From 655cb05195987cc98509c9d014293425433f2676 Mon Sep 17 00:00:00 2001
From: Arthur Baars <arthur@semmle.com>
Date: Wed, 17 Jun 2020 19:37:01 +0200
Subject: [PATCH] Add comment explaining why the environment variable should be
 normalized

---
 dist/index.js    | Bin 169140 -> 169451 bytes
 src/installer.ts |   4 ++++
 2 files changed, 4 insertions(+)

diff --git a/dist/index.js b/dist/index.js
index 36a56bb73bce8868edb84e236002e4167cd11d36..aed138ad17ae55d4664c10766b648384030b303f 100644
GIT binary patch
delta 308
zcmYk0F;2rk5Ji=g?rErg7a@Uj3xue1f$@66ZnWO9X2%Y$Lct9<1)`0_EjR`Z1y^7V
z6rN^AU-SR_=hy1%t$KQ1o!8%o%k37oqUc49nh=9cP^K&?zYs1?8QIGaTS$r%T#-XI
z$iBk=6#vlotd24xvKec>MjIZ2l})LIdB%|1qB~KpvGc6FFDH&XCyuPPjGO=Y(YRRJ
z(>;xJCmmxX4b()2$sZ8E#2KL6M{<l!y+NM3Mq-}9%S=iWqy#IHq#KI8r!;h|!NGY_
Va&v7QgZbiIv|ZKjpNI9w)eqglYU}_2

delta 19
bcmaF8nrq8Su7(!IEllsTwyWhZ9n}N?T8ju(

diff --git a/src/installer.ts b/src/installer.ts
index 7a8feae..29b0d89 100644
--- a/src/installer.ts
+++ b/src/installer.ts
@@ -87,6 +87,10 @@ export async function getJava(
   }
 
   let extendedJavaHome = 'JAVA_HOME_' + version + '_' + arch;
+  // For portability reasons environment variables should only consist of
+  // uppercase letters, digits, and the underscore. Therefore we convert
+  // the extendedJavaHome variable to upper case and replace '.' symbols and
+  // any other non-alphanumeric characters with an underscore.
   extendedJavaHome = extendedJavaHome.toUpperCase().replace(/[^0-9A-Z_]/g, '_');
   core.exportVariable('JAVA_HOME', toolPath);
   core.exportVariable(extendedJavaHome, toolPath);