Parametrize master branch to $default-branch

[teutat3s]

Thank you for making this wonderful monitoring tool!

It would be great if the default branch wouldn't need to be hard-coded to master but could rather be parametrized during action runtime.
E.g. here: https://github.com/upptime/uptime-monitor/blob/d2fddfb23076b157f9e8d8f642e7002bb97667a1/src/summary.ts#L102

That way if someone were to choose the main branch as default branch, links like https://github.com/upptime/upptime/commits/master/history/google.yml could still work and not turn into 404's.

I don't know if this is possible though, because it seems the actions get released with that default branch name hard-coded, and I didn't find a way to set the current $default-branch in the actions source-code during running workflows yet.

Maybe someone else has got a solution to this idea?

[AnandChowdhary]

I've just pushed a fix for this. We now use HEAD instead of master, meaning that it will use the default branch. For example, https://github.com/upptime/upptime/commits/HEAD/history/google.yml redirects to https://github.com/upptime/upptime/commits/master/history/google.yml.