blob: 1aef3b436490ae409e1cc7800831ab3c66905c0d [file] [log] [blame]
#!/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 "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
if [ -z "`which gclient`" ]
then
echo "ERROR: gclient is not in your PATH"
echo "Fix: add the path to your installation of depot_tools to your PATH"
exit 1
fi
GCLIENT_PATH=`which gclient`
if [ -z "`which autoninja`" ]
then
echo "ERROR: autoninja is not in your PATH"
echo "Fix: add the path to your installation of depot_tools to your PATH"
exit 1
fi
NINJA_PATH=`which autoninja`
ENGINE_SRC_DIR="$(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="${WEB_UI_DIR}/.dart_tool"
DART_PATH="$DART_SDK_DIR/bin/dart"
SNAPSHOT_PATH="${DART_TOOL_DIR}/felt.snapshot"
STAMP_PATH="${DART_TOOL_DIR}/felt.snapshot.stamp"
SCRIPT_PATH="${DEV_DIR}/felt.dart"
REVISION="$(cd "$FLUTTER_DIR"; git rev-parse HEAD)"
if [ ! -f "${DART_PATH}" ]
then
echo "Compiling the Dart SDK."
gclient sync
$GN --unoptimized --full-dart-sdk
"$NINJA_PATH" -C "$HOST_DEBUG_UNOPT_DIR"
fi
install_deps() {
echo "Running \`dart pub get\` in 'engine/src/flutter/lib/web_ui'"
(cd "$WEB_UI_DIR"; $DART_PATH pub get)
echo "Running \`dart pub get\` in 'engine/src/flutter/web_sdk/web_engine_tester'"
(cd "$FLUTTER_DIR/web_sdk/web_engine_tester"; $DART_PATH pub 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 likelihood 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