bash interpolation inside shots.yml

[spencerc99]

Hi there! thanks so much for this awesome library. I've been using it to archive photos of my website every day to keep a history.

One thing I'm having trouble with is bash interpolation inside shots.yml for a multi-shot set-up. Basically, I want to configure the command to output to a folder with the current date as the file name. Here's an example of what that looks like for an item inside shots.yml

- url: https://spencerchang.me
  output: personal-website/$(date '+%Y-%m-%d' | sed 's/-0\([0-9]\)-/-\1-/').png
  ...

That output works fine inside my terminal but interprets it literally whenever I run shot-scraper multi. I've tried surrounding it in different variations of quotes and escaping without luck, so wanted to check to see if this is supported?

[spencerc99]

Okay, looking through the code and given #36 it seems this doesn't work, and python's standard subprocess.run doesn't support interpolation :(