blackbox_addadmin.sh: NEW: still untested.

blackbox_common.sh: Add comments.

bin/blackbox_addadmin.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+set -e
+
+cd keyrings/live
+touch blackbox-admins.txt
+sort  -fdu -o blackbox-admins.txt <(echo "$1") blackbox-admins.txt

bin/blackbox_common.sh

@@ -16,6 +16,9 @@ function fail_if_bad_environment() {
 
   :
 
+  # TODO: Consider: cd $(git rev-parse --show-toplevel)
+  # And: hg root
+
   ## Are we in the base directory.
   #if [[ ! $(pwd) =~ \/puppet$ ]]; then
   #  echo 'ERROR: Please run this script from the base directory.'