Add blink udev rules and service

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 +1,52 @@
+#!/usr/bin/env python3
+
+
+from multiprocessing import cpu_count
+from re import findall
+from subprocess import check_call
+from time import sleep
+
+
+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(n):
+    check_call(['blink1-tool', '-t 200', '-m 0', '--blink', str(n), '-q'])
+
+
+def show(p):
+    if p < 0.2:
+        check_call(['blink1-tool', '--blue', '-m 0', '-q'])
+    elif p < 0.4:
+        check_call(['blink1-tool', '--green', '-m 0', '-q'])
+    elif p < 0.6:
+        check_call(['blink1-tool', '--yellow', '-m 0', '-q'])
+    elif p < 0.8:
+        check_call(['blink1-tool', '--rgb', 'FF8800', '-m 0', '-q'])
+    else:
+        check_call(['blink1-tool', '--red', '-m 0', '-q'])
+    sleep(5)
+
+
+if __name__ == '__main__':
+    while True:
+        blink(5)
+        load = cpu_load()
+        show(load)
+        blink(2)
+        frm = free_memory()
+        show(frm)

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