dotfiles/config/lemonbar/providers.py
2018-10-06 10:27:36 +02:00

781 lines
24 KiB
Python
Executable file

#!/usr/bin/env python3
import datetime
from updaters import *
from display import *
import pulsectl
import psutil
import subprocess
import socket
import ipaddress
import logging
import coloredlogs
import json
import notmuch
import mpd
import random
coloredlogs.install(level='DEBUG', fmt='%(levelname)s %(message)s')
log = logging.getLogger()
# TODO Generator class (for I3WorkspacesProvider, NetworkProvider and later
# PulseaudioProvider and MpdProvider)
def humanSize(num):
"""
Returns a string of width 3+3
"""
for unit in ('B ','KiB','MiB','GiB','TiB','PiB','EiB','ZiB'):
if abs(num) < 1000:
if num >= 10:
return "{:3d}{}".format(int(num), unit)
else:
return "{:.1f}{}".format(num, unit)
num /= 1024.0
return "{:d}YiB".format(num)
def randomColor(seed=0):
random.seed(seed)
return '#{:02x}{:02x}{:02x}'.format(*[random.randint(0, 255) for _ in range(3)])
class TimeProvider(StatefulSection, PeriodicUpdater):
FORMATS = ["%H:%M",
"%d/%m %H:%M:%S",
"%a %d/%m/%y %H:%M:%S"]
NUMBER_STATES = len(FORMATS)
DEFAULT_STATE = 1
def fetcher(self):
now = datetime.datetime.now()
return now.strftime(self.FORMATS[self.state])
def __init__(self, theme=None):
PeriodicUpdater.__init__(self)
StatefulSection.__init__(self, theme)
self.changeInterval(1) # TODO OPTI When state < 1
class AlertLevel(enum.Enum):
NORMAL = 0
WARNING = 1
DANGER = 2
class AlertingSection(StatefulSection):
# TODO EASE Correct settings for themes
THEMES = {AlertLevel.NORMAL: 2,
AlertLevel.WARNING: 3,
AlertLevel.DANGER: 1}
PERSISTENT = True
def getLevel(self, quantity):
if quantity > self.dangerThresold:
return AlertLevel.DANGER
elif quantity > self.warningThresold:
return AlertLevel.WARNING
else:
return AlertLevel.NORMAL
def updateLevel(self, quantity):
self.level = self.getLevel(quantity)
self.updateTheme(self.THEMES[self.level])
if self.level == AlertLevel.NORMAL:
return
# TODO Temporary update state
def __init__(self, theme):
StatefulSection.__init__(self, theme)
self.dangerThresold = 0.90
self.warningThresold = 0.75
class CpuProvider(AlertingSection, PeriodicUpdater):
NUMBER_STATES = 3
ICON = ''
def fetcher(self):
percent = psutil.cpu_percent(percpu=False)
self.updateLevel(percent/100)
if self.state >= 2:
percents = psutil.cpu_percent(percpu=True)
return ''.join([Section.ramp(p/100) for p in percents])
elif self.state >= 1:
return Section.ramp(percent/100)
def __init__(self, theme=None):
AlertingSection.__init__(self, theme)
PeriodicUpdater.__init__(self)
self.changeInterval(1)
class RamProvider(AlertingSection, PeriodicUpdater):
"""
Shows free RAM
"""
NUMBER_STATES = 4
ICON = ''
def fetcher(self):
mem = psutil.virtual_memory()
freePerc = mem.percent/100
self.updateLevel(freePerc)
if self.state < 1:
return None
text = Text(Section.ramp(1-freePerc))
if self.state >= 2:
freeStr = humanSize(mem.available)
text.append(freeStr)
if self.state >= 3:
totalStr = humanSize(mem.total)
text.append('/', totalStr)
return text
def __init__(self, theme=None):
