Create a standalone `run` function

[GCBallesteros]

Is your feature request related to a problem? Please describe.
Running pgqueuer programatically, not from the CLI, is a bit inconvenient. It seems like the officially vetted version is to use the pgq run which is a typer CLI. To create our own CLI's around pgqueuer we have to wrap around this function and keep typer around so that the initialization of default parameters is correctly understood. It would be preferable to have a non-decorated run function and have cli.py wrap around it with typer. This exposes a clean entrypoint into pgqueuer.

Describe the solution you'd like
See above

Describe alternatives you've considered

1. Make my own version of the run function described above by copy/pasting the code inside cli.py:run
2. Just use typer

Additional context
See https://gist.github.com/GCBallesteros/f8c14c6dbb96601be6f0a37704356329 for an implementation of option 2.

[GCBallesteros]

This would be quite straightforward if @janbjorge is okay with the idea and wouldn't mind opening a PR for it.

[janbjorge]

Im open to explore, if its a small change and your up for it. Just open a PR and we can take it from there?

[janbjorge]

@GCBallesteros Do you want to give this a go? Trying to work out if i should wait for a PR before making a new release.

[GCBallesteros]

I’m on vacation and AFK at the moment. Please don’t wait on me for this.

[brassy-endomorph]

Could we expand this ticket too all the CLI functionality so that applications can programatically create/update/delete queues.

[janbjorge]

Could we expand this ticket too all the CLI functionality so that applications can programatically create/update/delete queues.

Would it solve your needs to use the lower-level Python APIs directly (e.g., pgqueuer.Queries plus the QueueManager/SchedulerManager helpers) instead of wrapping the CLI? Have you already tried those, or do you still prefer a dedicated programmatic layer that mirrors each CLI command?

[janbjorge]

@GCBallesteros @brassy-endomorph Could you try / review #572 ?