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BackgroundMusic/build_and_install.sh

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#!/bin/bash
# vim: tw=100:
# This file is part of Background Music.
#
# Background Music is free software: you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation, either version 2 of the
# License, or (at your option) any later version.
#
# Background Music is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Background Music. If not, see <http://www.gnu.org/licenses/>.
#
# build_and_install.sh
#
# Copyright © 2016-2018 Kyle Neideck
# Copyright © 2016 Nick Jacques
#
# Builds and installs BGMApp, BGMDriver and BGMXPCHelper. Requires xcodebuild and Xcode.
#
# Don't let the length of this script scare you away from building/installing without it (using
# either Xcode or xcodebuild). 90% of this code is for error handling, logging, user friendliness,
# etc. See MANUAL-INSTALL.md, DEVELOPING.md and BGMDriver/BGMDriver/quick_install.sh.
#
# Safe mode
set -euo pipefail
IFS=$'\n\t'
# Subshells and functions inherit the ERR trap
set -o errtrace
# Go to the project directory.
cd "$( dirname "${BASH_SOURCE[0]}" )"
error_handler() {
LAST_COMMAND="$3" LAST_COMMAND_EXIT_STATUS="$2"
# Log the error.
echo "Failure in $0 at line $1. The last command was (probably)" >> ${LOG_FILE}
echo " ${LAST_COMMAND}" >> ${LOG_FILE}
echo "which exited with status ${LAST_COMMAND_EXIT_STATUS}." >> ${LOG_FILE}
echo "Error message: ${ERROR_MSG}" >> ${LOG_FILE}
echo >> ${LOG_FILE}
# Scrub username from log (and also real name just in case).
sed -i'tmp' "s/$(whoami)/[username removed]/g" ${LOG_FILE}
sed -i'tmp' "s/$(id -F)/[name removed]/g" ${LOG_FILE}
rm "${LOG_FILE}tmp"
# Print an error message.
echo "$(tput setaf 9)ERROR$(tput sgr0): Install failed at line $1 with the message:" >&2
echo -e "${ERROR_MSG}" >&2
echo >&2
echo "Feel free to report this. If you do, you'll probably want to include the" \
"build_and_install.log file from this directory ($(pwd)). But quickly skim through it" \
"first to check that it doesn't include any personal information. It shouldn't, but this" \
"is alpha software so you never know." >&2
echo >&2
echo "To try building and installing without this build script, see MANUAL-INSTALL.md." >&2
echo >&2
echo "You can also try ignoring compiler warnings with: $0 -w" >&2
echo >&2
echo "Error details:" >&2
echo "Line $1. The last command was (probably)" >&2
echo " ${LAST_COMMAND}" >&2
echo "which exited with status ${LAST_COMMAND_EXIT_STATUS}." >&2
echo >&2
# Finish logging debug info if the script fails early.
if ! [[ -z ${LOG_DEBUG_INFO_TASK_PID:-} ]]; then
wait ${LOG_DEBUG_INFO_TASK_PID}
fi
}
enable_error_handling() {
if [[ -z ${CONTINUE_ON_ERROR} ]] || [[ ${CONTINUE_ON_ERROR} -eq 0 ]]; then
set -e
# TODO: The version of Bash that ships with OSX only gives you the line number of the
# function the error occurred in -- not the line the error occurred on. There are a
# few solutions suggested on various websites, but none of them work.
trap 'error_handler ${LINENO} $? "${BASH_COMMAND}"' ERR
fi
}
disable_error_handling() {
set +e
trap - ERR
}
# Build for release by default. Use -d for a debug build.
CONFIGURATION=Release
#CONFIGURATION=Debug
XCODEBUILD_ACTION="install"
# The default is to clean before installing because we want the log file to have roughly the same
# information after every build.
CLEAN=clean
XCODEBUILD_OPTIONS=""
CONTINUE_ON_ERROR=0
# Update .gitignore if you change this.
LOG_FILE=build_and_install.log
# Empty the log file
echo -n > ${LOG_FILE}
COREAUDIOD_PLIST="/System/Library/LaunchDaemons/com.apple.audio.coreaudiod.plist"
# TODO: Should (can?) we use xcodebuild to get these from the Xcode project rather than duplicating
# them?
APP_PATH="/Applications"
APP_DIR="Background Music.app"
DRIVER_PATH="/Library/Audio/Plug-Ins/HAL"
DRIVER_DIR="Background Music Device.driver"
XPC_HELPER_DIR="BGMXPCHelper.xpc"
GENERAL_ERROR_MSG="Internal script error. Probably a bug in this script."
