fix(amazonq): save previously-used JDK path

Author: David Hasani

packages/core/src/amazonqGumby/chat/controller/controller.ts

@@ -432,14 +432,20 @@ export class GumbyController {
 
     private promptJavaHome(type: 'source' | 'target', tabID: any) {
         let jdkVersion = undefined
+        let currJavaHome = undefined
         if (type === 'source') {
             this.sessionStorage.getSession().conversationState = ConversationState.PROMPT_SOURCE_JAVA_HOME
             jdkVersion = transformByQState.getSourceJDKVersion()
+            currJavaHome = transformByQState.getPathFromJdkVersion(transformByQState.getSourceJDKVersion())
         } else if (type === 'target') {
             this.sessionStorage.getSession().conversationState = ConversationState.PROMPT_TARGET_JAVA_HOME
             jdkVersion = transformByQState.getTargetJDKVersion()
+            currJavaHome = transformByQState.getPathFromJdkVersion(transformByQState.getTargetJDKVersion())
+        }
+        let message = MessengerUtils.createJavaHomePrompt(jdkVersion)
+        if (currJavaHome) {
+            message += `\n\ncurrent:\n\n\`${currJavaHome}\``
         }
-        const message = MessengerUtils.createJavaHomePrompt(jdkVersion)
         this.messenger.sendMessage(message, tabID, 'ai-prompt')
         this.messenger.sendChatInputEnabled(tabID, true)
         this.messenger.sendUpdatePlaceholder(tabID, CodeWhispererConstants.enterJavaHomePlaceholder)
@@ -640,6 +646,7 @@ export class GumbyController {
                 const pathToJavaHome = extractPath(data.message)
                 if (pathToJavaHome) {
                     transformByQState.setSourceJavaHome(pathToJavaHome)
+                    transformByQState.setJdkVersionToPath(transformByQState.getSourceJDKVersion(), pathToJavaHome)
                     // if source and target JDK versions are the same, just re-use the source JAVA_HOME and start the build
                     if (transformByQState.getTargetJDKVersion() === transformByQState.getSourceJDKVersion()) {
                         transformByQState.setTargetJavaHome(pathToJavaHome)
@@ -657,6 +664,7 @@ export class GumbyController {
                 const pathToJavaHome = extractPath(data.message)
                 if (pathToJavaHome) {
                     transformByQState.setTargetJavaHome(pathToJavaHome)
+                    transformByQState.setJdkVersionToPath(transformByQState.getTargetJDKVersion(), pathToJavaHome)
                     await this.prepareLanguageUpgradeProject(data.tabID) // build right after we get target JDK path
                 } else {
                     this.messenger.sendUnrecoverableErrorResponse('invalid-java-home', data.tabID)

packages/core/src/amazonqGumby/chat/controller/messenger/messengerUtils.ts

@@ -37,7 +37,7 @@ export enum GumbyCommands {
 
 export default class MessengerUtils {
     static createJavaHomePrompt = (jdkVersion: JDKVersion | undefined): string => {
-        let javaHomePrompt = `${CodeWhispererConstants.enterJavaHomeChatMessage} ${jdkVersion}. \n`
+        let javaHomePrompt = `${CodeWhispererConstants.enterJavaHomeChatMessage} ${jdkVersion}.\n\n`
         if (os.platform() === 'win32') {
             javaHomePrompt += CodeWhispererConstants.windowsJavaHomeHelpChatMessage
         } else if (os.platform() === 'darwin') {

packages/core/src/codewhisperer/models/model.ts

@@ -754,6 +754,8 @@ export class TransformByQState {
 
     private targetJDKVersion: JDKVersion | undefined = undefined
 
+    private jdkVersionToPath: Map<JDKVersion, string> = new Map()
+
     private customBuildCommand: string = ''
 
     private sourceDB: DB | undefined = undefined
@@ -874,6 +876,14 @@ export class TransformByQState {
         return this.targetJDKVersion
     }
 
+    public getPathFromJdkVersion(version: JDKVersion | undefined) {
+        if (version) {
+            return this.jdkVersionToPath.get(version)
+        } else {
+            return undefined
+        }
+    }
+
     public getSourceDB() {
         return this.sourceDB
     }
@@ -954,6 +964,12 @@ export class TransformByQState {
         return this.targetJavaHome
     }
 
+    public setJdkVersionToPath(jdkVersion: JDKVersion | undefined, path: string) {
+        if (jdkVersion) {
+            this.jdkVersionToPath.set(jdkVersion, path)
+        }
+    }
+
     public getChatControllers() {
         return this.chatControllers
     }