From 55cfb3af202a3d9e5c83b6b04cac2a925a9c8acd Mon Sep 17 00:00:00 2001
From: Yahor Berdnikau <yahor.berdnikau@jetbrains.com>
Date: Mon, 22 Aug 2022 19:40:37 +0200
Subject: [PATCH] Remove deprecated GFileUtils usage

^KT-53615 Fixed
---
 .../tasks/internal/CleanableStoreImpl.kt      | 30 +++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

diff --git a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/tasks/internal/CleanableStoreImpl.kt b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/tasks/internal/CleanableStoreImpl.kt
index 57029757be5..18e167eed4b 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/tasks/internal/CleanableStoreImpl.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/tasks/internal/CleanableStoreImpl.kt
@@ -5,9 +5,12 @@
 
 package org.jetbrains.kotlin.gradle.tasks.internal
 
-import org.gradle.util.GFileUtils
 import java.io.File
+import java.io.FileOutputStream
+import java.io.IOException
+import java.io.UncheckedIOException
 import java.nio.file.Files
+import java.nio.file.attribute.FileTime
 import java.time.Instant
 
 internal class CleanableStoreImpl(dirPath: String) : CleanableStore {
@@ -18,7 +21,7 @@ internal class CleanableStoreImpl(dirPath: String) : CleanableStore {
 
     override fun markUsed() {
         if (dir.exists()) {
-            GFileUtils.touchExisting(dir)
+            touchExisting(dir)
         }
     }
 
@@ -33,4 +36,27 @@ internal class CleanableStoreImpl(dirPath: String) : CleanableStore {
             }
             ?.forEach { file -> file.deleteRecursively() }
     }
+
+    private fun touchExisting(file: File) {
+        try {
+            Files.setLastModifiedTime(file.toPath(), FileTime.fromMillis(System.currentTimeMillis()))
+        } catch (e: IOException) {
+            if (file.isFile && file.length() == 0L) {
+                // On Linux, users cannot touch files they don't own but have write access to
+                // because the JDK uses futimes() instead of futimens() [note the 'n'!]
+                // see https://github.com/gradle/gradle/issues/7873
+                touchFileByWritingEmptyByteArray(file)
+            } else {
+                throw UncheckedIOException("Could not update timestamp for $file", e)
+            }
+        }
+    }
+
+    private fun touchFileByWritingEmptyByteArray(file: File) {
+        try {
+            FileOutputStream(file).use { it.write(ByteArray(0)) }
+        } catch (e: IOException) {
+            throw UncheckedIOException("Could not update timestamp for $file", e)
+        }
+    }
 }
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