Adding detection for files to control the script
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31
main.js
31
main.js
@ -2,6 +2,8 @@
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var gpio = require('rpi-gpio');
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// Module for importing environment variables
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var dotenv = require('dotenv').config();
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// Module for working with files
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var fs = require('fs');
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// Set up GPIO 4 (pysical pin 7) as output, then call cycleAuger()
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gpio.setup(7, gpio.DIR_OUT, cycleAuger);
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@ -44,7 +46,34 @@ function sleep(ms) {
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// Main function, turns the auger on, sleeps for the time given in environment variables, then turns the auger off, sleeps, repeats.
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async function cycleAuger(err) {
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if (err) throw err;
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// TODO: Detect file 'pause', 'reload', 'quit'
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// Check for pause file existing, then sleep for preset time, then run the function again.
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if (fs.existsSync('./pause')) {
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console.log('Paused...');
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await sleep(process.env.PAUSETIME);
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cycleAuger();
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}
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// Check for reload file existing, then reload environment variables, then delete the file.
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if (fs.existsSync('./reload')) {
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dotenv.config({ override: true })
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fs.unlink('./reload', (err) => {
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if (err) throw err;
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console.log('Deleted reload file.');
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});
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console.log('Reloaded environment variables.');
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}
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// Check for quit file existing, then delete it, then quit the program
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if (fs.existsSync('./quit')) {
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fs.unlink('./quit', (err) => {
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if (err) throw err;
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console.log('Removed quit file.');
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});
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console.log('Quitting.');
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process.exit();
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}
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// If none of the above checks are true, cycle the auger on and off, then repeat
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augerOn();
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await sleep(process.env.ONTIME);
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augerOff();
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