Templating should be file-type aware.

[indexzero]

Currently this will not work:

templated-script.sh

  for version in {{ versions }}; do
    # do something
  done

Because with:

  {
    "versions": ['a', 'b', 'c']
  }

it will end up templated as:

templated-script.sh

  for version in ["a", "b", "c"]; do
    # do something
  done

instead of:

templated-script.sh

  for version in "a", "b", "c"; do
    # do something
  done