mirror of
git://f0xx.org/android_cast
synced 2026-07-29 09:58:19 +03:00
92 lines
2.6 KiB
Bash
Executable File
92 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Android NDK discovery for AndroidCast build scripts.
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# Source this file: source "$(dirname "$0")/android-ndk.sh"
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#
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# Optional env:
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# ANDROIDCAST_NDK_VERSION — pin a version under $HOME/Android/Sdk/ndk (e.g. 29.0.14206865)
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# ANDROID_NDK_HOME / ANDROID_NDK_ROOT — used when valid
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#
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set -euo pipefail
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_androidcast_sdk_base() {
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printf '%s\n' "${ANDROIDCAST_SDK_BASE:-${ANDROID_HOME:-${ANDROID_SDK_ROOT:-$HOME/Android/Sdk}}}"
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}
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# Print absolute NDK root (directory containing ndk-build). Errors on stderr.
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androidcast_find_ndk_root() {
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local project_root="${1:-}"
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local ndk="" ndk_root ndk_ver parent pinned
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if [[ -n "$project_root" && -f "$project_root/local.properties" ]]; then
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ndk="$(sed -n 's/^[[:space:]]*ndk\.dir=//p' "$project_root/local.properties" | tr -d '\r' | head -1)"
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ndk="${ndk%/}"
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while [[ -n "$ndk" ]]; do
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if [[ -x "$ndk/ndk-build" ]]; then
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realpath "$ndk"
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return 0
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fi
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parent="$(dirname "$ndk")"
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[[ "$parent" == "$ndk" ]] && break
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ndk="$parent"
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done
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fi
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for ndk in "${ANDROID_NDK_HOME:-}" "${ANDROID_NDK_ROOT:-}"; do
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ndk="${ndk%/}"
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if [[ -n "$ndk" && -x "$ndk/ndk-build" ]]; then
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realpath "$ndk"
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return 0
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fi
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done
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ndk_root="$(_androidcast_sdk_base)/ndk"
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if [[ ! -d "$ndk_root" ]]; then
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echo "ERROR: No Android NDK found. Install via SDK Manager ($ndk_root) or set ANDROID_NDK_HOME." >&2
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return 1
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fi
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pinned="${ANDROIDCAST_NDK_VERSION:-}"
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if [[ -n "$pinned" ]]; then
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if [[ -d "$ndk_root/$pinned" ]]; then
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ndk_ver="$pinned"
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else
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echo "ERROR: ANDROIDCAST_NDK_VERSION=$pinned not found under $ndk_root" >&2
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return 1
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fi
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else
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ndk_ver="$(ls -1 "$ndk_root" 2>/dev/null | sort -V | tail -n 1 || true)"
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if [[ -z "$ndk_ver" ]]; then
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echo "ERROR: No NDK versions under $ndk_root" >&2
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return 1
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fi
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fi
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ndk="$ndk_root/$ndk_ver"
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if [[ ! -x "$ndk/ndk-build" ]]; then
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echo "ERROR: ndk-build missing under $ndk" >&2
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return 1
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fi
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realpath "$ndk"
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}
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# Print llvm prebuilt bin directory for the current host.
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androidcast_ndk_host_bin() {
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local ndk_root="${1:?NDK root required}"
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local os arch host_tag
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case "$(uname -s)" in
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Linux) os=linux ;;
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Darwin) os=darwin ;;
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*) os="$(uname -s | tr '[:upper:]' '[:lower:]')" ;;
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esac
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arch="$(uname -m)"
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case "$arch" in
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x86_64 | amd64) arch=x86_64 ;;
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aarch64 | arm64) arch=aarch64 ;;
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esac
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host_tag="${os}-${arch}"
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if [[ ! -d "$ndk_root/toolchains/llvm/prebuilt/${host_tag}/bin" ]]; then
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host_tag="linux-x86_64"
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fi
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realpath "$ndk_root/toolchains/llvm/prebuilt/${host_tag}/bin"
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}
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