From f16b1c2d695c5e88fdd6817b05fb238c1ca7a16e Mon Sep 17 00:00:00 2001
From: "Aleksei.Cherepanov" <aleksei.cherepanov@jetbrains.com>
Date: Mon, 19 Jul 2021 18:27:12 +0300
Subject: [PATCH] Add flag to cache storage to reduce number of disk accesses

---
 .../kotlin/incremental/storage/CachingLazyStorage.kt          | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/build-common/src/org/jetbrains/kotlin/incremental/storage/CachingLazyStorage.kt b/build-common/src/org/jetbrains/kotlin/incremental/storage/CachingLazyStorage.kt
index bd5118562b5..1f11945a828 100644
--- a/build-common/src/org/jetbrains/kotlin/incremental/storage/CachingLazyStorage.kt
+++ b/build-common/src/org/jetbrains/kotlin/incremental/storage/CachingLazyStorage.kt
@@ -33,15 +33,19 @@ class CachingLazyStorage<K, V>(
     private val valueExternalizer: DataExternalizer<V>
 ) : LazyStorage<K, V> {
     private var storage: PersistentHashMap<K, V>? = null
+    private var isStorageFileExist = true
 
     private fun getStorageIfExists(): PersistentHashMap<K, V>? {
         if (storage != null) return storage
 
+        if (!isStorageFileExist) return null
+
         if (storageFile.exists()) {
             storage = createMap()
             return storage
         }
 
+        isStorageFileExist = false
         return null
     }