feat(amazonq): Add events to trigger file refresh on file changes in agentic (#5709)

JetBrains does not automatically refresh the editor when a file is changed externally.(https://youtrack.jetbrains.com/issue/IJPL-2188/Background-changes-by-external-tool-not-being-picked-up-until-VFS-refresh-happens)
Whenever a file is written to externally, trigger a vfs refresh(either for a file or directory) so new changes can be easily reflected in the workspace.

Author: manodnyab

plugins/amazonq/codewhisperer/jetbrains-community/src/software/aws/toolkits/jetbrains/services/codewhisperer/language/languages/CodeWhispererAbap.kt

@@ -11,8 +11,6 @@ class CodeWhispererAbap private constructor() : CodeWhispererProgrammingLanguage
 
     override fun toTelemetryType(): CodewhispererLanguage = CodewhispererLanguage.Abap
 
-    override fun isCodeCompletionSupported(): Boolean = true
-
     companion object {
         const val ID = "abap"
 

plugins/amazonq/shared/jetbrains-community/src/software/aws/toolkits/jetbrains/services/amazonq/lsp/AmazonQLanguageClient.kt

@@ -10,6 +10,13 @@ import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.LSPAny
 import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.CHAT_OPEN_TAB
 import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.CHAT_SEND_CONTEXT_COMMANDS
 import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.CHAT_SEND_UPDATE
+import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.CopyFileParams
+import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.DID_APPEND_FILE
+import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.DID_COPY_FILE
+import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.DID_CREATE_DIRECTORY
+import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.DID_REMOVE_FILE
+import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.DID_WRITE_FILE
+import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.FileParams
 import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.GET_SERIALIZED_CHAT_REQUEST_METHOD
 import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.GetSerializedChatResult
 import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.OPEN_FILE_DIFF
@@ -45,4 +52,19 @@ interface AmazonQLanguageClient : LanguageClient {
 
     @JsonNotification(CHAT_SEND_CONTEXT_COMMANDS)
     fun sendContextCommands(params: LSPAny): CompletableFuture<Unit>
+
+    @JsonNotification(DID_COPY_FILE)
+    fun copyFile(params: CopyFileParams)
+
+    @JsonNotification(DID_WRITE_FILE)
+    fun writeFile(params: FileParams)
+
+    @JsonNotification(DID_APPEND_FILE)
+    fun appendFile(params: FileParams)
+
+    @JsonNotification(DID_REMOVE_FILE)
+    fun removeFile(params: FileParams)
+
+    @JsonNotification(DID_CREATE_DIRECTORY)
+    fun createDirectory(params: FileParams)
 }

plugins/amazonq/shared/jetbrains-community/src/software/aws/toolkits/jetbrains/services/amazonq/lsp/AmazonQLanguageClientImpl.kt

@@ -13,6 +13,7 @@ import com.intellij.openapi.fileChooser.FileSaverDescriptor
 import com.intellij.openapi.fileEditor.FileEditorManager
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.vfs.LocalFileSystem
+import com.intellij.openapi.vfs.VfsUtil
 import com.intellij.openapi.vfs.VirtualFileManager
 import migration.software.aws.toolkits.jetbrains.settings.AwsSettings
 import org.eclipse.lsp4j.ConfigurationParams
@@ -25,6 +26,7 @@ import org.eclipse.lsp4j.ShowDocumentParams
 import org.eclipse.lsp4j.ShowDocumentResult
 import org.eclipse.lsp4j.ShowMessageRequestParams
 import org.slf4j.event.Level
+import software.amazon.awssdk.utils.UserHomeDirectoryUtils
 import software.aws.toolkits.core.utils.error
 import software.aws.toolkits.core.utils.getLogger
 import software.aws.toolkits.core.utils.info
@@ -38,6 +40,8 @@ import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.LSPAny
 import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.CHAT_OPEN_TAB
 import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.CHAT_SEND_CONTEXT_COMMANDS
 import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.CHAT_SEND_UPDATE
+import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.CopyFileParams
+import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.FileParams
 import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.GET_SERIALIZED_CHAT_REQUEST_METHOD
 import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.GetSerializedChatResult
 import software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat.OpenFileDiffParams
@@ -389,7 +393,38 @@ class AmazonQLanguageClientImpl(private val project: Project) : AmazonQLanguageC
         return CompletableFuture.completedFuture(Unit)
     }
 
+    override fun appendFile(params: FileParams) = refreshVfs(params.path)
+
+    override fun createDirectory(params: FileParams) = refreshVfs(params.path)
+
+    override fun removeFile(params: FileParams) = refreshVfs(params.path)
+
+    override fun writeFile(params: FileParams) = refreshVfs(params.path)
+
+    override fun copyFile(params: CopyFileParams) {
+        refreshVfs(params.oldPath)
+        return refreshVfs(params.newPath)
+    }
+
+    private fun refreshVfs(path: String) {
+        val currPath = Paths.get(path)
+        if (currPath.startsWith(localHistoryPath)) return
+        try {
+            ApplicationManager.getApplication().invokeLater {
+                VfsUtil.markDirtyAndRefresh(false, true, true, currPath.toFile())
+            }
+        } catch (e: Exception) {
+            LOG.warn(e) { "Could not refresh file" }
+        }
+    }
+
     companion object {
+        val localHistoryPath = Paths.get(
+            UserHomeDirectoryUtils.userHomeDirectory(),
+            ".aws",
+            "amazonq",
+            "history"
+        )
         private val LOG = getLogger<AmazonQLanguageClientImpl>()
     }
 }

plugins/amazonq/shared/jetbrains-community/src/software/aws/toolkits/jetbrains/services/amazonq/lsp/model/aws/chat/CopyFileParams.kt

@@ -0,0 +1,9 @@
+// Copyright 2025 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat
+
+data class CopyFileParams(
+    val oldPath: String,
+    val newPath: String,
+)

plugins/amazonq/shared/jetbrains-community/src/software/aws/toolkits/jetbrains/services/amazonq/lsp/model/aws/chat/FileParams.kt

@@ -0,0 +1,8 @@
+// Copyright 2025 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package software.aws.toolkits.jetbrains.services.amazonq.lsp.model.aws.chat
+
+data class FileParams(
+    val path: String,
+)

plugins/amazonq/shared/jetbrains-community/src/software/aws/toolkits/jetbrains/services/amazonq/lsp/model/aws/chat/FlareChatCommands.kt

@@ -31,6 +31,12 @@ const val CHAT_TAB_BAR_ACTIONS = "aws/chat/tabBarAction"
 const val CHAT_TAB_CHANGE = "aws/chat/tabChange"
 const val CHAT_TAB_REMOVE = "aws/chat/tabRemove"
 
+const val DID_COPY_FILE = "aws/didCopyFile"
+const val DID_WRITE_FILE = "aws/didWriteFile"
+const val DID_APPEND_FILE = "aws/didAppendFile"
+const val DID_REMOVE_FILE = "aws/didRemoveFileOrDirectory"
+const val DID_CREATE_DIRECTORY = "aws/didCreateDirectory"
+
 const val GET_SERIALIZED_CHAT_REQUEST_METHOD = "aws/chat/getSerializedChat"
 
 const val OPEN_FILE_DIFF = "aws/openFileDiff"