fix: replace broken expo config plugin with post-prebuild Python patch
The expo config plugin approach failed because eas-cli (global install) loads app.json plugins in its own module resolution context and cannot find @expo/config-plugins from the project's local node_modules. Replace with a Python3 inline script in build-apk.sh that patches android/app/build.gradle after expo prebuild: - Inserts a release signingConfig block (reads from gradle.properties) - Switches release buildType from signingConfigs.debug to .release Removes plugins/withAndroidReleaseSigning.js and its app.json entry. No npm dependency required — Python3 is available on any Linux host. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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@@ -48,7 +48,6 @@
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"sounds": []
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}
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],
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"./plugins/withAndroidReleaseSigning"
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],
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"experiments": {
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"typedRoutes": true,
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@@ -3,17 +3,19 @@
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#
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# Prerequisites (first time only):
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# 1. Export EAS keystore:
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# cd artifacts/postiz-mobile
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# eas credentials --platform android
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# → "Download existing keystore" → save to ~/.config/postiz-mobile/postiz-mobile.jks
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# 2. Fill in signing credentials:
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# cp ~/.config/postiz-mobile/signing.env.example ~/.config/postiz-mobile/signing.env
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# editor ~/.config/postiz-mobile/signing.env
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# $EDITOR ~/.config/postiz-mobile/signing.env
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# 3. Install Android SDK (if not already):
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# ./install-android-sdk.sh
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# # then add ANDROID_HOME to your shell profile and reload it
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#
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# Usage:
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# ./build-apk.sh # APK goes to dist/
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# ./build-apk.sh --aab # AAB (Play Store) instead of APK
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# ./build-apk.sh # → dist/postiz-mobile-YYYYMMDD-HHMM.apk
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# ./build-apk.sh --aab # → dist/postiz-mobile-YYYYMMDD-HHMM.aab (Play Store)
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set -euo pipefail
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@@ -24,9 +26,9 @@ BUILD_TYPE="${1:-}"
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# ─── Colours ───────────────────────────────────────────────────────────────
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RED='\033[0;31m'; GREEN='\033[0;32m'; YELLOW='\033[1;33m'; NC='\033[0m'
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info() { echo -e "${GREEN}[build]${NC} $*"; }
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warn() { echo -e "${YELLOW}[warn]${NC} $*"; }
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abort() { echo -e "${RED}[error]${NC} $*" >&2; exit 1; }
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info() { echo -e "${GREEN}[build]${NC} $*"; }
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warn() { echo -e "${YELLOW}[warn]${NC} $*"; }
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abort() { echo -e "${RED}[error]${NC} $*" >&2; exit 1; }
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# ─── 1. Signing credentials ────────────────────────────────────────────────
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if [ ! -f "$SIGNING_ENV" ]; then
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@@ -43,11 +45,11 @@ source "$SIGNING_ENV"
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KEYSTORE_PATH_EXPANDED="${KEYSTORE_PATH/#\$HOME/$HOME}"
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KEYSTORE_PATH_EXPANDED="${KEYSTORE_PATH_EXPANDED/#~/$HOME}"
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[ ! -f "$KEYSTORE_PATH_EXPANDED" ] && abort "Keystore not found: $KEYSTORE_PATH_EXPANDED\n\nExport it from EAS:\n eas credentials --platform android\n → Download existing keystore → save to $KEYSTORE_PATH_EXPANDED"
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[ ! -f "$KEYSTORE_PATH_EXPANDED" ] && \
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abort "Keystore not found: $KEYSTORE_PATH_EXPANDED\n\nExport it from EAS:\n eas credentials --platform android\n → Download existing keystore → save to $KEYSTORE_PATH_EXPANDED"
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# ─── 2. Android SDK ────────────────────────────────────────────────────────
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if [ -z "${ANDROID_HOME:-}" ]; then
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# Try common locations
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for candidate in "$HOME/android-sdk" "$HOME/Android/Sdk" "/opt/android-sdk"; do
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if [ -d "$candidate/platform-tools" ]; then
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export ANDROID_HOME="$candidate"
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@@ -57,7 +59,7 @@ if [ -z "${ANDROID_HOME:-}" ]; then
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fi
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if [ -z "${ANDROID_HOME:-}" ]; then
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abort "Android SDK not found.\n\nRun: ./install-android-sdk.sh\nOr set ANDROID_HOME manually in your shell."
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abort "Android SDK not found.\n\nRun: ./install-android-sdk.sh\nThen: export ANDROID_HOME=\"\$HOME/android-sdk\" && source ~/.bashrc"
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fi
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export PATH="$PATH:$ANDROID_HOME/platform-tools:$ANDROID_HOME/cmdline-tools/latest/bin"
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@@ -68,16 +70,67 @@ info "Running expo prebuild (Android)…"
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cd "$SCRIPT_DIR"
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pnpm exec expo prebuild --platform android --clean --no-install
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# ─── 4. Inject signing into gradle.properties ──────────────────────────────
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# ─── 4. Patch build.gradle — inject release signingConfig ──────────────────
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info "Patching android/app/build.gradle for release signing…"
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python3 - "$SCRIPT_DIR/android/app/build.gradle" << 'PYEOF'
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import sys, re
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path = sys.argv[1]
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with open(path, 'r') as f:
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content = f.read()
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if 'MYAPP_UPLOAD_STORE_FILE' in content:
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print('[patch] build.gradle already patched, skipping.')
