perf(ci): reduce build memory and CPU allocations

Scale down memory limits and parallelization settings across CI build pipeline. Reduce heap from 8g to 4g, metaspace from 1g to 512m, worker count from 4 to 2, and CMAKE build parallel level from 8 to 4. Remove Gradle caching and update web export to use explicit NODE_OPTIONS for memory allocation. These optimizations reduce resource usage while maintaining stable builds.

.gitea/workflows/build.yml

@@ -99,12 +99,11 @@ jobs:
     container:
       image: reactnativecommunity/react-native-android:latest
     env:
-      GRADLE_OPTS: "-Dorg.gradle.daemon=false -Dorg.gradle.parallel=true -Dorg.gradle.workers.max=4 -Xmx8g -XX:MaxMetaspaceSize=1g -XX:+UseG1GC -XX:SoftRefLRUPolicyMSPerMB=0 -XX:ReservedCodeCacheSize=512m"
-      _JAVA_OPTIONS: "-Xmx8g -XX:MaxMetaspaceSize=1g -XX:+UseG1GC -XX:SoftRefLRUPolicyMSPerMB=0 -XX:ReservedCodeCacheSize=512m"
-      NODE_OPTIONS: "--max-old-space-size=8192"
+      GRADLE_OPTS: "-Dorg.gradle.daemon=false -Dorg.gradle.parallel=false -Dorg.gradle.workers.max=2 -Xmx4g -XX:MaxMetaspaceSize=512m -XX:+UseG1GC -XX:SoftRefLRUPolicyMSPerMB=0 -XX:ReservedCodeCacheSize=256m"
+      _JAVA_OPTIONS: "-Xmx4g -XX:MaxMetaspaceSize=512m -XX:+UseG1GC -XX:SoftRefLRUPolicyMSPerMB=0 -XX:ReservedCodeCacheSize=256m"
+      NODE_OPTIONS: "--max-old-space-size=4096"
       NODE_ENV: "production"
-      NDK_NUM_JOBS: "4"
-      CMAKE_BUILD_PARALLEL_LEVEL: "8"
+      CMAKE_BUILD_PARALLEL_LEVEL: "4"
       GRADLE_USER_HOME: /root/.gradle
     permissions:
       contents: read
@@ -126,17 +125,6 @@ jobs:
       - name: Install dependencies
         run: npm ci
 
-      - name: Cache Gradle
-        uses: actions/cache@v4
-        with:
-          path: |
-            ~/.gradle/caches
-            ~/.gradle/wrapper
-            ~/.android/build-cache
-          key: ${{ runner.os }}-gradle-${{ hashFiles('package-lock.json') }}
-          restore-keys: |
-            ${{ runner.os }}-gradle-
-
       - name: Generate Android native project
         run: npx expo prebuild --platform android
 
@@ -243,10 +231,10 @@ jobs:
           # Update gradle.properties (without secrets for better cache hit rate)
           cat > gradle.properties << 'PROPS_EOF'
           org.gradle.daemon=false
-          org.gradle.parallel=true
+          org.gradle.parallel=false
           org.gradle.configureondemand=true
-          org.gradle.workers.max=4
-          org.gradle.jvmargs=-Xmx8g -XX:MaxMetaspaceSize=1g -XX:+UseG1GC -XX:SoftRefLRUPolicyMSPerMB=0 -XX:ReservedCodeCacheSize=512m -XX:+HeapDumpOnOutOfMemoryError
+          org.gradle.workers.max=2
+          org.gradle.jvmargs=-Xmx4g -XX:MaxMetaspaceSize=512m -XX:+UseG1GC -XX:SoftRefLRUPolicyMSPerMB=0 -XX:ReservedCodeCacheSize=256m -XX:+HeapDumpOnOutOfMemoryError
           android.enableJetifier=false
           android.useAndroidX=true
           hermesEnabled=true
@@ -278,7 +266,7 @@ jobs:
         run: |
           cd android
           chmod +x gradlew
-          ./gradlew :app:assembleRelease -PreactNativeArchitectures=arm64-v8a --max-workers=4 --parallel
+          ./gradlew :app:assembleRelease -PreactNativeArchitectures=arm64-v8a --max-workers=2
 
       - name: Upload APK artifact
         uses: actions/upload-artifact@v3

Dockerfile.web

@@ -6,7 +6,7 @@ COPY package.json package-lock.json ./
 RUN npm ci
 
 COPY . .
-RUN npx expo export --platform web --output-dir dist-web
+RUN NODE_OPTIONS="--max-old-space-size=2048" node /app/node_modules/.bin/expo export --platform web --output-dir dist-web
 
 FROM nginx:1.27-alpine
 

plugins/withCmakeJobLimit.js

@@ -2,7 +2,7 @@ const { withDangerousMod } = require('@expo/config-plugins');
 const fs = require('fs');
 const path = require('path');
 
-const MAX_JOBS = '8';
+const MAX_JOBS = '4';
 
 // React Native's hermes-engine build hardcodes
 //   Runtime.getRuntime().availableProcessors()