Moved to manifest files for describing plugins and backends and their dependencies

MANIFEST.in

@@ -1,2 +1,3 @@
 recursive-include platypush/backend/http/webapp/dist *
 include platypush/plugins/http/webpage/mercury-parser.js
+global-include manifest.yaml

bin/platyvenv

@@ -6,12 +6,12 @@
 # and automatically managed the required dependencies, as well as start,     #
 # stop and remove them                                                       #
 #                                                                            #
-# @author: Fabio Manganiello <blacklight86@gmail.com>                        #
+# @author: Fabio Manganiello <fabio@platypush.tech>                          #
 # @licence: MIT                                                              #
 ##############################################################################
 
 
-workdir=$HOME/.local/share/platypush/venv
+workdir="$HOME/.local/share/platypush/venv"
 
 function build {
     cfgfile=
@@ -35,88 +35,74 @@ function build {
     fi
 
     echo "Parsing configuration file"
-    deps=()
+    pip_cmd=
+    pkg_cmd=
     includes=()
+    cmd_exec=()
 
     while read -r line; do
-        echo ${line} | egrep '``pip install .+?``' > /dev/null 2>&1
-        if (( $? != 0 )); then
-            continue
+      if echo "$line" | grep -E "^pip:\s*"; then
+        pip_cmd="$(echo "$line" | sed -r -e 's/^pip:\s*(.*)'/\\1/)"
+      elif echo "$line" | grep -E "^packages:\s*"; then
+        pkg_cmd="$(echo "$line" | sed -r -e 's/^packages:\s*(.*)'/\\1/)"
+      elif echo "$line" | grep -E "^exec:\s*"; then
+        cmd_exec+=("$(echo "$line" | sed -r -e 's/^exec:\s*(.*)'/\\1/)")
+      elif echo "$line" | grep -E "^include:\s*"; then
+        includes+=("$(echo "$line" | sed -r -e 's/^include:\s*(.*)'/\\1/)")
+      elif echo "$line" | grep -E "^device_id:\s*"; then
+        device_id="$(echo "$line" | sed -r -e 's/^device_id:\s*(.*)'/\\1/)"
       fi
-
-        dep=$(echo ${line} | sed -r -e 's/.*``pip install (.+?)``.*/\1/')
-        deps+=("$dep")
-    done <<< $(python <<EOF
+    done <<< "$(python <<EOF
 from platypush.config import Config
-from platypush.context import get_plugin, get_backend, register_backends
+from platypush.utils.manifest import get_install_commands_from_conf
 
-Config.init('`realpath ${cfgfile}`')
-register_backends()
-backend_config = Config.get_backends()
+deps = get_install_commands_from_conf('$(realpath "${cfgfile}")')
+print(f'device_id: {Config.get("device_id")}')
 
-for name in Config.get_backends().keys():
-    backend = get_backend(name)
-    print(backend.__doc__)
+if deps.get('pip'):
+    print(f'pip: {deps["pip"]}')
 
-for name in Config.get_plugins().keys():
-    try:
-        plugin = get_plugin(name)
-        print(plugin.__doc__)
-    except:
-        pass
-EOF
-)
+if deps.get('packages'):
+    print(f'packages: {deps["packages"]}')
 
-    while read -r include; do
-        includes+=(${include})
-    done <<< $(python <<EOF
-from platypush.config import Config
-from platypush.context import get_plugin, get_backend, register_backends
-
-Config.init('`realpath ${cfgfile}`')
+for cmd in deps.get('exec', []):
+    print(f'exec: {cmd}')
 
 for include in Config._included_files:
-    print(include)
+    print(f'include: {include}')
 EOF
-)
+)"
 
-    device_id=$(python <<EOF
-from platypush.config import Config
-
-Config.init('`realpath ${cfgfile}`')
-print(Config.get('device_id'))
-EOF
-)
-
-    envdir=${workdir}/${device_id}
-    etcdir=${envdir}/etc/platypush
+    envdir="${workdir}/${device_id}"
+    etcdir="${envdir}/etc/platypush"
 
     echo "Preparing virtual environment for device $device_id"
     mkdir -p "$envdir"
     mkdir -p "$etcdir"
-    srcdir=`dirname "$cfgfile"`
+    srcdir=$(dirname "$cfgfile")
 
-    for ((i=0; $i < ${#includes[@]}; i++)); do
-        incdir=`dirname "${includes[$i]}"`
-        incdir=`realpath --relative-to="$srcdir" "$incdir"`
+    for ((i=0; i < ${#includes[@]}; i++)); do
+        incdir=$(dirname "${includes[$i]}")
+        incdir=$(realpath --relative-to="$srcdir" "$incdir")
         destdir="$etcdir/$incdir"
         mkdir -p "$destdir"
         cp "${includes[$i]}" "$destdir"
     done
 
     cp "$cfgfile" "$etcdir/config.yaml"
-    cfgfile=${etcdir}/config.yaml
+    cfgfile="${etcdir}/config.yaml"
 
-    python3 -m venv ${envdir}
-    cd ${envdir}
-    source ${envdir}/bin/activate
+    python3 -m venv "${envdir}"
+    cd "${envdir}" || exit 1
+    source "${envdir}/bin/activate"
 
     echo "Installing required dependencies"
+    # shellcheck disable=SC2086
+    [ -n "${pkg_cmd}" ] && sudo ${pkg_cmd}
+    [ -n "${pip_cmd}" ] && ${pip_cmd}
 
-    for ((i=0; $i < ${#deps[@]}; i++)); do
-        echo ${deps[$i]}
-    done | sort -u | while read dep; do
-        pip install ${dep}
+    for ((i=0; i < ${#cmd_exec[@]}; i++)); do
+        ${cmd_exec[$i]}
     done
 
     pip install --upgrade git+https://git.platypush.tech/platypush/platypush.git
@@ -130,44 +116,43 @@ function start {
     fi
 
     env=$1
-    envdir=${workdir}/${env}
-    logsdir=${envdir}/var/log/platypush
-    rundir=${envdir}/var/run
-    pidfile=${rundir}/platypush.pid
-    cfgfile=${envdir}/etc/platypush/config.yaml
+    envdir="${workdir}/${env}"
+    logsdir="${envdir}/var/log/platypush"
+    rundir="${envdir}/var/run"
+    pidfile="${rundir}/platypush.pid"
+    cfgfile="${envdir}/etc/platypush/config.yaml"
 
     if [[ ! -d "$envdir" ]]; then
         echo "No such directory: $envdir" >&2
         exit 1
     fi
 
-    mkdir -p ${logsdir}
-    mkdir -p ${rundir}
+    mkdir -p "${logsdir}"
+    mkdir -p "${rundir}"
 
     if [[ -f "$pidfile" ]]; then
-        pid=`cat "$pidfile"`
-        if ps -p ${pid} | grep platypush; then
-            echo "Another instance (PID $pid) is running, please stop that instance first"
+        if pgrep -F "${pidfile}"; then
+            echo "Another instance (PID $(cat "${pidfile}")) is running, please stop that instance first"
             exit 1
         fi
 
-        echo "A PID file was found but the process doesn't seem to be running, starting anyway"
+        echo "A PID file was found but the process does not seem to be running, starting anyway"
         rm -f "$pidfile"
     fi
 
