fetch latest version if the info command is run without one

Author: charliegerard

lib/commands/info/index.js

@@ -2,6 +2,7 @@
 
 import chalk from 'chalk'
 import meow from 'meow'
+import fetch from 'node-fetch'
 import ora from 'ora'
 
 import { outputFlags, validationFlags } from '../../flags/index.js'
@@ -47,9 +48,9 @@ export const info = {
  * @param {string} description
  * @param {readonly string[]} argv
  * @param {ImportMeta} importMeta
- * @returns {void|CommandContext}
+ * @returns {Promise<void|CommandContext>}
  */
-function setupCommand (name, description, argv, importMeta) {
+async function setupCommand (name, description, argv, importMeta) {
   const flags = {
     ...outputFlags,
     ...validationFlags,
@@ -92,15 +93,24 @@ function setupCommand (name, description, argv, importMeta) {
 
   const versionSeparator = rawPkgName.lastIndexOf('@')
 
+  let pkgVersion, pkgName
   if (versionSeparator < 1) {
-    throw new InputError('Need to specify a full package identifier, like eg: [email protected]')
-  }
-
-  const pkgName = rawPkgName.slice(0, versionSeparator)
-  const pkgVersion = rawPkgName.slice(versionSeparator + 1)
-
-  if (!pkgVersion) {
-    throw new InputError('Need to specify a version, like eg: [email protected]')
+    // Get the latest version
+    try {
+      pkgName = rawPkgName
+      const response = await fetch(`https://registry.npmjs.org/${rawPkgName}/latest`)
+      /** @type any */
+      const packageDetails = await response.json() || null
+
+      if (packageDetails?.version) {
+        pkgVersion = packageDetails.version
+      }
+    } catch (e) {
+      throw new Error('Issue fetching package version')
+    }
+  } else {
+    pkgName = rawPkgName.slice(0, versionSeparator)
+    pkgVersion = rawPkgName.slice(versionSeparator + 1)
   }
 
   return {

package-lock.json

@@ -91,6 +91,7 @@
     "is-interactive": "^2.0.0",
     "is-unicode-supported": "^1.3.0",
     "meow": "^12.0.1",
+    "node-fetch": "^3.3.2",
     "ora": "^6.1.2",
     "pony-cause": "^2.1.8",
     "prompts": "^2.4.2",