From 4aef3c63204f7c8fa470301428f52b0307a7d2a7 Mon Sep 17 00:00:00 2001
From: pathmapper <pathmapper@posteo.de>
Date: Sat, 1 Jan 2022 12:51:24 +0100
Subject: [PATCH 1/4] Use md5 hashing for OpenSSL 3

---
 src/cache.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/cache.js b/src/cache.js
index 35e78819..fed60a54 100644
--- a/src/cache.js
+++ b/src/cache.js
@@ -63,10 +63,10 @@ const write = async function (filename, compress, result) {
  * @return {String}
  */
 const filename = function (source, identifier, options) {
-  // md4 hashing is not supported starting with node v17.0.0
-  const majorNodeVersion = parseInt(process.versions.node.split(".")[0], 10);
+  // md4 hashing is not supported starting with OpenSSL v3.0.0
+  const majorOpensslVersion = parseInt(process.versions.openssl.split(".")[0], 10);
   let hashType = "md4";
-  if (majorNodeVersion >= 17) {
+  if (majorOpensslVersion >= 3) {
     hashType = "md5";
   }
 

From 1461df80b5e009bce8c9497cc681e091b602de89 Mon Sep 17 00:00:00 2001
From: pathmapper <pathmapper@posteo.de>
Date: Sat, 1 Jan 2022 13:59:38 +0100
Subject: [PATCH 2/4] Fix lint

---
 src/cache.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/cache.js b/src/cache.js
index fed60a54..6757cbff 100644
--- a/src/cache.js
+++ b/src/cache.js
@@ -64,7 +64,10 @@ const write = async function (filename, compress, result) {
  */
 const filename = function (source, identifier, options) {
   // md4 hashing is not supported starting with OpenSSL v3.0.0
-  const majorOpensslVersion = parseInt(process.versions.openssl.split(".")[0], 10);
+  const majorOpensslVersion = parseInt(
+    process.versions.openssl.split(".")[0],
+    10,
+  );
   let hashType = "md4";
   if (majorOpensslVersion >= 3) {
     hashType = "md5";

From ba921159211569c040b011336aba3b3bcfeec363 Mon Sep 17 00:00:00 2001
From: pathmapper <pathmapper@posteo.de>
Date: Sat, 1 Jan 2022 17:47:43 +0100
Subject: [PATCH 3/4] Use 'md5' hashing if 'md4' could not be created

---
 src/cache.js | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/src/cache.js b/src/cache.js
index 6757cbff..9a59e461 100644
--- a/src/cache.js
+++ b/src/cache.js
@@ -63,13 +63,11 @@ const write = async function (filename, compress, result) {
  * @return {String}
  */
 const filename = function (source, identifier, options) {
-  // md4 hashing is not supported starting with OpenSSL v3.0.0
-  const majorOpensslVersion = parseInt(
-    process.versions.openssl.split(".")[0],
-    10,
-  );
   let hashType = "md4";
-  if (majorOpensslVersion >= 3) {
+
+  try {
+    crypto.createHash(hashType);
+  } catch (err) {
     hashType = "md5";
   }
 

From e8e5932594cbe1e35b6408bd609800570f026e31 Mon Sep 17 00:00:00 2001
From: pathmapper <pathmapper@posteo.de>
Date: Fri, 7 Jan 2022 07:11:30 +0100
Subject: [PATCH 4/4] Move hash detection to top level

---
 src/cache.js | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/cache.js b/src/cache.js
index 9a59e461..29482924 100644
--- a/src/cache.js
+++ b/src/cache.js
@@ -19,6 +19,14 @@ const transform = require("./transform");
 // Lazily instantiated when needed
 let defaultCacheDirectory = null;
 
+let hashType = "md4";
+// use md5 hashing if md4 is not available
+try {
+  crypto.createHash(hashType);
+} catch (err) {
+  hashType = "md5";
+}
+
 const readFile = promisify(fs.readFile);
 const writeFile = promisify(fs.writeFile);
 const gunzip = promisify(zlib.gunzip);
@@ -63,14 +71,6 @@ const write = async function (filename, compress, result) {
  * @return {String}
  */
 const filename = function (source, identifier, options) {
-  let hashType = "md4";
-
-  try {
-    crypto.createHash(hashType);
-  } catch (err) {
-    hashType = "md5";
-  }
-
   const hash = crypto.createHash(hashType);
 
   const contents = JSON.stringify({ source, options, identifier });