Better Molecule "dependency" Experience

molecule.yml

# Configure the "dependency" action.
dependency:
  name: galaxy
  
  # Set 'ansible-galaxy install' command line options
  options:
  
    # Turn off '--force' option so 'ansible-galaxy' doesn't re-download the files every time you run 'molecule'.
    force: false

    # Make development of dependencies easier by keeping version data.
    keep-scm-meta: true

    # Put roles right to this one. Reduce possible role locations.
    roles-path: ../

    # The 'ansible-galaxy' command considers the pre-existence of a role's folder an "error". 
    # That command and 'molecule' will exit with failure if this flag and '--force' is not set.
    # This setup sets 'ignore-errors' to 'false' when run in Travis to make sure that automated tests will catch problems,
    # but it defaults to 'true' so it runs quickly for local developers.
    ignore-errors: ${GALAXY_IGNORE_ERRORS:-true}