Fix Windows run and merge tag+jar into version input

action.yml

@@ -8,32 +8,31 @@ branding:
 
 inputs:
 
-  tag:
-    description: 'The GitHub releases tag that points to JReleaser''s executable JAR file.'
+  version:
+    description: 'The version of JReleaser to download and execute.'
     default: 'early-access'
     required: true
 
-  jar:
-    description: 'The name of the executable JAR file to download and execute.'
-    default: 'jreleaser-tool-provider-0.1.0-SNAPSHOT.jar'
-    required: true
-
   arguments:
-    description: 'The arguments to be passed to JReleaser.'
+    description: 'The command-line arguments to be passed to JReleaser.'
     default: 'full-release'
     required: true
 
 runs:
   using: 'composite'
   steps:
-    - name: 'Initialize JReleaser'
+    - name: 'Download JReleaser'
       shell: bash
       run: |
-        echo "Initialize JReleaser"
-        wget https://github.com/jreleaser/jreleaser/releases/download/${{ inputs.tag }}/${{ inputs.jar }}
+        echo "::group::Download JReleaser"
+        JAR="jreleaser-tool-provider-${{ inputs.version }}.jar"
+        URL="https://github.com/jreleaser/jreleaser/releases/download/${{ inputs.version }}/$JAR"
+        java ${{ github.action_path }}/copy.java $URL $JAR
+        java -jar $JAR --version
         echo "::endgroup::"
-    - name: 'Launch JReleaser'
+    - name: 'Execute JReleaser'
       shell: bash
       run: |
-        echo "java -jar ${{ inputs.jar }} ${{ inputs.arguments }}"
-        java -jar ${{ inputs.jar }} ${{ inputs.arguments }}
+        JAR="jreleaser-tool-provider-${{ inputs.version }}.jar"
+        echo "java -jar $JAR ${{ inputs.arguments }}"
+        java -jar $JAR ${{ inputs.arguments }}

copy.java

@@ -0,0 +1,19 @@
+import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardCopyOption;
+
+class copy {
+  public static void main(String... args) throws Exception {
+    if (args.length != 2) {
+      System.err.println("Usage: java copy.java URL FILENAME");
+      System.exit(1);
+    }
+    var url = args[0];
+    try (var stream = new URL(url).openStream()) {
+      var file = Path.of(args[1]);
+      var size = Files.copy(stream, file, StandardCopyOption.REPLACE_EXISTING);
+      System.out.printf("%s << copied %d bytes << %s%n", file, size, url);
+    }
+  }
+}