chore: local build performance optimizations (#909)

* chore: local build performance optimizations

* Don't fail if base aar is missing

Author: davidliu

.github/workflows/android.yml

@@ -207,11 +207,44 @@ jobs:
         event-type: client-sdk-android-push
         client-payload: '{"ref": "${{ github.ref }}", "sha": "${{ github.sha }}"}'
 
+  diffuse_prep:
+    name: Diffuse prep (base AAR cache)
+    runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request'
+    outputs:
+      base_aar_cache_hit: ${{ steps.diffuse_base_lookup.outputs.cache-hit }}
+    steps:
+      - uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        id: diffuse_base_lookup
+        with:
+          path: client-sdk-android/diffuse-source-file
+          key: diffuse-${{ github.event.pull_request.base.sha }}
+          lookup-only: true
+
+      - uses: peter-evans/find-comment@b30e6a3c0ed37e7c023ccd3f1db5c6c0b0c23aad # v4.0.0
+        if: steps.diffuse_base_lookup.outputs.cache-hit != 'true' && github.event.pull_request.head.repo.full_name == github.repository
+        id: find_comment_cache_miss
+        with:
+          issue-number: ${{ github.event.pull_request.number }}
+          body-includes: Diffuse output
+
+      - uses: peter-evans/create-or-update-comment@e8674b075228eee787fea43ef493e45ece1004c9 # v5.0.0
+        if: steps.diffuse_base_lookup.outputs.cache-hit != 'true' && github.event.pull_request.head.repo.full_name == github.repository
+        with:
+          body: |
+            Diffuse output:
+
+            Base AAR cache miss. Please run the build job on main to generate the base AAR.
+          edit-mode: replace
+          comment-id: ${{ steps.find_comment_cache_miss.outputs.comment-id }}
+          issue-number: ${{ github.event.pull_request.number }}
+          token: ${{ secrets.GITHUB_TOKEN }}
+
   diffuse:
     runs-on: ubuntu-latest
-    if: ${{ github.event_name == 'pull_request' }}
+    if: ${{ github.event_name == 'pull_request' && needs.diffuse_prep.outputs.base_aar_cache_hit == 'true' }}
     name: Diffuse checker
-    needs: build
+    needs: [build, diffuse_prep]
     steps:
       - uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
         with:

gradle.properties

@@ -62,3 +62,8 @@ RELEASE_SIGNING_ENABLED=true
 livekitUrl=
 livekitApiKey=
 livekitApiSecret=
+
+org.gradle.configuration-cache=true
+kotlin.incremental=true
+org.gradle.configureondemand=true
+org.gradle.daemon=true