AlertingSection.__init__(self, theme)
PeriodicUpdater.__init__(self)
self.changeInterval(1)
class TemperatureProvider(AlertingSection, PeriodicUpdater):
NUMBER_STATES = 2
RAMP = ""
def fetcher(self):
allTemp = psutil.sensors_temperatures()
if 'coretemp' not in allTemp:
# TODO Opti Remove interval
return ''
temp = allTemp['coretemp'][0]
self.warningThresold = temp.high
self.dangerThresold = temp.critical
self.updateLevel(temp.current)
self.icon = Section.ramp(temp.current/temp.high, self.RAMP)
if self.state >= 1:
return '{:.0f}°C'.format(temp.current)
def __init__(self, theme=None):
AlertingSection.__init__(self, theme)
PeriodicUpdater.__init__(self)
self.changeInterval(5)
class BatteryProvider(AlertingSection, PeriodicUpdater):
# TODO Support ACPID for events
NUMBER_STATES = 3
RAMP = ""
def fetcher(self):
bat = psutil.sensors_battery()
if not bat:
self.icon = None
return None
self.icon = ("" if bat.power_plugged else "") + \
Section.ramp(bat.percent/100, self.RAMP)
self.updateLevel(1-bat.percent/100)
if self.state < 1:
return
t = Text('{:.0f}%'.format(bat.percent))
if self.state < 2:
return t
h = int(bat.secsleft / 3600)
m = int((bat.secsleft - h * 3600) / 60)
t.append(" ({:d}:{:02d})".format(h, m))
return t
def __init__(self, theme=None):
AlertingSection.__init__(self, theme)
PeriodicUpdater.__init__(self)
self.changeInterval(5)
class PulseaudioProvider(StatefulSection, ThreadedUpdater):
NUMBER_STATES = 3
DEFAULT_STATE = 1
def __init__(self, theme=None):
ThreadedUpdater.__init__(self)
StatefulSection.__init__(self, theme)
self.pulseEvents = pulsectl.Pulse('event-handler')
self.pulseEvents.event_mask_set(pulsectl.PulseEventMaskEnum.sink)
self.pulseEvents.event_callback_set(self.handleEvent)
self.start()
self.refreshData()
def fetcher(self):
sinks = []
with pulsectl.Pulse('list-sinks') as pulse:
for sink in pulse.sink_list():
if sink.port_active.name == "analog-output-headphones":
icon = ""
elif sink.port_active.name == "analog-output-speaker":
icon = "" if sink.mute else ""
else:
icon = "?"
vol = pulse.volume_get_all_chans(sink)
fg = (sink.mute and '#333333') or (vol > 1 and '#FF0000') or None
t = Text(icon, fg=fg)
sinks.append(t)
if self.state < 1:
continue
if self.state < 2:
if not sink.mute:
ramp = " "
while vol >= 0:
ramp += self.ramp(vol if vol < 1 else 1)
vol -= 1
t.append(ramp)
else:
t.append(" {:2.0f}%".format(vol*100))
return Text(*sinks)
def loop(self):
self.pulseEvents.event_listen()
def handleEvent(self, ev):
self.refreshData()
class NetworkProviderSection(StatefulSection, Updater):
NUMBER_STATES = 5
DEFAULT_STATE = 1
def actType(self):
self.ssid = None
if self.iface.startswith('eth') or self.iface.startswith('enp'):
if 'u' in self.iface:
self.icon = ''
else:
self.icon = ''
elif self.iface.startswith('wlan') or self.iface.startswith('wlp'):
self.icon = ''
if self.showSsid:
cmd = ["iwgetid", self.iface, "--raw"]
p = subprocess.run(cmd, stdout=subprocess.PIPE)
self.ssid = p.stdout.strip().decode()
elif self.iface.startswith('tun') or self.iface.startswith('tap'):
self.icon = ''
else:
self.icon = '?'