-    python3 -m venv ${envdir}
-    cd ${envdir}
+    python3 -m venv "${envdir}"
+    cd "${envdir}" || exit 1
     source bin/activate
-    bin/platypush -c "$cfgfile" -P "$pidfile" > ${logsdir}/stdout.log 2> ${logsdir}/stderr.log &
-    start_time=`date +'%s'`
+    bin/platypush -c "$cfgfile" -P "$pidfile" > "${logsdir}/stdout.log" 2> "${logsdir}/stderr.log" &
+    start_time=$(date +'%s')
     timeout=30
 
     while :; do
         [[ -f "$pidfile" ]] && break
-        now=`date +'%s'`
-        let elapsed=$now-$start_time
-        if (( ${elapsed} >= ${timeout} )); then
-            echo "Platypush instance '$env' didn't start within $timeout seconds" >&2
+        now=$(date +'%s')
+        elapsed=$(( now-start_time ))
+        if (( elapsed >= timeout )); then
+            echo "Platypush instance '$env' did not start within $timeout seconds" >&2
             exit 1
         fi
 
@@ -175,7 +160,7 @@ function start {
         sleep 1
     done
 
-    pid=`cat "$pidfile"`
+    pid=$(cat "$pidfile")
     echo
     echo "Platypush environment $env started with PID $pid, logs dir: $logsdir"
 }
@@ -187,9 +172,9 @@ function stop {
     fi
 
     env=$1
-    envdir=${workdir}/${env}
-    rundir=${envdir}/var/run
-    pidfile=${rundir}/platypush.pid
+    envdir="${workdir}/${env}"
+    rundir="${envdir}/var/run"
+    pidfile="${rundir}/platypush.pid"
 
     if [[ ! -d "$envdir" ]]; then
         echo "No such directory: $envdir" >&2
@@ -197,12 +182,13 @@ function stop {
     fi
 
     if [[ ! -f "$pidfile" ]]; then
-        echo "No pidfile found for instance "${env}""
+        echo "No pidfile found for instance \"${env}\""
         exit 1
     fi
 
-    pid=`cat "$pidfile"`
-    pids="$pid `ps --no-headers -o pid= --ppid $pid`"
+    pid=$(cat "$pidfile")
+    pids="$pid $(ps --no-headers -o pid= --ppid "$pid")"
+    # shellcheck disable=SC2086
     kill -9 ${pids}
     rm -f "$pidfile"
     echo "Instance '$env' with PID $pid stopped"
@@ -214,9 +200,9 @@ function rme {
         exit 1
     fi
 
-    envdir=${workdir}/$1
-    rundir=${envdir}/var/run
-    pidfile=${rundir}/platypush.pid
+    envdir="${workdir}/$1"
+    rundir="${envdir}/var/run"
+    pidfile="${rundir}/platypush.pid"
 
     if [[ ! -d "$envdir" ]]; then
         echo "No such directory: $envdir" >&2
@@ -224,14 +210,18 @@ function rme {
     fi
 
     if [[ -f "$pidfile" ]]; then
-        if ps -p `cat "$pidfile"` | grep platypush; then
-            echo "Another instance (PID $pidfile) is running, please stop that instance first"
+        if pgrep -F "${pidfile}"; then
+            echo "Another instance (PID $(cat "$pidfile")) is running, please stop that instance first"
             exit 1
         fi
 
-        echo "A PID file was found but the process doesn't seem to be running, removing anyway"
+        echo "A PID file was found but the process does not seem to be running, removing anyway"
     fi
 
+    echo "WARNING: This operation will permanently remove the Platypush environment $1"
+    echo -n "Are you sure you want to continue? (y/N) "
+    IFS= read -r answer
+    echo "$answer" | grep -E '^[yY]' >/dev/null || exit 0
     rm -rf "$envdir"
     echo "$envdir removed"
 }
@@ -247,13 +237,13 @@ fi
 
 action=$1
 shift
-mkdir -p ${workdir}
+mkdir -p "${workdir}"
 
+# shellcheck disable=SC2048,SC2086
 case ${action} in
-    'build') build;;
+    'build') build $*;;
     'start') start $*;;
     'stop') stop $*;;
     'rm') rme $*;;
     *) usage;;
 esac
-

docs/source/backends.rst

@@ -8,10 +8,8 @@ Backends
 
     platypush/backend/adafruit.io.rst
     platypush/backend/alarm.rst
-    platypush/backend/assistant.rst
     platypush/backend/assistant.google.rst
     platypush/backend/assistant.snowboy.rst
-    platypush/backend/bluetooth.rst
     platypush/backend/bluetooth.fileserver.rst
     platypush/backend/bluetooth.pushserver.rst
     platypush/backend/bluetooth.scanner.rst
@@ -52,7 +50,6 @@ Backends
     platypush/backend/pushbullet.rst
     platypush/backend/redis.rst
     platypush/backend/scard.rst
-    platypush/backend/sensor.rst
     platypush/backend/sensor.accelerometer.rst
     platypush/backend/sensor.arduino.rst
     platypush/backend/sensor.battery.rst
@@ -67,7 +64,6 @@ Backends
     platypush/backend/sensor.mcp3008.rst
     platypush/backend/sensor.motion.pwm3901.rst
     platypush/backend/sensor.serial.rst
-    platypush/backend/stt.rst
     platypush/backend/stt.deepspeech.rst
     platypush/backend/stt.picovoice.hotword.rst
     platypush/backend/stt.picovoice.speech.rst
@@ -75,7 +71,6 @@ Backends
     platypush/backend/todoist.rst
     platypush/backend/travisci.rst
     platypush/backend/trello.rst
-    platypush/backend/weather.rst
     platypush/backend/weather.buienradar.rst
     platypush/backend/weather.darksky.rst
     platypush/backend/weather.openweathermap.rst

docs/source/conf.py

@@ -238,7 +238,7 @@ autodoc_mock_imports = ['googlesamples.assistant.grpc.audio_helpers',
                         'envirophat',
                         'gps',
                         'picamera',
-                        'pwm3901',
+                        'pmw3901',
                         'PIL',
                         'croniter',
                         'pyaudio',

