Run a ZIP optimizer to get ~10% of ZIP size reduction

.github/workflows/check.yml

@@ -95,6 +95,8 @@ jobs:
     - run: |
         git config --global user.name github-actions
         git config --global user.email 41898282+github-actions[bot]@users.noreply.github.com
+    - name: Install advzip for ZIP optimization
+      run: apt install advancecomp
     - name: Setup Gradle
       uses: gradle/actions/setup-gradle@v3
       with:
@@ -118,7 +120,7 @@ jobs:
         VERSION_NAME: ${{ fromJson(steps.split_version.outputs.result).version_name }}
         VERSION_TYPE: ${{ fromJson(steps.split_version.outputs.result).version_type }}
       if: ${{ always() }}
-      run: ./gradlew :$VERSION_NAME:makeZip -Ptype=$VERSION_TYPE
+      run: ./gradlew :$VERSION_NAME:makeZip -Ptype=$VERSION_TYPE -Poptimize_zip=true
     - name: Upload Zip as Artifact
       if: ${{ always() }}
       uses: actions/upload-artifact@v4

build.gradle

@@ -781,7 +781,8 @@ subprojects {
         }
     }
 
-    task makeZip(type: Zip, dependsOn: [generateConfiguration]) {
+    def makeZip = tasks.register('makeZip', Zip) {
+        dependsOn generateConfiguration
         archiveBaseName = rootProject.name
         archiveVersion = project.version
         destinationDirectory = file(PATH_BUILD + '/distributions')
@@ -815,6 +816,18 @@ subprojects {
         }
     }
 
+    // This uses advzip: https://linux.die.net/man/1/advzip
+    def optimizeZip = tasks.register('optimizeZip', Exec) {
+        description = "Optimizes the NeoForm ZIP-file in-place"
+        commandLine "advzip", "--recompress", "-k", "-4", makeZip.flatMap(Zip::getArchiveFile)
+        if (optimize_zip) {
+            mustRunAfter makeZip
+        }
+    }
+    if (optimize_zip) {
+        makeZip.configure { finalizedBy optimizeZip }
+    }
+
     def componentMaker = objects.newInstance(ComponentMaker)
     def neoformComponent = componentMaker.componentFactory.adhoc('neoform')
     components.add(neoformComponent)

gradle.properties

@@ -1,3 +1,6 @@
 org.gradle.parallel=true
 org.gradle.caching=true
-org.gradle.configuration-cache=true
+org.gradle.configuration-cache=true
+
+# Run ZIP optimizations using advzip, which requires the tool to be installed
+optimize_zip=false