From f9ced79703172fdfd6328b8770aafab438e2960b Mon Sep 17 00:00:00 2001
From: Salman Muin Kayser Chishti <salmanmkc@github.com>
Date: Fri, 8 Aug 2025 03:46:42 +0100
Subject: [PATCH 01/14] custom readlink implementation for Windows
 compatibility with trailing backslashes

---
 src/io-util.ts | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/src/io-util.ts b/src/io-util.ts
index fd3a3e1..4207e07 100644
--- a/src/io-util.ts
+++ b/src/io-util.ts
@@ -8,7 +8,6 @@ export const {
   mkdir,
   open,
   readdir,
-  readlink,
   rename,
   rm,
   rmdir,
@@ -18,6 +17,28 @@ export const {
 } = fs.promises
 // export const {open} = 'fs'
 export const IS_WINDOWS = process.platform === 'win32'
+
+/**
+ * Custom implementation of readlink to ensure Windows directory symlinks
+ * maintain trailing backslash for backward compatibility with Node.js < 24
+ */
+export async function readlink(fsPath: string): Promise<string> {
+  const result = await fs.promises.readlink(fsPath);
+  
+  // Only on Windows, ensure directory symlinks end with a backslash
+  if (IS_WINDOWS) {
+    try {
+      const stats = await fs.promises.lstat(result);
+      if (stats.isDirectory() && !result.endsWith('\\')) {
+        return `${result}\\`;
+      }
+    } catch (err) {
+      // If we can't access the target, just return the original result
+    }
+  }
+  
+  return result;
+}
 // See https://github.com/nodejs/node/blob/d0153aee367422d0858105abec186da4dff0a0c5/deps/uv/include/uv/win.h#L691
 export const UV_FS_O_EXLOCK = 0x10000000
 export const READONLY = fs.constants.O_RDONLY

From a75fb858fcafed26a7906af9ed1c7865930e2697 Mon Sep 17 00:00:00 2001
From: Salman Muin Kayser Chishti <salmanmkc@github.com>
Date: Fri, 8 Aug 2025 04:02:29 +0100
Subject: [PATCH 02/14] fix lint errors

---
 src/io-util.ts | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/io-util.ts b/src/io-util.ts
index 4207e07..67bae80 100644
--- a/src/io-util.ts
+++ b/src/io-util.ts
@@ -23,21 +23,21 @@ export const IS_WINDOWS = process.platform === 'win32'
  * maintain trailing backslash for backward compatibility with Node.js < 24
  */
 export async function readlink(fsPath: string): Promise<string> {
-  const result = await fs.promises.readlink(fsPath);
-  
+  const result = await fs.promises.readlink(fsPath)
+
   // Only on Windows, ensure directory symlinks end with a backslash
   if (IS_WINDOWS) {
     try {
-      const stats = await fs.promises.lstat(result);
+      const stats = await fs.promises.lstat(result)
       if (stats.isDirectory() && !result.endsWith('\\')) {
-        return `${result}\\`;
+        return `${result}\\`
       }
     } catch (err) {
       // If we can't access the target, just return the original result
     }
   }
-  
-  return result;
+
+  return result
 }
 // See https://github.com/nodejs/node/blob/d0153aee367422d0858105abec186da4dff0a0c5/deps/uv/include/uv/win.h#L691
 export const UV_FS_O_EXLOCK = 0x10000000

From b1d6844613de5bb606001a80e9b6c0586a77d5ad Mon Sep 17 00:00:00 2001
From: Salman Muin Kayser Chishti <salmanmkc@github.com>
Date: Thu, 4 Sep 2025 12:41:43 +0100
Subject: [PATCH 03/14] remove engines 24 reuqirement from toolkit and fix test

---
 __tests__/io.test.ts | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/__tests__/io.test.ts b/__tests__/io.test.ts
index c05be13..87f7c7b 100644
--- a/__tests__/io.test.ts
+++ b/__tests__/io.test.ts
@@ -643,9 +643,10 @@ describe('rmRF', () => {
       })
     ).toBe('test file content')
     if (os.platform() === 'win32') {
-      expect(await fs.readlink(symlinkLevel2Directory)).toBe(
-        `${symlinkDirectory}\\`
-      )
+      // Node.js 24 changed behavior - fs.readlink no longer includes trailing backslash
+      // Accept both formats for compatibility
+      const linkPath = await fs.readlink(symlinkLevel2Directory)
+      expect(linkPath.replace(/\\+$/, '')).toBe(symlinkDirectory.replace(/\\+$/, ''))
     } else {
       expect(await fs.readlink(symlinkLevel2Directory)).toBe(symlinkDirectory)
     }