docs/source/plugins.rst

@@ -9,7 +9,6 @@ Plugins
     platypush/plugins/adafruit.io.rst
     platypush/plugins/alarm.rst
     platypush/plugins/arduino.rst
-    platypush/plugins/assistant.rst
     platypush/plugins/assistant.echo.rst
     platypush/plugins/assistant.google.rst
     platypush/plugins/assistant.google.pushtotalk.rst
@@ -18,14 +17,12 @@ Plugins
     platypush/plugins/bluetooth.ble.rst
     platypush/plugins/calendar.rst
     platypush/plugins/calendar.ical.rst
-    platypush/plugins/camera.rst
     platypush/plugins/camera.android.ipcam.rst
     platypush/plugins/camera.cv.rst
     platypush/plugins/camera.ffmpeg.rst
     platypush/plugins/camera.gstreamer.rst
     platypush/plugins/camera.ir.mlx90640.rst
     platypush/plugins/camera.pi.rst
-    platypush/plugins/chat.rst
     platypush/plugins/chat.telegram.rst
     platypush/plugins/clipboard.rst
     platypush/plugins/config.rst
@@ -38,7 +35,6 @@ Plugins
     platypush/plugins/ffmpeg.rst
     platypush/plugins/file.rst
     platypush/plugins/foursquare.rst
-    platypush/plugins/google.rst
     platypush/plugins/google.calendar.rst
     platypush/plugins/google.drive.rst
     platypush/plugins/google.fit.rst
@@ -48,7 +44,6 @@ Plugins
     platypush/plugins/google.translate.rst
     platypush/plugins/google.youtube.rst
     platypush/plugins/gpio.rst
-    platypush/plugins/gpio.sensor.rst
     platypush/plugins/gpio.sensor.accelerometer.rst
     platypush/plugins/gpio.sensor.bme280.rst
     platypush/plugins/gpio.sensor.dht.rst
@@ -69,18 +64,14 @@ Plugins
     platypush/plugins/inspect.rst
     platypush/plugins/kafka.rst
     platypush/plugins/lastfm.rst
-    platypush/plugins/lcd.rst
     platypush/plugins/lcd.gpio.rst
     platypush/plugins/lcd.i2c.rst
-    platypush/plugins/light.rst
     platypush/plugins/light.hue.rst
     platypush/plugins/linode.rst
     platypush/plugins/logger.rst
     platypush/plugins/luma.oled.rst
-    platypush/plugins/mail.rst
     platypush/plugins/mail.imap.rst
     platypush/plugins/mail.smtp.rst
-    platypush/plugins/media.rst
     platypush/plugins/media.chromecast.rst
     platypush/plugins/media.gstreamer.rst
     platypush/plugins/media.kodi.rst
@@ -95,7 +86,6 @@ Plugins
     platypush/plugins/ml.cv.rst
     platypush/plugins/mobile.join.rst
     platypush/plugins/mqtt.rst
-    platypush/plugins/music.rst
     platypush/plugins/music.mpd.rst
     platypush/plugins/music.snapcast.rst
     platypush/plugins/music.spotify.rst
@@ -110,19 +100,16 @@ Plugins
     platypush/plugins/qrcode.rst
     platypush/plugins/redis.rst
     platypush/plugins/rtorrent.rst
-    platypush/plugins/sensor.rst
     platypush/plugins/serial.rst
     platypush/plugins/shell.rst
     platypush/plugins/slack.rst
     platypush/plugins/smartthings.rst
     platypush/plugins/sound.rst
     platypush/plugins/ssh.rst
-    platypush/plugins/stt.rst
     platypush/plugins/stt.deepspeech.rst
     platypush/plugins/stt.picovoice.hotword.rst
     platypush/plugins/stt.picovoice.speech.rst
     platypush/plugins/sun.rst
-    platypush/plugins/switch.rst
     platypush/plugins/switch.tplink.rst
     platypush/plugins/switch.wemo.rst
     platypush/plugins/switchbot.rst
@@ -142,7 +129,6 @@ Plugins
     platypush/plugins/user.rst
     platypush/plugins/utils.rst
     platypush/plugins/variable.rst
-    platypush/plugins/weather.rst
     platypush/plugins/weather.buienradar.rst
     platypush/plugins/weather.darksky.rst
     platypush/plugins/weather.openweathermap.rst
@@ -151,5 +137,4 @@ Plugins
     platypush/plugins/zeroconf.rst
     platypush/plugins/zigbee.mqtt.rst
     platypush/plugins/zwave.rst
-    platypush/plugins/zwave._base.rst
     platypush/plugins/zwave.mqtt.rst

generate_missing_docs.py

@@ -1,14 +1,27 @@
 import os
 
+from platypush.backend import Backend
 from platypush.context import get_plugin
+from platypush.plugins import Plugin
+from platypush.utils.manifest import get_manifests
 
 
 def get_all_plugins():
-    return get_plugin('inspect').get_all_plugins().output
+    manifests = {mf.component_name for mf in get_manifests(Plugin)}
+    return {
+        plugin_name: plugin_info
+        for plugin_name, plugin_info in get_plugin('inspect').get_all_plugins().output.items()
+        if plugin_name in manifests
+    }
 
 
 def get_all_backends():
-    return get_plugin('inspect').get_all_backends().output
+    manifests = {mf.component_name for mf in get_manifests(Backend)}
+    return {
+        backend_name: backend_info
+        for backend_name, backend_info in get_plugin('inspect').get_all_backends().output.items()
+        if backend_name in manifests
+    }
 
 
 def get_all_events():

platypush/backend/__init__.py

@@ -12,6 +12,7 @@ from threading import Thread, Event as ThreadEvent, get_ident
 from typing import Optional, Dict
 
 from platypush.bus import Bus
+from platypush.common import ExtensionWithManifest
 from platypush.config import Config
 from platypush.context import get_backend
 from platypush.message.event.zeroconf import ZeroconfServiceAddedEvent, ZeroconfServiceRemovedEvent
@@ -26,7 +27,7 @@ from platypush.message.request import Request
 from platypush.message.response import Response
 
 
-class Backend(Thread, EventGenerator):
+class Backend(Thread, EventGenerator, ExtensionWithManifest):
     """
     Parent class for backends.
 
@@ -53,6 +54,7 @@ class Backend(Thread, EventGenerator):
 
         self._thread_name = self.__class__.__name__
         EventGenerator.__init__(self)
+        ExtensionWithManifest.__init__(self)
         Thread.__init__(self, name=self._thread_name, daemon=True)
 
         # If no bus is specified, create an internal queue where

platypush/backend/adafruit/io/__init__.py

@@ -1,3 +1,5 @@
+from typing import Optional
+
 from platypush.backend import Backend
 from platypush.context import get_plugin
 from platypush.message.event.adafruit import ConnectedEvent, DisconnectedEvent, \
@@ -30,8 +32,9 @@ class AdafruitIoBackend(Backend):
         """
 
         super().__init__(*args, **kwargs)
+        from Adafruit_IO import MQTTClient
         self.feeds = feeds
-        self._client = None
+        self._client: Optional[MQTTClient] = None
 
     def _init_client(self):
         if self._client:
@@ -57,12 +60,12 @@ class AdafruitIoBackend(Backend):
         return _handler
 
     def on_disconnect(self):
-        def _handler(client):
+        def _handler(*_, **__):
             self.bus.post(DisconnectedEvent())
 
         return _handler
 
-    def on_message(self, msg):
+    def on_message(self, *_, **__):
         # noinspection PyUnusedLocal
         def _handler(client, feed, data):
             try:
@@ -83,7 +86,9 @@ class AdafruitIoBackend(Backend):
         while not self.should_stop():
             try:
                 self._init_client()
+                # noinspection PyUnresolvedReferences
                 self._client.connect()
+                # noinspection PyUnresolvedReferences
                 self._client.loop_blocking()
             except Exception as e:
                 self.logger.exception(e)

platypush/backend/adafruit/io/manifest.yaml

@@ -0,0 +1,12 @@
+manifest:
+  events:
+    platypush.message.event.adafruit.ConnectedEvent: when thebackend connects to the
+      Adafruit queue
+    platypush.message.event.adafruit.DisconnectedEvent: when thebackend disconnects
+      from the Adafruit queue
+    platypush.message.event.adafruit.FeedUpdateEvent: when anupdate event is received
+      on a monitored feed
+  install:
+    pip: []
+  package: platypush.backend.adafruit.io
+  type: backend

platypush/backend/alarm/manifest.yaml

@@ -0,0 +1,10 @@
+manifest:
+  events:
+    platypush.message.event.alarm.AlarmDismissedEvent: when an alarm is dismissed.
+    platypush.message.event.alarm.AlarmSnoozedEvent: when an alarm is snoozed.
+    platypush.message.event.alarm.AlarmStartedEvent: when an alarm starts.
+    platypush.message.event.alarm.AlarmTimeoutEvent: when an alarm times out.
+  install:
+    pip: []
+  package: platypush.backend.alarm
+  type: backend

platypush/backend/assistant/__init__.py

@@ -1,3 +1,4 @@
+from abc import ABC
 import threading
 from typing import Optional, Dict, Any, Tuple
 

