feat: create CLI utility

Created a CLI utility and handling correctly the configuration via cosmiconfig

.terranextrc

@@ -0,0 +1,15 @@
+{
+  "routes": {
+    "prefix": "",
+    "mappings": [
+      {
+        "page": "/blogPost",
+        "route": "/blog/:url"
+      },
+      {
+        "page": "/contact",
+        "route": "/contact-us"
+      }
+    ]
+  }
+}

README.md

@@ -12,8 +12,6 @@ A plugin to generate terraform configuration from nextjs pages
 [![npm][npm]][npm-url]
 [![Conventional Commits][conventional]][conventional-url]
 
-
-
 ## The reason
 
 Nextjs supports serverless pages, where it creates files that can be used by some lambdas to render the pages.
@@ -40,6 +38,20 @@ yarn add --dev @ematipico/terraform-nextjs-plugin
 
 ## Usage
 
+This library supports [cosmiconfig](https://github.com/davidtheclark/cosmiconfig): you just need to have a file called `terranextrc` that matches the criteria. This repository has [one](./terranextrc).
+
+_At the moment, the library assumes that you already run `next build` inside your project._
+
+### Via CLI
+
+You can use the simple CLI available. At moment you *can't* pass the `routes` parameter, you will need to use the config object or use the [API](#via-api).
+
+Using the CLI will automatically emit the configuration files.
+
+_Arguments passed via CLI will *override* the ones that are defined inside the config file_.
+
+### Via API
+
 ```js
 const { generateResources } = require("@ematipico/terraform-nextjs-plugin");
 

bin/terranext.js

@@ -2,17 +2,57 @@
 "use strict";
 
 const cosmiconfig = require("cosmiconfig");
+const meow = require("meow");
+const { generateResources } = require("../src");
+
 const explorer = cosmiconfig("terranext");
-const terranext = require("../src");
+
+const cli = meow(
+	`
+	Usage
+	  $ terranext
+
+	Options
+	  --gatewayKey, -g  The API Gateway key of the project. Default is "Terranext"
+		--lambdaPath, -p  The path that Terraform CLI has to follow to reach the nextjs project.
+		--write						
+		
+	Examples
+	  $ terranext 
+	  $ terranext --gatewayKey=CustomKey --lambdaPath=../../nextjs-project/
+	  $ terranext -g=CustomKey -p=../../nextjs-project/
+`,
+	{
+		flags: {
+			gatewayKey: {
+				type: "string",
+				default: "Terranext",
+				alias: "g"
+			},
+			lambdaPath: {
+				type: "string",
+				alias: "p",
+				default: "./"
+			}
+		}
+	}
+);
+
 explorer
 	.search()
 	.then(result => {
-		terranext(result.config);
-		// result.config is the parsed configuration object.
-		// result.filepath is the path to the config file that was found.
-		// result.isEmpty is true if there was nothing to parse in the config file.
+		const { gatewayKey, lambdaPath } = cli.flags;
+		const options = {
+			...result.config,
+			gatewayKey,
+			lambdaPath
+		};
+
+		generateResources(options, true);
 	})
-	// eslint-disable-next-line no-unused-vars
 	.catch(error => {
+		// eslint-disable-next-line no-console
+		console.error(error);
+		process.exit(1);
 		// Do something constructive.
 	});