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Rewrite of the installation script and accompanying documentation. (#15)
Rewrite of the installation script and accompanying documentation.
This commit is contained in:
Dolf Starreveld
committed by
Scott Lamb
Scott Lamb
parent
0d69f4f49b
commit
760b8d95fb
236
scripts/script-functions.sh
Executable file
236
scripts/script-functions.sh
Executable file
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#
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# This file is part of Moonfire NVR, a security camera network video recorder.
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# Copyright (C) 2016-2017 Scott Lamb <slamb@slamb.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# In addition, as a special exception, the copyright holders give
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# permission to link the code of portions of this program with the
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# OpenSSL library under certain conditions as described in each
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# individual source file, and distribute linked combinations including
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# the two.
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#
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# You must obey the GNU General Public License in all respects for all
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# of the code used other than OpenSSL. If you modify file(s) with this
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# exception, you may extend this exception to your version of the
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# file(s), but you are not obligated to do so. If you do not wish to do
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# so, delete this exception statement from your version. If you delete
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# this exception statement from all source files in the program, then
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# also delete it here.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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if [ -z "$BASH_VERSION" ]; then
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echo "Script must run using bash (/bin/bash), not dash (/bin/sh)."
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exit 1
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fi
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# Useful constants
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#
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NODE_MIN_VERSION="8"
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YARN_MIN_VERSION="1.0"
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CARGO_MIN_VERSION="0.2"
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RUSTC_MIN_VERSION="1.17"
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FFMPEG_MIN_VERSION="55.1.101"
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FFMPEG_RELEASE_VERSION="3.4"
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normalizeDirPath()
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{
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echo "$( cd -P "$1" && pwd )"
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}
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resolvePath()
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{
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local d="$1"
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while [ -h "$d" ]; do # resolve $d until file no longer a symlink
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DIR="$( cd -P "$( dirname "$d" )" && pwd )"
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d="$(readlink "$d")"
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# if $d was rel symlink, resolve relative to path of symlink
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[[ "$d" != /* ]] && ="$DIR/$d"
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done
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echo "$d"
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}
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functionsInit()
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{
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local p="$(resolvePath "${BASH_SOURCE[0]}")"
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MOONFIRE_DIR="$(normalizeDirPath "`dirname "${p}"`/..")"
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}
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catPrefix()
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{
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sed -e "s/^/$2/" < "$1"
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}
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# Read possible user config and then compute all derived environment
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# variables used by the script(s).
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#
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initEnvironmentVars()
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{
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test -z "${MOONFIRE_DIR}" && functionsInit
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if [ -r "${MOONFIRE_DIR}/prep.config" ]; then
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. "${MOONFIRE_DIR}/prep.config"
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fi
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SRC_DIR="$(resolvePath "$MOONFIRE_DIR/src")"
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NVR_USER="${NVR_USER:-moonfire-nvr}"
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NVR_GROUP="${NVR_GROUP:-$NVR_USER}"
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NVR_PORT="${NVR_PORT:-8080}"
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NVR_HOME_BASE="${NVR_HOME_BASE:-/var/lib}"
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NVR_HOME="${NVR_HOME_BASE}/${NVR_USER}"
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DB_NAME="${DB_NAME:-db}"
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DB_DIR="${DB_DIR:-$NVR_HOME}/${DB_NAME}"
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SAMPLE_FILE_DIR="${SAMPLE_FILE_DIR:-sample}"
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SAMPLE_MEDIA_DIR="${SAMPLE_MEDIA_DIR:-$NVR_HOME}"
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SERVICE_NAME="${SERVICE_NAME:-moonfire-nvr}"
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SERVICE_DESC="${SERVICE_DESC:-Moonfire NVR}"
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SERVICE_BIN="${SERVICE_BIN:-/usr/local/bin/moonfire-nvr}"
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LIB_DIR="${UI_DIR:-/usr/local/lib/moonfire-nvr}"
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}
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# Create file with confguration variables that are user changeable.
