| #!/bin/bash |
| set -e |
| |
| # felt: a command-line utility for building and testing Flutter web engine. |
| # It stands for Flutter Engine Local Tester. |
| # TODO: Add git fetch --tags step. Tags are critical for the correct Dart |
| # version. |
| |
| FELT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )" |
| |
| if [ -z "`which gclient`" ] |
| then |
| echo "ERROR: gclient is not in your PATH" |
| echo "Fix: add the path to your installation of depot_tools to your PATH" |
| exit 1 |
| fi |
| GCLIENT_PATH=`which gclient` |
| |
| if [ -z "`which ninja`" ] |
| then |
| echo "ERROR: ninja is not in your PATH" |
| echo "Fix: add the path to your installation of depot_tools to your PATH" |
| exit 1 |
| fi |
| NINJA_PATH=`which ninja` |
| |
| ENGINE_SRC_DIR="$(dirname $(dirname $(dirname $(dirname ${FELT_DIR}))))" |
| FLUTTER_DIR="${ENGINE_SRC_DIR}/flutter" |
| WEB_UI_DIR="${FLUTTER_DIR}/lib/web_ui" |
| DEV_DIR="${WEB_UI_DIR}/dev" |
| OUT_DIR="${ENGINE_SRC_DIR}/out" |
| HOST_DEBUG_UNOPT_DIR="${ENGINE_SRC_DIR}/out/host_debug_unopt" |
| DART_SDK_DIR="${ENGINE_SRC_DIR}/out/host_debug_unopt/dart-sdk" |
| GN="${FLUTTER_DIR}/tools/gn" |
| DART_TOOL_DIR="${WEB_UI_DIR}/.dart_tool" |
| PUB_PATH="$DART_SDK_DIR/bin/pub" |
| SNAPSHOT_PATH="${DART_TOOL_DIR}/felt.snapshot" |
| STAMP_PATH="${DART_TOOL_DIR}/felt.snapshot.stamp" |
| SCRIPT_PATH="${DEV_DIR}/felt.dart" |
| REVISION="$(cd "$FLUTTER_DIR"; git rev-parse HEAD)" |
| |
| if [ ! -f "${PUB_PATH}" ] |
| then |
| echo "Compiling the Dart SDK." |
| gclient sync |
| $GN --unoptimized --full-dart-sdk |
| ninja -C $HOST_DEBUG_UNOPT_DIR -j 100 |
| fi |
| |
| install_deps() { |
| echo "Running \`pub get\` in 'engine/src/flutter/lib/web_ui'" |
| (cd "$WEB_UI_DIR"; $PUB_PATH get) |
| |
| echo "Running \`pub get\` in 'engine/src/flutter/web_sdk/web_engine_tester'" |
| (cd "$FLUTTER_DIR/web_sdk/web_engine_tester"; $PUB_PATH get) |
| } |
| |
| KERNEL_NAME=`uname` |
| if [[ $KERNEL_NAME == *"Darwin"* ]] |
| then |
| echo "Running on MacOS. Will check the file and user limits." |
| # Disable exit if the commands fails. We want to give more actionable |
| # error message. |
| set +e |
| ULIMIT_FILES=`ulimit -n` |
| # Increase the file limit if it is low. Note that these limits are changed |
| # only for this script (for this shell). After felt execution is completed |
| # no change is required to reset the original shell. |
| if [[ $ULIMIT_FILES -lt 50000 ]] |
| then |
| echo "File limits too low increasing the file limits" |
| # Get the max file limit. |
| MAX_ULIMIT_FILES=`launchctl limit maxfiles | sed -e 's/^[[:space:]]*//' | sed 's/ \{1,\}/ /g' | cut -d' ' -f2` |
| if [[ $MAX_ULIMIT_FILES -lt 50000 ]] |
| then |
| # Increase the maximum file limit. |
| sudo launchctl limit maxfiles 50000 200000 |
| fi |
| ERROR=$(ulimit -n 50000 2>&1 >/dev/null) |
| if [[ ! -z $ERROR ]] |
| then |
| echo "Problem changing the file limit. Please try to reboot to use the higher limits. error: \n$ERROR" 1>&2 |
| fi |
| fi |
| ULIMIT_USER=`ulimit -u` |
| # Increase the hard user limit if it is lower than 2048. |
| if [[ $ULIMIT_USER -lt 4096 ]] |
| then |
| echo "User limits too low increasing the user limits" |
| ERROR2=$(ulimit -u 4096 2>&1 >/dev/null) |
| if [[ ! -z $ERROR2 ]] |
| then |
| echo "Problem changing the user limit. Please try to reboot to use the higher limits. error: \n$ERROR2" 1>&2 |
| fi |
| fi |
| # Set the value back to exit on non zero results. |
| set -e |
| fi |
| |
| if [[ "$FELT_USE_SNAPSHOT" == "false" || "$FELT_USE_SNAPSHOT" == "0" ]]; then |
| echo "[Snapshot mode: off]" |
| # Running without snapshot means there is high likelyhood of local changes. In |
| # that case, let's clear the snapshot to avoid any surprises. |
| rm -f "$SNAPSHOT_PATH" |
| rm -f "$STAMP_PATH" |
| install_deps |
| $DART_SDK_DIR/bin/dart "$DEV_DIR/felt.dart" $@ |
| else |
| # Create a new snapshot if any of the following is true: |
| # * SNAPSHOT_PATH is not a file, or |
| # * STAMP_PATH is not a file with nonzero size, or |
| # * Contents of STAMP_PATH is not our local git HEAD revision, or |
| # * pubspec.yaml last modified after pubspec.lock |
| if [[ ! -f $SNAPSHOT_PATH || ! -s "$STAMP_PATH" || "$(cat "$STAMP_PATH")" != "$REVISION" || "$WEB_UI_DIR/pubspec.yaml" -nt "$WEB_UI_DIR/pubspec.lock" ]]; then |
| echo "[Snapshot mode: on] (creating a new snapshot)" |
| install_deps |
| mkdir -p $DART_TOOL_DIR |
| |
| "$DART_SDK_DIR/bin/dart" --snapshot="$SNAPSHOT_PATH" --packages="$WEB_UI_DIR/.packages" "$SCRIPT_PATH" |
| echo "$REVISION" > "$STAMP_PATH" |
| fi |
| |
| $DART_SDK_DIR/bin/dart --packages="$WEB_UI_DIR/.packages" "$SNAPSHOT_PATH" $@ |
| fi |