Mention hash of jar in release notes and mention reproducibility in r…

…eadme

.github/workflows/robot.yml

@@ -41,6 +41,8 @@ jobs:
       - name: Run ANT tests
         if: matrix.java != 21
         run: ant test dist
+      - name: Get SHA-256 of ant-javacard.jar
+        run: echo "JARSUM=$(shasum -a 256 ant-javacard.jar | cut -d' ' -f 1)" >> "$GITHUB_ENV"
       - name: Deploy package or snapshot
         if: github.event_name != 'pull_request' && matrix.java == '11'
         run: ./mvnw -B -U deploy
@@ -52,5 +54,5 @@ jobs:
           files: |
             ant-javacard.jar
           fail_on_unmatched_files: true
-          body: Release ${{ github.ref_name }}
+          body: "Release ${{ github.ref_name }}, with SHA-256: `${{ env.JARSUM }}` (built with JDK-11)"
           prerelease: true # manually promoted

README.md

@@ -8,7 +8,7 @@ Have a consistent and concise build declaration for JavaCard applets, no matter
 
 ## Features
  * **[Do What I Mean](http://en.wikipedia.org/wiki/DWIM)**. You will [love it](#happy-users)!
- * **No dependencies**, no extra or unrelated downloads. Just **a ~50KB jar file**.
+ * **No dependencies**, no extra or unrelated downloads. Just **a ~50KB reproducible jar file**.
  * Supports **all available JavaCard SDK versions**: 2.1.2, 2.2.1, 2.2.2, 3.0.3, 3.0.4, 3.0.5, 3.1.0 and 3.2.0
    * Get one from [oracle.com](https://www.oracle.com/java/technologies/javacard-sdk-downloads.html) or use the [handy Github repository](https://github.com/martinpaljak/oracle_javacard_sdks)
  * **Works on all platforms** with LTS Java 1.8+: Windows, OSX, Linux.

build.xml

@@ -22,7 +22,9 @@
             <!-- It is possible to execute ant-javacard.jar... -->
             <manifest>
                 <attribute name="Main-Class" value="pro.javacard.ant.DummyMain"/>
+                <!-- Set dummy values for moving values, so that same jar could be built with slight variations in JDK/ant version-->
                 <attribute name="Created-By" value="ant-javacard build"/>
+                <attribute name="Ant-Version" value="unspecified"/>
             </manifest>
             <exclude name="/META-INF/maven/**"/>
         </jar>