From c0f1f88ea72a99736a4500acc79acd794a504b42 Mon Sep 17 00:00:00 2001
From: Salman Muin Kayser Chishti <salmanmkc@github.com>
Date: Thu, 4 Sep 2025 14:16:27 +0100
Subject: [PATCH 04/14] Bump package versions, and fix issues

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index e8c8d8f..f0be120 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@actions/io",
-  "version": "1.1.3",
+  "version": "2.0.0",
   "description": "Actions io lib",
   "keywords": [
     "github",

From 3b96811006b056b9e0ce1ded33145017a82b63b6 Mon Sep 17 00:00:00 2001
From: Salman Muin Kayser Chishti <salmanmkc@github.com>
Date: Thu, 4 Sep 2025 15:15:02 +0100
Subject: [PATCH 05/14] package updates

---
 package-lock.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index e7152dc..548a504 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@actions/io",
-  "version": "1.1.3",
+  "version": "2.0.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@actions/io",
-      "version": "1.1.3",
+      "version": "2.0.0",
       "license": "MIT"
     }
   }

From 3800294253382a51ba9c6642d7b1de1299b601ef Mon Sep 17 00:00:00 2001
From: Salman Muin Kayser Chishti <salmanmkc@github.com>
Date: Thu, 4 Sep 2025 15:24:57 +0100
Subject: [PATCH 06/14] linting

---
 __tests__/io.test.ts | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/__tests__/io.test.ts b/__tests__/io.test.ts
index 87f7c7b..0fcab0d 100644
--- a/__tests__/io.test.ts
+++ b/__tests__/io.test.ts
@@ -646,7 +646,9 @@ describe('rmRF', () => {
       // Node.js 24 changed behavior - fs.readlink no longer includes trailing backslash
       // Accept both formats for compatibility
       const linkPath = await fs.readlink(symlinkLevel2Directory)
-      expect(linkPath.replace(/\\+$/, '')).toBe(symlinkDirectory.replace(/\\+$/, ''))
+      expect(linkPath.replace(/\\+$/, '')).toBe(
+        symlinkDirectory.replace(/\\+$/, '')
+      )
     } else {
       expect(await fs.readlink(symlinkLevel2Directory)).toBe(symlinkDirectory)
     }
@@ -1202,9 +1204,8 @@ describe('which', () => {
       const originalPath = process.env['PATH']
       try {
         // modify PATH
-        process.env[
-          'PATH'
-        ] = `${process.env['PATH']}${path.delimiter}${testPath}`
+        process.env['PATH'] =
+          `${process.env['PATH']}${path.delimiter}${testPath}`
 
         // find each file
         for (const fileName of Object.keys(files)) {
@@ -1275,9 +1276,8 @@ describe('which', () => {
       await fs.writeFile(notExpectedFilePath, '')
       const originalPath = process.env['PATH']
       try {
-        process.env[
-          'PATH'
-        ] = `${process.env['PATH']}${path.delimiter}${testPath}`
+        process.env['PATH'] =
+          `${process.env['PATH']}${path.delimiter}${testPath}`
         expect(await io.which(fileName)).toBe(expectedFilePath)
       } finally {
         process.env['PATH'] = originalPath
@@ -1439,9 +1439,8 @@ describe('findInPath', () => {
     try {
       // update the PATH
       for (const testPath of testPaths) {
-        process.env[
-          'PATH'
-        ] = `${process.env['PATH']}${path.delimiter}${testPath}`
+        process.env['PATH'] =
+          `${process.env['PATH']}${path.delimiter}${testPath}`
       }
       // exact file names
       expect(await io.findInPath(fileName)).toEqual(filePaths)

From 43b289ce1ba5e32a138bc525cc4bc046085502b8 Mon Sep 17 00:00:00 2001
From: Salman Muin Kayser Chishti <salmanmkc@github.com>
Date: Thu, 25 Sep 2025 13:03:33 +0100
Subject: [PATCH 07/14] update with dist updates