BUILD_FAILED_ERROR_MSG="A build command failed. Probably a compilation error."
BGMAPP_FAILED_TO_START_ERROR_MSG="Background Music (${APP_PATH}/${APP_DIR}) didn't seem to start \
up. It might just be taking a while.
If it didn't install correctly, you'll need to open the Sound control panel in System Preferences \
and change your output device at least once. Your sound probably won't work until you do. (Or you \
restart your computer.)
If you only have one device, you can create a temporary one by opening \
\"/Applications/Utilities/Audio MIDI Setup.app\", clicking the plus button and choosing \"Create \
Multi-Output Device\"."
ERROR_MSG="${GENERAL_ERROR_MSG}"
XCODEBUILD="/usr/bin/xcodebuild"
if ! [[ -x "${XCODEBUILD}" ]]; then
XCODEBUILD=$(which xcodebuild || true)
fi
# This check is last because it takes 10 seconds or so if it fails.
if ! [[ -x "${XCODEBUILD}" ]]; then
XCODEBUILD="$(/usr/bin/xcrun --find xcodebuild 2>>${LOG_FILE} || true)"
fi
RECOMMENDED_MIN_XCODE_VERSION=8
usage() {
echo "Usage: $0 [options]" >&2
echo -e "\t-n Don't clean before building/installing." >&2
echo -e "\t-d Debug build. (Release is the default.)" >&2
echo -e "\t-b Build only, don't install." >&2
echo -e "\t-w Ignore compiler warnings. (They're treated as errors by default.)" >&2
echo -e "\t-x [options] Extra options to pass to xcodebuild." >&2
echo -e "\t-c Continue on script errors. Might not be safe." >&2
echo -e "\t-h Print this usage statement." >&2
exit 1
}
bold_face() {
echo $(tput bold)$*$(tput sgr0)
}
# Takes a PID and returns 0 if the process is running.
is_alive() {
kill -0 $1 > /dev/null 2>&1 && return 0 || return 1
}
# Shows a "..." animation until the previous command finishes. Shows an error message and exits the
# script if the command fails. The return value will be the exit status of the command.
#
# Params:
# - The error message to show if the previous command fails.
# - An optional timeout in seconds.
show_spinner() {
disable_error_handling
local PREV_COMMAND_PID=$!
# Get the previous command as a string, with variables resolved. Assumes that if the command has
# a child process we just want the text of the child process's command. (And that it only has
# one child.)
local CHILD_PID=$(pgrep -P ${PREV_COMMAND_PID} | head -n1 || echo ${PREV_COMMAND_PID})
local PREV_COMMAND_STRING=$(ps -o command= ${CHILD_PID})
local TIMEOUT=${2:-0}
exec 3>&1 # Creates an alias so the following subshell can print to stdout.
DID_TIMEOUT=$(
I=1
while (is_alive ${PREV_COMMAND_PID}) && \
([[ ${TIMEOUT} -lt 1 ]] || [[ $I -lt ${TIMEOUT} ]])
do
printf '.' >&3
sleep 1
# Erase after we've printed three dots. (\b is backspace.)
[[ $((I % 3)) -eq 0 ]] && printf '\b\b\b \b\b\b' >&3
((I++))
done
if [[ $I -eq ${TIMEOUT} ]]; then
kill ${PREV_COMMAND_PID} >> ${LOG_FILE} 2>&1
echo 1
else
echo 0
fi)
exec 3<&- # Close the file descriptor.
wait ${PREV_COMMAND_PID}
local EXIT_STATUS=$?
