/usr/sbin/blend-role is in blends-common 0.6.96.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75  | #!/bin/bash
#
# $Id$
usage () {
   echo "Usage:  `basename $0` <action> <Blend> [<role>]"
   echo "action: add|del"
   echo "Blend:  `getBlendList|tr ' ' '|'`"
   echo "role:   `getBlendList|tr ' ' '|'` (default: Blend name)"
}
# the base dir for Blend conffiles, where script expects to find dirs named like
# each registered Blend 
CONFBASE=${CONFBASE:-/etc/blends}
. ${CONFBASE}/blends.conf
# Check consistency of passed arguments
if [ $# -eq 0 ]; then
   usage
   exit 67 # EX_USAGE
fi
if [ "`toLower $1`" != "add" -a "`toLower $1`" != "del" ] ; then
   echo "Missing or wrong action name."
   echo
   usage
   exit 67 # EX_USAGE
fi
if [ -z "$2" ] ; then
   echo "Missing Blend name."
   echo
   usage
   exit 67 # EX_USAGE
fi
ACTION=`toLower $1`
BLEND=$2
ROLE=${3:-${BLEND}}
# Now that we know the selected Blend, we can check if there is a local
# configuration for it (ie differnt backend from the default one)
test -n "${BLEND}" -a  -f ${CONFBASE}/${BLEND}/${BLEND}.conf &&
	. ${CONFBASE}/${BLEND}/${BLEND}.conf
if [ -n "${DBBACKEND}" ]; then
	set -e
	checkBlend ${BLEND} || blendFail $? "Debian Pure Blend ${BLEND} does not exist"
	if [ "${ACTION}" = "add" ]; then
		checkBlend ${BLEND} || blendFail $? "Blend ${BLEND} does not exist"
		checkRole ${ROLE} && blendFail $? "Role ${ROLE} currently exist"
		checkRoleInBlend ${BLEND} ${ROLE} || \
			blendFail $? "Blend (${BLEND}) and Role (${ROLE}) are not correct or incompatible with the selected backend"
		addRole ${BLEND} ${ROLE} || \
			blendFail $? "Failed to add role ${ROLE}"
	elif [ "${ACTION}" = "del" ]; then
		checkBlend ${BLEND} || blendFail $? "Blend ${BLEND} doesn't exist"
		checkRole ${ROLE} || blendFail $? "Role ${ROLE} doesn't exist"
		checkRoleInBlend ${BLEND} ${ROLE} || \
			blendFail $? "Blend (${BLEND} and Role (${ROLE}) are not correct"
		delRole ${BLEND} ${ROLE} || \
			blendFail $? "Failed to remove role ${ROLE}"
		blendLog Role ${ROLE} successfully registered in Blend ${BLEND}
	fi
	set +e
else
	# EX_USAGE
	blendFail 67 "You chose to not use Roles"
fi
 |