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#!/usr/bin/env python
import json
import shutil
import subprocess
import sys
import typing
__all__ = ["_mem", "_backlight", "_hwtemp"]
_BITS: list[tuple[int, str, typing.Callable]] = []
def _bit(idx):
def wrapper(func):
_BITS.append((idx, func.__name__.replace("_", ""), func))
return func
return wrapper
@_bit(6)
def _mem():
with open("/proc/meminfo") as meminfo_fp:
attrs = {}
for line in meminfo_fp.readlines():
parts = line.split(":", 2)
attrs[parts[0].strip()] = parts[1].strip()
avail = int(attrs["MemAvailable"].split()[0])
total = int(attrs["MemTotal"].split()[0])
used = int(((total - avail) / total) * 100)
color = None
if used > 75:
color = "#ff0000"
if used < 25:
color = "#00ff00"
return "M:{}%".format(used), color
@_bit(0)
def _backlight(dev_dir="/sys/class/backlight/intel_backlight"):
with open("{}/brightness".format(dev_dir)) as br_fp:
with open("{}/max_brightness".format(dev_dir)) as mb_fp:
value = int(br_fp.read().strip())
max_value = int(mb_fp.read().strip())
pct = int(float(float(value) / float(max_value)) * 100)
color = None
if pct >= 75:
color = "#ffaa00"
if pct <= 25:
color = "#5599ff"
return "☼:{}%".format(pct), color
ACPI_IBM_FAN = "/proc/acpi/ibm/fan"
@_bit(7)
def _hwtemp(fan=ACPI_IBM_FAN):
acpi_exe = shutil.which("acpi")
if acpi_exe is None:
return None, None
raw_temp = subprocess.run(
[acpi_exe, "-t"],
text=True,
capture_output=True,
check=False,
)
if raw_temp.returncode != 0 or raw_temp.stdout is None:
return None, None
temps_by_zone = {}
for line in raw_temp.stdout.splitlines():
zone_id, value = line.split(":")
human_temp = value.split(",")[-1]
temps_by_zone[zone_id.lower().lstrip("thermal ")] = float(
human_temp.lower().strip().rstrip("degrees c")
)
temps = list(temps_by_zone.values())
avg_temp = float(sum(temps)) / len(temps)
color = "#5599ff"
if avg_temp > 75:
color = "#ff0000"
if avg_temp >= 50:
color = "#ffaa00"
fan_level = "unset"
try:
with open(fan) as fan_fp:
for line in fan_fp.readlines():
if not line.startswith("level:\t\t"):
continue
fan_level = int(line.replace("level:\t\t", ""))
except (OSError, IOError) as exc:
sys.stderr.write(str(exc) + "\n")
return "T:{:.1f}°C L:{}".format(avg_temp, fan_level), color
def _print_line(message):
sys.stdout.write(message + "\n")
sys.stdout.flush()
def _read_line():
try:
line = sys.stdin.readline().strip()
if not line:
sys.exit(3)
return line
except KeyboardInterrupt:
sys.exit()
def main(bits=_BITS):
_print_line(_read_line())
_print_line(_read_line())
while True:
line, prefix = _read_line(), ""
if line.startswith(","):
line, prefix = line[1:], ","
loaded = json.loads(line)
for idx, name, func in bits:
try:
value, color = func()
if value is None:
continue
record = dict(full_text=str(value), name=name)
if color is not None:
record.update(dict(color=color))
loaded.insert(idx, record)
except Exception as exc:
sys.stderr.write(str(exc) + "\n")
sys.stderr.flush()
_print_line(prefix + json.dumps(loaded))
if __name__ == "__main__":
main()