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angular-cn/tools/saucelabs/sauce-service.sh

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#!/usr/bin/env bash
set -u -e -o pipefail
####################################################################################################
# Some helper funtions
@echo() {
echo "# $*"
}
@warn() {
@echo "Warning: $*" >&2
}
@fail() {
@echo "Error! $*" >&2
exit 1
}
@remove() {
local f="$1"
if [[ -f ${f} ]]; then
@echo "Removing ${f}"
rm -f "${f}" || @fail "Can not delete ${f} file"
fi
}
@kill() {
for p in $1; do
if kill -0 ${p} >/dev/null 2>&1; then
kill ${p}
sleep 2
if kill -0 ${p} >/dev/null 2>&1; then
kill -9 ${p}
sleep 2
fi
fi
done
}
@wait_for() {
local m="$1"
local f="$2"
if [[ ! -f "${f}" ]]; then
printf "# ${m} (${f})"
while [[ ! -f "${f}" ]]; do
printf "."
sleep 0.5
done
printf "\n"
fi
}
####################################################################################################
# Sauce service functions
readonly SCRIPT_DIR=$(cd $(dirname $0); pwd)
readonly TMP_DIR="/tmp/angular/sauce-service"
mkdir -p ${TMP_DIR}
# Location for the saucelabs log file.
readonly SAUCE_LOG_FILE="${TMP_DIR}/sauce-connect.log"
# Location for the saucelabs ready to connection process id lock file.
readonly SAUCE_PID_FILE="${TMP_DIR}/sauce-connect.pid"
# Location for the saucelabs ready to connect lock file.
readonly SAUCE_READY_FILE="${TMP_DIR}/sauce-connect.lock"
# Location for the saucelabs params file for use by test runner.
readonly SAUCE_PARAMS_JSON_FILE="${TMP_DIR}/sauce-connect-params.json"
# Amount of seconds we wait for sauceconnect to establish a tunnel instance. In order to not
# acquire CircleCI instances for too long if sauceconnect fails, we need a connect timeout.
readonly SAUCE_READY_FILE_TIMEOUT=120
readonly SERVICE_LOCK_FILE="${TMP_DIR}/service.lock"
readonly SERVICE_START_FILE="${TMP_DIR}/service.start"
readonly SERVICE_PID_FILE="${TMP_DIR}/service.pid"
readonly SERVICE_LOG_FILE="${TMP_DIR}/service.log"
service-setup-command() {
if [[ -z "${SAUCE_USERNAME:-}" ]]; then
@fail "SAUCE_USERNAME environment variable required"
fi
if [[ -z "${SAUCE_ACCESS_KEY:-}" ]]; then
@fail "SAUCE_ACCESS_KEY environment variable required"
fi
if [[ -z "${SAUCE_TUNNEL_IDENTIFIER:-}" ]]; then
@fail "SAUCE_TUNNEL_IDENTIFIER environment variable required"
fi
local unameOut="$(uname -s)"
case "${unameOut}" in
Linux*) local machine=linux ;;
Darwin*) local machine=darwin ;;
CYGWIN*) local machine=windows ;;
MINGW*) local machine=windows ;;
MSYS_NT*) local machine=windows ;;
*) local machine=linux
printf "\nUnrecongized uname '${unameOut}'; defaulting to use node for linux.\n" >&2
printf "Please file an issue to https://github.com/bazelbuild/rules_nodejs/issues if \n" >&2
printf "you would like to add your platform to the supported rules_nodejs node platforms.\n\n" >&2
;;
esac
case "${machine}" in
# Path to sauce connect executable
linux)
if [[ -z "${BUILD_WORKSPACE_DIRECTORY:-}" ]]; then
# Started manually
SAUCE_CONNECT="${SCRIPT_DIR}/../../node_modules/sauce-connect/bin/sc"
else
# Started via `bazel run`
SAUCE_CONNECT="${BUILD_WORKSPACE_DIRECTORY}/node_modules/sauce-connect/bin/sc"
fi
;;
*)
if [[ -z "${SAUCE_CONNECT:-}" ]]; then
@fail "SAUCE_CONNECT environment variable is required on non-linux environments"
exit 1
fi
;;
esac
if [[ ! -f ${SAUCE_CONNECT} ]]; then
@fail "sc binary not found at ${SAUCE_CONNECT}"
fi
echo "{ \"SAUCE_USERNAME\": \"${SAUCE_USERNAME}\", \"SAUCE_ACCESS_KEY\": \"${SAUCE_ACCESS_KEY}\", \"SAUCE_TUNNEL_IDENTIFIER\": \"${SAUCE_TUNNEL_IDENTIFIER}\", \"SAUCE_LOCALHOST_ALIAS_DOMAIN\": \"${SAUCE_LOCALHOST_ALIAS_DOMAIN:-}\" }" > ${SAUCE_PARAMS_JSON_FILE}
