Fix highlighting for scripts in diff view (KT-30690)

^KT-30690 Fixed

idea/idea-analysis/src/org/jetbrains/kotlin/idea/highlighter/KotlinHighlightingUtil.kt

@@ -17,6 +17,7 @@
 package org.jetbrains.kotlin.idea.highlighter
 
 import com.intellij.psi.PsiElement
+import com.intellij.psi.PsiManager
 import org.jetbrains.kotlin.idea.caches.project.NotUnderContentRootModuleInfo
 import org.jetbrains.kotlin.idea.caches.project.getModuleInfo
 import org.jetbrains.kotlin.idea.core.script.IdeScriptReportSink
@@ -36,12 +37,14 @@ object KotlinHighlightingUtil {
             return true
         }
 
-        if (ktFile.isScript()) {
-            return shouldHighlightScript(ktFile)
+        if (OutsidersPsiFileSupportWrapper.isOutsiderFile(ktFile.virtualFile)) {
+            val origin = OutsidersPsiFileSupportUtils.getOutsiderFileOrigin(ktFile.project, ktFile.virtualFile) ?: return false
+            val psiFileOrigin = PsiManager.getInstance(ktFile.project).findFile(origin) ?: return false
+            return shouldHighlight(psiFileOrigin)
         }
 
-        if (OutsidersPsiFileSupportWrapper.isOutsiderFile(ktFile.virtualFile)) {
-            return true
+        if (ktFile.isScript()) {
+            return shouldHighlightScript(ktFile)
         }
 
         return ProjectRootsUtil.isInProjectOrLibraryContent(ktFile) && ktFile.getModuleInfo() !is NotUnderContentRootModuleInfo

idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/ScriptDependenciesUpdater.kt

@@ -35,6 +35,7 @@ import org.jetbrains.annotations.TestOnly
 import org.jetbrains.kotlin.idea.KotlinFileType
 import org.jetbrains.kotlin.idea.core.script.dependencies.AsyncScriptDependenciesLoader
 import org.jetbrains.kotlin.idea.core.script.dependencies.FromFileAttributeScriptDependenciesLoader
+import org.jetbrains.kotlin.idea.core.script.dependencies.OutsiderFileDependenciesLoader
 import org.jetbrains.kotlin.idea.core.script.dependencies.SyncScriptDependenciesLoader
 import org.jetbrains.kotlin.idea.util.ProjectRootsUtil
 import org.jetbrains.kotlin.psi.KtFile
@@ -54,6 +55,7 @@ class ScriptDependenciesUpdater(
 
     private val loaders = arrayListOf(
         FromFileAttributeScriptDependenciesLoader(project),
+        OutsiderFileDependenciesLoader(project),
         AsyncScriptDependenciesLoader(project),
         SyncScriptDependenciesLoader(project)
     )

idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/dependencies/FromFileAttributeScriptDependenciesLoader.kt

@@ -8,7 +8,6 @@ package org.jetbrains.kotlin.idea.core.script.dependencies
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.vfs.VirtualFile
 import org.jetbrains.kotlin.idea.core.script.scriptDependencies
-import kotlin.script.experimental.dependencies.ScriptDependencies
 
 class FromFileAttributeScriptDependenciesLoader(project: Project) : ScriptDependenciesLoader(project) {
 
@@ -18,15 +17,7 @@ class FromFileAttributeScriptDependenciesLoader(project: Project) : ScriptDepend
 
     override fun loadDependencies(file: VirtualFile) {
         val deserializedDependencies = file.scriptDependencies ?: return
-        saveToCache(deserializedDependencies, file)
-    }
-
-    private fun saveToCache(deserialized: ScriptDependencies, file: VirtualFile) {
-        val rootsChanged = cache.hasNotCachedRoots(deserialized)
-        cache.save(file, deserialized)
-        if (rootsChanged) {
-            shouldNotifyRootsChanged = true
-        }
+        saveToCache(file, deserializedDependencies)
     }
 
     override fun shouldShowNotification(): Boolean = false

idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/dependencies/OutsiderFileDependenciesLoader.kt

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. 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.idea.core.script.dependencies
+
+import com.intellij.openapi.project.Project
+import com.intellij.openapi.vfs.VirtualFile
+import org.jetbrains.kotlin.idea.core.script.ScriptDependenciesManager
+import org.jetbrains.kotlin.idea.highlighter.OutsidersPsiFileSupportUtils
+import org.jetbrains.kotlin.idea.highlighter.OutsidersPsiFileSupportWrapper
+
+class OutsiderFileDependenciesLoader(project: Project) : ScriptDependenciesLoader(project) {
+    override fun isApplicable(file: VirtualFile): Boolean {
+        return OutsidersPsiFileSupportWrapper.isOutsiderFile(file)
+    }
+
+    override fun loadDependencies(file: VirtualFile) {
+        val fileOrigin = OutsidersPsiFileSupportUtils.getOutsiderFileOrigin(project, file) ?: return
+        saveToCache(file, ScriptDependenciesManager.getInstance(project).getScriptDependencies(fileOrigin))
+    }
+
+    override fun shouldShowNotification(): Boolean = false
+}

idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/dependencies/ScriptDependenciesLoader.kt

@@ -21,6 +21,7 @@ import org.jetbrains.kotlin.scripting.resolve.ScriptContentLoader
 import org.jetbrains.kotlin.scripting.resolve.ScriptReportSink
 import org.jetbrains.kotlin.scripting.resolve.adjustByDefinition
 import kotlin.script.experimental.dependencies.DependenciesResolver
+import kotlin.script.experimental.dependencies.ScriptDependencies
 
 abstract class ScriptDependenciesLoader(protected val project: Project) {
 
@@ -86,6 +87,10 @@ abstract class ScriptDependenciesLoader(protected val project: Project) {
         }
 
         val dependencies = result.dependencies?.adjustByDefinition(scriptDef) ?: return
+        saveToCache(file, dependencies)
+    }
+
+    protected fun saveToCache(file: VirtualFile, dependencies: ScriptDependencies) {
         val rootsChanged = cache.hasNotCachedRoots(dependencies)
         if (cache.save(file, dependencies)) {
             file.scriptDependencies = dependencies