Add output parameters for the tool path and version

This allows calling the action multiple times in the
same job and retrieving the path and/or version in
other steps.

Fixes #65

__tests__/verify-java.ps1

@@ -9,3 +9,23 @@ if (!$java_version.Contains($args[0]))
 {
   throw "Unexpected version"
 }
+
+if ($args.Count -lt 2 -or !$args[1])
+{
+  throw "Must supply java path argument"
+}
+
+if ($args[1] -ne $Env:JAVA_HOME)
+{
+  throw "Unexpected path"
+}
+
+if ($args.Count -lt 3 -or !$args[2])
+{
+  throw "Must supply java version argument"
+}
+
+if ($args[0] -ne $args[2])
+{
+  throw "Unexpected version"
+}

__tests__/verify-java.sh

@@ -1,13 +1,33 @@
 #!/bin/sh
 
 if [ -z "$1" ]; then
-  echo "Must supply java version argument"
+  echo "::error::Must supply java version argument"
   exit 1
 fi
 
 java_version="$(java -version 2>&1)"
 echo "Found java version: $java_version"
 if [ -z "$(echo $java_version | grep --fixed-strings $1)" ]; then
-  echo "Unexpected version"
+  echo "::error::Unexpected version"
+  exit 1
+fi
+
+if [ -z "$2" ]; then
+  echo "::error::Must supply java path argument"
+  exit 1
+fi
+
+if [ "$2" != "$JAVA_HOME" ]; then
+  echo "::error::Unexpected path"
+  exit 1
+fi
+
+if [ -z "$3" ]; then
+  echo "::error::Must supply java version argument"
+  exit 1
+fi
+
+if [ "$1" != "$3" ]; then
+  echo "::error::Unexpected version"
   exit 1
 fi