From 475ea1e8eb86ece1a0d5eac1d89e42ed5feb8fa0 Mon Sep 17 00:00:00 2001
From: Danilo Britto <dbritto.dev@gmail.com>
Date: Fri, 5 Jul 2024 21:26:44 -0500
Subject: [PATCH] Minor updates

---
 README.md    | 18 +++++++++++------
 package.json |  4 ++--
 src/index.ts | 56 ++++++++++++++++++++++++++++++++++++----------------
 3 files changed, 53 insertions(+), 25 deletions(-)

diff --git a/README.md b/README.md
index cad0287..54ec5d1 100644
--- a/README.md
+++ b/README.md
@@ -1,13 +1,13 @@
 # npm-ri
 
-npm install using regular expression
+npm install using regular expression to update installed packages
 
 # Usage
 
-## Basic (by default version is "latest")
+## Basic (by default package version is "latest")
 
 ```sh
-npx npm-ri "<regex>"
+npx npm-ri "<dependecy-name-regex>"
 ```
 
 ### Example
@@ -19,11 +19,17 @@ npx npm-ri "@radix-ui/.*"
 ## With custom version
 
 ```sh
-npx npm-ri "<regex>" -v <version>
+npx npm-ri "<regex>" --dependency-version <dependency-version>
 ```
 
-### Example 
+or
 
 ```sh
-npx npm-ri "@tanstack/.*" -v beta
+npx npm-ri "<regex>" -dv <dependency-version>
+```
+
+### Example
+
+```sh
+npx npm-ri "@tanstack/.*" -dv beta
 ```
diff --git a/package.json b/package.json
index 5b835b9..bc2a9fc 100644
--- a/package.json
+++ b/package.json
@@ -2,8 +2,8 @@
   "type": "module",
   "name": "npm-ri",
   "private": false,
-  "description": "npm install packages using regular expression",
-  "version": "0.0.3",
+  "description": "npm install packages using regular expressions to update installed dependencies",
+  "version": "0.0.4",
   "author": "Danilo Britto",
   "repository": {
     "type": "git",
diff --git a/src/index.ts b/src/index.ts
index e91c439..4cca0a9 100755
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,52 +1,74 @@
 #! /usr/bin/env node
 
+import { cwd } from "node:process";
 import { createRequire } from "node:module";
 import { spawn } from "node:child_process";
 import { program } from "commander";
 
-function run(regex: RegExp, { version }: { version: string }) {
-  const require = createRequire(`${process.cwd()}/`);
+function run(
+  dependencyNameRegex: RegExp,
+  { dependencyVersion, dryRun }: { dependencyVersion: string; dryRun: boolean }
+) {
+  const require = createRequire(`${cwd()}/`);
   const pkg = require("./package.json");
 
   const dependencies = Object.keys(pkg.dependencies || {})
     .concat(Object.keys(pkg.devDependencies || {}))
-    .filter((dependency) => regex.test(dependency))
-    .map((dependency) => `${dependency}@${version}`);
+    .filter((dependency) => dependencyNameRegex.test(dependency))
+    .map((dependency) => `${dependency}@${dependencyVersion}`);
 
   if (dependencies.length > 0) {
+    if (dryRun) {
+      console.info(
+        `The next packages might be updated:\n${dependencies.join("\n")}`
+      );
+
+      return;
+    }
+
     const npmInstall = spawn("npm", ["install"].concat(dependencies));
 
     npmInstall.on("close", (code: number) => {
       if (code === 0) {
         console.info(
-          `The next packages were updated to their latest version:\n${dependencies.join(
-            "\n"
-          )}`
+          `The next packages were updated:\n${dependencies.join("\n")}`
         );
-      } else {
-        console.error("Something went wrong");
+
+        return;
       }
 
-      process.exit(code);
+      throw new Error("Something went wrong");
     });
+
     return;
   }
 
-  console.log(`No packages found with the next regular expression: ${regex}`);
-  process.exit(1);
+  throw new Error(
+    `No packages found with the next regular expressions: ${dependencyNameRegex}`
+  );
 }
 
+program
+  .name("npm-ri")
+  .description(
+    "npm install using regular expressions to update installed dependencies"
+  )
+  .version("0.0.4");
+
 program
   .argument(
-    "<regex>",
-    "regex that will be use to find packages",
-    (value) => new RegExp(value)
+    "<dependency-name-regex>",
+    "regex that will be use to find dependencies",
+    (value) => {
+      return new RegExp(value);
+    }
   )
   .option(
-    "-v, --version <version>",
-    "version that will be use to update packages",
+    "-dv, --dependency-version <dependency-version>",
+    "version that will be use to update dependencies",
     "latest"
   )
+  .option("--dry-run", "do not actually perform updates", false)
   .action(run);
 
 program.parse();