salt-wrapper.sh
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salt-wrapper.sh
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	#!/bin/sh

	# -------------------------------------------------------------
	# Salt wrapper
	# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
	# Created: 2016-04-10
	# License: BSD-2-Clause
	# Usage: salt-wrapper salt-call --local state.highstate
	# -------------------------------------------------------------

	# -------------------------------------------------------------
	# Helper functions
	#
	# :: contains
	# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

	# contains(string, substring)
	#
	# Returns 0 if the specified string contains the specified substring,
	# otherwise returns 1.
	# See: https://stackoverflow.com/a/8811800/1930997
	contains() {
	string="$1"
	substring="$2"
	if test "${string#*$substring}" != "$string"
	then
	return 0 # $substring is in $string
	else
	return 1 # $substring is not in $string
	fi
	}

	# -------------------------------------------------------------
	# Wrapper code
	# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

	CONFIG_DIR=$(salt-get-config-dir)
	CODE=$?
	if [ $CODE -ne 0 ]; then
	exit $CODE
	fi

	EXECUTABLE=$1
	shift

	# The default user is salt, but if we need to target the Salt
	# master without a minion running, we need to run as root.
	SALT_USER=salt
	if [ "$EXECUTABLE" = "salt-call" ]; then
	contains "$*" "--local" && SALT_USER=root
	fi

	sudo -u $SALT_USER "$EXECUTABLE" --config-dir="$CONFIG_DIR" "$@"