Add blinkding

blink/51-blink.rules

@@ -0,0 +1 @@
+ACTION=="add", SUBSYSTEM=="usb", ENV{ID_VENDOR_ID}=="27b8", ENV{ID_MODEL_ID}=="01ed", MODE="0660", OWNER="2626", GROUP="598" RUN{program}="/bin/systemctl start blinkd"

blink/blinkd.py

@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+
+
+from blink1.blink1 import Blink1, Blink1ConnectionFailed
+from multiprocessing import cpu_count
+from re import findall
+from time import sleep
+
+
+blink = None
+
+
+def cpu_load():
+    with open('/proc/loadavg', 'r') as f:
+        load = float(f.read().split()[0])
+        cores = float(cpu_count())
+        return load/cores
+    exit(1)
+
+
+def free_memory():
+    with open('/proc/meminfo', 'r') as f:
+        meminfo = f.readlines()
+        mem = float(findall('(\d+) kB', meminfo[0])[0])
+        frm = float(findall('(\d+) kB', meminfo[1])[0])
+        return 1 - frm / mem
+    exit(1)
+
+
+def blink_times(n):
+    for i in range(n):
+        blink.fade_to_color(0, 'white')
+        sleep(0.1)
+        blink.fade_to_color(0, 'black')
+        sleep(0.1)
+
+
+def show(p):
+    if p < 0.2:
+        blink.fade_to_color(0, 'blue')
+    elif p < 0.4:
+        blink.fade_to_color(0, 'green')
+    elif p < 0.6:
+        blink.fade_to_color(0, 'yellow')
+    elif p < 0.8:
+        blink.fade_to_rgb(0, 255, 125, 0)
+    else:
+        blink.fade_to_color(0, 'red')
+    sleep(5)
+
+
+if __name__ == '__main__':
+    try:
+        b = Blink1()
+        blink = b
+        while True:
+            if not Blink1.list():
+                break
+            blink_times(5)
+            load = cpu_load()
+            show(load)
+            blink_times(2)
+            frm = free_memory()
+            show(frm)
+    except Blink1ConnectionFailed:
+        pass

blink/blinkd.service

@@ -0,0 +1,7 @@
+[Unit]
+Description=blinkd
+
+[Service]
+User=it
+Group=edv
+ExecStart=/lib/udev/blinkd.py

install.sh

@@ -112,5 +112,7 @@ install_data misc_systemd_units/named.service            "$DESTDIR$systemdunitdi
 install_data misc_systemd_units/tonerlow-cupsd.service   "$DESTDIR$systemdunitdir/tonerlow-cupsd.service"
 install_data misc_systemd_units/baucamhttpd.service      "$DESTDIR$systemdunitdir/baucamhttpd.service"
 install_data misc_systemd_units/getcams.service          "$DESTDIR$systemdunitdir/getcams.service"
-
+install_exec blink/blinkd.py                             "$DESTDUR$udev_helperdir/blinkd.py"
+install_data blink/blinkd.service                        "$DESTDIR$systemdunitdir/blinkd.service"
+install_data blink/51-blink.rules                        "$DESTDIR$udev_rulesdir/51-blink.rules"
 exit