From 2930506687bb04ef0facffb71dfc640adfea85e4 Mon Sep 17 00:00:00 2001
From: LanikSJ <laniksj@gmail.com>
Date: Sun, 21 Jan 2018 11:07:48 -0800
Subject: [PATCH] Update Terraform Completion

---
 .../available/terraform.completion.bash       | 49 +++++++++++--------
 1 file changed, 29 insertions(+), 20 deletions(-)

diff --git a/completion/available/terraform.completion.bash b/completion/available/terraform.completion.bash
index 807a709a..11985f1d 100644
--- a/completion/available/terraform.completion.bash
+++ b/completion/available/terraform.completion.bash
@@ -1,26 +1,35 @@
 #!/usr/bin/env bash
 # Bash Terraform completion
+# Source: https://gist.github.com/cornfeedhobo/8bc08747ec3add1fc5adb2edb7cd68d3
 
-_terraform()
-{
-   local cmds cur colonprefixes
-   cmds="apply destroy fmt get graph import init \
-      output plan push refresh remote show taint \
-      untaint validate version state"
+_terraform() {
+  local cur prev words cword opts
+  _get_comp_words_by_ref -n : cur prev words cword
+  COMPREPLY=()
+  opts=""
 
-   COMPREPLY=()
-   cur=${COMP_WORDS[COMP_CWORD]}
-   # Work-around bash_completion issue where bash interprets a colon
-   # as a separator.
-   # Work-around borrowed from the darcs work-around for the same
-   # issue.
-   colonprefixes=${cur%"${cur##*:}"}
-   COMPREPLY=( $(compgen -W '$cmds'  -- $cur))
-   local i=${#COMPREPLY[*]}
-   while [ $((--i)) -ge 0 ]; do
-      COMPREPLY[$i]=${COMPREPLY[$i]#"$colonprefixes"}
-   done
+  if [[ ${cur} == -* ]] ; then
+    compopt -o nospace
+  fi
+
+  if [[ ${cword} -eq 1 ]] ; then
+    if [[ ${cur} == -* ]] ; then
+      opts="--help --version"
+    else
+      opts="$(terraform --help | grep -vE '(usage|Available|^$)' | awk '{print $1}')"
+    fi
+  fi
+
+  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