CLI tool that accepts a file path to a CircleCI YAML configuration file and outputs a list of images used in it.

Requirements:

• Read input a file path from Stdin
  • without quotes
  • with quotes
  • with spaces
• Support CircleCI configuration file
  • Version
    • v2.1 - Cloud, Server 3
    • v2.0 - Server 2
  • File formats - YAML, YML
• Output a list of images from the configuration file to Stdout
  • Sorted by <image name>:<version TAG>
    • <image name>
      • ascending alphabetical order
    • <version TAG>
      • descending sort
      • current and latest on top
      • numeric above
  • Every image from a new line
• Log errors return to Stderr when
  • file path is not provided
  • file path is not found
  • image in file is not found