platypush/backend/assistant/google/manifest.yaml

@@ -0,0 +1,26 @@
+manifest:
+  events:
+    platypush.message.event.assistant.AlarmEndEvent: when an alarm ends
+    platypush.message.event.assistant.AlarmStartedEvent: when an alarm starts
+    platypush.message.event.assistant.ConversationEndEvent: when a new conversation
+      ends
+    platypush.message.event.assistant.ConversationStartEvent: when a new conversation
+      starts
+    platypush.message.event.assistant.ConversationTimeoutEvent: when a conversation
+      times out
+    platypush.message.event.assistant.MicMutedEvent: when the microphone is muted.
+    platypush.message.event.assistant.MicUnmutedEvent: when the microphone is un-muted.
+    platypush.message.event.assistant.NoResponse: when a conversation returned no
+      response
+    platypush.message.event.assistant.ResponseEvent: when the assistant is speaking
+      a response
+    platypush.message.event.assistant.SpeechRecognizedEvent: when a new voice command
+      is recognized
+    platypush.message.event.assistant.TimerEndEvent: when a timer ends
+    platypush.message.event.assistant.TimerStartedEvent: when a timer starts
+  install:
+    pip:
+    - google-assistant-library
+    - google-assistant-sdk[samples]
+  package: platypush.backend.assistant.google
+  type: backend

platypush/backend/assistant/snowboy/manifest.yaml

@@ -0,0 +1,9 @@
+manifest:
+  events:
+    platypush.message.event.assistant.HotwordDetectedEvent: whenever the hotword has
+      been detected
+  install:
+    pip:
+    - snowboy
+  package: platypush.backend.assistant.snowboy
+  type: backend

platypush/backend/bluetooth/__init__.py

@@ -83,7 +83,7 @@ class BluetoothBackend(Backend, Server):
             self.connect(connection, request)
             self.bus.post(BluetoothDeviceConnectedEvent(address=address[0], port=address[1]))
         elif isinstance(request, requests.Disconnect):
-            self.disconnect(connection)
+            self.disconnect(connection, request)
             self.bus.post(BluetoothDeviceDisconnectedEvent(address=address[0], port=address[1]))
         elif isinstance(request, requests.Put):
             self.bus.post(BluetoothFilePutRequestEvent(address=address[0], port=address[1]))

platypush/backend/bluetooth/fileserver/manifest.yaml

@@ -0,0 +1,8 @@
+manifest:
+  events: {}
+  install:
+    pip:
+    - pybluez
+    - pyobex
+  package: platypush.backend.bluetooth.fileserver
+  type: backend

platypush/backend/bluetooth/pushserver/manifest.yaml

@@ -0,0 +1,8 @@
+manifest:
+  events: {}
+  install:
+    pip:
+    - pybluez
+    - pyobex
+  package: platypush.backend.bluetooth.pushserver
+  type: backend

platypush/backend/bluetooth/scanner/ble/manifest.yaml

@@ -0,0 +1,10 @@
+manifest:
+  events:
+    platypush.message.event.bluetooth.BluetoothDeviceFoundEvent: when a new bluetooth
+      device is found.
+    platypush.message.event.bluetooth.BluetoothDeviceLostEvent: when a bluetooth device
+      is lost.
+  install:
+    pip: []
+  package: platypush.backend.bluetooth.scanner.ble
+  type: backend

platypush/backend/bluetooth/scanner/manifest.yaml

@@ -0,0 +1,10 @@
+manifest:
+  events:
+    platypush.message.event.bluetooth.BluetoothDeviceFoundEvent: when a new bluetooth
+      device is found.
+    platypush.message.event.bluetooth.BluetoothDeviceLostEvent: when a bluetooth device
+      is lost.
+  install:
+    pip: []
+  package: platypush.backend.bluetooth.scanner
+  type: backend

platypush/backend/button/flic/__init__.py

@@ -1,6 +1,3 @@
-import importlib
-
-from enum import Enum
 from threading import Timer
 from time import time
 
@@ -17,11 +14,14 @@ class ButtonFlicBackend(Backend):
 
     Triggers:
 
-        * :class:`platypush.message.event.button.flic.FlicButtonEvent` when a button is pressed. The event will also contain the press sequence (e.g. ``["ShortPressEvent", "LongPressEvent", "ShortPressEvent"]``)
+        * :class:`platypush.message.event.button.flic.FlicButtonEvent` when a button is pressed.
+            The event will also contain the press sequence
+            (e.g. ``["ShortPressEvent", "LongPressEvent", "ShortPressEvent"]``)
 
     Requires:
 
         * **fliclib** (https://github.com/50ButtonsEach/fliclib-linux-hci). For the backend to work properly you need to have the ``flicd`` daemon from the fliclib running, and you have to first pair the buttons with your device using any of the scanners provided by the library.
+
     """
 
     _long_press_timeout = 0.3
@@ -87,6 +87,7 @@ class ButtonFlicBackend(Backend):
         return _f
 
     def _on_event(self):
+        # noinspection PyUnusedLocal
         def _f(bd_addr, channel, click_type, was_queued, time_diff):
             if was_queued:
                 return

platypush/backend/button/flic/fliclib/aioflic.py

@@ -15,6 +15,7 @@ from enum import Enum
 from collections import namedtuple
 import struct
 import itertools
+import threading
 
 
 class CreateConnectionChannelError(Enum):

platypush/backend/button/flic/manifest.yaml

@@ -0,0 +1,9 @@
+manifest:
+  events:
+    platypush.message.event.button.flic.FlicButtonEvent: when a button is pressed.The
+      event will also contain the press sequence(e.g. ``["ShortPressEvent", "LongPressEvent",
+      "ShortPressEvent"]``)
+  install:
+    pip: []
+  package: platypush.backend.button.flic
+  type: backend

platypush/backend/camera/pi/__init__.py

@@ -18,7 +18,6 @@ class CameraPiBackend(Backend):
     Requires:
 
         * **picamera** (``pip install picamera``)
-        * **redis** (``pip install redis``) for inter-process communication with the camera process
 
     This backend is **DEPRECATED**. Use the plugin :class:`platypush.plugins.camera.pi.CameraPiPlugin` instead to run
     Pi camera actions. If you want to start streaming the camera on application start then simply create an event hook

platypush/backend/camera/pi/manifest.yaml

@@ -0,0 +1,7 @@
+manifest:
+  events: {}
+  install:
+    pip:
+    - picamera
+  package: platypush.backend.camera.pi
+  type: backend

platypush/backend/chat/telegram/manifest.yaml

@@ -0,0 +1,19 @@
+manifest:
+  events:
+    platypush.message.event.chat.telegram.CommandMessageEvent: when a command message
+      is received.
+    platypush.message.event.chat.telegram.ContactMessageEvent: when a contact is received.
+    platypush.message.event.chat.telegram.DocumentMessageEvent: when a document is
+      received.
+    platypush.message.event.chat.telegram.GroupCreatedEvent: when the bot is invited
+      to a new group.
+    platypush.message.event.chat.telegram.LocationMessageEvent: when a location is
+      received.
+    platypush.message.event.chat.telegram.PhotoMessageEvent: when a photo is received.
+    platypush.message.event.chat.telegram.TextMessageEvent: when a text message is
+      received.
+    platypush.message.event.chat.telegram.VideoMessageEvent: when a video is received.
+  install:
+    pip: []
+  package: platypush.backend.chat.telegram
+  type: backend

