From 3edd66d1b030969c0ed0e383b68f185883fd1874 Mon Sep 17 00:00:00 2001
From: Plamen Totev <plamen.iv.totev@gmail.com>
Date: Sun, 12 Apr 2020 18:30:31 +0300
Subject: [PATCH] Add 'latest' as alias for version 'x'

While it is possible to specify that you want the latest JDK version
by using semver X-Ranges (like 'x' for example), 'latest' is more
readable as explicitly states the intention.
---
 README.md        | 2 ++
 src/installer.ts | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/README.md b/README.md
index c7f492b3..7c0e379b 100644
--- a/README.md
+++ b/README.md
@@ -36,6 +36,8 @@ Examples of version specifications that the java-version parameter will accept:
   
   e.g. ```8.0.x, >11.0.3, >=13.0.1, <8.0.212```
   
+  e.g. ```latest``` (same as ```x```)
+
 - An early access (EA) Java version
 
   e.g. ```14-ea, 15-ea```
diff --git a/src/installer.ts b/src/installer.ts
index cce8fa3d..e34393d4 100644
--- a/src/installer.ts
+++ b/src/installer.ts
@@ -271,6 +271,12 @@ function getDownloadInfo(
 }
 
 function normalizeVersion(version: string): string {
+  // 'latest' means the most recent of any JDK version
+  // semver won't match pre-release versions
+  if (version === 'latest') {
+    version = 'x';
+  }
+
   if (version.slice(0, 2) === '1.') {
     // Trim leading 1. for versions like 1.8
     version = version.slice(2);