---
 package-lock.json | 2 +-
 package.json      | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 548a504..ddd87ac 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,7 +1,7 @@
 {
   "name": "@actions/io",
   "version": "2.0.0",
-  "lockfileVersion": 2,
+  "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
diff --git a/package.json b/package.json
index f0be120..455c16c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@actions/io",
-  "version": "2.0.0",
+  "version": "1.1.4",
   "description": "Actions io lib",
   "keywords": [
     "github",
@@ -33,5 +33,8 @@
   },
   "bugs": {
     "url": "https://github.com/actions/toolkit/issues"
+  },
+  "overrides": {
+    "uri-js": "npm:uri-js-replace@^1.0.1"
   }
 }

From 1c6a8c12193b6abb5556b5a4ce0f2b84324baab6 Mon Sep 17 00:00:00 2001
From: Salman Muin Kayser Chishti <salmanmkc@github.com>
Date: Thu, 25 Sep 2025 18:06:28 +0100
Subject: [PATCH 08/14] update some version numbers, will revise in a bit

---
 package-lock.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index ddd87ac..38bcadc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@actions/io",
-  "version": "2.0.0",
+  "version": "1.1.4",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@actions/io",
-      "version": "2.0.0",
+      "version": "1.1.4",
       "license": "MIT"
     }
   }

From 81a88c4caa05a6a460eb9092d6c5de5ef3215fe7 Mon Sep 17 00:00:00 2001
From: Salman Muin Kayser Chishti <salmanmkc@github.com>
Date: Thu, 25 Sep 2025 18:59:39 +0100
Subject: [PATCH 09/14] Update package versions

---
 package-lock.json | 4 ++--
 package.json      | 5 +----
 2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 38bcadc..1df8ee9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@actions/io",
-  "version": "1.1.4",
+  "version": "1.1.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@actions/io",
-      "version": "1.1.4",
+      "version": "1.1.3",
       "license": "MIT"
     }
   }
diff --git a/package.json b/package.json
index 455c16c..e8c8d8f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@actions/io",
-  "version": "1.1.4",
+  "version": "1.1.3",
   "description": "Actions io lib",
   "keywords": [
     "github",
@@ -33,8 +33,5 @@
   },
   "bugs": {
     "url": "https://github.com/actions/toolkit/issues"
-  },
-  "overrides": {
-    "uri-js": "npm:uri-js-replace@^1.0.1"
   }
 }

From 2eaa9c1bb6aeafa1b5976512694f8d7b078de69e Mon Sep 17 00:00:00 2001
From: Salman Muin Kayser Chishti <salmanmkc@github.com>
Date: Wed, 15 Oct 2025 14:42:03 +0100
Subject: [PATCH 10/14] update io utils

---
 package-lock.json | 4 ++--
 package.json      | 2 +-
 src/io-util.ts    | 3 ++-
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 1df8ee9..ddd87ac 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@actions/io",
-  "version": "1.1.3",
+  "version": "2.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@actions/io",
-      "version": "1.1.3",
+      "version": "2.0.0",
       "license": "MIT"
     }
   }
diff --git a/package.json b/package.json
index e8c8d8f..f0be120 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@actions/io",
-  "version": "1.1.3",
+  "version": "2.0.0",
   "description": "Actions io lib",
   "keywords": [
     "github",
diff --git a/src/io-util.ts b/src/io-util.ts
index 67bae80..7cd42b8 100644
--- a/src/io-util.ts
+++ b/src/io-util.ts
@@ -28,7 +28,8 @@ export async function readlink(fsPath: string): Promise<string> {
   // Only on Windows, ensure directory symlinks end with a backslash
   if (IS_WINDOWS) {
     try {
-      const stats = await fs.promises.lstat(result)
+      // Use stat on the target to check if it's a directory (result is already resolved)
+      const stats = await fs.promises.stat(result)
       if (stats.isDirectory() && !result.endsWith('\\')) {
         return `${result}\\`
       }

From 43378414278309b959d736acae8ca9c8dac5ef6e Mon Sep 17 00:00:00 2001
From: Salman Muin Kayser Chishti <salmanmkc@github.com>
Date: Wed, 15 Oct 2025 17:25:34 +0100
Subject: [PATCH 11/14] change back to lstat

