GitHub Actions - Open/Write to two groups in paralell - github-actions

Question

I'm creating a GitHub action, where I have two loops running in parallel, writing to the console.
Example:
async function loop(name) {
core.startGroup(name);
for (var i = 0; i < 10; i++) {
core.info(`[INFO] {${name}}: ${i} { type = log, task = ${name} }`);
await delay(1000); // delay = promise that wraps setTimeout
}
core.endGroup();
}
loop('a');
loop('b');
I expect each loop to write to its respective group
Instead, I see this in the job logs
Which isn't a surprise since loop('b') overrides the group opening.
Is there a way to write output to a specific group, even when running in parallel?

Answer 1

I couldn't reproduce your result using github-script, result here. Maybe it's fixed in that version. Here's the GH action I used:
name: "Checks loop"
on: [push]
jobs:
check_group_loop:
runs-on: ubuntu-latest
steps:
- name: Use Node.js
uses: actions/github-script#v3
with:
github-token: ${{secrets.GITHUB_TOKEN}}
script: |
function loop(name) {
core.startGroup(name);
for (var i = 0; i < 10; i++) {
core.info("[INFO] " + name + ": " + i );
}
core.endGroup();
}
loop('a');
loop('b');
Maybe you can show the whole action so that we can check?
Anyway, the problem seems to be the calls are asynchronous, so instead of using start/end, could you wrap loggging in a group