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# Not all variables are included here, only the likely ones to be
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# modified.
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# If the file already exists, it will not be modified
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#
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makePrepConfig()
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{
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test -z "${MOONFIRE_DIR}" && functionsInit
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if [ ! -f "${MOONFIRE_DIR}/prep.config" ]; then
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cat >"${MOONFIRE_DIR}/prep.config" <<-EOF_CONFIG
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NVR_USER=$NVR_USER
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NVR_PORT=$NVR_PORT
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SAMPLE_FILE_DIR=$SAMPLE_FILE_DIR
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#SAMPLE_MEDIA_DIR=/mount/media
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SERVICE_NAME=$SERVICE_NAME
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SERVICE_DESC="$SERVICE_DESC"
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EOF_CONFIG
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echo "File prep.config newly created. Inspect and change as necessary."
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echo "When done, re-run this setup script. Currently it contains:"
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catPrefix "${MOONFIRE_DIR}/prep.config" " "
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exit 0
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else
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echo "Setting up with variables:"
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catPrefix "${MOONFIRE_DIR}/prep.config" " "
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echo ""
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fi
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}
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# Extract version data from stdin, possibly grepping first against
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# single argument.
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#
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extractVersion()
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{
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local pattern="$1"
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if [ -n "${pattern}" ]; then
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grep "$pattern" | sed -e 's/[^0-9.]*\([0-9. ]*\).*/\1/' | tr -d ' '
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else
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sed -e 's/[^0-9.]*\([0-9. ]*\).*/\1/' | tr -d ' '
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fi
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}
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getAVersion()
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{
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local v=`$1 $2 2>/dev/null | extractVersion`
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if [ "X${v}" = "X" ]; then echo "$3"; else echo "${v}"; fi
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}
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getVersion()
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{
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getAVersion $1 --version $2
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}
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getClassicVersion()
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{
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getAVersion $1 -version $2
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}
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versionAtLeast()
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{
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v1=(${1//./ } 0 0 0); v1=("${v1[@]:0:3}")
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v2=(${2//./ } 0 0 0); v2=("${v2[@]:0:3}")
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for i in 0 1 2; do
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if [ "${v1[$i]}" -gt "${v2[$i]}" ]; then return 0; fi
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if [ "${v1[$i]}" -lt "${v2[$i]}" ]; then return 1; fi
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done
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return 0
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}
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initCargo()
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{
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if [ -r ~/.cargo/env ]; then
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source ~/.cargo/env
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fi
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}
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userExists()
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{
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return $(id -u "$1" >/dev/null 2>&1)
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}
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groupExists()
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{
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return $(id -g "$1" >/dev/null 2>&1)
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}
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moonfire()
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{
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case "$1" in
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start)
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sudo systemctl start "$2"
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;;
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stop)
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sudo systemctl stop "$2"
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;;
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esac
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}
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# Add/update cameras in the database
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#
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# $1: path to cameras.sql file
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# $2: moonfire service name
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# $3: moonfire user name
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# $4: moonfire database path
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#
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addCameras()
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{
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local cpath="${CAMERAS_PATH:-$1}"
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if [ -r "${cpath}" ]; then
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echo 'Add cameras...'; echo
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# Before adding cameras, must stop service
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moonfire stop "${SERVICE_NAME:-$2}" >/dev/null 2>&1
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sudo -u ${NVR_USER:-$3} -H sqlite3 "${DB_PATH:-$4}" < "${cpath}"
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moonfire start "${SERVICE_NAME:-$2}" >/dev/null 2>&1
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fi
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}
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echo_stderr()
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{
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echo "$@" 1>&2
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}
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echo_warn()
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{
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echo_stderr "WARNING: $@"
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echo_stderr
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}
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echo_fatal()
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{
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echo_stderr "ERROR: $@"
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echo_stderr
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exit 1;
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}
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