Refactor alpha.yml action

- Parameterized
- Removed dependency on third-party action EndBug/latest-tag

.github/workflows/alpha.yml

@@ -12,6 +12,11 @@ on:
   # Run this workflow manually from the Actions tab
   workflow_dispatch:
 
+# parameters
+env:
+  VARIANT: alpha
+  TAG: alpha
+  ZIP: app-alpha.zip
 
 jobs:
   build:
@@ -37,18 +42,20 @@ jobs:
         with:
           arguments: >
             build
-            assembleAlpha
+            assemble${{ env.VARIANT }}
 
-      - name: Zip apk # just remove the password here if you want to build the apk yourself
-        run: zip -j -P ${{ secrets.ALPHA_PASS }} app-alpha.zip app/build/outputs/apk/alpha/app-alpha.apk
+      - name: Zip ${{ env.VARIANT }} apk as ${{ env.ZIP }}
+        # just remove the password here if you want to build the apk yourself
+        run: zip -j -P ${{ secrets.ALPHA_PASS }} ${{ env.ZIP }} app/build/outputs/apk/${{ env.VARIANT }}/app-${{ env.VARIANT }}.apk
 
-      - name: Update alpha tag to latest commit
-        uses: EndBug/latest-tag@latest
-        with:
-          ref: alpha
+      - name: Update ${{ env.TAG }} tag to current commit
+        # equivalent to EndBug/latest-tag@latest but simpler
+        run: |
+          git tag --force ${{ env.TAG }}
+          git push --force origin tag ${{ env.TAG }}
 
-      - name: Upload zip to alpha release
+      - name: Upload ${{ env.ZIP }} to ${{ env.TAG }} release
         uses: softprops/action-gh-release@v1
         with:
-          tag_name: alpha
-          files: app-alpha.zip
+          tag_name: ${{ env.TAG }}
+          files: ${{ env.ZIP }}