Added systemd unit file

README.md

@@ -15,6 +15,12 @@ sudo emerge -NDuv pyyaml
 sudo cp pyupsmon.yml.example /etc/pyupsmon.yml
 ```
 * Edit the config to your liking using your favourite text editor
+* Install the Python script
+```
+sudo mkdir -p /usr/local/sbin
+sudo cp pyupsmon.py /usr/local/sbin/pyupsmon
+sudo chmod 0755 /usr/local/sbin/pyupsmon
+```
 * Install the `systemd` unit file
 ```
 sudo cp pyupsmon.service /etc/systemd/system

pyupsmon.py

@@ -52,7 +52,7 @@ class ConvertUPS(Serial):
                     if self.shutdownTimeout is None:
                         self.shutdownTimeout = float(cfg['shutdown'].get('timeout', 3600))
                     if self.shutdownCommand is None:
-                        self.shutdownCommand = shlex.split(cfg['shutdown'].get('command', '/sbin/shutdown -h now'))
+                        self.shutdownCommand = shlex.split(cfg['shutdown'].get('command', '/sbin/shutdown -h +2'))
         except OSError:
             if debug:
                 print('Could not read config file %s.' % configfile)
@@ -68,7 +68,7 @@ class ConvertUPS(Serial):
         if self.shutdownTimeout is None:
             self.shutdownTimeout = 3600.0
         if self.shutdownCommand is None:
-            self.shutdownCommand = shlex.split('/sbin/shutdown -h now')
+            self.shutdownCommand = shlex.split('/sbin/shutdown -h +2')
 
         if self.debug:
             print('Configuration:')
@@ -189,12 +189,12 @@ class ConvertUPS(Serial):
 
 
 if __name__ == "__main__":
-    #try:
+    try:
         ups = ConvertUPS()
-    #except:
-    #    print('Error: Could not open UPS serial connection.')
-    #    print('\tCheck the config file!')
-    #    sys.exit(1)
+    except:
+        print('Error: Could not open UPS serial connection.')
+        print('\tCheck the config file!')
+        sys.exit(1)
 
     if not ups.upsInit():
         print('Error: Could not initialize UPS.')
@@ -204,7 +204,9 @@ if __name__ == "__main__":
         (toggled, onBatt) = ups.powerToggled()
         if toggled:
             if onBatt:
+                print('UPS AC power loss. Starting shutdown timer.')
                 ups.startShutdownTimer()
             if not onBatt:
+                print('UPS AC power restored. Cancelling shutdown timer.')
                 ups.cancelShutdownTimer()
         sleep(ups.interval)

pyupsmon.service

@@ -0,0 +1,10 @@
+[Unit]
+Description=Python3 UPS Monitor
+Documentation=https://git.iwm-tuebingen.de/tkurbad/pyupsmon
+
+[Service]
+Type=simple
+ExecStart=/usr/local/sbin/pyupsmon
+
+[Install]
+WantedBy=multi-user.target