Add task primaryPublishJar to generate only jars to be published

Author: emlun

.github/workflows/build.yml

@@ -72,10 +72,10 @@ jobs:
 
     - name: Check binary reproducibility
       run: |
-        ./gradlew clean jar
+        ./gradlew clean primaryPublishJar
         find . -name '*.jar' | xargs sha256sum | tee checksums.sha256sum
-        ./gradlew clean jar && sha256sum -c checksums.sha256sum
-        ./gradlew clean jar && sha256sum -c checksums.sha256sum
+        ./gradlew clean primaryPublishJar && sha256sum -c checksums.sha256sum
+        ./gradlew clean primaryPublishJar && sha256sum -c checksums.sha256sum
 
   publish-test-results:
     name: Publish test results

buildSrc/src/main/groovy/project-convention-archives.gradle

@@ -10,6 +10,10 @@ javadoc {
     options.addStringOption("charset", "UTF-8")
 }
 
+project.tasks.create("primaryPublishJar") {
+    dependsOn(project.tasks.jar)
+}
+
 project.tasks.withType(Jar.class) {
     manifest {
         attributes([