folder monitor/ file creation...

banbutcher

Hi folks,

i was just wondering if its possible to have a module that monitors a folder for new files/downloads and prints the last say 5 or 10 results on the mirror?

many thanks,
Richie

sdetweil

@banbutcher sure in the node_helper you woudl use the fs.watch() function to watch for files in a directory
and it will call the routine when files are added or deleted

i use this i one of my modules

	// watch for a file to appear in the folder
					fs.watch(self.config.detectionDir, (eventType, filename) => {
						if (filename) {
                                                }
                                         }

then when the file arrives, you would sendsocketNotification up to the module.js to display it

you could use my sample module
https://github.com/sdetweil/SampleModule

and use the code above instead of checking for the configured message and have your idea running a few minutes

banbutcher

@sdetweil thanks for the reply, unfortunately all that is a little bit above my head atm, any chance you’d have a link or some info on how to implement the code?

Richie

sdetweil

@banbutcher sorry, nothing more than what I have already given…

look up fs.watch() (its just a google search away)

and then u have to understand how modules work, read the doc and look at my sample.

i could clarify the code from before

fs.watch(folder_name, 
        callback_function(eventType, filename) {
	    if (filename) {
            }
        }
)

banbutcher

@sdetweil

i have it partly working… i have the contents displaying on my mirror but its all showing up on one line, how can i display it with each line break as in txt file?
deluge.js:

Module.register("deluge",{
	defaults: {
		updateInterval: 30 * 60 * 1000 //reads the file every 30 mins
	},

	start: function(){
		this.sendSocketNotification("START", this.config);
	},

	socketNotificationReceived: function(notification, payload) {
		if(notification === "DATA"){
			this.dataFile = payload;
			this.updateDom();
		}
	},

	getDom: function(){
		var wrapper = document.createElement("div");
		if(this.dataFile){
			wrapper.innerHTML = this.dataFile;
		} else {
			wrapper.innerHTML = "No data";
		}
		return wrapper;
	}
});

and my node helper.js

const NodeHelper = require("node_helper");
const fs= require("fs");

module.exports = NodeHelper.create({
//here comes the part of the nodehelper after the 3 dots as posted above

	socketNotificationReceived: function(notification, payload) {
		if(notification === "START"){
			this.config = payload;
			this.readData();
    			setInterval(() => {
        			this.readData();
    			}, this.config.updateInterval);
		}
	},

	readData: function(){
		//to read a file to do the following
		fs.readFile("new-tv-list.txt", "utf8", (err, data) => {
			if (err) throw err;
			this.sendSocketNotification("DATA", data);
		});
	}
});

thanks

sdetweil

@banbutcher said in folder monitor/ file creation...:

  if(this.dataFile){
  	wrapper.innerHTML = this.dataFile;
  } else {
  	wrapper.innerHTML = "No data";
  }

if the content you are injecting in NOT html, then you should use innerText…
it might recognize the line ends as such… they are not line ends in html

if the innerText doesn’t work, then u will have to convert the line ends t html line breaks
replace '\n\ with ‘
’

note that html is NOT UTF 8

banbutcher

here is the script that im using to retreve file names…

#!/bin/bash

TARGET=/media/TheVault/UnWatched/
PROCESSED=/media/TheVault/Torrentopia/Torrent-Files/

inotifywait -m -e create -e moved_to -r --format "%f" $TARGET \
        | while read FILENAME
                do
                        echo Detected $FILENAME, Adding to list...
                        echo $FILENAME | cat - $PROCESSED/new-tv-list.txt > temp && mv temp $PROCESSED/new-tv-list.txt
#                        echo $FILENAME `date` >> $PROCESSED/new-tv-list.txt
			cp $PROCESSED/new-tv-list.txt /home/pi/MagicMirror/new-tv-list.txt

                done

if i take out the utf8 part i get an [object array buffer] instead of my file names…

banbutcher

@banbutcher

so i put back in the utf8 and then added <br /> after i echo the filename and now its working fine now, i need to tweek it more to suit my needs but so far so good! thanks for your help @sdetweil im sure ill be asking more silly questions again soon!

sdetweil

@banbutcher said in folder monitor/ file creation...:

ill be asking more silly questions

no such thing… ask away…

sdetweil

@banbutcher you can also convert the buffer to a string

buffer_object.toString()