def getAddresses(self):
ipv4 = None
ipv6 = None
for address in self.parent.addrs[self.iface]:
if address.family == socket.AF_INET:
ipv4 = address
elif address.family == socket.AF_INET6:
ipv6 = address
return ipv4, ipv6
def fetcher(self):
self.icon = None
self.persistent = False
if self.iface not in self.parent.stats or \
not self.parent.stats[self.iface].isup or \
self.iface.startswith('lo'):
return None
# Get addresses
ipv4, ipv6 = self.getAddresses()
if ipv4 is None and ipv6 is None:
return None
text = []
self.persistent = True
self.actType()
if self.showSsid and self.ssid:
text.append(self.ssid)
if self.showAddress:
if ipv4:
netStrFull = '{}/{}'.format(ipv4.address, ipv4.netmask)
addr = ipaddress.IPv4Network(netStrFull, strict=False)
addrStr = '{}/{}'.format(ipv4.address, addr.prefixlen)
text.append(addrStr)
# TODO IPV6
# if ipv6:
# text += ' ' + ipv6.address
if self.showSpeed:
recvDiff = self.parent.IO[self.iface].bytes_recv \
- self.parent.prevIO[self.iface].bytes_recv
sentDiff = self.parent.IO[self.iface].bytes_sent \
- self.parent.prevIO[self.iface].bytes_sent
recvDiff /= self.parent.dt
sentDiff /= self.parent.dt
text.append('{}{}'.format(humanSize(recvDiff),
humanSize(sentDiff)))
if self.showTransfer:
text.append('{}{}'.format(
humanSize(self.parent.IO[self.iface].bytes_recv),
humanSize(self.parent.IO[self.iface].bytes_sent)))
return ' '.join(text)
def onChangeState(self, state):
self.showSsid = state >= 1
self.showAddress = state >= 2
self.showSpeed = state >= 3
self.showTransfer = state >= 4
def __init__(self, iface, parent):
Updater.__init__(self)
StatefulSection.__init__(self, theme=parent.theme)
self.iface = iface
self.parent = parent
class NetworkProvider(Section, PeriodicUpdater):
def fetchData(self):
self.prev = self.last
self.prevIO = self.IO
self.stats = psutil.net_if_stats()
self.addrs = psutil.net_if_addrs()
self.IO = psutil.net_io_counters(pernic=True)
self.ifaces = self.stats.keys()
self.last = time.perf_counter()
self.dt = self.last - self.prev
def fetcher(self):
self.fetchData()
# Add missing sections
lastSection = self
for iface in sorted(list(self.ifaces)):
if iface not in self.sections.keys():
section = NetworkProviderSection(iface, self)
lastSection.appendAfter(section)
self.sections[iface] = section
else:
section = self.sections[iface]
lastSection = section
# Refresh section text
for section in self.sections.values():
section.refreshData()
return None
def addParent(self, parent):
self.parents.add(parent)
self.refreshData()
def __init__(self, theme=None):
PeriodicUpdater.__init__(self)
Section.__init__(self, theme)
self.sections = dict()
self.last = 0
self.IO = dict()
self.fetchData()
self.changeInterval(5)
class RfkillProvider(Section, PeriodicUpdater):
# TODO FEAT rfkill doesn't seem to indicate that the hardware switch is
# toggled
PATH = '/sys/class/rfkill'
def fetcher(self):
t = Text()
for device in os.listdir(self.PATH):
with open(os.path.join(self.PATH, device, 'soft'), 'rb') as f:
softBlocked = f.read().strip() != b'0'
with open(os.path.join(self.PATH, device, 'hard'), 'rb') as f:
hardBlocked = f.read().strip() != b'0'
if not hardBlocked and not softBlocked:
continue
with open(os.path.join(self.PATH, device, 'type'), 'rb') as f:
typ = f.read().strip()
fg = (hardBlocked and '#CCCCCC') or (softBlocked and '#FF0000')
if typ == b'wlan':
icon = ''
elif typ == b'bluetooth':
icon = ''
else:
icon = '?'
t.append(Text(icon, fg=fg))
return t
def __init__(self, theme=None):
PeriodicUpdater.__init__(self)
Section.__init__(self, theme)
self.changeInterval(5)
class SshAgentProvider(PeriodicUpdater):
def fetcher(self):
cmd = ["ssh-add", "-l"]
proc = subprocess.run(cmd, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL)
if proc.returncode != 0:
return None
text = Text()
for line in proc.stdout.split(b'\n'):
if not len(line):
continue
fingerprint = line.split()[1]
text.append(Text('', fg=randomColor(seed=fingerprint)))
return text
def __init__(self):
PeriodicUpdater.__init__(self)
self.changeInterval(5)
class GpgAgentProvider(PeriodicUpdater):
def fetcher(self):
cmd = ["gpg-connect-agent", "keyinfo --list", "/bye"]
proc = subprocess.run(cmd, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL)
# proc = subprocess.run(cmd)
if proc.returncode != 0:
return None
text = Text()
for line in proc.stdout.split(b'\n'):
if not len(line) or line == b'OK':
continue
spli = line.split()
if spli[6] != b'1':
continue
keygrip = spli[2]
text.append(Text('', fg=randomColor(seed=keygrip)))
return text
def __init__(self):
PeriodicUpdater.__init__(self)
self.changeInterval(5)
class KeystoreProvider(Section, MergedUpdater):
# TODO OPTI+FEAT Use ColorCountsSection and not MergedUpdater, this is useless
ICON = ''
def __init__(self, theme=None):
MergedUpdater.__init__(self, SshAgentProvider(), GpgAgentProvider())
Section.__init__(self, theme)
class NotmuchUnreadProvider(ColorCountsSection, InotifyUpdater):
COLORABLE_ICON = ''
def subfetcher(self):
db = notmuch.Database(mode=notmuch.Database.MODE.READ_ONLY, path=self.dir)
counts = []
for account in self.accounts:
queryStr = 'folder:/{}/ and tag:unread'.format(account)
query = notmuch.Query(db, queryStr)
nbMsgs = query.count_messages()
if nbMsgs < 1:
continue
counts.append((nbMsgs, self.colors[account]))
db.close()
return counts
def __init__(self, dir='~/.mail/', theme=None):
PeriodicUpdater.__init__(self)
ColorCountsSection.__init__(self, theme)
self.dir = os.path.realpath(os.path.expanduser(dir))
assert os.path.isdir(self.dir)
# Fetching account list
self.accounts = sorted([a for a in os.listdir(self.dir)
if not a.startswith('.')])
