Figure out a way to set global/job-wide env vars

[meeDamian]

Currently the options are (they all suck):

1. Inject variables to workflow files in a script run before each commit
   • ex: meeDamian/simple-qemu/scripts/generate-workflows.sh#L28
   • cons: complex; magic; gotta remember to run it each time.
2. Use jobs.<job>.env
   • ex: meeDamian/github-actions-bugs/.github/workflows/job-env-vars.yml#L20
   • cons: static (can't set it to anything dynamic); needs to be hardcoded…
   • discussion: https://github.community/t5/GitHub-Actions/Support-global-environment-variables/m-p/30488/highlight/true#M445
3. Use step output
   • ex: meeDamian/docker-bitcoind/.github/workflows/on-tag.yml#L28-L37, and then used: #L57, #L65, or #L66
   • cons: inefficient (lots to write); not clear; hacky; ugly
4. Repeat a lot
   • ex: meeDamian/docker-bitcoind/.github/workflows/on-tag.yml#L123, #L132, #L138, #L146
   • cons: Brainded repetition; Easy to make mistake; changing it requires changes everywhere; hard to see when one is different…
5. Use secrets 😅
   • no examples…
   • cons: all occurrences hidden…; nobody knows what's actually happening; doesn't work on forked repos(discussion)

[meeDamian]

Solution has been found here, and it's:

echo ::set-env name=action_state::yellow

Docs: https://help.github.com/en/articles/development-tools-for-github-actions#set-an-environment-variable-set-env
Example: https://github.com/meeDamian/github-actions-bugs/blob/3045c70062faedced72ed33357ed2f7f31a4372f/.github/workflows/set-env-var-in-step.yml

I'll close this issue when code is updated.