port startup and shutdown scripts from Light-Meter repo.

auto-start.sh

@@ -1,17 +0,0 @@
-#!/bin/bash
-
-# Auto Start
-# ================================================================
-# This script is used to start the roaming-light-relay controller
-# when the Raspberry Pi is turned on. The main thing is does is
-# activate the projects virtual environment before running the
-# actual program in this project. This file is referenced in
-# /etc/xdg/lxsession/LXDE-pi/autostart. The file just referenced
-# is a Raspbian specific file and I have found it to do what I want
-# better than using crontab -- like traditional Linux set-ups.
-# Refer to your Roaming Light: Project Notes file for more info.
-# IT IS ASSUMED THIS FILE IS IN THE PROJECTS ROOT FOLDER.
-# IT WILL NOT WORK AS INTENDED OUTWISE.
-
-source /home/pi/repos/roaming-light-relay/proj-env/bin/activate
-python3 /home/pi/repos/roaming-light-relay/relay.py

make-log-files.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+# This script creates the log files and the fold they will reside in.
+# This script must be executed before you set-up the start-up and
+# shutdown cron-jobs on the system.
+
+mkdir ~/logs/
+touch ~/logs/startup-logs.txt
+touch ~/logs/shutdown-logs.txt

relay.py

@@ -21,10 +21,12 @@ def main():
             the_reading = data.get("reading")
             # print(the_reading) # For testing.
             if the_reading > 30:
-                print(f"[INFO] Light is on -- {the_reading}.")
+                # Print for testing.
+                # print(f"[INFO] Light is on -- {the_reading}.")
                 GPIO.output(relay_pin, GPIO.HIGH)
             else:
-                print(f"[INFO] Light is off -- {the_reading}.")
+                # Print for testing.
+                # print(f"[INFO] Light is off -- {the_reading}.")
                 GPIO.output(relay_pin, GPIO.LOW)
     except KeyboardInterrupt:
         print("Keyboard Interrupt: quitting program.")

shutdown.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+# Shutdown Script
+# ====================================================================
+# I wrote this script with the intention of using it as part of a
+# cron-job. Before you set up the cron-job, you must make sure you
+# have either ran the "make-log-files.sh" script or created the
+# appropriate log file and folder at the location specified at
+# "logFile" below.
+# As an aside, I usually set-up as alias for "shutdown" called,
+# "powerdown". When I enter "powerdown" into the terminal, this script
+# should run and then the "shutdown" command is ran at the end.
+
+logDate=$(date '+%Y-%m-%dT%TZ')
+logFile="/home/rtrp/logs/shutdown-logs.txt"
+mainURL="http://3.9.19.84/api/status/update" # Make sure this is valid.
+
+getApiUrl () {
+    case $HOSTNAME in
+    	(factory1) apiURL="${mainURL}/1";;
+    	(factory2) apiURL="${mainURL}/2";;
+    	(factory3) apiURL="${mainURL}/3";;
+    	(gallery1) apiURL="${mainURL}/4";;
+    	(gallery2) apiURL="${mainURL}/5";;
+    	(gallery3) apiURL="${mainURL}/6";;
+    esac
+}
+
+logStatusChange () {
+    cat << EOF >> $logFile
+$logDate
+EOF
+}
+
+logStatusChange
+getApiUrl
+curl -X POST --header 'Content-Type: application/json' --header 'Accept: text/html' -d '{"status": "off", "time": "'${logDate}'", "token": "QWERTYuiopasdfghjklzxcvbnm_1234567890"}' "${apiURL}"
+/sbin/shutdown -h now

startup.sh

@@ -0,0 +1,50 @@
+#!/bin/bash  
+
+# Startup Script
+# ====================================================================
+# I wrote this script with the intention of using it to start a
+# cron-job -- when the Raspberry Pi is turned on. Before you set the
+# cron-job up, you must make sure you have either ran the
+# "make-log-files.sh" script or created the appropriate log file and
+# folder at the location specified at "logFile" below.
+# ====
+# Please note: This script calls another (Python) script at the end of
+# it. The code in the Python script (relay.py) is an infinite-loop
+# so you will need to kill it manually or turn-off the  Raspberry Pi.
+# ====
+# I put the "sleep 60" call at the start to reduce any errors
+# occurring because a part of the system (I.E. curl) has not finished
+# loading. 60 seconds is a little excessive but I wrote this script
+# with the expectation of it running on an unmanned Raspberry Pi. So,
+# reliable/consistent behaviour is my preference over "fast start-up
+# times".
+
+sleep 60
+
+logDate=$(date '+%Y-%m-%dT%TZ')
+logFile="/home/rtrp/logs/startup-logs.txt"
+mainURL="http://3.9.19.84/api/status/update" # Make sure this is valid.
+
+getApiUrl () {
+    case $HOSTNAME in
+    	(factory1) apiURL="${mainURL}/1";;
+    	(factory2) apiURL="${mainURL}/2";;
+    	(factory3) apiURL="${mainURL}/3";;
+    	(gallery1) apiURL="${mainURL}/4";;
+    	(gallery2) apiURL="${mainURL}/5";;
+    	(gallery3) apiURL="${mainURL}/6";;
+    esac
+}
+
+logStatusChange () {
+    cat << EOF >> $logFile
+$logDate
+EOF
+}
+
+logStatusChange
+getApiUrl
+
+curl -S -X POST --header 'Content-Type: application/json' --header 'Accept: text/html' -d '{"status": "on", "time": "'${logDate}'", "token": "QWERTYuiopasdfghjklzxcvbnm_1234567890"}' "${apiURL}"
+
+python3 /home/rtrp/repos/relay/relay.py