kepr-build-apk.sh

1#!/bin/sh2# Build and publish the signed release APK for Kepr Builds.3#4# The release keystore is read from local.properties (koh-ignored). The script5# checks that configuration before starting Gradle, then validates the produced6# APK's package, version, APK Signature Scheme, and pinned release certificate7# before copying anything to the Kepr staging directory.8set -eu910JAVA_HOME="/opt/homebrew/opt/openjdk@17/libexec/openjdk.jdk/Contents/Home"11if [ ! -d "$JAVA_HOME" ]; then12    echo "refusing to publish: required Java 17 runtime not found at $JAVA_HOME" >&213    exit 114fi15export JAVA_HOME1617ROOT_DIR=$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)18cd "$ROOT_DIR"1920# Keep the tool-selection and public metadata gates shared with the hermetic21# negative-path test; this script owns signing/build orchestration only.22# shellcheck source=scripts/kepr-build-helpers.sh23. "$ROOT_DIR/scripts/kepr-build-helpers.sh"2425PROPERTIES_FILE="$ROOT_DIR/local.properties"26if [ ! -r "$PROPERTIES_FILE" ]; then27    echo "refusing to publish: local.properties is missing or unreadable" >&228    exit 129fi3031property() {32    # Values are inspected only for presence/path checks; never print this file33    # because it contains the release passwords.34    sed -n "s/^$1=//p" "$PROPERTIES_FILE" | sed -n '1p'35}3637STORE_FILE_PROPERTY=$(property peachStoreFile)38STORE_PASSWORD=$(property peachStorePassword)39KEY_ALIAS=$(property peachKeyAlias)40KEY_PASSWORD=$(property peachKeyPassword)4142if [ -z "$STORE_FILE_PROPERTY" ] || [ -z "$STORE_PASSWORD" ] ||43    [ -z "$KEY_ALIAS" ] || [ -z "$KEY_PASSWORD" ]; then44    echo "refusing to publish: incomplete release signing configuration" >&245    exit 146fi4748case "$STORE_FILE_PROPERTY" in49    /*) STORE_FILE="$STORE_FILE_PROPERTY" ;;50    *) STORE_FILE="$ROOT_DIR/$STORE_FILE_PROPERTY" ;;51esac52if [ ! -f "$STORE_FILE" ] || [ ! -r "$STORE_FILE" ]; then53    echo "refusing to publish: configured release keystore is missing or unreadable" >&254    exit 155fi5657# Resolve the SDK from the environment first, then the same local.properties58# Gradle uses. Pick the newest *versioned* build-tools directory containing both59# tools; build-tools/latest is intentionally never trusted or consulted.60SDK_ROOT="${ANDROID_HOME:-${ANDROID_SDK_ROOT:-}}"61if [ -z "$SDK_ROOT" ]; then62    SDK_ROOT=$(property sdk.dir)63fi64if [ -z "$SDK_ROOT" ] || [ ! -d "$SDK_ROOT/build-tools" ]; then65    echo "refusing to publish: Android SDK build-tools directory not found" >&266    exit 167fi6869BUILD_TOOLS_DIR=$(find_stable_build_tools_dir "$SDK_ROOT" || true)70if [ -z "$BUILD_TOOLS_DIR" ]; then71    echo "refusing to publish: no versioned build-tools directory has apksigner and aapt2" >&272    exit 173fi74APKSIGNER="$BUILD_TOOLS_DIR/apksigner"75AAPT2="$BUILD_TOOLS_DIR/aapt2"7677ROOT_VERSION=$(read_root_semver "$ROOT_DIR/VERSION" || true)78if [ -z "$ROOT_VERSION" ]; then79    echo "refusing to publish: VERSION is missing or not strict semantic version" >&280    exit 181fi8283"$ROOT_DIR/gradlew" --no-configuration-cache :app:assembleRelease8485case "${KEPR_TARGET:-}" in86    android-arm64)87        APK_NAME="app-arm64-v8a-release.apk"88        EXPECTED_ABI="arm64-v8a"89        ;;90    android-x86)91        APK_NAME="app-x86_64-release.apk"92        EXPECTED_ABI="x86_64"93        ;;94    *)95        echo "refusing to publish: unsupported KEPR_TARGET '${KEPR_TARGET:-unset}'" >&296        exit 197        ;;98esac99100APK="$ROOT_DIR/app/build/outputs/apk/release/$APK_NAME"101METADATA="$ROOT_DIR/app/build/outputs/apk/release/output-metadata.json"102if [ ! -f "$APK" ] || [ ! -r "$APK" ]; then103    echo "refusing to publish: release APK was not produced" >&2104    exit 1105fi106if [ ! -f "$METADATA" ] || [ ! -r "$METADATA" ]; then107    echo "refusing to publish: Gradle output metadata was not produced" >&2108    exit 1109fi110111BADGING_FILE=$(mktemp "${TMPDIR:-/tmp}/peach-apk-badging.XXXXXX")112cleanup_badging() {113    [ -e "$BADGING_FILE" ] && trash "$BADGING_FILE"114}115trap cleanup_badging EXIT HUP INT TERM116"$AAPT2" dump badging "$APK" > "$BADGING_FILE"117if ! validate_release_metadata \118    "$METADATA" \119    "$BADGING_FILE" \120    "$ROOT_VERSION" \121    "com.peachpasswords" \122    "$APK_NAME" \123    "$EXPECTED_ABI"; then124    exit 1125fi126127# apksigner's plain verify accepts v1-only APKs, so require an explicit v2/v3/v4128# success line before publication. Capture output in memory; it contains only129# public certificate metadata and is never written with signing secrets.130SIGNING_OUTPUT=$("$APKSIGNER" verify --verbose --print-certs "$APK" 2>/dev/null) || {131    echo "refusing to publish: apksigner verification failed" >&2132    exit 1133}134if ! printf '%s\n' "$SIGNING_OUTPUT" | grep -Eq 'Verified using v[234] scheme.*: true'; then135    echo "refusing to publish: APK is not signed with APK Signature Scheme v2 or newer" >&2136    exit 1137fi138139PINNED_RELEASE_CERT_SHA256="e10b975178f0bee7fb5a4802519da70ec2988b6ef7d8c9401fbbcff5a1137668"140CERT_DIGEST_COUNT=$(printf '%s\n' "$SIGNING_OUTPUT" | grep -c 'certificate SHA-256 digest:' || true)141if [ "$CERT_DIGEST_COUNT" -ne 1 ]; then142    echo "refusing to publish: release APK must have exactly one signer certificate" >&2143    exit 1144fi145CERT_DIGEST=$(printf '%s\n' "$SIGNING_OUTPUT" |146    sed -n 's/.*certificate SHA-256 digest:[[:space:]]*//p' |147    sed -n '1p' | tr -d '[:space:]' | tr '[:upper:]' '[:lower:]')148if [ "$CERT_DIGEST" != "$PINNED_RELEASE_CERT_SHA256" ]; then149    echo "refusing to publish: APK signer certificate does not match the pinned Peach release digest" >&2150    exit 1151fi152153# Only a fully verified artifact reaches the Kepr staging directory. The154# basename includes SemVer + ABI so Kepr's Content-Disposition carries both155# to the browser, matching the {version}/{platform} tokens in kepr.build.156mkdir -p "$ROOT_DIR/build/kepr"157STAGED_NAME="peach-android-${ROOT_VERSION}-${KEPR_TARGET}.apk"158cp "$APK" "$ROOT_DIR/build/kepr/$STAGED_NAME"159echo "release APK verified and staged: build/kepr/$STAGED_NAME"