Added platyvenv script to manage platypush instances from python virtual environments
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Fabio Manganiello
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2 changed files with 237 additions and 0 deletions
236
bin/platyvenv
Executable file
236
bin/platyvenv
Executable file
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#!/bin/bash
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##############################################################################
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# This script allows you to easily manage Platypush instances through Python #
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# virtual environment. You can build environments from a config.yaml file #
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# and automatically managed the required dependencies, as well as start, #
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# stop and remove them #
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# #
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# @author: Fabio Manganiello <blacklight86@gmail.com> #
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# @licence: MIT #
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##############################################################################
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workdir=$HOME/.local/share/platypush/venv
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function build {
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cfgfile=
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while getopts ':c:' opt; do
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case $opt in
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c)
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cfgfile=$OPTARG;;
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\?)
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echo "Invalid option: -$OPTARG" >&2
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exit 1;;
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:)
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echo "Option -$OPTARG requires the path to a Platypush configuration file" >&2
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exit 1;;
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esac
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done
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if [ -z "$cfgfile" ]; then
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echo "Usage: $0 build -c <path-to-platypush-config-file>" >&2
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exit 1
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fi
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echo "Parsing configuration file"
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deps=()
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while read -r line; do
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echo $line | egrep '``pip install .+?``' > /dev/null 2>&1
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if (( $? != 0 )); then
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continue
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fi
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dep=$(echo $line | sed -r -e 's/.*``pip install (.+?)``.*/\1/')
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deps+=("$dep")
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done <<< $(python <<EOF
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from platypush.config import Config
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from platypush.context import get_plugin, get_backend, register_backends
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Config.init('$cfgfile')
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register_backends()
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backend_config = Config.get_backends()
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for name in Config.get_backends().keys():
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backend = get_backend(name)
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print(backend.__doc__)
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for name in Config.get_plugins().keys():
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try:
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plugin = get_plugin(name)
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print(plugin.__doc__)
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except:
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pass
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EOF
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)
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device_id=$(python <<EOF
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from platypush.config import Config
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Config.init('$cfgfile')
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print(Config.get('device_id'))
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EOF
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)
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envdir=$workdir/$device_id
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etcdir=$envdir/etc/platypush
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echo "Preparing virtual environment for device $device_id"
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mkdir -p $envdir
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mkdir -p $etcdir
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cp $cfgfile $etcdir/config.yaml
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cfgfile=$etcdir/config.yaml
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python3 -m venv $envdir
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cd $envdir
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source $envdir/bin/activate
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echo "Installing required dependencies"
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for ((i=0; $i < ${#deps[@]}; i++)); do
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echo ${deps[$i]}
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done | sort -u | while read dep; do
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pip install $dep
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done
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pip install --upgrade git+https://github.com/BlackLight/platypush.git
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echo "Platypush virtual environment prepared under $envdir"
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}
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function start {
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if [ -z "$1" ]; then
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echo "Usage: $0 start <env-name>" >&2
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exit 1
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fi
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env=$1
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envdir=$workdir/$env
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logsdir=$envdir/var/log/platypush
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rundir=$envdir/var/run
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pidfile=$rundir/platypush.pid
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cfgfile=$envdir/etc/platypush/config.yaml
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if [ ! -d "$envdir" ]; then
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echo "No such directory: $envdir" >&2
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exit 1
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fi
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mkdir -p $logsdir
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mkdir -p $rundir
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if [[ -f "$pidfile" ]]; then
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pid=`cat "$pidfile"`
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if ps -p $pid | grep platypush; then
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echo "Another instance (PID $pid) is running, please stop that instance first"
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exit 1
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fi
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echo "A PID file was found but the process doesn't seem to be running, starting anyway"
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rm -f "$pidfile"
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fi
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python3 -m venv $envdir
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cd $envdir
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source bin/activate
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bin/platypush -c "$cfgfile" -P "$pidfile" > $logsdir/stdout.log 2> $logsdir/stderr.log &
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start_time=`date +'%s'`
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timeout=30
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while :; do
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[[ -f "$pidfile" ]] && break
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now=`date +'%s'`
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let elapsed=$now-$start_time
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if (( $elapsed >= $timeout )); then
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echo "Platypush instance '$env' didn't start within $timeout seconds" >&2
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exit 1
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fi
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echo -n '.'
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sleep 1
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done
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pid=`cat "$pidfile"`
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echo
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echo "Platypush environment $env started with PID $pid, logs dir: $logsdir"
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}
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function stop {
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if [ -z "$1" ]; then
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echo "Usage: $0 stop <env-name>" >&2
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exit 1
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fi
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env=$1
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envdir=$workdir/$env
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rundir=$envdir/var/run
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pidfile=$rundir/platypush.pid
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if [ ! -d "$envdir" ]; then
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echo "No such directory: $envdir" >&2
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exit 1
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fi
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if [[ ! -f "$pidfile" ]]; then
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echo "No pidfile found for instance "$env""
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exit 1
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fi
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pid=`cat "$pidfile"`
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pids="$pid `ps --no-headers -o pid= --ppid $pid`"
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kill -9 $pids
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rm -f "$pidfile"
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echo "Instance '$env' with PID $pid stopped"
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}
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function rme {
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if [ -z "$1" ]; then
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echo "Usage: $0 rm <env-name>" >&2
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exit 1
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fi
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envdir=$workdir/$1
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rundir=$envdir/var/run
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pidfile=$rundir/platypush.pid
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if [ ! -d "$envdir" ]; then
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echo "No such directory: $envdir" >&2
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exit 1
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fi
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if [[ -f "$pidfile" ]]; then
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if ps -p `cat "$pidfile"` | grep platypush; then
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echo "Another instance (PID $pidfile) is running, please stop that instance first"
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exit 1
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fi
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echo "A PID file was found but the process doesn't seem to be running, removing anyway"
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fi
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rm -rf "$envdir"
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echo "$envdir removed"
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}
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function usage {
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echo "Usage: $0 <build|start|stop|rm> [options]" >&2
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exit 1
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}
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if (( $# < 1 )); then
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usage
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fi
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action=$1
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shift
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mkdir -p $workdir
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case $action in
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'build') build $*;;
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'start') start $*;;
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'stop') stop $*;;
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'rm') rme $*;;
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*) usage;;
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esac
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1
setup.py
1
setup.py
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@ -49,6 +49,7 @@ setup(
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'platydock=platypush.platydock:main',
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'platydock=platypush.platydock:main',
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],
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],
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},
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},
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scripts = ['bin/platyvenv'],
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# data_files = [
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# data_files = [
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# ('/etc/platypush', ['platypush/config.example.yaml'])
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# ('/etc/platypush', ['platypush/config.example.yaml'])
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# ],
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# ],
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