# Fetching colors
self.colors = dict()
for account in self.accounts:
filename = os.path.join(self.dir, account, 'color')
with open(filename, 'r') as f:
color = f.read().strip()
self.colors[account] = color
self.addPath(os.path.join(self.dir, '.notmuch', 'xapian'))
class TodoProvider(ColorCountsSection, InotifyUpdater):
# TODO OPT/UX Maybe we could get more data from the todoman python module
# TODO OPT Specific callback for specific directory
COLORABLE_ICON = ''
def updateCalendarList(self):
calendars = sorted(os.listdir(self.dir))
for calendar in calendars:
# If the calendar wasn't in the list
if calendar not in self.calendars:
self.addPath(os.path.join(self.dir, calendar), refresh=False)
# Fetching name
path = os.path.join(self.dir, calendar, 'displayname')
with open(path, 'r') as f:
self.names[calendar] = f.read().strip()
# Fetching color
path = os.path.join(self.dir, calendar, 'color')
with open(path, 'r') as f:
self.colors[calendar] = f.read().strip()
self.calendars = calendars
def __init__(self, dir, theme=None):
"""
:parm str dir: [main]path value in todoman.conf
"""
InotifyUpdater.__init__(self)
ColorCountsSection.__init__(self, theme=theme)
self.dir = os.path.realpath(os.path.expanduser(dir))
assert os.path.isdir(self.dir)
self.calendars = []
self.colors = dict()
self.names = dict()
self.updateCalendarList()
self.refreshData()
def countUndone(self, calendar):
cmd = ["todo", "--porcelain", "list"]
if calendar:
cmd.append(self.names[calendar])
proc = subprocess.run(cmd, stdout=subprocess.PIPE)
data = json.loads(proc.stdout)
return len(data)
def subfetcher(self):
counts = []
# TODO This an ugly optimisation that cuts on features, but todoman
# calls are very expensive so we keep that in the meanwhile
if self.state < 2:
c = self.countUndone(None)
if c > 0:
counts.append((c, '#00000'))
counts.append((0, '#FFFFF'))
return counts
# Optimisation ends here
for calendar in self.calendars:
c = self.countUndone(calendar)
if c <= 0:
continue
counts.append((c, self.colors[calendar]))
return counts
class I3WindowTitleProvider(Section, I3Updater):
# TODO FEAT To make this available from start, we need to find the
# `focused=True` element following the `focus` array
# TODO Feat Make this output dependant if wanted
def on_window(self, i3, e):
self.updateText(e.container.name)
def __init__(self, theme=None):
I3Updater.__init__(self)
Section.__init__(self, theme=theme)
self.on("window", self.on_window)
class I3WorkspacesProviderSection(Section):
def selectTheme(self):
if self.urgent:
return self.parent.themeUrgent
elif self.focused:
return self.parent.themeFocus
else:
return self.parent.themeNormal
# TODO On mode change the state (shown / hidden) gets overriden so every
# tab is shown
def show(self):
self.updateTheme(self.selectTheme())
self.updateText(self.fullName if self.focused else self.shortName)
def changeState(self, focused, urgent):
self.focused = focused
self.urgent = urgent
self.show()
def setName(self, name):
self.shortName = name
self.fullName = self.parent.customNames[name] \
if name in self.parent.customNames else name
def switchTo(self):
self.parent.i3.command('workspace {}'.format(self.shortName))
def __init__(self, name, parent):
Section.__init__(self)
self.parent = parent
self.setName(name)
self.setDecorators(clickLeft=self.switchTo)
def empty(self):
self.updateTheme(self.parent.themeNormal)
self.updateText(None)
class I3WorkspacesProvider(Section, I3Updater):
# TODO FEAT Multi-screen
def initialPopulation(self, parent):
"""
Called on init
