mirror of
https://github.com/firebase/firebase-ios-sdk
synced 2026-11-10 22:45:59 +05:45
117 lines
2.5 KiB
Bash
Executable File
117 lines
2.5 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2020 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# USAGE: run_database_emulator.sh { run | start | stop }
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#
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# Downloads and runs the Firebase Realtime Databas emulator
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set -euo pipefail
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VERSION='4.7.2'
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FILENAME="firebase-database-emulator-v${VERSION}.jar"
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URL="https://storage.googleapis.com/firebase-preview-drop/emulator/${FILENAME}"
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cache_dir="${HOME}/.cache/firebase/emulators"
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jar="${cache_dir}/${FILENAME}"
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cd $(git rev-parse --show-toplevel)
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pid_file="firebase-database-emulator.pid"
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log_file="firebase-database-emulator.log"
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function help() {
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cat 1>&2 <<EOF
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run_database_emulator.sh {run|start|stop}
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EOF
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}
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# Downloads the emulator jar if it doesn't already exist
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function ensure_exists() {
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if [[ ! -f "$jar" ]]; then
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echo "Downloading Firebase Realtime Database emulator" 1>&2
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mkdir -p "${cache_dir}"
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curl -s -o "${jar}" "${URL}"
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fi
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}
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# Runs the emulator synchronously
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function run() {
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exec java -jar "$jar" "$@"
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}
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# Verifies the emulator isn't already running at the PID in the pid_file
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function check_not_running() {
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if [[ -f "${pid_file}" ]]; then
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pid=$(cat "${pid_file}")
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if kill -0 "${pid}" >& /dev/null; then
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echo "Firebase Realtime Database emulator already running as PID ${pid}" 1>&2
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return 1
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fi
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echo "Removing stale PID file" 1>&2
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rm "${pid_file}"
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fi
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}
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# Starts the emulator in the background
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function start() {
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check_not_running
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run "$@" >& "${log_file}" &
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pid="$!"
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echo "$pid" > "${pid_file}"
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echo "Firebase Realtime Database emulator running as PID ${pid}" 1>&2
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}
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# Stops the emulator if it's running
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function stop() {
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if [[ -f "${pid_file}" ]]; then
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pid=$(cat "${pid_file}")
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kill "${pid}" || true
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rm "${pid_file}"
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fi
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}
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command=run
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if [[ $# -gt 0 ]]; then
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command="$1"
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shift
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fi
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case "${command}" in
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run)
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ensure_exists
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run "$@"
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;;
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start)
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ensure_exists
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start
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;;
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stop)
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stop
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;;
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download)
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ensure_exists
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;;
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*)
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help
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exit 1
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;;
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esac
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