Terraform workspaces in fish shell

fish_prompt

# Edit your fish prompt with `funced fish_prompt` and
# add the following to a desired place in the function.
# Save the prompt after editing with `funcsave fish_prompt`.

# Set a variable for workspace color.
set -l tfworkspace_color (set_color green)

# Append the workspace name at the current prompt position if
# the directory contains a .terraform subdirectory
if test -d .terraform
  set workspace (terraform workspace show ^/dev/null)
  echo -n -s " " $tfworkspace_color "[" $workspace "]" $normal_color
end