add second workflow job for python release

Author: TheApplePieGod

.github/workflows/release-engine.yml

@@ -17,8 +17,8 @@ env:
   IS_PUBLIC: NO
 
 jobs:
-  release:
-    name: Release
+  release-java:
+    name: Release Java
     runs-on: ubuntu-latest
     permissions:
       contents: read
@@ -92,3 +92,82 @@ jobs:
 
       - name: Upload specs
         run: gsutil -m rsync -a $OBJECT_ACL -r ./specs gs://$GCS_BUCKET/specs/${RELEASE_ARTIFACT_ID}/$RELEASE_VERSION
+  release-python:
+    name: Release Python
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      id-token: write
+
+    steps:
+      - uses: conda-incubator/setup-miniconda@v3
+        with:
+          python-version: 3.12
+
+      - name: Checkout branch
+        uses: actions/checkout@v3
+
+      - name: Inject release version
+        run: |
+          release_version=${GITHUB_REF#refs/*/}
+          release_version=${release_version#engine.}
+          echo "RELEASE_VERSION=$release_version" >> $GITHUB_ENV
+          echo "The release version is $release_version"
+
+      - name: Authenticate to Google Cloud Platform
+        uses: google-github-actions/auth@v1
+        with:
+          create_credentials_file: true
+          workload_identity_provider: projects/830784087321/locations/global/workloadIdentityPools/releases/providers/github-workflow
+          service_account: [email protected]
+
+      - name: Set up Google Cloud SDK
+        uses: 'google-github-actions/setup-gcloud@v1'
+
+      - name: Clone private maps
+        if: ${{ env.IS_PUBLIC != 'YES' }}
+        uses: actions/checkout@v3
+        with:
+          repository: battlecode/private-maps
+          token: ${{ secrets.CI_REPOSITORY_CLONE_PAT }}
+          path: private-maps
+      
+      - name: Inject private maps
+        if: ${{ env.IS_PUBLIC != 'YES' }}
+        run: |
+          source="private-maps/$RELEASE_ARTIFACT_ID"
+          dest="$RELEASE_ARTIFACT_ID/maps"
+          if [ -d "$source" ]; then
+            cp -r -i "$source/." "$dest/" < /dev/null &> private-maps-copy-log
+            if [ -s "private-maps-copy-log" ]; then
+              echo "FAILED! Public and private maps should not intersect."
+              cat private-maps-copy-log
+              exit 1
+            fi
+          fi
+          
+      - name: Build python package 
+        shell: bash -el {0} # Make sure conda is activated
+        run: |
+          conda info
+          python --version
+          pip install --upgrade build
+          SETUPTOOLS_SCM_PRETEND_VERSION=${RELEASE_VERSION} python -m build
+
+      - name: Determine access control
+        run: |
+          [[ "$IS_PUBLIC" = "YES" ]] && acl="public-read" || acl="project-private"
+          echo "OBJECT_ACL=$acl" >> $GITHUB_ENV
+          echo "Objects will be uploaded with ACL $acl"
+
+      - name: Upload python package to remote repository
+        run: |
+          mv *.tar.gz battlecode.tar.gz
+          gsutil -m cp -a $OBJECT_ACL battlecode.tar.gz gs://$GCS_BUCKET/maven/org/battlecode/${RELEASE_ARTIFACT_ID}-python/${RELEASE_VERSION}/
+        working-directory: ./dist
+
+      # TODO: docs?
+      #- name: Upload javadocs
+      #  run: |
+      #    unzip -d ${{ runner.temp }}/javadoc $HOME/.m2/repository/org/battlecode/$RELEASE_ARTIFACT_ID/$RELEASE_VERSION/*-javadoc.jar
+      #    gsutil -m rsync -a $OBJECT_ACL -r ${{ runner.temp }}/javadoc gs://$GCS_BUCKET/javadoc/$RELEASE_ARTIFACT_ID/$RELEASE_VERSION