platypush/backend/clipboard/manifest.yaml

@@ -0,0 +1,8 @@
+manifest:
+  events:
+    platypush.message.event.clipboard.ClipboardEvent: on clipboard update.
+  install:
+    pip:
+    - pyperclip
+  package: platypush.backend.clipboard
+  type: backend

platypush/backend/covid19/manifest.yaml

@@ -0,0 +1,7 @@
+manifest:
+  events:
+    platypush.message.event.covid19.Covid19UpdateEvent: when new data is available.
+  install:
+    pip: []
+  package: platypush.backend.covid19
+  type: backend

platypush/backend/dbus/manifest.yaml

@@ -0,0 +1,7 @@
+manifest:
+  events: {}
+  install:
+    pip:
+    - dbus-python
+  package: platypush.backend.dbus
+  type: backend

platypush/backend/file/monitor/manifest.yaml

@@ -0,0 +1,10 @@
+manifest:
+  events:
+    platypush.message.event.file.FileSystemCreateEvent: if a resource is created.
+    platypush.message.event.file.FileSystemDeleteEvent: if a resource is removed.
+    platypush.message.event.file.FileSystemModifyEvent: if a resource is modified.
+  install:
+    pip:
+    - watchdog
+  package: platypush.backend.file.monitor
+  type: backend

platypush/backend/foursquare/manifest.yaml

@@ -0,0 +1,8 @@
+manifest:
+  events:
+    platypush.message.event.foursquare.FoursquareCheckinEvent: when a new check-in
+      occurs.
+  install:
+    pip: []
+  package: platypush.backend.foursquare
+  type: backend

platypush/backend/github/manifest.yaml

@@ -0,0 +1,32 @@
+manifest:
+  events:
+    platypush.message.event.github.GithubCommitCommentEvent: when a new commit comment
+      is created.
+    platypush.message.event.github.GithubCreateEvent: when a tag or branch is created.
+    platypush.message.event.github.GithubDeleteEvent: when a tag or branch is deleted.
+    platypush.message.event.github.GithubEvent: for any event that doesn't fall in
+      the above categories(``event_type`` will be set accordingly).
+    platypush.message.event.github.GithubForkEvent: when a user forks a repository.
+    platypush.message.event.github.GithubIssueCommentEvent: when new activity happens
+      on an issue comment.
+    platypush.message.event.github.GithubIssueEvent: when new repository issue activity
+      happens.
+    platypush.message.event.github.GithubMemberEvent: when new repository collaborators
+      activity happens.
+    platypush.message.event.github.GithubPublicEvent: when a repository goes public.
+    platypush.message.event.github.GithubPullRequestEvent: when new pull request related
+      activity happens.
+    platypush.message.event.github.GithubPullRequestReviewCommentEvent: when activity
+      happens on a pullrequest commit.
+    platypush.message.event.github.GithubPushEvent: when a new push is created.
+    platypush.message.event.github.GithubReleaseEvent: when a new release happens.
+    platypush.message.event.github.GithubSponsorshipEvent: when new sponsorship related
+      activity happens.
+    platypush.message.event.github.GithubWatchEvent: when someone stars/starts watching
+      a repository.
+    platypush.message.event.github.GithubWikiEvent: when new activity happens on a
+      repository wiki.
+  install:
+    pip: []
+  package: platypush.backend.github
+  type: backend

platypush/backend/google/fit/manifest.yaml

@@ -0,0 +1,8 @@
+manifest:
+  events:
+    platypush.message.event.google.fit.GoogleFitEvent: when a newdata point is received
+      on one of the registered streams.
+  install:
+    pip: []
+  package: platypush.backend.google.fit
+  type: backend

platypush/backend/google/pubsub/manifest.yaml

@@ -0,0 +1,9 @@
+manifest:
+  events:
+    platypush.message.event.google.pubsub.GooglePubsubMessageEvent: when a new message
+      is received ona subscribed topic.
+  install:
+    pip:
+    - google-cloud-pubsub
+  package: platypush.backend.google.pubsub
+  type: backend

platypush/backend/gps/manifest.yaml

@@ -0,0 +1,16 @@
+manifest:
+  events:
+    platypush.message.event.gps.GPSDeviceEvent: when a GPS device is connected or
+      updated
+    platypush.message.event.gps.GPSUpdateEvent: when a GPS device has new data
+    platypush.message.event.gps.GPSVersionEvent: when a GPS device advertises its
+      version data
+  install:
+    pip:
+      - gps
+    pacman:
+      - gpsd
+    apt:
+      - gpsd
+  package: platypush.backend.gps
+  type: backend

platypush/backend/http/__init__.py

@@ -4,6 +4,11 @@ import threading
 
 from multiprocessing import Process
 
+try:
+    from websockets.exceptions import ConnectionClosed
+except ImportError:
+    from websockets import ConnectionClosed
+
 from platypush.backend import Backend
 from platypush.backend.http.app import application
 from platypush.context import get_or_create_event_loop
@@ -146,9 +151,7 @@ class HttpBackend(Backend):
     Requires:
 
         * **flask** (``pip install flask``)
-        * **redis** (``pip install redis``)
-        * **websockets** (``pip install websockets``)
-        * **python-dateutil** (``pip install python-dateutil``)
+        * **bcrypt** (``pip install bcrypt``)
         * **magic** (``pip install python-magic``), optional, for MIME type
             support if you want to enable media streaming
         * **uwsgi** (``pip install uwsgi`` plus uwsgi server installed on your
@@ -328,8 +331,6 @@ class HttpBackend(Backend):
 
     def notify_web_clients(self, event):
         """ Notify all the connected web clients (over websocket) of a new event """
-        import websockets
-
         async def send_event(ws):
             try:
                 self._acquire_websocket_lock(ws)
@@ -345,7 +346,7 @@ class HttpBackend(Backend):
         for _ws in wss:
             try:
                 loop.run_until_complete(send_event(_ws))
-            except websockets.exceptions.ConnectionClosed:
+            except ConnectionClosed:
                 self.logger.warning('Websocket client {} connection lost'.format(_ws.remote_address))
                 self.active_websockets.remove(_ws)
                 if _ws.remote_address in self._websocket_locks:
@@ -365,7 +366,7 @@ class HttpBackend(Backend):
 
             try:
                 await websocket.recv()
-            except websockets.exceptions.ConnectionClosed:
+            except ConnectionClosed:
                 self.logger.info('Websocket client {} closed connection'.format(address))
                 self.active_websockets.remove(websocket)
                 if address in self._websocket_locks:

platypush/backend/http/app/routes/plugins/camera/ir/mlx90640.py

@@ -4,7 +4,7 @@ from platypush.backend.http.app import template_folder
 from platypush.backend.http.app.routes.plugins.camera import get_photo, get_video
 from platypush.backend.http.app.utils import authenticate
 
-camera_ir_mlx90640 = Blueprint('camera.ir.mlx90640', __name__, template_folder=template_folder)
+camera_ir_mlx90640 = Blueprint('camera-ir-mlx90640', __name__, template_folder=template_folder)
 
 # Declare routes list
 __routes__ = [

platypush/backend/http/app/routes/plugins/camera/pi.py

@@ -8,7 +8,7 @@ from platypush.backend.http.app.utils import authenticate, send_request
 from platypush.config import Config
 from platypush.plugins.camera.pi import CameraPiPlugin
 
-camera_pi = Blueprint('camera.pi', __name__, template_folder=template_folder)
+camera_pi = Blueprint('camera-pi', __name__, template_folder=template_folder)
 