# Clean up the dots.
printf '\b\b\b \b\b\b'
# Print an error message if the command fails.
# (wait returns 127 if the process has already exited.)
if [[ ${EXIT_STATUS} -ne 0 ]] && [[ ${EXIT_STATUS} -ne 127 ]]; then
ERROR_MSG="$1"
if [[ ${DID_TIMEOUT} -ne 0 ]]; then
ERROR_MSG+="\n\nCommand timed out after ${TIMEOUT} seconds."
fi
error_handler ${LINENO} ${EXIT_STATUS} "${PREV_COMMAND_STRING}"
if [[ ${CONTINUE_ON_ERROR} -eq 0 ]]; then
exit ${EXIT_STATUS}
fi
fi
enable_error_handling
return ${EXIT_STATUS}
}
parse_options() {
while getopts ":ndbwx:ch" opt; do
case $opt in
n)
CLEAN=""
;;
d)
CONFIGURATION="Debug"
;;
b)
# Just build; don't install.
XCODEBUILD_ACTION="build"
# The dirs xcodebuild will build in.
# TODO: If these dirs were created by running this script without -b, they'll be
# owned by root and xcodebuild will fail.
APP_PATH="./BGMApp/build"
DRIVER_PATH="./BGMDriver/build"
;;
w)
# TODO: What if they also pass their own OTHER_CFLAGS with -x?
XCODEBUILD_OPTIONS="${XCODEBUILD_OPTIONS} OTHER_CFLAGS=\"-Wno-error\""
;;
x)
XCODEBUILD_OPTIONS="$OPTARG"
;;
c)
CONTINUE_ON_ERROR=1
echo "$(tput setaf 11)WARNING$(tput sgr0): Ignoring errors."
disable_error_handling
;;
h)
usage
;;
\?)
echo "Invalid option: -$OPTARG" >&2
usage
;;
esac
done
}
# check_xcode return codes
CHECK_XCODE_NO_ERR=0
CHECK_XCODE_ERR_NO_CLTOOLS=1
CHECK_XCODE_ERR_NO_XCODE=2
CHECK_XCODE_ERR_NO_CLTOOLS_OR_XCODE=3
CHECK_XCODE_ERR_LICENSE_NOT_ACCEPTED=4
CHECK_XCODE_ERR_OLD_VERSION=5
# Checks if $XCODEBUILD is a usable xcodebuild. Exits with one of the status codes above.
check_xcode() {
local EXIT_CODE=${CHECK_XCODE_NO_ERR}
# First, check xcodebuild exists on the system an is an executable.
if ! [[ -x "${XCODEBUILD}" ]] || ! /usr/bin/xcode-select --print-path &>/dev/null || \
! pkgutil --pkg-info=com.apple.pkg.CLTools_Executables &>/dev/null; then
EXIT_CODE=${CHECK_XCODE_ERR_NO_CLTOOLS}
fi
# Check that Xcode is installed, not just the command line tools.
if [[ "${XCODE_VERSION}" == "-1" ]]; then
((EXIT_CODE+=2))
fi
# Check they've already accepted the Xcode license. This code is mostly copied from
# Homebrew/Library/Homebrew/brew.sh.
disable_error_handling
local XCRUN_OUTPUT # (Declared local before assigning so we can get $?.)
XCRUN_OUTPUT="$(/usr/bin/xcrun clang 2>&1)"
local XCRUN_STATUS="$?"
