[Gradle, JS] Extract YarnEntryRegistry to upper level

- Remove copypaste with version prefixes

#KT-37207 fixed

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/yarn/YarnBasics.kt

@@ -5,7 +5,6 @@
 
 package org.jetbrains.kotlin.gradle.targets.js.yarn
 
-import com.github.gundy.semver4j.SemVer
 import org.gradle.api.Project
 import org.jetbrains.kotlin.gradle.internal.execWithProgress
 import org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsRootPlugin
@@ -143,46 +142,3 @@ abstract class YarnBasics : NpmApi {
         }
     }
 }
-
-private class YarnEntryRegistry(private val lockFile: File) {
-    val entryMap = YarnLock.parse(lockFile)
-        .entries
-        .associateBy { it.dependencyKey }
-
-    fun find(packageKey: String, version: String): YarnLock.Entry {
-        val key = dependencyKey(packageKey, version)
-        var entry = entryMap[key]
-
-        if (entry == null && version == "*") {
-            val searchKey = dependencyKey(packageKey, "")
-            entry = entryMap.entries
-                .filter { it.key.startsWith(searchKey) }
-                .firstOrNull {
-                    SemVer.satisfies(it.key.removePrefix(searchKey), "*")
-                }
-                ?.value
-        }
-
-        return checkNotNull(entry) {
-            "Cannot find $key in yarn.lock"
-        }
-    }
-
-    val YarnLock.Entry.dependencyKey: String
-        get() = key.correctDependencyKey()
-
-    private fun dependencyKey(packageKey: String, version: String) =
-        YarnLock.dependencyKey(packageKey, version).correctDependencyKey()
-
-    private fun String.correctDependencyKey(): String {
-        var correctedKey = replace("@github:", "@")
-
-        if ("@file:" in correctedKey) {
-            val location = correctedKey.substringAfter("@file:")
-            val path = lockFile.parentFile.resolve(location).canonicalPath
-            correctedKey = correctedKey.replaceAfter("@file:", path)
-        }
-
-        return correctedKey
-    }
-}

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/yarn/YarnEntryRegistry.kt

@@ -0,0 +1,59 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.gradle.targets.js.yarn
+
+import com.github.gundy.semver4j.SemVer
+import java.io.File
+
+internal class YarnEntryRegistry(private val lockFile: File) {
+    private val entryMap = YarnLock.parse(lockFile)
+        .entries
+        .associateBy { it.dependencyKey }
+
+    fun find(packageKey: String, version: String): YarnLock.Entry {
+        val key = dependencyKey(packageKey, version)
+        var entry = entryMap[key]
+
+        if (entry == null && version == "*") {
+            val searchKey = dependencyKey(packageKey, "")
+            entry = entryMap.entries
+                .filter { it.key.startsWith(searchKey) }
+                .firstOrNull {
+                    SemVer.satisfies(it.key.removePrefix(searchKey), "*")
+                }
+                ?.value
+        }
+
+        return checkNotNull(entry) {
+            "Cannot find $key in yarn.lock"
+        }
+    }
+
+    private val YarnLock.Entry.dependencyKey: String
+        get() = key.correctDependencyKey()
+
+    private fun dependencyKey(packageKey: String, version: String) =
+        YarnLock.dependencyKey(packageKey, version).correctDependencyKey()
+
+    private fun String.correctDependencyKey(): String {
+        var correctedKey = replace(GITHUB_VERSION_PREFIX, "@")
+
+        if (FILE_VERSION_PREFIX in correctedKey) {
+            val location = correctedKey.substringAfter(FILE_VERSION_PREFIX)
+            val path = lockFile
+                .parentFile
+                .resolve(location)
+                .canonicalPath
+
+            correctedKey = correctedKey.replaceAfter(FILE_VERSION_PREFIX, path)
+        }
+
+        return correctedKey
+    }
+}
+
+private const val FILE_VERSION_PREFIX = "@file:"
+private const val GITHUB_VERSION_PREFIX = "@github:"