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sys.exit(0)
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release_signing = """\n release {
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if (project.hasProperty('MYAPP_UPLOAD_STORE_FILE')) {
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storeFile file(MYAPP_UPLOAD_STORE_FILE)
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storePassword MYAPP_UPLOAD_STORE_PASSWORD
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keyAlias MYAPP_UPLOAD_KEY_ALIAS
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keyPassword MYAPP_UPLOAD_KEY_PASSWORD
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}
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}"""
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# Insert release block right after the closing brace of the debug signingConfig
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content = re.sub(
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r'(signingConfigs\s*\{[\s\S]*?debug\s*\{[\s\S]*?\})',
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r'\1' + release_signing,
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content,
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count=1
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)
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# Switch release buildType from debug signing to release signing
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# Only replace the first occurrence after "release {" (not the debug one)
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def replace_release_signing(m):
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return m.group(0).replace('signingConfig signingConfigs.debug',
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'signingConfig signingConfigs.release', 1)
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content = re.sub(
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r'release\s*\{[^}]*signingConfig\s+signingConfigs\.debug',
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replace_release_signing,
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content,
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count=1,
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flags=re.DOTALL
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)
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with open(path, 'w') as f:
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f.write(content)
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print('[patch] build.gradle patched for release signing.')
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PYEOF
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# ─── 5. Inject signing props into gradle.properties ────────────────────────
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info "Injecting signing credentials into gradle.properties…"
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GRADLE_PROPS="$SCRIPT_DIR/android/gradle.properties"
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# Remove any previous signing block written by this script
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sed -i '/^# --- postiz-mobile release signing/,/^# --- end signing/d' "$GRADLE_PROPS" 2>/dev/null || true
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# Remove any previous signing block left by this script
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sed -i '/^# --- postiz release signing/,/^# --- end signing/d' "$GRADLE_PROPS" 2>/dev/null || true
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cat >> "$GRADLE_PROPS" << EOF
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# --- postiz-mobile release signing (injected by build-apk.sh)
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# --- postiz release signing (injected by build-apk.sh — wiped after build)
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MYAPP_UPLOAD_STORE_FILE=$KEYSTORE_PATH_EXPANDED
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MYAPP_UPLOAD_STORE_PASSWORD=$KEYSTORE_STORE_PASSWORD
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MYAPP_UPLOAD_KEY_ALIAS=$KEYSTORE_ALIAS
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@@ -85,7 +138,7 @@ MYAPP_UPLOAD_KEY_PASSWORD=$KEYSTORE_KEY_PASSWORD
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# --- end signing
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EOF
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# ─── 5. Gradle build ───────────────────────────────────────────────────────
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# ─── 6. Gradle build ───────────────────────────────────────────────────────
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cd "$SCRIPT_DIR/android"
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if [ "$BUILD_TYPE" = "--aab" ]; then
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@@ -100,7 +153,11 @@ else
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EXT="apk"
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fi
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# ─── 6. Copy to dist/ ──────────────────────────────────────────────────────
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# ─── 7. Wipe credentials from gradle.properties ───────────────────────────
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sed -i '/^# --- postiz release signing/,/^# --- end signing/d' "$GRADLE_PROPS"
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info "Signing credentials wiped from gradle.properties."
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# ─── 8. Copy to dist/ ─────────────────────────────────────────────────────
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mkdir -p "$DIST_DIR"
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TIMESTAMP="$(date +%Y%m%d-%H%M)"
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OUTPUT="$DIST_DIR/postiz-mobile-$TIMESTAMP.$EXT"
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@@ -110,6 +167,3 @@ echo ""
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info "Build complete!"
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echo -e " ${GREEN}→ $OUTPUT${NC}"
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echo ""
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# Wipe signing credentials from gradle.properties for safety
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sed -i '/^# --- postiz-mobile release signing/,/^# --- end signing/d' "$GRADLE_PROPS"
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@@ -1,38 +0,0 @@
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const { withAppBuildGradle } = require("@expo/config-plugins");
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// Injects a proper release signingConfig into the generated build.gradle.
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// Reads credentials from gradle.properties (populated by build-apk.sh at build time).
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// This plugin runs during `expo prebuild` so android/ doesn't need to be committed.
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module.exports = function withAndroidReleaseSigning(config) {
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return withAppBuildGradle(config, (mod) => {
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let contents = mod.modResults.contents;
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if (contents.includes("MYAPP_UPLOAD_STORE_FILE")) {
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return mod; // already patched
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}
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const releaseBlock = ` release {
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if (project.hasProperty('MYAPP_UPLOAD_STORE_FILE')) {
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storeFile file(MYAPP_UPLOAD_STORE_FILE)
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storePassword MYAPP_UPLOAD_STORE_PASSWORD
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keyAlias MYAPP_UPLOAD_KEY_ALIAS
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keyPassword MYAPP_UPLOAD_KEY_PASSWORD
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}
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}`;
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// Insert release signingConfig after the closing brace of the debug block
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contents = contents.replace(
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/(signingConfigs\s*\{[\s\S]*?debug\s*\{[\s\S]*?\})/,
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`$1\n${releaseBlock}`
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);
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// Switch the release buildType from debug signing to release signing
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contents = contents.replace(
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/(buildTypes[\s\S]*?release\s*\{[\s\S]*?)signingConfig\s+signingConfigs\.debug/,
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"$1signingConfig signingConfigs.release"
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);
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mod.modResults.contents = contents;
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return mod;
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});
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};
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