bash completion

bash_completion

@@ -0,0 +1,82 @@
+#!/usr/bin/env bash
+
+# bash completion for Node Version Manager (NVM)
+
+__nvm_generate_completion()
+{
+  declare current_word
+  current_word="${COMP_WORDS[COMP_CWORD]}"
+  COMPREPLY=($(compgen -W "$1" -- "$current_word"))
+  return 0
+}
+
+__nvm_commands ()
+{
+  declare current_word
+  declare command
+
+  current_word="${COMP_WORDS[COMP_CWORD]}"
+
+  COMMANDS='\
+    help install uninstall use\
+    run ls list deactivate alias\
+    unalias copy-packages clear-cache version'
+
+    if [ ${#COMP_WORDS[@]} == 4 ]; then
+
+      command="${COMP_WORDS[COMP_CWORD-2]}"
+      case "${command}" in
+      alias)  __nvm_installed_nodes ;;
+      esac
+
+    else
+
+      case "${current_word}" in
+      -*)     __nvm_options ;;
+      *)      __nvm_generate_completion "$COMMANDS" ;;
+      esac
+
+    fi
+}
+
+__nvm_options ()
+{
+  OPTIONS=''
+  __nvm_generate_completion "$OPTIONS"
+}
+
+__nvm_installed_nodes ()
+{
+  __nvm_generate_completion "$(nvm_ls) $(__nvm_aliases)"
+}
+
+__nvm_aliases ()
+{
+  declare aliases
+  aliases=""
+  if [ -d $NVM_DIR/alias ]; then
+    aliases="`cd $NVM_DIR/alias && ls`"
+  fi
+  echo "${aliases}"
+}
+
+__nvm_alias ()
+{
+  __nvm_generate_completion "$(__nvm_aliases)"
+}
+
+__nvm ()
+{
+  declare previous_word
+  previous_word="${COMP_WORDS[COMP_CWORD-1]}"
+
+  case "$previous_word" in
+  use|run|ls|list|uninstall) __nvm_installed_nodes ;;
+  alias|unalias)  __nvm_alias ;;
+  *)              __nvm_commands ;;
+  esac
+
+  return 0
+}
+
+complete -o default -o nospace -F __nvm nvm