dotfiles/welcome/main.py
2018-08-08 23:08:05 +03:00

272 lines
6.9 KiB
Python

import os
import platform
import re
import socket
from datetime import datetime, timedelta
from getpass import getuser
import psutil
from colorama import Fore, Style, ansi
COLORS = [ansi.code_to_chars(30 + color_index) for color_index in range(0, 8)]
def colored(string, *colors):
return "".join(colors + (string, Style.RESET_ALL))
def bright_colored(string, *colors):
return "".join(colors + (Style.BRIGHT, string, Style.RESET_ALL))
def format_timedelta(timedelta):
result = []
days = timedelta.days
mm, ss = divmod(timedelta.seconds, 60)
hh, mm = divmod(mm, 60)
def plural(n):
return n, "s" if abs(n) != 1 else ""
if days > 0:
result.append("%d day%s" % plural(days))
if hh > 0 or result:
result.append("%d hour%s" % plural(hh))
if mm > 0 or result:
result.append("%d min%s" % plural(mm))
if len(result) <= 1:
result.append("%d sec%s" % plural(ss))
return ", ".join(result)
def humanize_bytes(bytes):
units = ["B", "kB", "MB", "GB"]
factor = 1
for _unit in units:
next_factor = factor << 10
if bytes < next_factor:
break
factor = next_factor
return "%.2f %s" % (float(bytes) / factor, _unit)
def colorize_percent(percent, warning, critical, inverse=False):
COLORS = [Fore.GREEN, Fore.YELLOW, Fore.RED]
color_index = 0 if percent < warning else 1 if percent < critical else 2
if inverse:
color_index = 2 - color_index
return colored("%.2f%%" % percent, COLORS[color_index])
def get_hostname():
hostname = socket.gethostname()
local_ip = socket.gethostbyname(hostname)
return hostname, local_ip
def uptime():
return datetime.now() - datetime.fromtimestamp(psutil.boot_time())
def users():
users = {}
for user in psutil.users():
name = user.name
terminal = user.terminal
if name in users:
users[name].append(terminal)
else:
users[name] = [terminal]
result = []
for name in users:
terminals = users[name]
colored_name = bright_colored(name, Fore.BLUE)
colored_terminals = [
colored(term, Style.BRIGHT, Fore.BLACK) for term in terminals
]
terminals_str = ", ".join(colored_terminals)
if len(colored_terminals) > 1:
terminals_str = "(%s)" % terminals_str
result.append(colored_name + "@" + terminals_str)
return ", ".join(result)
def shell():
return os.environ["SHELL"]
def cpu_usage():
percent = psutil.cpu_percent()
return colorize_percent(percent, warning=60, critical=80)
def memory():
memory = psutil.virtual_memory()
return (
humanize_bytes(memory.used),
humanize_bytes(memory.total),
colorize_percent(memory.percent, warning=60, critical=80),
)
def disks():
result = []
for disk in psutil.disk_partitions(all=False):
if psutil.WINDOWS and ("cdrom" in disk.opts or disk.fstype == ""):
# skip cd-rom drives with no disk in it on Windows; they may raise
# ENOENT, pop-up a Windows GUI error for a non-ready partition or
# just hang
continue
usage = psutil.disk_usage(disk.mountpoint)
result.append(
(
disk.mountpoint,
humanize_bytes(usage.used),
humanize_bytes(usage.total),
colorize_percent(usage.percent, warning=70, critical=85),
)
)
return result
def battery():
if not hasattr(psutil, "sensors_battery"):
return None
try:
battery = psutil.sensors_battery()
except Exception as e:
print(e)
return None
if battery is None:
return None
percent = battery.percent
if battery.power_plugged:
status = "charging" if percent < 100 else "fully charged"
else:
status = "%s left" % format_timedelta(timedelta(seconds=battery.secsleft))
return colorize_percent(percent, critical=10, warning=20, inverse=True), status
def is_android():
return os.path.isdir("/system/app") and os.path.isdir("/system/priv-app")
def get_distro_info():
if psutil.WINDOWS:
return "windows", platform.system(), platform.release(), ""
elif psutil.OSX:
from plistlib import readPlist
sw_vers = readPlist("/System/Library/CoreServices/SystemVersion.plist")
return "mac", sw_vers["ProductName"], sw_vers["ProductVersion"], ""
elif is_android():
from subprocess import check_output
android_version = check_output(["getprop", "ro.build.version.release"])
return "android", "Android", android_version.decode().strip(), ""
elif psutil.LINUX:
import distro
return distro.id(), distro.name(), distro.version(), distro.codename()
raise NotImplementedError("unsupported OS")
def get_system_info():
info_lines = []
def info(name, value, *format_args):
line = colored(name + ":", Style.BRIGHT, Fore.YELLOW) + " " + value
if format_args:
line = line % format_args
info_lines.append(line)
username = getuser()
hostname, local_ip = get_hostname()
info_lines.append(
bright_colored(username, Fore.BLUE) + "@" + bright_colored(hostname, Fore.RED)
)
info_lines.append("")
distro_id, distro_name, distro_version, distro_codename = get_distro_info()
info("OS", " ".join([distro_name, distro_version, distro_codename]))
logo_path = os.path.join(os.path.dirname(__file__), "logos", distro_id)
with open(logo_path) as logo_file:
logo_lines = logo_file.read().splitlines()
info("Kernel", "%s %s", platform.system(), platform.release())
info("Uptime", format_timedelta(uptime()))
users_info = users()
if users_info:
info("Users", users_info)
info("Shell", shell())
info("IP address", local_ip)
info_lines.append("")
info("CPU Usage", "%s", cpu_usage())
info("Memory", "%s / %s (%s)", *memory())
for disk_info in disks():
info("Disk (%s)", "%s / %s (%s)", *disk_info)
battery_info = battery()
if battery_info is not None:
info("Battery", "%s (%s)", *battery_info)
return logo_lines, info_lines
print("")
logo_lines, info_lines = get_system_info()
logo_line_widths = [len(re.sub(r"{\d}", "", line)) for line in logo_lines]
logo_width = max(logo_line_widths)
for line_index in range(0, max(len(logo_lines), len(info_lines))):
line = ""
logo_line_width = 0
if line_index < len(logo_lines):
logo_line = logo_lines[line_index]
logo_line_width = logo_line_widths[line_index]
line += Style.BRIGHT
line += logo_line.format(*COLORS)
line += Style.RESET_ALL
line += " " * (logo_width - logo_line_width + 3)
if line_index < len(info_lines):
info_line = info_lines[line_index]
line += info_line
print(line)
print("")