Add box update command to completion

CONTRIBUTING.md

@@ -0,0 +1,10 @@
+Contributing to vagrant-bash-completion
+=======================================
+
+To make the history easier to read and understand, this repo no longer
+does merge commits. Please ensure that when you submit a PR it's been
+rebased on to the latest commit on the `master` branch.
+
+The maintainer currently tests only on GNU/Linux. In the PR you should
+note how you tested your change, particularly if it's for a platform
+other than that.

README.rst

@@ -1,8 +1,14 @@
-Getting stuff merged
-====================
+The Fork
+========
 
-If you have a pull request you want merged, shout at me
-on Twitter [at]kuramanga or via email kura[at]kura[dot]io
+This has been forked from [kura's repo][kura-vbc]. At the time of this
+commit that repo had [four open PRs][kura-pr] the oldest of which was
+a year old. I tried to contact him by e-mail but his domain
+(`kura.io`) has expired. Thus, I've forked this, brought in all open
+PRs and will be merging any further PRs offered to this repo.
+
+[kura-vbc]: https://github.com/kura/vagrant-bash-completion
+[kura-pr]: https://github.com/kura/vagrant-bash-completion/pulls
 
 
 Installation

etc/bash_completion.d/vagrant

@@ -71,7 +71,7 @@ _vagrant() {
     then
         case "$prev" in
             "init")
-                local box_list=$(find $HOME/.vagrant.d/boxes -mindepth 1 -maxdepth 1 -type d -exec basename {} \;|sed -e 's/-VAGRANTSLASH-/\//')
+                local box_list=$(find ${VAGRANT_HOME:-$HOME/.vagrant.d}/boxes -mindepth 1 -maxdepth 1 -type d -exec basename {} \;|sed -e 's/-VAGRANTSLASH-/\//')
                 COMPREPLY=($(compgen -W "${box_list}" -- ${cur}))
                 return 0
                 ;;
@@ -97,7 +97,7 @@ _vagrant() {
                 return 0
                 ;;
             "box")
-                box_commands="add help list remove repackage"
+                box_commands="add help list prune remove repackage update"
                 COMPREPLY=($(compgen -W "${box_commands}" -- ${cur}))
                 return 0
                 ;;
@@ -133,7 +133,7 @@ _vagrant() {
           "box")
               case "$prev" in
                   "remove"|"repackage")
-                      local box_list=$(find $HOME/.vagrant.d/boxes -mindepth 1 -maxdepth 1 -type d -exec basename {} \;|sed -e 's/-VAGRANTSLASH-/\//')
+                      local box_list=$(find ${VAGRANT_HOME:-$HOME/.vagrant.d}/boxes -mindepth 1 -maxdepth 1 -type d -exec basename {} \;|sed -e 's/-VAGRANTSLASH-/\//')
                       COMPREPLY=($(compgen -W "${box_list}" -- ${cur}))
                       return 0
                       ;;
@@ -150,4 +150,12 @@ _vagrant() {
       esac
     fi
 }
-complete -F _vagrant vagrant
+
+case $( uname -s | tr '[:upper:]' '[:lower:]' ) in
+    cygwin*|mingw*)
+        complete -F _vagrant vagrant.exe
+        ;;
+    *)
+        complete -F _vagrant vagrant
+        ;;
+esac