# Command arguments that will be passed to sauce-connect.
# By default we disable SSL bumping for all requests. This is because SSL bumping is
# not needed for our test setup and in order to perform the SSL bumping, Saucelabs
# intercepts all HTTP requests in the tunnel VM and modifies them. This can cause
# flakiness as it makes all requests dependent on the SSL bumping middleware.
# See: https://wiki.saucelabs.com/display/DOCS/Troubleshooting+Sauce+Connect#TroubleshootingSauceConnect-DisablingSSLBumping
local sauce_args=(
"--no-ssl-bump-domains all"
"--logfile ${SAUCE_LOG_FILE}"
"--pidfile ${SAUCE_PID_FILE}"
"--readyfile ${SAUCE_READY_FILE}"
"--tunnel-identifier ${SAUCE_TUNNEL_IDENTIFIER}"
"--user ${SAUCE_USERNAME}"
# Don't add the --api-key here so we don't echo it out in service-pre-start
)
if [[ -n "${SAUCE_LOCALHOST_ALIAS_DOMAIN:-}" ]]; then
# Ensures that requests to the localhost alias domain are always resolved through the tunnel.
# This environment variable is usually configured on CI, and refers to a domain that has been
# locally configured in the current machine's hosts file (e.g. `/etc/hosts`). The domain should
# resolve to the current machine in Saucelabs VMs, so we need to ensure that it is resolved
# through the tunnel we going to create.
sauce_args+=("--tunnel-domains ${SAUCE_LOCALHOST_ALIAS_DOMAIN}")
fi
@echo "Sauce connect will be started with:"
echo " ${SAUCE_CONNECT} ${sauce_args[@]}"
SERVICE_COMMAND="${SAUCE_CONNECT} ${sauce_args[@]} --api-key ${SAUCE_ACCESS_KEY}"
}
# Called by pre-start & post-stop
service-cleanup() {
if [[ -f "${SAUCE_PID_FILE}" ]]; then
local p=$(cat "${SAUCE_PID_FILE}")
@echo "Stopping Sauce Connect (pid $p)..."
@kill $p
fi
@remove "${SAUCE_PID_FILE}"
@remove "${SAUCE_READY_FILE}"
@remove "${SAUCE_PARAMS_JSON_FILE}"
}
# Called before service is setup
service-pre-setup() {
service-cleanup
}
# Called after service is setup
service-post-setup() {
@echo " sauce params : ${SAUCE_PARAMS_JSON_FILE}"
}
# Called before service is started
service-pre-start() {
return
}
# Called after service is started
service-post-start() {
if [[ ! -f "${SAUCE_PID_FILE}" ]]; then
printf "# Waiting for Sauce Connect Proxy process (${SAUCE_PID_FILE})"
while [[ ! -f "${SAUCE_PID_FILE}" ]]; do
if ! @serviceStatus >/dev/null 2>&1; then
printf "\n"
@serviceStop
@echo "Service failed to start!"
service-failed-setup
exit 1
fi
printf "."
sleep 0.5
done
printf "\n"
fi
@echo "Sauce Connect Proxy started (pid $(cat "${SAUCE_PID_FILE}"))"
}
# Called if service fails to start
service-failed-setup() {
if [[ -f "${SERVICE_LOG_FILE}" ]]; then
@echo "tail ${SERVICE_LOG_FILE}:"
echo "--------------------------------------------------------------------------------"
tail "${SERVICE_LOG_FILE}"
echo "--------------------------------------------------------------------------------"
echo "^^^^^ ${SERVICE_LOG_FILE} ^^^^^"
fi
}
# Called by ready-wait action
service-ready-wait() {
if [[ ! -f "${SAUCE_PID_FILE}" ]]; then
@fail "Sauce Connect not running"
fi
if [[ ! -f "${SAUCE_READY_FILE}" ]]; then
# Wait for saucelabs tunnel to connect
printf "# Waiting for saucelabs tunnel to connect (${SAUCE_READY_FILE})"
counter=0
while [[ ! -f "${SAUCE_READY_FILE}" ]]; do
counter=$((counter + 1))
# Counter needs to be multiplied by two because the while loop only sleeps a half second.
# This has been made in favor of better progress logging (printing dots every half second)
if [ $counter -gt $[${SAUCE_READY_FILE_TIMEOUT} * 2] ]; then
@echo "Timed out after ${SAUCE_READY_FILE_TIMEOUT} seconds waiting for tunnel ready file."
if [[ -f "${SAUCE_LOG_FILE}" ]]; then
echo "================================================================================"
echo "${SAUCE_LOG_FILE}:"
cat "${SAUCE_LOG_FILE}"
fi
exit 5
fi
printf "."
sleep 0.5
done
printf "\n"
@echo "Saucelabs tunnel connected"
else
@echo "Saucelabs tunnel already connected"
fi
}
# Called before service is stopped
service-pre-stop() {
return
}
# Called after service is stopped
service-post-stop() {
service-cleanup
}
####################################################################################################
# Generic service functions
# This uses functions setup above but nothing below should be specific to saucelabs
@serviceLock() {
# Check is Lock File exists, if not create it and set trap on exit
printf "# Waiting for service action lock (${SERVICE_LOCK_FILE})"
while true; do
if { set -C; 2>/dev/null >"${SERVICE_LOCK_FILE}"; }; then
trap "rm -f \"${SERVICE_LOCK_FILE}\"" EXIT
printf "\n"
break
fi
printf "."
