NPM: Version packages using Lerna or Nx

[jackw]

Requirements

This is WIP right now whilst I get the grafana/grafana branch together and do all the tests.

The main branch of grafana-build should be compatible with all active versions of Grafana and Grafana-Enterprise.

• I have tested this against main in Grafana.
• I have tested this against main in Grafana Enterprise.
• I have tested this against all active version branches of Grafana (v10.0.x, v10.1.x, v10.2.x, etc).
• I have tested this against all active version branches of Grafana Enterprise (v10.0.x, v10.1.x, v10.2.x, etc).

Why?

See this issue. TLDR; once these PRs are all merged we have the ability to create versioning strategies for different packages fixing the age old problem of "how do I add an NPM package to Grafana that doesn't get versioned and released with Grafana releases".

Associated PRs:

• Bump Version: Replace lerna with Nx release grafana-github-actions#215
• Frontend: Replace Lerna with Nx release grafana#85403

[jackw]

@kminehart @aangelisc could I get some assistance with the fileexists utility and the █ [0.00s] ERROR file it spits out? Slack conversation here for context. I'm quite keen to pick this work back up and get it merged but I don't have the dagger know how to clean that up. 🙏

[kminehart]

After getting permission from @jackw I updated his branch here to change the approach. The biggest thing I changed was avoiding places where we have to execute the DAG in order to continue, which is basically any function that requires a ctx.

While it's a bit ugly to do these types of conditionals in bash, it has a number of advantages, almost all around caching. Now, if nothing has changed on the frontend, the results will stay the same. Plus, the dagger server won't complain about us trying to get a file that doesn't exist 😂

[aangelisc]

LGTM, it's still readable and straightforward to understand

[jackw]

Thanks for helping me out here @kminehart. I've left a comment related to the bash logic as I'm not sure these changes are gonna work with the associated Grafana branch.