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inotify-pub
executable file
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inotify-pub
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#!/bin/sh
# Copyright 2016 W. Trevor King <wking@tremily.us>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# usage: inotify-pub [DIRECTORY [EVENT]]
#
# Reads a message from stdin and writes it to a timestamped file under
# DIRECTORY. If EVENT is set, tag the event with that value. If
# EVENT is not set, tag the event with 'event'.
DIRECTORY="${1:-.}"
EVENT="${2:-event}"
TMP_DIR="${DIRECTORY}/tmp"
EVENT_DIR="${DIRECTORY}/events"
DATE=$(TZ=UTC date --iso-8601=ns) &&
mkdir -p "${TMP_DIR}" &&
mkdir -p "${EVENT_DIR}" &&
cat > "${TMP_DIR}/${DATE}_${EVENT}" && # ideally O_CREAT & O_EXCL
mv --no-clobber "${TMP_DIR}/${DATE}_${EVENT}" "${EVENT_DIR}" # ideally fail on conflict