Can't reuse addWorkspace since i3.get_workspaces() gives dict and not
ConObjects
"""
workspaces = self.i3.get_workspaces()
lastSection = self.modeSection
for workspace in workspaces:
# if parent.display != workspace["display"]:
# continue
section = I3WorkspacesProviderSection(workspace["name"], self)
section.focused = workspace["focused"]
section.urgent = workspace["urgent"]
section.show()
parent.addSectionAfter(lastSection, section)
self.sections[workspace["num"]] = section
lastSection = section
def on_workspace_init(self, i3, e):
workspace = e.current
i = workspace.num
if i in self.sections:
section = self.sections[i]
else:
# Find the section just before
while i not in self.sections.keys() and i > 0:
i -= 1
prevSection = self.sections[i] if i != 0 else self.modeSection
section = I3WorkspacesProviderSection(workspace.name, self)
prevSection.appendAfter(section)
self.sections[workspace.num] = section
section.focused = workspace.focused
section.urgent = workspace.urgent
section.show()
def on_workspace_empty(self, i3, e):
self.sections[e.current.num].empty()
def on_workspace_focus(self, i3, e):
self.sections[e.old.num].focused = False
self.sections[e.old.num].show()
self.sections[e.current.num].focused = True
self.sections[e.current.num].show()
def on_workspace_urgent(self, i3, e):
self.sections[e.current.num].urgent = e.current.urgent
self.sections[e.current.num].show()
def on_workspace_rename(self, i3, e):
self.sections[e.current.num].setName(e.name)
self.sections[e.current.num].show()
def on_mode(self, i3, e):
if e.change == 'default':
self.modeSection.updateText(None)
for section in self.sections.values():
section.show()
else:
self.modeSection.updateText(e.change)
for section in self.sections.values():
section.empty()
def __init__(self, theme=0, themeFocus=3, themeUrgent=1, themeMode=2, customNames=dict()):
I3Updater.__init__(self)
Section.__init__(self)
self.themeNormal = theme
self.themeFocus = themeFocus
self.themeUrgent = themeUrgent
self.customNames = customNames
self.sections = dict()
self.on("workspace::init", self.on_workspace_init)
self.on("workspace::focus", self.on_workspace_focus)
self.on("workspace::empty", self.on_workspace_empty)
self.on("workspace::urgent", self.on_workspace_urgent)
self.on("workspace::rename", self.on_workspace_rename)
# TODO Un-handled/tested: reload, rename, restored, move
self.on("mode", self.on_mode)
self.modeSection = Section(theme=themeMode)
def addParent(self, parent):
self.parents.add(parent)
parent.addSection(self.modeSection)
self.initialPopulation(parent)
class MpdProvider(Section, ThreadedUpdater):
# TODO FEAT More informations and controls
MAX_LENGTH = 50
def connect(self):
self.mpd.connect('localhost', 6600)
def __init__(self, theme=None):
ThreadedUpdater.__init__(self)
Section.__init__(self, theme)
self.mpd = mpd.MPDClient()
self.connect()
self.refreshData()
self.start()
def fetcher(self):
stat = self.mpd.status()
if not len(stat) or stat["state"] == "stop":
return None
cur = self.mpd.currentsong()
if not len(cur):
return None
infos = []
def tryAdd(field):
if field in cur:
infos.append(cur[field])
tryAdd("title")
tryAdd("album")
tryAdd("artist")
infosStr = " - ".join(infos)
if len(infosStr) > MpdProvider.MAX_LENGTH:
infosStr = infosStr[:MpdProvider.MAX_LENGTH-1] + ''
return "{}".format(infosStr)
def loop(self):
try:
self.mpd.idle('player')
self.refreshData()
except mpd.base.ConnectionError as e:
log.warn(e, exc_info=True)
self.connect()
except BaseException as e:
log.error(e, exc_info=True)