fixup! feat: create segment to display Terraform version

src/segments/terraform.bash

@@ -3,28 +3,32 @@
 tf_icon="${SEGMENTS_TF_ICON:-}"
 tf_extenstion="${TF_FILE_EXTENCION:-tf}"
 scanned_dirs="${SEGMENTS_TF_SCANNED_DIRS:-$PWD}"
-declare tf_version=
+declare tf_version=""
+
+_tf_available() {
+  command -v terraform
+}
 
 _get_terraform_version() {
   # when version managers are available, parse their
   # config files first before calling 'terraform version'
 
   # check for version files created by 'tfenv'
-  if [[ -n $(command -v tfenv) ]] && [[ -f $PWD/.terraform-version ]]; then
+  if [[ $(command -v tfenv) ]] && [[ -f $PWD/.terraform-version ]]; then
     tf_version="$(tr -d '\n' <.terraform-version)"
 
   # check for version files created by 'asdf'
   elif [[ $(command -v asdf) ]] && [[ -f $PWD/.tool-versions ]] && [[ "$(<.tool-versions)" =~ terraform.([0-9.]+) ]]; then
     tf_version="${BASH_REMATCH[1]}"
 
   # get version from terraform directly (slowest)
-  elif [[ -n $(command -v terraform) ]] && [[ "$(terraform -v)" =~ v([0-9.]+) ]]; then
+  elif [[ $(_tf_available) ]] && [[ "$(terraform -v)" =~ v([0-9.]+) ]]; then
     tf_version="${BASH_REMATCH[1]}"
   fi
 }
 
 segments::terraform() {
-  if [[ -n $(find "$scanned_dirs" -maxdepth 1 -name "*.${tf_extenstion}" -print -quit 2>/dev/null) ]]; then
+  if [[ $(_tf_available) ]] && [[ -n $(find ${scanned_dirs} -maxdepth 1 -name "*.${tf_extenstion}" -print -quit 2>/dev/null) ]]; then
     _get_terraform_version
     segment="$tf_icon $tf_version"
     print_themed_segment 'normal' "$segment"