if [[ ${EXIT_CODE} -eq 0 ]] && \
[[ "${XCRUN_STATUS}" -ne 0 ]] && \
( [[ "${XCRUN_OUTPUT}" = *license* ]] || [[ "${XCRUN_OUTPUT}" = *licence* ]] ); then
EXIT_CODE=${CHECK_XCODE_ERR_LICENSE_NOT_ACCEPTED}
fi
enable_error_handling
# Version check.
local XCODE_MAJOR_VERSION="$(echo ${XCODE_VERSION} | sed 's/\..*$//g')"
if [[ ${EXIT_CODE} -eq 0 ]] && \
[[ "${XCODE_MAJOR_VERSION}" -lt ${RECOMMENDED_MIN_XCODE_VERSION} ]]
then
EXIT_CODE=${CHECK_XCODE_ERR_OLD_VERSION}
fi
exit ${EXIT_CODE}
}
# Expects CHECK_XCODE_TASK_PID to be set and error handling to be disabled. Returns 1 if we need to
# check for Xcode again.
handle_check_xcode_result() {
if [[ -z ${HANDLED_CHECK_XCODE_RESULT:-} ]]; then
HANDLED_CHECK_XCODE_RESULT=1
# Wait for the Xcode checks to finish.
wait ${CHECK_XCODE_TASK_PID}
CHECK_XCODE_TASK_STATUS=$?
# If there was a problem with Xcode/xcodebuild, print the error message and exit.
if [[ ${CHECK_XCODE_TASK_STATUS} -ne ${CHECK_XCODE_NO_ERR} ]]; then
handle_check_xcode_failure ${CHECK_XCODE_TASK_STATUS}
local STATUS=$?
return ${STATUS}
fi
fi
return 0
}
# Returns 1 if we need to check for Xcode again. Expects error handling to be disabled.
#
# Params:
# - The exit code of check_xcode.
handle_check_xcode_failure() {
local CONTINUE=${CONTINUE_ON_ERROR}
# No command line tools
if [[ $1 -eq ${CHECK_XCODE_ERR_NO_CLTOOLS} ]] || \
[[ $1 -eq ${CHECK_XCODE_ERR_NO_CLTOOLS_OR_XCODE} ]]; then
echo "$(tput setaf 9)ERROR$(tput sgr0): The Xcode Command Line Tools don't seem to be" \
"installed on your system." >&2
echo >&2
echo "If you have Xcode installed, you should be able to install them with" >&2
echo " sudo /usr/bin/xcode-select --install" >&2
echo "If not, you'll need to install Xcode (~9GB), because xcodebuild no longer works" \
"without it." >&2
echo >&2
fi
# No Xcode (that the command line tools are aware of)
if [[ $1 -eq ${CHECK_XCODE_ERR_NO_XCODE} ]] || \
[[ $1 -eq ${CHECK_XCODE_ERR_NO_CLTOOLS_OR_XCODE} ]]; then
if ! handle_check_xcode_failure_no_xcode $1; then
return 1
fi
fi
# They need to agree to the Xcode license.
if [[ $1 -eq ${CHECK_XCODE_ERR_LICENSE_NOT_ACCEPTED} ]]; then
echo "$(tput setaf 9)ERROR$(tput sgr0): You need to agree to the Xcode license before you" \
"can build Background Music. Run this command and then try again:" >&2
echo " sudo ${XCODEBUILD} -license" >&2
echo >&2
fi
# Xcode version is probably too old.
if [[ $1 -eq ${CHECK_XCODE_ERR_OLD_VERSION} ]]; then
echo "$(tput setaf 11)WARNING$(tput sgr0): Your version of Xcode (${XCODE_VERSION}) may" \
