Added support for nushell (#209)

README.md

@@ -77,6 +77,10 @@ For fish shell, instead use:
 
 `. ~/.asdf/plugins/java/set-java-home.fish`
 
+For nushell shell, instead use:
+
+`source ~/.asdf/plugins/java/set-java-home.nu`
+
 For xonsh shell, instead use:
 
 `source ~/.asdf/plugins/java/set-java-home.xsh`

set-java-home.nu

@@ -0,0 +1,11 @@
+def asdf_update_java_home [] {
+    let $java_path = (asdf which java)
+
+    if $java_path {
+        let $full_path = (realpath $java_path | lines | nth 0 | str trim)
+
+        let $java_home = ($full_path | path dirname | path dirname)
+        let-env JAVA_HOME = $java_home
+        let-env JDK_HOME = $java_home
+    }
+}