Fix CI signing of nightly builds

.github/workflows/ci.yml

@@ -155,7 +155,7 @@ jobs:
 
       - name: Setup secrets for artifact signing (different from the production releases)
         run: |
-          dir=secrets/nightly/android
+          dir=secrets/android
           mkdir -p $dir
           echo $NIGHTLY_KEYSTORE_JKS_HEX > $dir/keystore.jks.hex
           # Use `keytool` to generate the `keystore.jks` keystore.

android/app/build.gradle

@@ -161,13 +161,19 @@ def loadKeystorePropertiesFile(String keystorePropertiesPath) {
     }
     def properties = new Properties()
 
-    def proFile = rootProject.file(keystorePropertiesPath)
+    def propFile = rootProject.file(keystorePropertiesPath)
 
-    if (!proFile.exists()) {
-        return null
+    if (!propFile.exists()) {
+        throw new GradleException("The keystore properties file does not exist: ${keystorePropertiesPath}");
     }
 
-    proFile.withInputStream { properties.load(it) }
+    propFile.withInputStream { properties.load(it) }
+
+    def storeFile = file(properties['storeFile']);
+
+    if (!storeFile.exists()) {
+        throw new GradleException("The store file does not exist: ${storeFile.getPath()}");
+    }
 
     def config = new SigningConfig(
         keyAlias: properties['keyAlias'],

util/release.dart

@@ -379,14 +379,19 @@ class Options {
       }
     }
 
-    final androidKeyProperties = results['android-key-properties'];
+    String? androidKeyProperties = results['android-key-properties'];
 
     if (androidKeyProperties != null) {
-      if (!await File(androidKeyProperties).exists()) {
+      final file = File(androidKeyProperties);
+      if (!await file.exists()) {
         print(
             "Android keystore properties file '$androidKeyProperties' does not exist");
         exit(1);
       }
+
+      // Convert to absolute path because if it's relative the build.gradle
+      // script expects it to be relative to the ./android/ directory.
+      androidKeyProperties = file.absolute.path;
     }
 
     final sentryDSNFile = results['sentry'];