"not be recent enough to build Background Music. If you have a newer version" \
"installed, you can set the Xcode command line tools to use it with" >&2
echo " sudo /usr/bin/xcode-select --switch /the/path/to/your/Xcode.app" >&2
echo >&2
CONTINUE=1
fi
# Try to find Xcode and print a more useful error message.
if [[ $1 -eq ${CHECK_XCODE_ERR_NO_CLTOOLS} ]] || \
[[ $1 -eq ${CHECK_XCODE_ERR_NO_XCODE} ]] || \
[[ $1 -eq ${CHECK_XCODE_ERR_NO_CLTOOLS_OR_XCODE} ]] || \
[[ $1 -eq ${CHECK_XCODE_ERR_OLD_VERSION} ]]; then
echo "Searching for Xcode installations..." >&2
echo >&2
XCODE_PATHS=$(mdfind "kMDItemCFBundleIdentifier == 'com.apple.dt.Xcode' || \
kMDItemCFBundleIdentifier == 'com.apple.Xcode'")
if [[ "${XCODE_PATHS}" != "" ]]; then
echo "It looks like you have Xcode installed to:" >&2
echo "${XCODE_PATHS}" >&2
else
echo "None found." >&2
fi
fi
# Exit with an error status, unless we only printed a warning or were told to continue anyway.
if [[ ${CONTINUE} -eq 0 ]]; then
exit $1
fi
return 0
}
# Returns 1 if we need to check for Xcode again. Expects error handling to be disabled.
#
# Params:
# - The exit code of check_xcode.
handle_check_xcode_failure_no_xcode() {
# The problem could be that they have Xcode installed, but the command line tools can't find
# it.
# Just check for Xcode in the default location at first, since searching with mdfind can
# take a while.
if [[ $1 -eq ${CHECK_XCODE_ERR_NO_XCODE} ]] && [[ -d /Applications/Xcode.app ]]; then
echo "It looks like you have Xcode installed to /Applications/Xcode.app, but the" \
"Xcode command line tools aren't set to use it. Try" >&2
echo " sudo /usr/bin/xcode-select --switch /Applications/Xcode.app" >&2
echo "and then run this installer again." >&2
else
echo "$(tput setaf 9)ERROR$(tput sgr0): Unfortunately, Xcode (~9GB) is required to" \
"build Background Music, but ${XCODEBUILD} doesn't appear to be usable. If you" \
"do have Xcode installed, try telling the Xcode command line tools where to find" \
"it with" >&2
echo " sudo /usr/bin/xcode-select --switch /the/path/to/your/Xcode.app" >&2
echo "and then running this installer again." >&2
fi
echo >&2
# Explain how to revert the command we suggested.
local DEV_DIR_PATH # (Declared local before assigning so we can get $?.)
DEV_DIR_PATH=$(/usr/bin/xcode-select --print-path 2>/dev/null)
local XCSELECT_STATUS="$?"
if [[ "${XCSELECT_STATUS}" -eq 0 ]] && [[ "${DEV_DIR_PATH}" != "" ]]; then
echo "If you want to change it back afterwards for some reason, use" >&2
echo " sudo /usr/bin/xcode-select --switch ${DEV_DIR_PATH}" >&2
fi
echo >&2
# Print the error message from xcodebuild.
local OUTPUT_MSG="Output from ${XCODEBUILD}: ------------------------------------------"
echo "${OUTPUT_MSG}" >&2
"${XCODEBUILD}" -version >&2 || true
echo "${OUTPUT_MSG}" | tr '[:print:]' - >&2
echo >&2
# Offer to switch if it will probably work.
if [[ -d /Applications/Xcode.app ]]; then
local SWITCH_CMD="sudo xcode-select --switch /Applications/Xcode.app"
read -p "Try \"$(bold_face ${SWITCH_CMD})\" now (y/N)? " TRY_SWITCH
if [[ "${TRY_SWITCH}" == "y" ]] || [[ "${TRY_SWITCH}" == "Y" ]]; then
echo
echo "+ ${SWITCH_CMD}"
eval ${SWITCH_CMD}
local XCS_STATUS=$?
if [[ ${XCS_STATUS} -eq 0 ]]; then
# Return that we should call check_xcode again to see if it worked.
echo
echo Seemed to work. Trying to start installation again...
