ci: build only unsigned debug apks on PR

Author: kavishdevar

.github/workflows/ci-android.yml

@@ -35,6 +35,7 @@ jobs:
           java-version: 21
       - uses: gradle/actions/setup-gradle@v4
       - name: Decode keystore
+        if: github.event_name != 'pull_request'
         run: echo "${{ secrets.RELEASE_KEYSTORE_FILE }}" | base64 --decode > android/release.keystore
       - name: Setup Android SDK
         uses: android-actions/setup-android@v3
@@ -43,14 +44,20 @@ jobs:
       - name: Install NDK
         run: sdkmanager "ndk;30.0.14904198"
       - name: Create local.properties
+        if: github.event_name != 'pull_request'
         run: |
           cat <<EOF > android/local.properties
           RELEASE_STORE_FILE=../release.keystore
           RELEASE_STORE_PASSWORD=${{ secrets.RELEASE_STORE_PASSWORD }}
           RELEASE_KEY_ALIAS=${{ secrets.RELEASE_KEY_ALIAS }}
           RELEASE_KEY_PASSWORD=${{ secrets.RELEASE_KEY_PASSWORD }}
           EOF
-      - name: Build
+      - name: Build debug APK for PRs
+        if: github.event_name == 'pull_request'
+        run: ./gradlew assembleFossDebug
+        working-directory: android
+      - name: Build release artifacts
+        if: github.event_name != 'pull_request'
         run: ./gradlew packageReleaseArtifacts
         working-directory: android
       - name: Get app version
@@ -59,26 +66,37 @@ jobs:
       - id: vars
         run: echo "short_sha=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
       - uses: actions/upload-artifact@v4
+        if: github.event_name != 'pull_request'
         with:
           name: apk-release
           path: release/*release.apk
 
       - uses: actions/upload-artifact@v4
+        if: github.event_name == 'pull_request'
+        with:
+          name: apk-debug
+          path: android/app/build/outputs/apk/foss/debug/app-foss-debug.apk
+
+      - uses: actions/upload-artifact@v4
+        if: github.event_name != 'pull_request'
         with:
           name: apk-debug
           path: release/*debug.apk
 
       - uses: actions/upload-artifact@v4
+        if: github.event_name != 'pull_request'
         with:
           name: root-module-release
           path: release/*release.zip
 
       - uses: actions/upload-artifact@v4
+        if: github.event_name != 'pull_request'
         with:
           name: root-module-debug
           path: release/*debug.zip
 
       - uses: actions/upload-artifact@v4
+        if: github.event_name != 'pull_request'
         with:
           name: release-bundle
           path: release/*.aab

android/app/build.gradle.kts

@@ -10,17 +10,29 @@ plugins {
     id("kotlin-parcelize")
 }
 
+val localPropsFile = rootProject.file("local.properties")
 val props = Properties().apply {
-    load(rootProject.file("local.properties").inputStream())
+    if (localPropsFile.exists()) {
+        load(localPropsFile.inputStream())
+    }
 }
 
+val releaseSigningAvailable = listOf(
+    "RELEASE_STORE_FILE",
+    "RELEASE_STORE_PASSWORD",
+    "RELEASE_KEY_ALIAS",
+    "RELEASE_KEY_PASSWORD"
+).all { props[it]?.toString()?.isNotBlank() == true }
+
 android {
     signingConfigs {
-        create("release") {
-            storeFile = file(props["RELEASE_STORE_FILE"] as String)
-            storePassword = props["RELEASE_STORE_PASSWORD"] as String
-            keyAlias = props["RELEASE_KEY_ALIAS"] as String
-            keyPassword = props["RELEASE_KEY_PASSWORD"] as String
+        if (releaseSigningAvailable) {
+            create("release") {
+                storeFile = file(props["RELEASE_STORE_FILE"] as String)
+                storePassword = props["RELEASE_STORE_PASSWORD"] as String
+                keyAlias = props["RELEASE_KEY_ALIAS"] as String
+                keyPassword = props["RELEASE_KEY_PASSWORD"] as String
+            }
         }
     }
     namespace = "me.kavishdevar.librepods"
@@ -45,14 +57,18 @@ android {
                 }
             }
             buildConfigField("Boolean", "PLAY_BUILD", "false")
-            signingConfig = signingConfigs.getByName("release")
+            if (releaseSigningAvailable) {
+                signingConfig = signingConfigs.getByName("release")
+            }
             defaultConfig {
                 minSdk = 33
             }
         }
         debug {
             buildConfigField("Boolean", "PLAY_BUILD", "false")
-            signingConfig = signingConfigs.getByName("release")
+            if (releaseSigningAvailable) {
+                signingConfig = signingConfigs.getByName("release")
+            }
             versionNameSuffix = "-debug"
             defaultConfig {
                 minSdk = 33