---
 src/io-util.ts | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/io-util.ts b/src/io-util.ts
index 7cd42b8..67bae80 100644
--- a/src/io-util.ts
+++ b/src/io-util.ts
@@ -28,8 +28,7 @@ export async function readlink(fsPath: string): Promise<string> {
   // Only on Windows, ensure directory symlinks end with a backslash
   if (IS_WINDOWS) {
     try {
-      // Use stat on the target to check if it's a directory (result is already resolved)
-      const stats = await fs.promises.stat(result)
+      const stats = await fs.promises.lstat(result)
       if (stats.isDirectory() && !result.endsWith('\\')) {
         return `${result}\\`
       }

From c94b26a5a1ac7bcf0c322b41e4f7ff82c6171590 Mon Sep 17 00:00:00 2001
From: Salman Muin Kayser Chishti <salmanmkc@github.com>
Date: Thu, 16 Oct 2025 13:52:43 +0100
Subject: [PATCH 12/14] Update based on testing to add trailing back slash to
 all results

---
 src/io-util.ts | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/src/io-util.ts b/src/io-util.ts
index 67bae80..31391e3 100644
--- a/src/io-util.ts
+++ b/src/io-util.ts
@@ -19,22 +19,23 @@ export const {
 export const IS_WINDOWS = process.platform === 'win32'
 
 /**
- * Custom implementation of readlink to ensure Windows directory symlinks
+ * Custom implementation of readlink to ensure Windows junctions
  * maintain trailing backslash for backward compatibility with Node.js < 24
+ * 
+ * In Node.js 20, Windows junctions (directory symlinks) always returned paths
+ * with trailing backslashes. Node.js 24 removed this behavior, which breaks
+ * code that relied on this format for path operations.
+ * 
+ * This implementation restores the Node 20 behavior by adding a trailing
+ * backslash to all junction results on Windows.
  */
 export async function readlink(fsPath: string): Promise<string> {
   const result = await fs.promises.readlink(fsPath)
 
-  // Only on Windows, ensure directory symlinks end with a backslash
-  if (IS_WINDOWS) {
-    try {
-      const stats = await fs.promises.lstat(result)
-      if (stats.isDirectory() && !result.endsWith('\\')) {
-        return `${result}\\`
-      }
-    } catch (err) {
-      // If we can't access the target, just return the original result
-    }
+  // On Windows, restore Node 20 behavior: add trailing backslash to all results
+  // since junctions on Windows are always directory links
+  if (IS_WINDOWS && !result.endsWith('\\')) {
+    return `${result}\\`
   }
 
   return result

From 57b47652382e5378c5e712cb2afc6528795d6a39 Mon Sep 17 00:00:00 2001
From: Salman Muin Kayser Chishti <salmanmkc@github.com>
Date: Thu, 16 Oct 2025 14:27:39 +0100
Subject: [PATCH 13/14] spacing

---
 src/io-util.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/io-util.ts b/src/io-util.ts
index 31391e3..6aa4b64 100644
--- a/src/io-util.ts
+++ b/src/io-util.ts
@@ -40,6 +40,7 @@ export async function readlink(fsPath: string): Promise<string> {
 
   return result
 }
+
 // See https://github.com/nodejs/node/blob/d0153aee367422d0858105abec186da4dff0a0c5/deps/uv/include/uv/win.h#L691
 export const UV_FS_O_EXLOCK = 0x10000000
 export const READONLY = fs.constants.O_RDONLY

From 2e2139d8fbbbc6f89a2d57b8e5a068b5d4482ef6 Mon Sep 17 00:00:00 2001
From: Salman Muin Kayser Chishti <salmanmkc@github.com>
Date: Thu, 16 Oct 2025 14:34:09 +0100
Subject: [PATCH 14/14] LInt

---
 src/io-util.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/io-util.ts b/src/io-util.ts
index 6aa4b64..d75e64a 100644
--- a/src/io-util.ts
+++ b/src/io-util.ts
@@ -21,11 +21,11 @@ export const IS_WINDOWS = process.platform === 'win32'
 /**
  * Custom implementation of readlink to ensure Windows junctions
  * maintain trailing backslash for backward compatibility with Node.js < 24
- * 
+ *
  * In Node.js 20, Windows junctions (directory symlinks) always returned paths
  * with trailing backslashes. Node.js 24 removed this behavior, which breaks
  * code that relied on this format for path operations.
- * 
+ *
  * This implementation restores the Node 20 behavior by adding a trailing
  * backslash to all junction results on Windows.
  */