echo
return 1
else
echo >&2
echo "\"$(bold_face ${SWITCH_CMD})\" failed with exit status ${XCS_STATUS}." >&2
exit ${XCS_STATUS}
fi
fi
echo
fi
return 0
}
log_debug_info() {
# Log some environment details, version numbers, etc. This takes a while, so we do it in the
# background.
(disable_error_handling
echo "Background Music Build Log" >> ${LOG_FILE}
echo "----" >> ${LOG_FILE}
echo "Build script args: $*" >> ${LOG_FILE}
echo "System details:" >> ${LOG_FILE}
sw_vers >> ${LOG_FILE} 2>&1
# The same as uname -a, except without printing the nodename (for privacy).
uname -mrsv >> ${LOG_FILE} 2>&1
/bin/bash --version >> ${LOG_FILE} 2>&1
/usr/bin/env python --version >> ${LOG_FILE} 2>&1
echo "On git branch: $(git rev-parse --abbrev-ref HEAD 2>&1)" >> ${LOG_FILE}
echo "Most recent commit: $(git rev-parse HEAD 2>&1)" \
"(\"$(git show -s --format=%s HEAD 2>&1)\")" >> ${LOG_FILE}
echo "Using xcodebuild: ${XCODEBUILD}" >> ${LOG_FILE}
echo "Using BGMXPCHelper path: ${XPC_HELPER_PATH}" >> ${LOG_FILE}
xcode-select --version >> ${LOG_FILE} 2>&1
echo "Xcode path: $(xcode-select --print-path 2>&1)" >> ${LOG_FILE}
echo "Xcode version:" >> ${LOG_FILE}
xcodebuild -version >> ${LOG_FILE} 2>&1
echo "Xcode SDKs:" >> ${LOG_FILE}
xcodebuild -showsdks >> ${LOG_FILE} 2>&1
xcrun --version >> ${LOG_FILE} 2>&1
echo "Clang version:" >> ${LOG_FILE}
$(/usr/bin/xcrun --find clang 2>&1) --version >> ${LOG_FILE} 2>&1
echo "launchctl version: $(launchctl version 2>&1)" >> ${LOG_FILE}
echo "----" >> ${LOG_FILE}) &
LOG_DEBUG_INFO_TASK_PID=$!
}
# Cleans the build products and intermediate files for a build scheme.
#
# Params:
# - The Xcode build scheme to clean, e.g. "Background Music Device".
clean() {
if [[ "${CLEAN}" != "" ]]; then
${SUDO} "${XCODEBUILD}" -scheme "$1" \
-configuration ${CONFIGURATION} \
BUILD_DIR=./build \
${CLEAN} >> ${LOG_FILE} 2>&1
fi
}
# Register our handler so we can print a message and clean up if there's an error.
enable_error_handling
parse_options "$@"
# Warn if running as root.
if [[ $(id -u) -eq 0 ]]; then
echo "$(tput setaf 11)WARNING$(tput sgr0): This script is not intended to be run as root. Run" \
"it normally and it'll sudo when it needs to." >&2
fi
# Print initial message.
if [[ "${XCODEBUILD_ACTION}" == "install" ]]; then
XPC_HELPER_PATH="$(BGMApp/BGMXPCHelper/safe_install_dir.sh)"
echo "$(bold_face About to install Background Music). Please pause all audio, if you can."
[[ "${CONFIGURATION}" == "Debug" ]] && echo "Debug build."
echo
echo "This script will install:"
echo " - ${APP_PATH}/${APP_DIR}"
echo " - ${DRIVER_PATH}/${DRIVER_DIR}"
echo " - ${XPC_HELPER_PATH}/${XPC_HELPER_DIR}"
echo " - /Library/LaunchDaemons/com.bearisdriving.BGM.XPCHelper.plist"
echo
elif [[ "${XCODEBUILD_ACTION}" == "build" ]]; then
XPC_HELPER_PATH="${APP_PATH}"
echo "$(bold_face Building Background Music...)"
echo
fi
# Make sure Xcode and the command line tools are installed and recent enough.
# This sets XCODE_VERSION to major.minor, e.g. 8.3, or -1 if Xcode isn't installed.
XCODE_VERSION=$((${XCODEBUILD} -version 2>/dev/null || echo 'V -1') | head -n 1 | awk '{ print $2 }')
check_xcode &
CHECK_XCODE_TASK_PID=$!
