make dirs

src/main/java/io/jenkins/plugins/jfrog/JfStep.java

@@ -97,6 +97,7 @@ protected String run() throws Exception {
             EnvVars env = getContext().get(EnvVars.class);
             Run<?, ?> run = getContext().get(Run.class);
 
+            workspace.mkdirs();
             boolean isWindows = !launcher.isUnix();
             String jfrogBinaryPath = getJFrogCLIPath(env, isWindows);
             boolean passwordStdinSupported = isPasswordStdinSupported(workspace, env, launcher, jfrogBinaryPath);
@@ -144,6 +145,7 @@ protected String run() throws Exception {
         public boolean isPasswordStdinSupported(FilePath workspace, EnvVars env, Launcher launcher, String jfrogBinaryPath) throws IOException, InterruptedException {
             TaskListener listener = getContext().get(TaskListener.class);
             JenkinsBuildInfoLog buildInfoLog = new JenkinsBuildInfoLog(listener);
+
             boolean isPluginLauncher = launcher.getClass().getName().contains("org.jenkinsci.plugins");
             if (isPluginLauncher) {
                 buildInfoLog.info("Launcher is a plugin launcher. Password stdin is not supported.");
@@ -160,7 +162,10 @@ public boolean isPasswordStdinSupported(FilePath workspace, EnvVars env, Launche
         }
 
         static String getJFrogCLIPath(EnvVars env, boolean isWindows) {
+            // JFROG_BINARY_PATH is set according to the master OS. If not configured, the value of jfrogBinaryPath will
+            // eventually be 'jf' or 'jf.exe'. In that case, the JFrog CLI from the system path is used.
             String jfrogBinaryPath = Paths.get(env.get(JFROG_BINARY_PATH, ""), Utils.getJfrogCliBinaryName(isWindows)).toString();
+            // Modify jfrogBinaryPath according to the agent's OS
             return isWindows ?
                     FilenameUtils.separatorsToWindows(jfrogBinaryPath) :
                     FilenameUtils.separatorsToUnix(jfrogBinaryPath);