sleep 0.5
done
@echo "Acquired service action lock"
}
@serviceStatus() {
if [ -f "${SERVICE_PID_FILE}" ] && [ ! -z "$(cat "${SERVICE_PID_FILE}")" ]; then
local p=$(cat "${SERVICE_PID_FILE}")
if kill -0 $p >/dev/null 2>&1; then
@echo "Service is running (pid $p)"
return 0
else
@echo "Service is not running (process PID $p not exists)"
return 1
fi
else
@echo "Service is not running"
return 2
fi
}
@serviceSetup() {
if @serviceStatus >/dev/null 2>&1; then
@echo "Service already running (pid $(cat "${SERVICE_PID_FILE}"))"
return 0
fi
@echo "Setting up service..."
@remove "${SERVICE_PID_FILE}"
@remove "${SERVICE_START_FILE}"
touch "${SERVICE_LOG_FILE}" >/dev/null 2>&1 || @fail "Can not create ${SERVICE_LOG_FILE} file"
@echo " service pid : ${SERVICE_PID_FILE}"
@echo " service logs : ${SERVICE_LOG_FILE}"
service-pre-setup
service-setup-command
(
(
if [[ -z "${SERVICE_COMMAND:-}" ]]; then
@fail "No SERVICE_COMMAND is set"
fi
@wait_for "Waiting for start file" "${SERVICE_START_FILE}"
${SERVICE_COMMAND}
) >>"${SERVICE_LOG_FILE}" 2>&1
) &
echo $! >"${SERVICE_PID_FILE}"
if @serviceStatus >/dev/null 2>&1; then
@echo "Service setup (pid $(cat "${SERVICE_PID_FILE}"))"
service-post-setup
else
@echo "Error setting up Service!"
service-failed-setup
exit 1
fi
return $?
}
@serviceStart() {
if @serviceStatus >/dev/null 2>&1; then
@echo "Service already setup (pid $(cat "${SERVICE_PID_FILE}"))"
else
@serviceSetup
fi
if [[ -f "${SERVICE_START_FILE}" ]]; then
@echo "Service already started"
else
@echo "Starting service..."
service-pre-start
touch "${SERVICE_START_FILE}" >/dev/null 2>&1 || @err "Can not create ${SERVICE_START_FILE} file"
service-post-start
@echo "Service started"
fi
}
@serviceStop() {
if @serviceStatus >/dev/null 2>&1; then
touch "${SERVICE_PID_FILE}" >/dev/null 2>&1 || @fail "Can not touch ${SERVICE_PID_FILE} file"
service-pre-stop
@echo "Stopping sevice (pid $(cat "${SERVICE_PID_FILE}"))..."
@kill $(cat "${SERVICE_PID_FILE}")
if @serviceStatus >/dev/null 2>&1; then
@fail "Error stopping Service! Service already running with PID $(cat "${SERVICE_PID_FILE}")"
else
@echo "Service stopped"
@remove "${SERVICE_PID_FILE}"
@remove "${SERVICE_START_FILE}"
service-post-stop
fi
return 0
else
@warn "Service is not running"
@remove "${SERVICE_PID_FILE}"
@remove "${SERVICE_START_FILE}"
service-post-stop
fi
}
@serviceStartReadyWait() {
@serviceStart
@serviceReadyWait
}
@serviceReadyWait() {
service-ready-wait
}
@serviceRestart() {
@serviceStop
@serviceStart
}
@serviceTail() {
@echo "tail ${SERVICE_LOG_FILE}:"
tail -f "${SERVICE_LOG_FILE}"
}
@serviceLog() {
@echo "cat ${SERVICE_LOG_FILE}:"
echo "--------------------------------------------------------------------------------"
cat "${SERVICE_LOG_FILE}"
echo "--------------------------------------------------------------------------------"
echo "^^^^^ ${SERVICE_LOG_FILE} ^^^^^"
}
case "${1:-}" in
setup)
@serviceLock
@serviceSetup
;;
start)
@serviceLock
@serviceStart
;;
start-ready-wait)
@serviceLock
@serviceStartReadyWait
;;
ready-wait)
@serviceLock
@serviceReadyWait
;;
stop)
@serviceLock
@serviceStop
;;
restart)
@serviceLock
@serviceRestart
;;
status)
@serviceLock
@serviceStatus
;;
run)
(
service-setup-command
if [[ -z "${SERVICE_COMMAND:-}" ]]; then
@fail "No SERVICE_COMMAND is set"
fi
${SERVICE_COMMAND}
)
;;
log)
@serviceLog
;;
tail)
@serviceTail
;;
*)
@echo "Actions: [setup|start|start-read-wait|ready-wait|stop|restart|status|run|tail]"
exit 1
;;
esac
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