| #!/usr/bin/env bash | |
| # Copyright (c) 2022, the Dart project authors. Please see the AUTHORS file | |
| # for details. All rights reserved. Use of this source code is governed by a | |
| # BSD-style license that can be found in the LICENSE file. | |
| function follow_links() { | |
| file="$1" | |
| while [ -h "$file" ]; do | |
| # On Mac OS, readlink -f doesn't work. | |
| file="$(readlink "$file")" | |
| done | |
| echo "$file" | |
| } | |
| function get_realpath() { | |
| file="$1" | |
| if [ -f "$file" ]; then | |
| file="$(cd "$(dirname "$file")"; pwd -P)/$(basename "$file")" | |
| fi | |
| echo "$(follow_links "$file")" | |
| } | |
| # Unlike $0, $BASH_SOURCE points to the absolute path of this file. | |
| UTILS_SCRIPT="$(follow_links "${BASH_SOURCE[0]}")" | |
| UTILS_DIR="$(cd "${UTILS_SCRIPT%/*}" ; pwd -P)" | |
| SDK_DIR="$(cd "${UTILS_DIR}/../../.." ; pwd -P)" | |
| function get_host_arch() { | |
| case `uname -m` in | |
| x86_64) echo "x64" ;; | |
| aarch64 | arm64 | armv8*) echo "arm64" ;; | |
| *) | |
| echo "Unsupported host architecture" `uname -m` >&2 | |
| exit 1 | |
| ;; | |
| esac | |
| } |