From b7ccd0267202039d01ffccc63798d680a75796de Mon Sep 17 00:00:00 2001
From: ssj17vegeta <ssj17vegeta@gmail.com>
Date: Wed, 7 Sep 2022 18:47:15 +0200
Subject: [PATCH] Support env vars to define filePattern of
 BinaryFileParameterFactory.

---
 .../BinaryFileParameterFactory.java                  | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/main/java/hudson/plugins/parameterizedtrigger/BinaryFileParameterFactory.java b/src/main/java/hudson/plugins/parameterizedtrigger/BinaryFileParameterFactory.java
index 7a05a480..f685a7c5 100644
--- a/src/main/java/hudson/plugins/parameterizedtrigger/BinaryFileParameterFactory.java
+++ b/src/main/java/hudson/plugins/parameterizedtrigger/BinaryFileParameterFactory.java
@@ -1,5 +1,7 @@
 package hudson.plugins.parameterizedtrigger;
 
+import hudson.EnvVars;
+
 import hudson.Extension;
 import hudson.FilePath;
 import hudson.model.AbstractBuild;
@@ -55,18 +57,24 @@ public NoFilesFoundEnum getNoFilesFoundAction() {
     public List<AbstractBuildParameters> getParameters(AbstractBuild<?, ?> build, TaskListener listener) throws IOException, InterruptedException, AbstractBuildParameters.DontTriggerException {
         List<AbstractBuildParameters> result = new ArrayList<>();
         FilePath workspace = build.getWorkspace();
+
+        EnvVars env = build.getEnvironment(listener);
+
         if (workspace == null) {
             throw new IOException("Failed to get workspace");
         }
         try {
             // save them into the master because FileParameterValue might need files after the agent workspace have disappeared/reused
             FilePath target = new FilePath(build.getRootDir()).child("parameter-files");
-            int n = workspace.copyRecursiveTo(getFilePattern(), target);
+
+            String fPattern = env.expand(getFilePattern());
+
+            int n = workspace.copyRecursiveTo(fPattern, target);
 
             if (n==0) {
                 noFilesFoundAction.failCheck(listener);
             } else {
-                for(final FilePath f: target.list(getFilePattern())) {
+                for(final FilePath f: target.list(fPattern)) {
                     LOGGER.fine("Triggering build with " + f.getName());
 
                     result.add(new AbstractBuildParameters() {