if [[ "${XCODEBUILD_ACTION}" == "install" ]]; then
read -p "Continue (y/N)? " CONTINUE_INSTALLATION
if [[ "${CONTINUE_INSTALLATION}" != "y" ]] && [[ "${CONTINUE_INSTALLATION}" != "Y" ]]; then
echo "Installation cancelled."
exit 0
fi
fi
# If the check_xcode process has already finished, we can check the result early.
NEED_TO_HANDLE_CHECK_XCODE_RESULT=1
if ! is_alive ${CHECK_XCODE_TASK_PID}; then
disable_error_handling
handle_check_xcode_result
NEED_TO_HANDLE_CHECK_XCODE_RESULT=$?
enable_error_handling
fi
if [[ "${XCODEBUILD_ACTION}" == "install" ]]; then
# Update the user's sudo timestamp. (Prompts the user for their password.)
# Don't call sudo -v if this is a Travis CI build.
if ([[ -z ${TRAVIS:-} ]] || [[ "${TRAVIS}" != true ]]) && ! sudo -v; then
echo "$(tput setaf 9)ERROR$(tput sgr0): This script must be run by a user with" \
"administrator (sudo) privileges." >&2
exit 1
fi
echo
fi
while [[ ${NEED_TO_HANDLE_CHECK_XCODE_RESULT} -ne 0 ]]; do
disable_error_handling
handle_check_xcode_result
NEED_TO_HANDLE_CHECK_XCODE_RESULT=$?
enable_error_handling
done
log_debug_info $*
if [[ "${XCODEBUILD_ACTION}" == "install" ]]; then
SUDO="sudo"
ACTIONING="Installing"
else
# No need to sudo if we're only building.
SUDO=""
ACTIONING="Building"
fi
# Enable AddressSanitizer in debug builds to catch memory bugs. Allow ENABLE_ASAN to be set as an
# environment variable by only setting it here if it isn't already set. (Used by package.sh.)
if [[ "${CONFIGURATION}" == "Debug" ]]; then
ENABLE_ASAN="${ENABLE_ASAN:-YES}"
else
ENABLE_ASAN="${ENABLE_ASAN:-NO}"
fi
# Clean all projects. Done separately to workaround what I think is a bug in Xcode 10.0. If you just
# add "clean" to the other xcodebuild commands, they seem to fail because of the DSTROOT="/" arg.
if [[ "${CLEAN}" != "" ]]; then
# Disable the -e shell option and error trap for build commands so we can handle errors
# differently.
(disable_error_handling
clean "Background Music Device"
clean "PublicUtility"
clean "BGMXPCHelper"
clean "Background Music"
# Also delete the build dirs as files/dirs left in them can make the install step fail and,
# if you're using Xcode 10, the commands above will have cleaned the DerivedData dir but not
# the build dirs. I think this is a separate Xcode bug. See
# <http://www.openradar.me/40906897>.
${SUDO} /bin/rm -rf BGMDriver/build BGMApp/build >> ${LOG_FILE} 2>&1) &
echo "Cleaning"
show_spinner "Clean command failed. Try deleting the directories BGMDriver/build and \
BGMApp/build manually and running '$0 -n' to skip the cleaning step."
fi
# BGMDriver
echo "[1/3] ${ACTIONING} the virtual audio device $(bold_face ${DRIVER_DIR}) to" \