 # Declare routes list
 __routes__ = [

platypush/backend/http/app/routes/plugins/media/__init__.py

@@ -2,7 +2,7 @@ import hashlib
 import json
 import threading
 
-from flask import Response, render_template
+from flask import Response
 
 from platypush.backend.http.app.utils import get_remote_base_url, logger, \
     send_message

platypush/backend/http/manifest.yaml

@@ -0,0 +1,9 @@
+manifest:
+  events: {}
+  install:
+    pip:
+    - flask
+    - bcrypt
+    - python-magic
+  package: platypush.backend.http
+  type: backend

platypush/backend/http/media/handlers/__init__.py

@@ -1,5 +1,6 @@
 import logging
 
+
 class MediaHandler:
     """
     Abstract class to manage media handlers that can be streamed over the HTTP
@@ -57,7 +58,7 @@ class MediaHandler:
         for attr in ['name', 'source', 'mime_type', 'url', 'subtitles',
                      'prefix_handlers', 'media_id']:
             if hasattr(self, attr):
-                yield (attr, getattr(self, attr))
+                yield attr, getattr(self, attr)
 
 
 from .file import FileHandler

platypush/backend/http/poll/__init__.py

@@ -34,7 +34,7 @@ class HttpPollBackend(Backend):
                 -
                     # Poll for updates on an RSS feed
                     type: platypush.backend.http.request.rss.RssUpdates
-                    url: http://www.theguardian.com/rss/world
+                    url: https://www.theguardian.com/rss/world
                     title: The Guardian - World News
                     poll_seconds: 120
                     max_entries: 10

platypush/backend/http/poll/manifest.yaml

@@ -0,0 +1,6 @@
+manifest:
+  events: {}
+  install:
+    pip: []
+  package: platypush.backend.http.poll
+  type: backend

platypush/backend/http/request/ota/booking/__init__.py

@@ -1,48 +0,0 @@
-import datetime
-import dateutil.parser
-import json
-
-from platypush.backend.http.request import JsonHttpRequest
-from platypush.message.event.http.ota.booking import NewReservationEvent
-
-
-class GetReservationUpdates(JsonHttpRequest):
-    """ Gets the reservation updates """
-    def __init__(self, hotel_id, token, *args, **kwargs):
-        self.hotel_id = hotel_id
-        self.token = token
-        self.seen_entries = set()
-        self.last_update = None
-
-        args = {
-            'method': 'get',
-            'url': 'https://hub-api.booking.com/v1/hotels/{}/reservations'.format(self.hotel_id),
-            'headers': { 'X-Booking-Auth-Token': self.token },
-            'params': { 'updatedSince': datetime.date.today().isoformat() }
-        }
-
-        super().__init__(args=args, **kwargs)
-
-
-    def get_new_items(self, response):
-        response = response.json()
-        entries = []
-
-        for entry in response:
-            update_timestamp = dateutil.parser.parse(entry['updateDate'])
-            last_update_timestamp = dateutil.parser.parse(self.last_update['updateDate']) \
-                if self.last_update else None
-
-            if self.last_update is None \
-                    or (update_timestamp > last_update_timestamp
-                        and not (
-                            entry['booker']['email'] == self.last_update['booker']['email']
-                            and entry['status'] == self.last_update['status'])):
-                self.last_update = entry
-                entries.append(entry)
-
-        return NewReservationEvent(dict(self), entries)
-
-
-# vim:sw=4:ts=4:et:
-

platypush/backend/http/request/rss/__init__.py

@@ -239,7 +239,10 @@ class RssUpdates(HttpRequest):
                         f.write(content)
                 elif self.digest_format == 'pdf':
                     from weasyprint import HTML, CSS
+                    try:
                         from weasyprint.fonts import FontConfiguration
+                    except ImportError:
+                        from weasyprint.document import FontConfiguration
 
                     body_style = 'body { ' + self.body_style + ' }'
                     font_config = FontConfiguration()

platypush/backend/inotify/manifest.yaml

@@ -0,0 +1,15 @@
+manifest:
+  events:
+    platypush.message.event.inotify.InotifyAccessEvent: if a resource is accessed
+    platypush.message.event.inotify.InotifyCloseEvent: if a resource is closed
+    platypush.message.event.inotify.InotifyCreateEvent: if a resource is created
+    platypush.message.event.inotify.InotifyDeleteEvent: if a resource is removed
+    platypush.message.event.inotify.InotifyModifyEvent: if a resource is modified
+    platypush.message.event.inotify.InotifyOpenEvent: if a resource is opened
+    platypush.message.event.inotify.InotifyPermissionsChangeEvent: if the permissions
+      of a resource are changed
+  install:
+    pip:
+    - inotify
+  package: platypush.backend.inotify
+  type: backend

platypush/backend/joystick/jstest/manifest.yaml

@@ -0,0 +1,21 @@
+manifest:
+  events:
+    platypush.message.event.joystick.JoystickAxisEvent: when an axis value of the
+      joystick changes.
+    platypush.message.event.joystick.JoystickButtonPressedEvent: when a joystick button
+      is pressed.
+    platypush.message.event.joystick.JoystickButtonReleasedEvent: when a joystick
+      button is released.
+    platypush.message.event.joystick.JoystickConnectedEvent: when the joystick is
+      connected.
+    platypush.message.event.joystick.JoystickDisconnectedEvent: when the joystick
+      is disconnected.
+    platypush.message.event.joystick.JoystickStateEvent: when the state of the joystick
+      (i.e. some of itsaxes or buttons values) changes.
+  install:
+    apt:
+      - joystick
+    pacman:
+      - jsutils
+  package: platypush.backend.joystick.jstest
+  type: backend

platypush/backend/joystick/linux/manifest.yaml

@@ -0,0 +1,16 @@
+manifest:
+  events:
+    platypush.message.event.joystick.JoystickAxisEvent: when an axis value of the
+      joystick changes.
+    platypush.message.event.joystick.JoystickButtonPressedEvent: when a joystick button
+      is pressed.
+    platypush.message.event.joystick.JoystickButtonReleasedEvent: when a joystick
+      button is released.
+    platypush.message.event.joystick.JoystickConnectedEvent: when the joystick is
+      connected.
+    platypush.message.event.joystick.JoystickDisconnectedEvent: when the joystick
+      is disconnected.
+  install:
+    pip: []
+  package: platypush.backend.joystick.linux
+  type: backend

platypush/backend/joystick/manifest.yaml

@@ -0,0 +1,8 @@
+manifest:
+  events:
+    platypush.message.event.joystick.JoystickEvent: when a new joystick event is received
+  install:
+    pip:
+    - inputs
+  package: platypush.backend.joystick
+  type: backend

platypush/backend/kafka/__init__.py

@@ -1,4 +1,3 @@
-import json
 import logging
 import time
 

platypush/backend/kafka/manifest.yaml

@@ -0,0 +1,7 @@
+manifest:
+  events: {}
+  install:
+    pip:
+    - kafka
+  package: platypush.backend.kafka
+  type: backend

platypush/backend/light/hue/manifest.yaml

@@ -0,0 +1,8 @@
+manifest:
+  events:
+    platypush.message.event.light.LightStatusChangeEvent: when thestatus of a lightbulb
+      changes
+  install:
+    pip: []
+  package: platypush.backend.light.hue
+  type: backend

platypush/backend/linode/manifest.yaml

@@ -0,0 +1,8 @@
+manifest:
+  events:
+    platypush.message.event.linode.LinodeInstanceStatusChanged: when the status of
+      an instance changes.
+  install:
+    pip: []
+  package: platypush.backend.linode
+  type: backend

