Support creating module-info.java (#2680)

Signed-off-by: Sheng Chen <[email protected]>

Author: jdneo

package.json

@@ -1087,6 +1087,11 @@
         "command": "java.action.changeBaseType",
         "title": "%java.action.changeBaseType%",
         "category": "Java"
+      },
+      {
+        "command": "java.project.createModuleInfo.command",
+        "title": "%java.project.createModuleInfo.command%",
+        "category": "Java"
       }
     ],
     "keybindings": [

package.nls.json

@@ -21,5 +21,6 @@
 	"java.action.showClassHierarchy": "Show Class Hierarchy",
 	"java.action.showSupertypeHierarchy": "Show Supertype Hierarchy",
 	"java.action.showSubtypeHierarchy": "Show Subtype Hierarchy",
-	"java.action.changeBaseType": "Base on this Type"
+	"java.action.changeBaseType": "Base on this Type",
+	"java.project.createModuleInfo.command": "Create module-info.java"
 }

package.nls.zh-cn.json

@@ -21,5 +21,6 @@
 	"java.action.showClassHierarchy": "显示类的继承关系",
 	"java.action.showSupertypeHierarchy": "显示父类层次结构",
 	"java.action.showSubtypeHierarchy": "显示子类层次结构",
-	"java.action.changeBaseType": "基于此类型"
+	"java.action.changeBaseType": "基于此类型",
+	"java.project.createModuleInfo.command": "创建 module-info.java"
 }

package.nls.zh-tw.json

@@ -21,5 +21,6 @@
 	"java.action.showClassHierarchy": "顯示類別階層結構",
 	"java.action.showSupertypeHierarchy": "顯示父類別階層結構",
 	"java.action.showSubtypeHierarchy": "顯示子類別階層結構",
-	"java.action.changeBaseType": "以此型別為基礎"
-}
+	"java.action.changeBaseType": "以此型別為基礎",
+	"java.project.createModuleInfo.command": "創建 module-info.java"
+}

src/commands.ts

@@ -277,4 +277,14 @@ export namespace Commands {
     export const UPGRADE_GRADLE_WRAPPER = '_java.gradle.upgradeWrapper';
 
     export const LOMBOK_CONFIGURE = "java.lombokConfigure";
+
+    /**
+     * The JDT.LS command to create module-info.java
+     */
+    export const CREATE_MODULE_INFO = "java.project.createModuleInfo";
+
+    /**
+     * The VS Code command to create module-info.java
+     */
+    export const CREATE_MODULE_INFO_COMMAND = "java.project.createModuleInfo.command";
 }

src/standardLanguageClient.ts

@@ -552,6 +552,27 @@ export class StandardLanguageClient {
 				markdownPreviewProvider.show(context.asAbsolutePath(path.join('document', `${Commands.LEARN_MORE_ABOUT_REFACTORING}.md`)), 'Java Refactoring', sectionId, context);
 			}));
 
+			context.subscriptions.push(commands.registerCommand(Commands.CREATE_MODULE_INFO_COMMAND, async () => {
+				const uri = await askForProjects(
+					window.activeTextEditor?.document.uri,
+					"Please select the project to create module-info.java",
+					false,
+				);
+				if (!uri?.length) {
+					return;
+				}
+
+				const moduleInfoUri: string = await commands.executeCommand(
+					Commands.EXECUTE_WORKSPACE_COMMAND,
+					Commands.CREATE_MODULE_INFO,
+					uri[0].toString(),
+				);
+
+				if (moduleInfoUri) {
+					await window.showTextDocument(Uri.parse(moduleInfoUri));
+				}
+			}));
+
 			languages.registerCodeActionsProvider({
 				language: "xml",
 				scheme: "file",

src/standardLanguageClientUtils.ts

@@ -56,26 +56,30 @@ function isJavaConfigFile(filePath: string) {
  * @param activeFileUri the uri of the active file.
  * @param placeHolder message to be shown in quick pick.
  */
-export async function askForProjects(activeFileUri: Uri | undefined, placeHolder: string): Promise<Uri[]> {
+export async function askForProjects(activeFileUri: Uri | undefined, placeHolder: string, canPickMany: boolean = true): Promise<Uri[]> {
 	const projectPicks: QuickPickItem[] = await generateProjectPicks(activeFileUri);
 	if (!projectPicks?.length) {
 		return [];
 	} else if (projectPicks.length === 1) {
 		return [Uri.file(projectPicks[0].detail)];
-	} else {
-		const choices: QuickPickItem[] | undefined = await window.showQuickPick(projectPicks, {
-			matchOnDetail: true,
-			placeHolder: placeHolder,
-			ignoreFocusOut: true,
-			canPickMany: true,
-		});
+	}
 
-		if (choices?.length) {
-			return choices.map(c => Uri.file(c.detail));
-		}
+	const choices: QuickPickItem[] | QuickPickItem | undefined = await window.showQuickPick(projectPicks, {
+		matchOnDetail: true,
+		placeHolder: placeHolder,
+		ignoreFocusOut: true,
+		canPickMany: canPickMany,
+	});
+
+	if (!choices) {
+		return [];
+	}
+
+	if (Array.isArray(choices)) {
+		return choices.map(c => Uri.file(c.detail));
 	}
 
-	return [];
+	return [Uri.file(choices.detail)];
 }
 
 /**