#!/bin/bash # Copyright 2015 The Chromium 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 # `flutter.bat` script in the same directory to ensure that Flutter continues # to work across all platforms! # # -------------------------------------------------------------------------- # set -e function follow_links() { cd -P "${1%/*}" local file="$PWD/${1##*/}" while [ -h "$file" ]; do # On Mac OS, readlink -f doesn't work. cd -P "${file%/*}" file="$(readlink "$file")" cd -P "${file%/*}" file="$PWD/${file##*/}" done echo "$PWD/${file##*/}" } # Convert a filesystem path to a format usable by Dart's URI parser. function path_uri() { # Reduce multiple leading slashes to a single slash. echo "$1" | sed -E -e "s,^/+,/," } function upgrade_flutter () { if hash flock 2>/dev/null; then flock 3 # ensures that we don't simultaneously update Dart in multiple parallel instances # some platforms (e.g. Mac) don't have flock or any reliable alternative fi local revision=`(cd "$FLUTTER_ROOT"; git rev-parse HEAD)` if [ ! -f "$SNAPSHOT_PATH" ] || [ ! -s "$STAMP_PATH" ] || [ `cat "$STAMP_PATH"` != "$revision" ] || [ "$FLUTTER_TOOLS_DIR/pubspec.yaml" -nt "$FLUTTER_TOOLS_DIR/pubspec.lock" ]; then mkdir -p "$FLUTTER_ROOT/bin/cache" touch "$FLUTTER_ROOT/bin/cache/.dartignore" "$FLUTTER_ROOT/bin/internal/update_dart_sdk.sh" echo Building flutter tool... if [ "$TRAVIS" == "true" ] || [ "$BOT" == "true" ] || [ "$CONTINUOUS_INTEGRATION" == "true" ] || [ "$CHROME_HEADLESS" == "1" ] || [ "$APPVEYOR" == "true" ] || [ "$CI" == "true" ]; then PUB_ENVIRONMENT="$PUB_ENVIRONMENT:flutter_bot" fi export PUB_ENVIRONMENT="$PUB_ENVIRONMENT:flutter_install" if [ -d "$FLUTTER_ROOT/.pub-cache" ]; then export PUB_CACHE="${PUB_CACHE:-"$FLUTTER_ROOT/.pub-cache"}" fi while : ; do cd "$FLUTTER_TOOLS_DIR" "$PUB" upgrade --verbosity=error --no-packages-dir && break echo Error: Unable to 'pub upgrade' flutter tool. Retrying in five seconds... sleep 5 done "$DART" --snapshot="$SNAPSHOT_PATH" --packages="$FLUTTER_TOOLS_DIR/.packages" "$SCRIPT_PATH" echo "$revision" > "$STAMP_PATH" fi } PROG_NAME="$(path_uri "$(follow_links "$BASH_SOURCE")")" BIN_DIR="$(cd "${PROG_NAME%/*}" ; pwd -P)" export FLUTTER_ROOT="$(cd "${BIN_DIR}/.." ; pwd -P)" FLUTTER_TOOLS_DIR="$FLUTTER_ROOT/packages/flutter_tools" SNAPSHOT_PATH="$FLUTTER_ROOT/bin/cache/flutter_tools.snapshot" STAMP_PATH="$FLUTTER_ROOT/bin/cache/flutter_tools.stamp" SCRIPT_PATH="$FLUTTER_TOOLS_DIR/bin/flutter_tools.dart" DART_SDK_PATH="$FLUTTER_ROOT/bin/cache/dart-sdk" DART="$DART_SDK_PATH/bin/dart" PUB="$DART_SDK_PATH/bin/pub" # Test if running as superuser – but don't warn if running within Docker if [[ "$EUID" == "0" ]] && ! [[ -f /.dockerenv ]]; then echo " Woah! You appear to be trying to run flutter as root." echo " We strongly recommend running the flutter tool without superuser privileges." echo " /" echo "📎" fi # Test if Git is available on the Host if ! hash git 2>/dev/null; then echo "Error: Unable to find git in your PATH." exit 1 fi # Test if the flutter directory is a git clone (otherwise git rev-parse HEAD would fail) if [ ! -d "$FLUTTER_ROOT/.git" ]; then echo "Error: The Flutter directory is not a clone of the GitHub project." exit 1 fi FLUTTER_TOOL_ARGS="--assert-initializer $FLUTTER_TOOL_ARGS" # To debug the tool, you can uncomment the following lines to enable checked mode and set an observatory port: # FLUTTER_TOOL_ARGS="--checked $FLUTTER_TOOL_ARGS" # FLUTTER_TOOL_ARGS="$FLUTTER_TOOL_ARGS --observe=65432" (upgrade_flutter) 3< "$PROG_NAME" set +e "$DART" $FLUTTER_TOOL_ARGS "$SNAPSHOT_PATH" "$@" # The VM exits with code 253 if the snapshot version is out-of-date. # If it is, we need to snapshot it again. EXIT_CODE=$? if [ $EXIT_CODE != 253 ]; then exit $EXIT_CODE fi set -e "$DART" --snapshot="$SNAPSHOT_PATH" --packages="$FLUTTER_TOOLS_DIR/.packages" "$SCRIPT_PATH" "$DART" $FLUTTER_TOOL_ARGS "$SNAPSHOT_PATH" "$@"