add validations in the input file

index.js

@@ -6,6 +6,7 @@ const fs = require("fs-extra");
 const { DOMParser } = require("xmldom");
 const cliProgress = require("cli-progress");
 var archiver = require("archiver");
+const { isConfigurationJsonValid } = require("./validations");
 
 
 const CSS_FILES_PATTERN = "/**/*.css";
@@ -134,6 +135,11 @@ function createResultsDirectory() {
 
 const run = async () => {
     try {
+
+        const isValid = await isConfigurationJsonValid();
+
+       if(!isValid) return;
+
         configurations = await getConfigurations();
         const { ejbServerComponents, webClientComponents } = configurations;
         // EjbServer

validations.js

@@ -0,0 +1,57 @@
+const fs = require("fs-extra");
+const path = require("path");
+
+async function isConfigurationJsonValid(){
+
+    const configurationsFileLocation =  path.join(__dirname, "configuration.json");
+
+    if(!fs.existsSync(configurationsFileLocation)){
+        console.log(`The configurations.json file is missing`);
+        return false;
+    }
+
+    async function getConfigurations() {
+        const configurations = await fs.readJSON(configurationsFileLocation
+        );
+        return configurations;
+    }
+
+    const errorsMessages = [];
+    const {ejbServerComponents, webClientComponents, skipComponents } = await getConfigurations();
+
+
+
+    if(!webClientComponents){
+        errorsMessages.push(  `The field "webClientComponents" is missing`);
+    }
+
+
+    if(!ejbServerComponents){
+        errorsMessages.push(  `The field "ejbServerComponents" is missing`);
+    }
+
+
+    if(skipComponents && !Array.isArray(skipComponents)){
+        errorsMessages.push(`The field "skipComponents" must be an array of string`);
+    }
+
+    // test paths
+    if(webClientComponents  && !fs.existsSync(webClientComponents)){
+        errorsMessages.push(`The path in "webClientComponents" does not exist`);
+    }
+
+    if(ejbServerComponents  && !fs.existsSync(ejbServerComponents)){
+        errorsMessages.push(`The path in "ejbServerComponents" does not exist`);
+    }
+
+    if(errorsMessages.length){
+        console.error("Errors found:")
+        errorsMessages.forEach( message => {
+            console.error(`* ${message}`);
+        })
+        return false;
+    }
+    return true;
+}
+
+module.exports = { isConfigurationJsonValid };