#!/usr/bin/env bash set -euo pipefail SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"MODULE_DIR="$(cd "${SCRIPT_DIR}/.." && pwd)"VENDOR_DIR="${MODULE_DIR}/../../../../native/libghostty-vt"PATCH_DIR="${SCRIPT_DIR}/libghostty-android-patches" GHOSTTY_REVISION="${GHOSTTY_REVISION:-9f62873bf195e4d8a762d768a1405a5f2f7b1697}"GHOSTTY_SOURCE_DIR="${GHOSTTY_SOURCE_DIR:-${HOME}/.cache/t3code/ghostty-${GHOSTTY_REVISION:0:8}}"GHOSTTY_ZIG_VERSION="${GHOSTTY_ZIG_VERSION:-0.15.2}"GHOSTTY_ZIG="${GHOSTTY_ZIG:-}"ANDROID_NDK_HOME="${ANDROID_NDK_HOME:-}" log() {  printf '[libghostty-vt-android] %s\n' "$*"} die() {  printf '[libghostty-vt-android] error: %s\n' "$*" >&2  exit 1} require_cmd() {  command -v "$1" >/dev/null 2>&1 || die "missing required command: $1"} ensure_zig() {  if [[ -n "${GHOSTTY_ZIG}" ]]; then    [[ -x "${GHOSTTY_ZIG}" ]] || die "GHOSTTY_ZIG is not executable: ${GHOSTTY_ZIG}"    return  fi  if command -v zig >/dev/null 2>&1 && [[ "$(zig version)" == "${GHOSTTY_ZIG_VERSION}" ]]; then    GHOSTTY_ZIG="$(command -v zig)"    return  fi   local host_os host_arch cache_dir  host_os="$(uname -s | tr '[:upper:]' '[:lower:]')"  host_arch="$(uname -m)"  case "${host_os}" in    darwin) host_os="macos" ;;    linux) ;;    *) die "unsupported host OS for Zig download: ${host_os}" ;;  esac  case "${host_arch}" in    arm64) host_arch="aarch64" ;;    aarch64 | x86_64) ;;    *) die "unsupported host architecture for Zig download: ${host_arch}" ;;  esac   cache_dir="${HOME}/.cache/t3code/zig-${GHOSTTY_ZIG_VERSION}"  GHOSTTY_ZIG="${cache_dir}/zig"  if [[ -x "${GHOSTTY_ZIG}" ]]; then    return  fi   require_cmd curl  require_cmd tar  mkdir -p "${cache_dir}"  log "downloading Zig ${GHOSTTY_ZIG_VERSION}"  curl -fsSL \    "https://ziglang.org/download/${GHOSTTY_ZIG_VERSION}/zig-${host_arch}-${host_os}-${GHOSTTY_ZIG_VERSION}.tar.xz" \    | tar -xJ --strip-components=1 -C "${cache_dir}"} ensure_ghostty_source() {  if [[ ! -d "${GHOSTTY_SOURCE_DIR}/.git" ]]; then    require_cmd git    log "cloning Ghostty ${GHOSTTY_REVISION}"    git clone --filter=blob:none --no-checkout https://github.com/ghostty-org/ghostty.git \      "${GHOSTTY_SOURCE_DIR}"    git -C "${GHOSTTY_SOURCE_DIR}" fetch --depth=1 origin "${GHOSTTY_REVISION}"    git -C "${GHOSTTY_SOURCE_DIR}" checkout --detach "${GHOSTTY_REVISION}"  fi   local actual_revision  actual_revision="$(git -C "${GHOSTTY_SOURCE_DIR}" rev-parse HEAD)"  [[ "${actual_revision}" == "${GHOSTTY_REVISION}" ]] || \    die "expected Ghostty ${GHOSTTY_REVISION}, found ${actual_revision}"} apply_ghostty_patches() {  [[ -d "${PATCH_DIR}" ]] || return   local patch_file patch_name  for patch_file in "${PATCH_DIR}"/*.patch; do    [[ -e "${patch_file}" ]] || continue    patch_name="$(basename "${patch_file}")"    if git -C "${GHOSTTY_SOURCE_DIR}" apply --reverse --check "${patch_file}" >/dev/null 2>&1; then      log "patch already applied: ${patch_name}"      continue    fi    log "applying patch: ${patch_name}"    git -C "${GHOSTTY_SOURCE_DIR}" apply --check "${patch_file}"    git -C "${GHOSTTY_SOURCE_DIR}" apply "${patch_file}"  done} if [[ -z "${ANDROID_NDK_HOME}" ]]; then  die "ANDROID_NDK_HOME must point to an installed Android NDK"fi[[ -d "${ANDROID_NDK_HOME}" ]] || die "Android NDK not found: ${ANDROID_NDK_HOME}" ensure_zigensure_ghostty_sourceapply_ghostty_patches strip_tool="${ANDROID_NDK_HOME}/toolchains/llvm/prebuilt"strip_tool="$(find "${strip_tool}" -path '*/bin/llvm-strip' -print -quit)"[[ -x "${strip_tool}" ]] || die "llvm-strip not found under ${ANDROID_NDK_HOME}" targets=(  "arm64-v8a:aarch64-linux-android"  "armeabi-v7a:arm-linux-androideabi"  "x86:x86-linux-android"  "x86_64:x86_64-linux-android") build_root="$(mktemp -d)"trap 'rm -rf "${build_root}"' EXITmkdir -p "${VENDOR_DIR}/include" for entry in "${targets[@]}"; do  abi="${entry%%:*}"  target="${entry#*:}"  prefix="${build_root}/${abi}"  log "building ${abi} (${target})"  (    cd "${GHOSTTY_SOURCE_DIR}"    ANDROID_NDK_HOME="${ANDROID_NDK_HOME}" "${GHOSTTY_ZIG}" build \      -Demit-lib-vt \      -Dtarget="${target}" \      -Doptimize=ReleaseFast \      -Dstrip=true \      -Dsimd=false \      -p "${prefix}"  )   mkdir -p "${MODULE_DIR}/android/src/main/jniLibs/${abi}"  cp "${prefix}/lib/libghostty-vt.so.0.1.0" \    "${MODULE_DIR}/android/src/main/jniLibs/${abi}/libghostty-vt.so"  "${strip_tool}" --strip-unneeded \    "${MODULE_DIR}/android/src/main/jniLibs/${abi}/libghostty-vt.so"done rm -rf "${VENDOR_DIR}/include/ghostty"cp -R "${build_root}/arm64-v8a/include/ghostty" "${VENDOR_DIR}/include/ghostty"cp "${GHOSTTY_SOURCE_DIR}/LICENSE" "${VENDOR_DIR}/LICENSE"printf '%s\n' "${GHOSTTY_REVISION}" > "${VENDOR_DIR}/VERSION"log "done"