platypush/backend/log/http/manifest.yaml

@@ -0,0 +1,8 @@
+manifest:
+  events:
+    platypush.message.event.log.http.HttpLogEvent: when a new log line is created.
+  install:
+    pip:
+    - watchdog
+  package: platypush.backend.log.http
+  type: backend

platypush/backend/mail/manifest.yaml

@@ -0,0 +1,10 @@
+manifest:
+  events:
+    platypush.message.event.mail.MailFlaggedEvent: when a message is marked as flagged/starred.
+    platypush.message.event.mail.MailReceivedEvent: when a new message is received.
+    platypush.message.event.mail.MailSeenEvent: when a message is marked as seen.
+    platypush.message.event.mail.MailUnflaggedEvent: when a message is marked as unflagged/unstarred.
+  install:
+    pip: []
+  package: platypush.backend.mail
+  type: backend

platypush/backend/midi/__init__.py

@@ -120,7 +120,7 @@ class MidiBackend(Backend):
                 self.logger.exception(e)
 
         if self.midi:
-            self.midi.close_port(self.port_number)
+            self.midi.close_port()
             self.midi = None
 
 

platypush/backend/midi/manifest.yaml

@@ -0,0 +1,8 @@
+manifest:
+  events:
+    platypush.message.event.midi.MidiMessageEvent: when a new MIDI event is received
+  install:
+    pip:
+    - rtmidi
+  package: platypush.backend.midi
+  type: backend

platypush/backend/mqtt/manifest.yaml

@@ -0,0 +1,9 @@
+manifest:
+  events:
+    platypush.message.event.mqtt.MQTTMessageEvent: when a newmessage is received on
+      one of the custom listeners
+  install:
+    pip:
+    - paho-mqtt
+  package: platypush.backend.mqtt
+  type: backend

platypush/backend/music/mopidy/__init__.py

@@ -2,6 +2,8 @@ import json
 import re
 import threading
 
+import websocket
+
 from platypush.backend import Backend
 from platypush.message.event.music import MusicPlayEvent, MusicPauseEvent, \
     MusicStopEvent, NewPlayingTrackEvent, PlaylistChangeEvent, VolumeChangeEvent, \
@@ -32,7 +34,7 @@ class MusicMopidyBackend(Backend):
         * :class:`platypush.message.event.music.SeekChangeEvent` if a track seek event occurs
 
     Requires:
-        * **websocket-client** (``pip install websocket-client``)
+
         * Mopidy installed and the HTTP service enabled
     """
 
@@ -88,7 +90,6 @@ class MusicMopidyBackend(Backend):
         return conv_track
 
     def _communicate(self, msg):
-        import websocket
 
         if isinstance(msg, str):
             msg = json.loads(msg)
@@ -242,8 +243,6 @@ class MusicMopidyBackend(Backend):
         return hndl
 
     def _connect(self):
-        import websocket
-
         if not self._ws:
             self._ws = websocket.WebSocketApp(self.url,
                                               on_open=self._on_open(),

platypush/backend/music/mopidy/manifest.yaml

@@ -0,0 +1,17 @@
+manifest:
+  events:
+    platypush.message.event.music.MusicPauseEvent: if the playback state changed to
+      pause
+    platypush.message.event.music.MusicPlayEvent: if the playback state changed to
+      play
+    platypush.message.event.music.MusicStopEvent: if the playback state changed to
+      stop
+    platypush.message.event.music.MuteChangeEvent: if the mute status has changed
+    platypush.message.event.music.NewPlayingTrackEvent: if a new track is being played
+    platypush.message.event.music.PlaylistChangeEvent: if the main playlist has changed
+    platypush.message.event.music.SeekChangeEvent: if a track seek event occurs
+    platypush.message.event.music.VolumeChangeEvent: if the main volume has changed
+  install:
+    pip: []
+  package: platypush.backend.music.mopidy
+  type: backend

platypush/backend/music/mpd/manifest.yaml

@@ -0,0 +1,16 @@
+manifest:
+  events:
+    platypush.message.event.music.MusicPauseEvent: if the playback state changed to
+      pause
+    platypush.message.event.music.MusicPlayEvent: if the playback state changed to
+      play
+    platypush.message.event.music.MusicStopEvent: if the playback state changed to
+      stop
+    platypush.message.event.music.NewPlayingTrackEvent: if a new track is being played
+    platypush.message.event.music.PlaylistChangeEvent: if the main playlist has changed
+    platypush.message.event.music.VolumeChangeEvent: if the main volume has changed
+  install:
+    pip:
+    - python-mpd2
+  package: platypush.backend.music.mpd
+  type: backend

platypush/backend/music/snapcast/manifest.yaml

@@ -0,0 +1,15 @@
+manifest:
+  events:
+    platypush.message.event.music.snapcast.ClientConnectedEvent: ''
+    platypush.message.event.music.snapcast.ClientDisconnectedEvent: ''
+    platypush.message.event.music.snapcast.ClientLatencyChangeEvent: ''
+    platypush.message.event.music.snapcast.ClientNameChangeEvent: ''
+    platypush.message.event.music.snapcast.ClientVolumeChangeEvent: ''
+    platypush.message.event.music.snapcast.GroupMuteChangeEvent: ''
+    platypush.message.event.music.snapcast.GroupStreamChangeEvent: ''
+    platypush.message.event.music.snapcast.ServerUpdateEvent: ''
+    platypush.message.event.music.snapcast.StreamUpdateEvent: ''
+  install:
+    pip: []
+  package: platypush.backend.music.snapcast
+  type: backend

platypush/backend/music/spotify/manifest.yaml

@@ -0,0 +1,21 @@
+manifest:
+  events:
+    platypush.message.event.music.MusicPauseEvent: if the playback state changed to
+      pause
+    platypush.message.event.music.MusicPlayEvent: if the playback state changed to
+      play
+    platypush.message.event.music.MusicStopEvent: if the playback state changed to
+      stop
+    platypush.message.event.music.NewPlayingTrackEvent: if a new track is being played
+    platypush.message.event.music.VolumeChangeEvent: if the volume changes
+  install:
+    apt:
+      - sudo
+      - cargo
+    pacman:
+      - sudo
+      - cargo
+    exec:
+      - sudo cargo install librespot
+  package: platypush.backend.music.spotify
+  type: backend

platypush/backend/nextcloud/manifest.yaml

@@ -0,0 +1,10 @@
+manifest:
+  events:
+    platypush.message.event.nextcloud.NextCloudActivityEvent: 'when new activity occurs
+      on the instance.The field ``activity_type`` identifies the activity type (e.g.
+      ``file_created``, ``file_deleted``,``file_changed``). Example in the case of
+      the creation of new files:'
+  install:
+    pip: []
+  package: platypush.backend.nextcloud
+  type: backend

platypush/backend/nfc/manifest.yaml

@@ -0,0 +1,13 @@
+manifest:
+  events:
+    platypush.message.event.nfc.NFCDeviceConnectedEvent: when an NFC reader/writer
+      is connected
+    platypush.message.event.nfc.NFCDeviceDisconnectedEvent: when an NFC reader/writer
+      is disconnected
+    platypush.message.event.nfc.NFCTagDetectedEvent: when an NFC tag is detected
+    platypush.message.event.nfc.NFCTagRemovedEvent: when an NFC tag is removed
+  install:
+    pip:
+    - ndef
+  package: platypush.backend.nfc
+  type: backend

platypush/backend/nodered/__init__.py

@@ -17,6 +17,7 @@ class NoderedBackend(Backend):
     Requires:
 
