add plugin to set java home per directory

.zimrc

@@ -6,6 +6,7 @@ zmodule crater2150-zsh/chroma-z
 
 zmodule $ZDOTDIR/plugins/tmpsrc
 zmodule $ZDOTDIR/plugins/pyenv
+zmodule $ZDOTDIR/plugins/cs-java-home
 
 zmodule $ZDOTDIR/plugins/highlight-config
 zmodule zsh-users/zsh-syntax-highlighting

plugins/cs-java-home/cs-java-home.plugin.zsh

@@ -0,0 +1,41 @@
+typeset -a chpwd_functions __chromaz_extra_left
+
+SYSTEM_JAVA_HOME=${CS_FORMER_JAVA_HOME:-$JAVA_HOME}
+
+local cs_jvm_id
+local cs_java_home
+
+remove-from-path() {
+	for elem in $@; do
+		path=("${(@)path:#$elem}")
+	done
+}
+
+cs-set-java-home() {
+	local dir=${1:-${PWD:a}}
+	if [[ $dir == / ]]; then 
+		export JAVA_HOME=${SYSTEM_JAVA_HOME}
+		remove-from-path $cs_java_home/bin
+		cs_jvm_id=
+		return
+	fi
+	if [[ -e $dir/.jvm ]]; then
+		cs_jvm_id=$(<$dir/.jvm)
+		#echo "Setting Java version to ${cs_jvm_id}"
+		cs_java_home=$(cs java-home --jvm ${cs_jvm_id})
+		path=( $cs_java_home/bin $path )
+		export JAVA_HOME=${cs_java_home}
+	else
+		cs-set-java-home ${dir:h}
+	fi
+
+	#	
+}
+
+cs-current-java() {
+	echo ${cs_jvm_id:+JVM: }${cs_jvm_id}
+}
+
+chpwd_functions+=cs-set-java-home
+__chromaz_extra_left+=cs-current-java
+cs-set-java-home