Add support for setting a custom working-directory.

lib/main.js

@@ -60,6 +60,12 @@ function run() {
                 console.log(`using emulator build: ${emulatorBuildInput}`);
             }
             const emulatorBuild = !emulatorBuildInput ? undefined : emulatorBuildInput;
+            // custom working directory
+            const workingDirectoryInput = core.getInput('working-directory');
+            if (workingDirectoryInput) {
+                console.log(`custom working directory: ${workingDirectoryInput}`);
+            }
+            const workingDirectory = !workingDirectoryInput ? undefined : workingDirectoryInput;
             // custom script to run
             const scriptInput = core.getInput('script', { required: true });
             const scripts = script_parser_1.parseScript(scriptInput);
@@ -83,6 +89,10 @@ function run() {
             java_version_manager_1.setJavaHome(defaultJavaHome);
             // execute the custom script
             try {
+                // move to custom working directory if set
+                if (workingDirectory) {
+                    process.chdir(workingDirectory);
+                }
                 for (const script of scripts) {
                     yield exec.exec(`sh -c \\"${script}"`);
                 }