Add version & snapshot to LATEST

Author: Nixinova

changelog.md

@@ -1,6 +1,7 @@
 # Changelog
 
 ## Next
+- Added `release` and `snapshot` to exported object `LATEST` which denotes the latest known released versions.
 - Added basic message when no arguments are given.
 - Changed output of `getVersions` to return `null` instead of `''` when a version is not present.
 - Changed output of `getVersions` to replace '`.x`' with the actual game version.

readme.md

@@ -31,7 +31,8 @@ const packFormat = require('pack-format')
 packFormat('1.14.4') // 4
 packFormat('1.16.2-pre1', 'resource') // 5
 packFormat('20w45a', 'data') // 6
-packFormat.LATEST.data // 39
+packFormat.LATEST.data // 58
+packFormat.LATEST.version // 1.21.2
 ```
 
 Retrieve a list of versions corresponding to a specific `pack_format`, again optionally specifying resource/data pack version.

src/cli.ts

@@ -3,8 +3,11 @@ import { FormatResult } from './types'
 const VERSION = require('../package.json').version
 
 const indent = (n: number): string => ' '.repeat(n * 4)
-const log = function (arg: string, desc: string[], example: string): void {
-    console.log(`\n${indent(1)}pack-format ${arg}`)
+const log = function ([argFull, argShort]: string[], desc: string[], example: string): void {
+    console.log('\n')
+    console.log(`${indent(1)}${argFull}`)
+    if (argShort)
+        console.log(`${indent(1)}${argShort}`)
     for (let i in desc)
         console.log(indent(2) + desc[i])
     console.log(`${indent(3)}Example: ${example}`)
@@ -25,28 +28,42 @@ const ver = args._[0]
 // Print the help message
 if (args.help) {
     log(
-        '<version>',
+        [
+            '<version>',
+        ],
         ['Retrieve the resource and data pack formats of any Minecraft version.'],
         'pack-format 1.16',
     )
     log(
-        '(--data|-d) <version>',
+        [
+            '--data <version>',
+            '-d <version>',
+        ],
         ['Retrieve the data pack format only of the version.'],
         'pack-format --data 20w45a',
     )
     log(
-        '(--resource|-r) <version>',
+        [
+            '--resource <version>',
+            '-r <version>',
+        ],
         ['Retrieve the resource pack format only of the version.'],
         'pack-format --resource 20w45a',
     )
     log(
-        '(--list|-l) [(--data|-d)|(--resource|-r)] <pack_format>',
+        [
+            '--list [--data|--resource] <pack_format>',
+            '-l [-d|-r] <pack_format>',
+        ],
         ['Retrieve a list of versions attached to a specific pack format.', 'Defaults to --resource.'],
         'pack-format --list --data 6',
     )
     log(
-        '(--latest|-L) [(--data|-d)|(--resource|-r)]',
-        ['Retrieve the latest pack formats.'],
+        [
+            '--latest [--data|--resource]',
+            '-L [-d|-r]',
+        ],
+        ['Retrieve the latest pack formats or version information.'],
         'pack-format --latest --resource',
     )
 }
@@ -90,6 +107,7 @@ else if (args.latest) {
     if (!args.data) {
         console.log(`The latest resource pack format version is ${LATEST.resource}.`)
     }
+    console.log(`Data is known up to release ${LATEST.version} / snapshot ${LATEST.snapshot}.`)
 }
 // Print the pack format of a given version
 else if (ver) {

src/index.ts

@@ -123,8 +123,18 @@ const SPECIAL: Record<PackType, Record<number, string[]>> = {
     },
 }
 
+// Find latest release & snapshot version (the one before the placeholder version that has data 'undefined')
+const LATEST_REL = Object.keys(START_RELEASES).reverse().find(ver => !!START_RELEASES[ver as VersionName].data)
+const LATEST_SNAP = Object.keys(START_SNAPSHOTS).reverse().find(ver => !!START_SNAPSHOTS[ver as VersionName].data)
+
 const maxFormat = (type: 'resource' | 'data') => Math.max(...Object.values(START_SNAPSHOTS).map(release => release[type] ?? 0));
-const LATEST = { resource: maxFormat('resource'), data: maxFormat('data') };
+
+const LATEST = {
+    resource: maxFormat('resource'),
+    data: maxFormat('data'),
+    version: LATEST_REL,
+    snapshot: LATEST_SNAP,
+}
 
 /**
  * @param version the version to look up