Better install

README.md

@@ -5,9 +5,7 @@ _Helps locating elements in simple HTML pages_
 ## Installation
 
 ```sh
-git clone https://gitea.tforgione.fr/tforgione/locator
-cd locator
-npm install
+npm install --global git+https://gitea.tforgione.fr/tforgione/locator.git
 ```
 
 ## Usage

index.js

@@ -6,6 +6,12 @@ const puppeteer = require('puppeteer');
 
 async function main() {
 
+    if (process.argv[2] === undefined) {
+        console.error("This program expects an argument.");
+        console.error("USAGE: locator <path-to-HTML-file>");
+        process.exit(1);
+    }
+
     // Path to the HTML file to analyse (given as relative path from current directory)
     // We need the full path so that puppeteer is able to access it
     const path = process.argv[2].startsWith('/') ? process.argv[2] : process.cwd() + '/' + process.argv[2];

package-lock.json

@@ -10,6 +10,9 @@
       "license": "ISC",
       "dependencies": {
         "puppeteer": "^19.7.1"
+      },
+      "bin": {
+        "locator": "index.js"
       }
     },
     "node_modules/@babel/code-frame": {