#!/usr/bin/env bash # Copyright 2014 The Flutter Authors. All rights reserved. # Use of this source code is governed by a BSD-style license that can be # found in the LICENSE file. # ---------------------------------- NOTE ---------------------------------- # # # Please keep the logic in this file consistent with the logic in the # `update_dart_sdk.ps1` script in the same directory to ensure that Flutter # continues to work across all platforms! # # -------------------------------------------------------------------------- # set -e FLUTTER_ROOT="$(dirname "$(dirname "$(dirname "${BASH_SOURCE[0]}")")")" DART_SDK_PATH="$FLUTTER_ROOT/bin/cache/dart-sdk" DART_SDK_PATH_OLD="$DART_SDK_PATH.old" ENGINE_STAMP="$FLUTTER_ROOT/bin/cache/engine-dart-sdk.stamp" ENGINE_VERSION=`cat "$FLUTTER_ROOT/bin/internal/engine.version"` ENGINE_REALM=`cat "$FLUTTER_ROOT/bin/internal/engine.realm"` OS="$(uname -s)" if [ ! -f "$ENGINE_STAMP" ] || [ "$ENGINE_VERSION" != `cat "$ENGINE_STAMP"` ]; then command -v curl > /dev/null 2>&1 || { >&2 echo >&2 echo 'Missing "curl" tool. Unable to download Dart SDK.' case "$OS" in Darwin) >&2 echo 'Consider running "brew install curl".' ;; Linux) >&2 echo 'Consider running "sudo apt-get install curl".' ;; *) >&2 echo "Please install curl." ;; esac echo exit 1 } command -v unzip > /dev/null 2>&1 || { >&2 echo >&2 echo 'Missing "unzip" tool. Unable to extract Dart SDK.' case "$OS" in Darwin) echo 'Consider running "brew install unzip".' ;; Linux) echo 'Consider running "sudo apt-get install unzip".' ;; *) echo "Please install unzip." ;; esac echo exit 1 } # `uname -m` may be running in Rosetta mode, instead query sysctl if [ "$OS" = 'Darwin' ]; then # Allow non-zero exit so we can do control flow set +e # -n means only print value, not key QUERY="sysctl -n hw.optional.arm64" # Do not wrap $QUERY in double quotes, otherwise the args will be treated as # part of the command QUERY_RESULT=$($QUERY 2>/dev/null) if [ $? -eq 1 ]; then # If this command fails, we're certainly not on ARM ARCH='x64' elif [ "$QUERY_RESULT" = '0' ]; then # If this returns 0, we are also not on ARM ARCH='x64' elif [ "$QUERY_RESULT" = '1' ]; then ARCH='arm64' else >&2 echo "'$QUERY' returned unexpected output: '$QUERY_RESULT'" exit 1 fi set -e else # On x64 stdout is "uname -m: x86_64" # On arm64 stdout is "uname -m: aarch64, arm64_v8a" case "$(uname -m)" in x86_64) ARCH="x64" ;; *) ARCH="arm64" ;; esac fi case "$OS" in Darwin) DART_ZIP_NAME="dart-sdk-darwin-${ARCH}.zip" IS_USER_EXECUTABLE="-perm +100" ;; Linux) DART_ZIP_NAME="dart-sdk-linux-${ARCH}.zip" IS_USER_EXECUTABLE="-perm /u+x" ;; MINGW* | MSYS* ) DART_ZIP_NAME="dart-sdk-windows-x64.zip" IS_USER_EXECUTABLE="-perm /u+x" ;; *) echo "Unknown operating system. Cannot install Dart SDK." exit 1 ;; esac >&2 echo "Downloading $OS $ARCH Dart SDK from Flutter engine $ENGINE_VERSION..." # Use the default find if possible. if [ -e /usr/bin/find ]; then FIND=/usr/bin/find else FIND=find fi DART_SDK_BASE_URL="${FLUTTER_STORAGE_BASE_URL:-https://storage.googleapis.com}${ENGINE_REALM:+/$ENGINE_REALM}" DART_SDK_URL="$DART_SDK_BASE_URL/flutter_infra_release/flutter/$ENGINE_VERSION/$DART_ZIP_NAME" # if the sdk path exists, copy it to a temporary location if [ -d "$DART_SDK_PATH" ]; then rm -rf "$DART_SDK_PATH_OLD" mv "$DART_SDK_PATH" "$DART_SDK_PATH_OLD" fi # install the new sdk rm -rf -- "$DART_SDK_PATH" mkdir -m 755 -p -- "$DART_SDK_PATH" DART_SDK_ZIP="$FLUTTER_ROOT/bin/cache/$DART_ZIP_NAME" # Conditionally set verbose flag for LUCI verbose_curl="" if [[ -n "$LUCI_CI" ]]; then verbose_curl="--verbose" fi curl ${verbose_curl} --retry 3 --continue-at - --location --output "$DART_SDK_ZIP" "$DART_SDK_URL" 2>&1 || { curlExitCode=$? # Handle range errors specially: retry again with disabled ranges (`--continue-at -` argument) # When this could happen: # - missing support of ranges in proxy servers # - curl with broken handling of completed downloads # This is not a proper fix, but doesn't require any user input # - mirror of flutter storage without support of ranges # # 33 HTTP range error. The range "command" didn't work. # https://man7.org/linux/man-pages/man1/curl.1.html#EXIT_CODES if [ $curlExitCode != 33 ]; then return $curlExitCode fi curl ${verbose_curl} --retry 3 --location --output "$DART_SDK_ZIP" "$DART_SDK_URL" 2>&1 } || { >&2 echo >&2 echo "Failed to retrieve the Dart SDK from: $DART_SDK_URL" >&2 echo "If you're located in China, please see this page:" >&2 echo " https://flutter.dev/community/china" >&2 echo rm -f -- "$DART_SDK_ZIP" exit 1 } unzip -o -q "$DART_SDK_ZIP" -d "$FLUTTER_ROOT/bin/cache" || { >&2 echo >&2 echo "It appears that the downloaded file is corrupt; please try again." >&2 echo "If this problem persists, please report the problem at:" >&2 echo " https://github.com/flutter/flutter/issues/new?template=1_activation.yml" >&2 echo rm -f -- "$DART_SDK_ZIP" exit 1 } rm -f -- "$DART_SDK_ZIP" $FIND "$DART_SDK_PATH" -type d -exec chmod 755 {} \; $FIND "$DART_SDK_PATH" -type f $IS_USER_EXECUTABLE -exec chmod a+x,a+r {} \; echo "$ENGINE_VERSION" > "$ENGINE_STAMP" # delete any temporary sdk path if [ -d "$DART_SDK_PATH_OLD" ]; then rm -rf "$DART_SDK_PATH_OLD" fi fi