         * **pynodered** (``pip install pynodered``)
+
     """
 
     def __init__(self, port: int = 5051, *args, **kwargs):

platypush/backend/nodered/manifest.yaml

@@ -0,0 +1,7 @@
+manifest:
+  events: {}
+  install:
+    pip:
+    - pynodered
+  package: platypush.backend.nodered
+  type: backend

platypush/backend/ping/manifest.yaml

@@ -0,0 +1,8 @@
+manifest:
+  events:
+    platypush.message.event.ping.HostDownEvent: if a host stops responding ping requests
+    platypush.message.event.ping.HostUpEvent: if a host starts responding ping requests
+  install:
+    pip: []
+  package: platypush.backend.ping
+  type: backend

platypush/backend/pushbullet/__init__.py

@@ -21,8 +21,8 @@ class PushbulletBackend(Backend):
 
     Requires:
 
-        * **requests** (``pip install requests``)
-        * **pushbullet.py** (``pip install git+https://github.com/rbrcsk/pushbullet.py``)
+        * **pushbullet.py** (``pip install git+https://github.com/pushbullet.py/pushbullet.py``)
+
     """
 
     def __init__(self, token: str, device: str = 'Platypush', proxy_host: Optional[str] = None,
@@ -52,7 +52,7 @@ class PushbulletBackend(Backend):
         try:
             self.device = self.pb.get_device(self.device_name)
         except Exception as e:
-            self.logger.info('Device {} does not exist: {}. Creating it'.format(self.device_name, str(e)))
+            self.logger.info(f'Device {self.device_name} does not exist: {e}. Creating it')
             self.device = self.pb.new_device(self.device_name)
 
         self.pb_device_id = self.get_device_id()
@@ -91,17 +91,15 @@ class PushbulletBackend(Backend):
 
                 if 'body' not in push:
                     return
-                self.logger.debug('Received push: {}'.format(push))
+                self.logger.debug(f'Received push: {push}')
 
                 body = push['body']
                 try:
                     body = json.loads(body)
                     self.on_message(body)
                 except Exception as e:
-                    self.logger.debug(('Unexpected message received on the ' +
-                                       'Pushbullet backend: {}. Message: {}')
-                                      .format(str(e), body))
-
+                    self.logger.debug('Unexpected message received on the ' +
+                                      f'Pushbullet backend: {e}. Message: {body}')
             except Exception as e:
                 self.logger.exception(e)
                 return
@@ -116,9 +114,7 @@ class PushbulletBackend(Backend):
             device = self.pb.new_device(self.device_name, model='Platypush virtual device',
                                         manufacturer='platypush', icon='system')
 
-            self.logger.info('Created Pushbullet device {}'.format(
-                self.device_name))
-
+            self.logger.info(f'Created Pushbullet device {self.device_name}')
             return device.device_iden
 
     def close(self):
@@ -133,27 +129,33 @@ class PushbulletBackend(Backend):
         self.logger.info('Pushbullet backend terminated')
 
     def on_close(self, err=None):
+        def callback(*_):
             self.listener = None
             raise RuntimeError(err or 'Connection closed')
 
+        return callback
+
     def on_open(self):
+        def callback(*_):
             self.logger.info('Pushbullet service connected')
 
+        return callback
+
     def run_listener(self):
         from .listener import Listener
 
-        self.logger.info('Initializing Pushbullet backend - device_id: {}'.format(self.device_name))
-        self.listener = Listener(account=self.pb, on_push=self.on_push(),
-                                 on_open=self.on_open,
-                                 on_close=self.on_close,
-                                 on_error=self.on_close,
+        self.logger.info(f'Initializing Pushbullet backend - device_id: {self.device_name}')
+        self.listener = Listener(account=self.pb,
+                                 on_push=self.on_push(),
+                                 on_open=self.on_open(),
+                                 on_close=self.on_close(),
+                                 on_error=self.on_close(),
                                  http_proxy_host=self.proxy_host,
                                  http_proxy_port=self.proxy_port)
 
         self.listener.run_forever()
 
     def run(self):
-        # noinspection PyPackageRequirements
         super().run()
         initialized = False
 
@@ -163,7 +165,7 @@ class PushbulletBackend(Backend):
                 initialized = True
             except Exception as e:
                 self.logger.exception(e)
-                self.logger.error('Pushbullet initialization error: {}'.format(str(e)))
+                self.logger.error(f'Pushbullet initialization error: {e}')
                 time.sleep(10)
 
         while not self.should_stop():
@@ -175,5 +177,4 @@ class PushbulletBackend(Backend):
                 self.logger.info('Retrying connection')
 
 
-
 # vim:sw=4:ts=4:et:

platypush/backend/pushbullet/manifest.yaml

@@ -0,0 +1,8 @@
+manifest:
+  events:
+    platypush.message.event.pushbullet.PushbulletEvent: if a new push is received
+  install:
+    pip:
+    - git+https://github.com/rbrcsk/pushbullet.py
+  package: platypush.backend.pushbullet
+  type: backend

platypush/backend/redis/__init__.py

@@ -14,11 +14,6 @@ class RedisBackend(Backend):
     ``platypush_bus_mq``) and posts them to the application bus.  Very
     useful when you have plugin whose code is executed in another process
     and can't post events or requests to the application bus.
-
-    Requires:
-
-        * **redis** (``pip install redis``)
-
     """
 
     def __init__(self, queue='platypush_bus_mq', redis_args=None, *args, **kwargs):

platypush/backend/redis/manifest.yaml

@@ -0,0 +1,6 @@
+manifest:
+  events: {}
+  install:
+    pip: []
+  package: platypush.backend.redis
+  type: backend

platypush/backend/scard/__init__.py

@@ -1,5 +1,3 @@
-import json
-
 from platypush.backend import Backend
 from platypush.message.event.scard import SmartCardDetectedEvent, SmartCardRemovedEvent
 
@@ -41,10 +39,15 @@ class ScardBackend(Backend):
                                    "supported types: string, list".format(
                                        atr, type(atr)))
 
-            self.cardtype = ATRCardType( *[toBytes(atr) for atr in self.ATRs] )
+            self.cardtype = ATRCardType(*[self._to_bytes(atr) for atr in self.ATRs])
         else:
             self.cardtype = AnyCardType()
 
+    @staticmethod
+    def _to_bytes(data) -> bytes:
+        if isinstance(data, str):
+            data = data.encode()
+        return data
 
     def run(self):
         from smartcard.CardRequest import CardRequest
@@ -82,6 +85,4 @@ class ScardBackend(Backend):
 
                 prev_atr = None
 
-
 # vim:sw=4:ts=4:et:
-

platypush/backend/scard/manifest.yaml

@@ -0,0 +1,9 @@
+manifest:
+  events:
+    platypush.message.event.scard.SmartCardDetectedEvent: when a smart card is detected
+    platypush.message.event.scard.SmartCardRemovedEvent: when a smart card is removed
+  install:
+    pip:
+    - pyscard
+  package: platypush.backend.scard
+  type: backend

platypush/backend/sensor/__init__.py

@@ -17,6 +17,7 @@ class SensorBackend(Backend):
             gone above a configured threshold
         * :class:`platypush.message.event.sensor.SensorDataBelowThresholdEvent` if the measurements of a sensor have
             gone below a configured threshold
+
     """
 
     default_tolerance = 1e-7