the PATH environment variable. Also check the file mode to verify the file is executable.

[sandydoo]

@terlar, thanks for the feedback! Should be fixed in cachix/cachix-action@5fc8ed76f6a97fdf54319a5f6846f67b60c9ed5d

[terlar]

Thank you, that worked, however, when running that commit with useDaemon enabled it seems my cache was not used. I did not look into why, but it has been working before:
https://github.com/terlar/emacs-config/actions/runs/6432508165

I'll investigate it when I have time to see if the nix.conf was updated correctly or what the deal is...

[sandydoo]

@terlar, thanks for the logs! The post-build-hook was completely overriding the existing nix configuration. We now tell nix to load and merge any existing user nix.confs.