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pangolin/app/kernel/build-android.sh
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#!/usr/bin/env bash
# build-android.sh — gomobile bind sing-box libbox → dist/android/libbox.aar
#
# 用法: ./build-android.sh [--force]
# --force 忽略已有产物,强制重新构建
#
# 依赖:
# - Go : VERSION 中 GO_VERSION 指定的版本($GOROOT 或 PATH 中的 go
# - gomobile: 脚本自动安装至 $GOPATH/bin,依赖 GOMOBILE_VERSION
# - Android NDK: 需设置 ANDROID_NDK_HOME 或 ANDROID_HOME(含 ndk-bundle/ndk/<ver>
#
# 产物: dist/android/libbox.aar
# 包含三个 ABI: arm64-v8a / armeabi-v7a / x86_64
#
# Build tags 说明(对齐官方 SFA — sing-box for Android:
# with_quic — QUIC/HTTP3 协议支持(Hysteria2 必须)
# with_utls — uTLS 指纹模拟(TLS 防检测)
# with_clash_api — Clash 兼容 API(面板控制必须)
# with_gvisor — gVisor TUN 网络栈(高性能 TUN 回退)
#
# 裁剪开关(按需取消注释):
# with_grpc — gRPC 入站(约 +4 MB so 体积)
# with_ech — TLS ECH 扩展(约 +0.5 MB
# with_wireguard — WireGuard 出站(约 +2 MB
set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
# ── 加载版本锚点 ─────────────────────────────────────────────────────────────
# shellcheck source=VERSION
. "${SCRIPT_DIR}/VERSION"
# ── 参数解析 ─────────────────────────────────────────────────────────────────
FORCE=false
for arg in "$@"; do
case "${arg}" in
--force) FORCE=true ;;
*) printf 'Unknown argument: %s\n' "${arg}" >&2; exit 1 ;;
esac
done
# ── 路径配置 ─────────────────────────────────────────────────────────────────
DIST_DIR="${SCRIPT_DIR}/dist/android"
OUT_AAR="${DIST_DIR}/libbox.aar"
BUILD_SRC="${SCRIPT_DIR}/.build/singbox"
# ── Build tags ────────────────────────────────────────────────────────────────
BUILD_TAGS="with_quic,with_utls,with_clash_api,with_gvisor"
# 取消注释以增加功能(会增大 .so 体积):
# BUILD_TAGS="${BUILD_TAGS},with_grpc"
# BUILD_TAGS="${BUILD_TAGS},with_ech"
# BUILD_TAGS="${BUILD_TAGS},with_wireguard"
# ── 幂等检查 ─────────────────────────────────────────────────────────────────
if [[ "${FORCE}" == false && -f "${OUT_AAR}" ]]; then
printf '✓ %s 已存在,跳过构建(传 --force 强制重建)\n' "${OUT_AAR}"
exit 0
fi
# ── 前置检查 ─────────────────────────────────────────────────────────────────
printf '==> 检查前置依赖…\n'
if ! command -v go >/dev/null 2>&1; then
printf '✗ go 未找到,请安装 Go %s\n' "${GO_VERSION}" >&2
exit 1
fi
if ! command -v git >/dev/null 2>&1; then
printf '✗ git 未找到\n' >&2
exit 1
fi
ACTUAL_GO="$(go version | awk '{print $3}' | sed 's/go//')"
printf ' Go 版本: %s(期望 %s\n' "${ACTUAL_GO}" "${GO_VERSION}"
if [[ -n "${ANDROID_NDK_HOME:-}" ]]; then
printf ' NDK: %s\n' "${ANDROID_NDK_HOME}"
elif [[ -n "${ANDROID_HOME:-}" ]]; then
printf ' Android SDK: %sgomobile 将自动定位 NDK\n' "${ANDROID_HOME}"
else
printf '⚠ 未设置 ANDROID_NDK_HOME / ANDROID_HOMEgomobile init 可能失败\n' >&2
fi
# ── 安装 gomobile ─────────────────────────────────────────────────────────────
printf '==> 安装 gomobile@%s…\n' "${GOMOBILE_VERSION}"
go install "golang.org/x/mobile/cmd/gomobile@${GOMOBILE_VERSION}"
go install "golang.org/x/mobile/cmd/gobind@${GOMOBILE_VERSION}"
printf '==> gomobile init…\n'
gomobile init
# ── 准备 sing-box 源码 ────────────────────────────────────────────────────────
printf '==> 准备 sing-box %s 源码…\n' "${SINGBOX_VERSION}"
EXISTING_TAG=""
if [[ -d "${BUILD_SRC}/.git" ]]; then
EXISTING_TAG="$(git -C "${BUILD_SRC}" describe --tags --exact-match 2>/dev/null)" || EXISTING_TAG="unknown"
fi
if [[ "${EXISTING_TAG}" == "${SINGBOX_VERSION}" ]]; then
printf ' 源码已是 %s,跳过克隆\n' "${SINGBOX_VERSION}"
else
if [[ -d "${BUILD_SRC}" ]]; then
printf ' 已有源码版本 %s ≠ %s,清理后重新克隆…\n' "${EXISTING_TAG}" "${SINGBOX_VERSION}"
rm -rf "${BUILD_SRC}"
fi
mkdir -p "${BUILD_SRC%/*}"
git clone --depth 1 --branch "${SINGBOX_VERSION}" \
https://github.com/SagerNet/sing-box.git "${BUILD_SRC}"
fi
# ── 构建 AAR ──────────────────────────────────────────────────────────────────
printf '==> 构建 libbox.aar\n'
printf ' target : android/arm64,android/arm,android/amd64\n'
printf ' api : 21\n'
printf ' tags : %s\n' "${BUILD_TAGS}"
mkdir -p "${DIST_DIR}"
(
cd "${BUILD_SRC}"
go mod download
gomobile bind \
-target android/arm64,android/arm,android/amd64 \
-androidapi 21 \
-tags "${BUILD_TAGS}" \
-o "${OUT_AAR}" \
./experimental/libbox
)
printf '\n✓ 构建完成: %s\n' "${OUT_AAR}"
printf ' ABI 验证(.so 文件列表):\n'
unzip -l "${OUT_AAR}" | grep -E '\.so$' | awk '{print " " $NF}' || true