svrjs/loghighlight.js

//SVR.JS LOG HIGHLIGHTER

var readline = require("readline");
var process = require("process");

var args = process.argv;
for (var i = (process.argv[0].indexOf("node") > -1 || process.argv[0].indexOf("bun") > -1 ? 2 : 1); i < args.length; i++) {
  if (args[i] == "-h" || args[i] == "--help" || args[i] == "-?" || args[i] == "/h" || args[i] == "/?") {
    console.log("SVR.JS log highlighter usage:");
    console.log("<some process> | node loghighlight.js [-h] [--help] [-?] [/h] [/?]");
    console.log("-h -? /h /? --help    -- Displays help");
    process.exit(0);
  } else {
    console.log("Unrecognized argument: " + args[i]);
    console.log("SVR.JS log highlighter usage:");
    console.log("<some process> | node loghighlight.js [-h] [--help] [-?] [/h] [/?]");
    console.log("-h -? /h /? --help    -- Displays help");
    process.exit(1);
  }
}

var rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
  terminal: false,
  prompt: ''
});
rl.prompt();
rl.on('line', (line) => {
  viewLog([line]);
});

function viewLog(log) {
    if(log[log.length-1] == "") log.pop();
    if(log[0] == "") log.shift();
    for(var i=0;i<log.length;i++) {
      if(log[i].indexOf("SERVER REQUEST MESSAGE") != -1) {
        log[i] = log[i].replace("SERVER REQUEST MESSAGE","\x1b[34m\x1b[1mSERVER REQUEST MESSAGE\x1b[22m") + "\x1b[37m\x1b[0m";
      } else if(log[i].indexOf("SERVER RESPONSE MESSAGE") != -1) {
        log[i] = log[i].replace("SERVER RESPONSE MESSAGE","\x1b[32m\x1b[1mSERVER RESPONSE MESSAGE\x1b[22m") + "\x1b[37m\x1b[0m";
      } else if(log[i].indexOf("SERVER RESPONSE ERROR MESSAGE") != -1) {
        log[i] = log[i].replace("SERVER RESPONSE ERROR MESSAGE","\x1b[31m\x1b[1mSERVER RESPONSE ERROR MESSAGE\x1b[22m") + "\x1b[37m\x1b[0m";
      } else if(log[i].indexOf("SERVER ERROR MESSAGE") != -1) {
        log[i] = log[i].replace("SERVER ERROR MESSAGE","\x1b[41m\x1b[1mSERVER ERROR MESSAGE\x1b[22m") + "\x1b[40m\x1b[0m";
      } else if(log[i].indexOf("SERVER WARNING MESSAGE") != -1) {
        log[i] = log[i].replace("SERVER WARNING MESSAGE","\x1b[43m\x1b[1mSERVER WARNING MESSAGE\x1b[22m") + "\x1b[40m\x1b[0m";
      } else if(log[i].indexOf("SERVER MESSAGE") != -1) {
        log[i] = log[i].replace("SERVER MESSAGE","\x1b[1mSERVER MESSAGE\x1b[22m");
      }
      console.log(log[i]);
    }
}