Update Terraform Completion

completion/available/terraform.completion.bash

@@ -1,26 +1,35 @@
 #!/usr/bin/env bash
 # Bash Terraform completion
+# Source: https://gist.github.com/cornfeedhobo/8bc08747ec3add1fc5adb2edb7cd68d3
 
-_terraform()
+_terraform() {
-{
+  local cur prev words cword opts
-   local cmds cur colonprefixes
+  _get_comp_words_by_ref -n : cur prev words cword
-   cmds="apply destroy fmt get graph import init \
+  COMPREPLY=()
-      output plan push refresh remote show taint \
+  opts=""
-      untaint validate version state"
 
-   COMPREPLY=()
+  if [[ ${cur} == -* ]] ; then
-   cur=${COMP_WORDS[COMP_CWORD]}
+    compopt -o nospace
-   # Work-around bash_completion issue where bash interprets a colon
+  fi
-   # as a separator.
+
-   # Work-around borrowed from the darcs work-around for the same
+  if [[ ${cword} -eq 1 ]] ; then
-   # issue.
+    if [[ ${cur} == -* ]] ; then
-   colonprefixes=${cur%"${cur##*:}"}
+      opts="--help --version"
-   COMPREPLY=( $(compgen -W '$cmds'  -- $cur))
+    else
-   local i=${#COMPREPLY[*]}
+      opts="$(terraform --help | grep -vE '(usage|Available|^$)' | awk '{print $1}')"
-   while [ $((--i)) -ge 0 ]; do
+    fi
-      COMPREPLY[$i]=${COMPREPLY[$i]#"$colonprefixes"}
+  fi
-   done
+
+  if [[ ${cword} -gt 1 ]] ; then
+    if [[ ${cword} -eq 2 && ${prev} == '--help' ]] ; then
+      opts="$(terraform --help | grep -vE '(usage|Available|^$)' | awk '{print $1}')"
+    else
+      opts="$(terraform --help "${words[1]}" | grep '^ *-[a-z]' | awk '{print $1}' | awk -F '=' '{if ($0 ~ /=/) {print $1"="} else {print $1" "}}')"
+    fi
+  fi
+
+  COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
+  return 0
+}
 
-        return 0
-} &&
 complete -F _terraform terraform