Use HOME env variable in brew caller scripts

bin/azw-setup-user

@@ -55,9 +55,17 @@ function downloadHomebrew() {
 	popd -q
 }
 
+function getCanonicalBrewPath() {
+	local brewPath=${homebrew_directory}/bin/brew
+	if [[ $brewPath == $HOME* ]]; then
+		brewPath="\${HOME}${brewPath#$HOME}"
+	fi
+	echo $brewPath
+}
+
 function createBrewCallerScript() {
 	local cmdPath=${HOME}/bin/brew
-	local brewPath=${homebrew_directory}/bin/brew
+	local brewPath=`getCanonicalBrewPath`
 	[[ -f ${cmdPath} ]] && rm ${cmdPath}
 	mkdir -p ${cmdPath:h}
 	cat <<- BREWCALLER > ${cmdPath}
@@ -74,13 +82,13 @@ function createBrewCallerScript() {
 }
 
 function createBrewPeriodicScript() {
-	local brewCallerPath=${HOME}/bin/brew
+	local brewPath=`getCanonicalBrewPath`
 	local cmdPath=${HOME}/bin/brew-periodic
 	[[ -f ${cmdPath} ]] && rm ${cmdPath}
 	mkdir -p ${cmdPath:h}
 	cat <<- BREWCALLER > ${cmdPath}
 	#!/usr/bin/env zsh
-	local brew='${brewCallerPath}'
+	local brew='${brewPath}'
 	\$brew update
 	\$brew upgrade --greedy
 	\$brew cleanup