backupModificationTimesOfMusic

#!/bin/bash
find . -iname "*.mp3*" -o -iname "*.flac*" -o -iname "*.aif*" -o -iname "*.wav*" -o -iname "*.mp4*" -o -iname "*.ogg*" | while read filename; 
do 
IFS=$'\n' printf "\ntouch -t $(stat -f "%Sm" -t "%Y%m%d%H%M" "$filename") \"$filename\"";
#printf "\ntouch -t  \"$filename\"";
done; 
printf "\n";


Object.defineProperty(Date.prototype, 'YYYYMMDDHHMMSS', {
    value: function() {
        function pad2(n) {  // always returns a string
            return (n < 10 ? '0' : '') + n;
        }

        return this.getFullYear() +
               pad2(this.getMonth() + 1) + 
               pad2(this.getDate()) +
               pad2(this.getHours()) +
               pad2(this.getMinutes()) +
               pad2(this.getSeconds());
    }
});


var path="/Users/thomash/";
var filePath=path+"modifiedDateBackup"
# fs.writeFile(filePath,"");

var fs=require("fs");

var s="";
filewalker(path).on("file",(filename,info) => {
 if (
     filename.toLowerCase().endsWith(".mp3") || 
     filename.toLowerCase().endsWith(".wav") || 
     filename.toLowerCase().endsWith(".aif") || 
     filename.toLowerCase().endsWith(".flac")||
     filename.toLowerCase().endsWith(".aiff") || 
     filename.toLowerCase().endsWith(".mp4")) { 
  var date = new Date(info.mtime).YYYYMMDDHHMMSS();
  s += date+" "+filename+"\n";
 }
}).on("error", e=>console.error("error",e)).on("done",()=> fs.writeFileSync(filePath,s)).walk();


var s = fs.readFileSync(filePath).toString();

s.split("\n").forEach(line => {
    var spit=line.split(" ");
    var date = spit.shift(); 
    var file = spit.join(" ");

    if (line.trim().length === 0)
        return;
    var formattedDate = new Date(date[0]+date[1]+date[2]+date[3]+" "+date[4]+date[5]+" "+date[6]+date[7]+" "+date[8]+date[9]+":"+date[10]+date[11]);
    console.log("datefile",{date,file,formattedDate});
    try {
        console.log("line",line);
        console.log("modifying ",path+file, formattedDate);
       fs.utimesSync(path+file, formattedDate, formattedDate);
    } catch (e) {
        console.error("err",e);
    }
})