"$(bold_face ${DRIVER_PATH})" \
| tee -a ${LOG_FILE}
(disable_error_handling
# Build and install BGMDriver.
${SUDO} "${XCODEBUILD}" -scheme "Background Music Device" \
-configuration ${CONFIGURATION} \
-enableAddressSanitizer ${ENABLE_ASAN} \
BUILD_DIR=./build \
RUN_CLANG_STATIC_ANALYZER=0 \
DSTROOT="/" \
${XCODEBUILD_OPTIONS} \
"${XCODEBUILD_ACTION}" >> ${LOG_FILE} 2>&1) &
show_spinner "${BUILD_FAILED_ERROR_MSG}"
# BGMXPCHelper
echo "[2/3] ${ACTIONING} $(bold_face ${XPC_HELPER_DIR}) to $(bold_face ${XPC_HELPER_PATH})" \
| tee -a ${LOG_FILE}
(disable_error_handling
${SUDO} "${XCODEBUILD}" -scheme BGMXPCHelper \
-configuration ${CONFIGURATION} \
-enableAddressSanitizer ${ENABLE_ASAN} \
BUILD_DIR=./build \
RUN_CLANG_STATIC_ANALYZER=0 \
DSTROOT="/" \
INSTALL_PATH="${XPC_HELPER_PATH}" \
${XCODEBUILD_OPTIONS} \
"${XCODEBUILD_ACTION}" >> ${LOG_FILE} 2>&1) &
show_spinner "${BUILD_FAILED_ERROR_MSG}"
# BGMApp
echo "[3/3] ${ACTIONING} $(bold_face ${APP_DIR}) to $(bold_face ${APP_PATH})" \
| tee -a ${LOG_FILE}
(disable_error_handling
${SUDO} "${XCODEBUILD}" -scheme "Background Music" \
-configuration ${CONFIGURATION} \
-enableAddressSanitizer ${ENABLE_ASAN} \
BUILD_DIR=./build \
RUN_CLANG_STATIC_ANALYZER=0 \
DSTROOT="/" \
${XCODEBUILD_OPTIONS} \
"${XCODEBUILD_ACTION}" >> ${LOG_FILE} 2>&1) &
show_spinner "${BUILD_FAILED_ERROR_MSG}"
if [[ "${XCODEBUILD_ACTION}" == "install" ]]; then
# Fix Background Music.app owner/group.
#
# We have to run xcodebuild as root to install BGMXPCHelper because it installs to directories
# owned by root. But that means the build directory gets created by root, and since BGMApp uses
# the same build directory we have to run xcodebuild as root to install BGMApp as well.
#
# TODO: Can't we just chown -R the build dir before we install BGMApp? Then we wouldn't have to
# install BGMApp as root. (But maybe still handle the unlikely case of APP_PATH not being
# user-writable.)
sudo chown -R "$(whoami):admin" "${APP_PATH}/${APP_DIR}"
# Fix the build directories' owner/group. This is mainly so the whole source directory can be
# deleted easily after installing.
sudo chown -R "$(whoami):admin" "BGMApp/build" "BGMDriver/build"
# Restart coreaudiod.
echo "Restarting coreaudiod to load the virtual audio device." \
| tee -a ${LOG_FILE}
# The extra or-clauses are fallback versions of the command that restarts coreaudiod. Apparently
# some of these commands don't work with older versions of launchctl, so I figure there's no
# harm in trying a bunch of different ways (which should all work).
(sudo launchctl kill SIGTERM system/com.apple.audio.coreaudiod &>/dev/null || \
sudo launchctl kill TERM system/com.apple.audio.coreaudiod &>/dev/null || \
sudo launchctl kill 15 system/com.apple.audio.coreaudiod &>/dev/null || \
sudo launchctl kill -15 system/com.apple.audio.coreaudiod &>/dev/null || \
(sudo launchctl unload "${COREAUDIOD_PLIST}" &>/dev/null && \
sudo launchctl load "${COREAUDIOD_PLIST}" &>/dev/null) || \
sudo killall coreaudiod &>/dev/null) && \
sleep 5
# Invalidate sudo ticket
sudo -k
# Open BGMApp. We have to change the default audio device after restarting coreaudiod and this
# is the easiest way.
echo "Launching Background Music."
ERROR_MSG="${BGMAPP_FAILED_TO_START_ERROR_MSG}"
open "${APP_PATH}/${APP_DIR}"
# Ignore script errors from this point.
disable_error_handling
# Wait up to 5 seconds for Background Music to start.
(trap 'exit 1' TERM
while ! (ps -Ao ucomm= | grep 'Background Music' > /dev/null); do
sleep 1
done) &
show_spinner "${BGMAPP_FAILED_TO_START_ERROR_MSG}" 5
fi
echo "Done."
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