Calculate size script optimized

package.json

@@ -62,7 +62,7 @@
     "babel-preset-stage-3": "6.24.1",
     "babel-register": "6.26.0",
     "bignumber.js": "5.0.0",
-    "chalk": "^2.4.1",
+    "chalk": "^2.4.2",
     "coveralls": "^3.0.1",
     "ethereumjs-testrpc": "^6.0.3",
     "ethers": "^4.0.7",
@@ -90,7 +90,7 @@
     "ganache-cli": "^6.2.4",
     "mocha-junit-reporter": "^1.18.0",
     "prettier": "^1.15.3",
-    "prettier-plugin-solidity-refactor": "^1.0.0-alpha.10",
+    "table": "^5.2.3",
     "sol-merger": "^0.1.2",
     "solidity-coverage": "^0.5.11",
     "solidity-docgen": "^0.1.0",

scripts/calculateSize.js

@@ -1,28 +1,35 @@
 const fs = require("fs");
 const path = require("path");
-var size = new Array();
+const exec = require('child_process').execSync;
+const chalk = require('chalk');
+const { table }  = require("table");
 
-function readFiles() {
+async function readFiles() {
     if (fs.existsSync("./build/contracts/")) {
-        let files = fs.readdirSync("./build/contracts/");
-        return files;
+        return fs.readdirSync("./build/contracts/");
     } else {
-        console.log("Directory doesn't exists");
+        console.log('Compiling contracts. This may take a while, please wait.');
+        exec('truffle compile');
+        return fs.readdirSync("./build/contracts/");
     }
 }
 
 async function printSize() {
-    let files = readFiles();
+    let files = await readFiles();
+    console.log(`NOTE- Maximum size of contracts allowed to deloyed on the Ethereum mainnet is 24 KB(EIP170)`);
+    console.log(`---- Size of the contracts ----`);
+    let dataTable = [['Contracts', 'Size in KB']];
     files.forEach(item => {
         let content = JSON.parse(fs.readFileSync(`./build/contracts/${item}`).toString()).deployedBytecode;
         let sizeInKB = content.toString().length / 2 / 1024;
-        size.push(sizeInKB);
+        if (sizeInKB > 24)
+            dataTable.push([chalk.red(path.basename(item, ".json")),chalk.red(sizeInKB)]);
+        else if (sizeInKB > 20)
+            dataTable.push([chalk.yellow(path.basename(item, ".json")),chalk.yellow(sizeInKB)]);
+        else
+            dataTable.push([chalk.green(path.basename(item, ".json")),chalk.green(sizeInKB)]);
     });
-    console.log(`NOTE- Maximum size of contracts allowed to deloyed on the Ethereum mainnet is 24 KB(EIP170)`);
-    console.log(`---- Size of the contracts ----`);
-    for (let i = 0; i < files.length; i++) {
-        console.log(`${path.basename(files[i], ".json")} -  ${size[i]} KB`);
-    }
+    console.log(table(dataTable));
 }
 
 printSize();