feat(compiler): add app ID validation to prevent duplicate IDs during batch compilation

Author: dos1in

fe/packages/compiler/src/bin/compile.js

@@ -43,6 +43,49 @@ function isCompilerModified(lastCompileTime) {
 	return isModified(COMPILER_SRC_DIR, lastCompileTime)
 }
 
+function readAppId(workPath) {
+	const projectConfigPath = path.join(workPath, 'project.config.json')
+	if (!fs.existsSync(projectConfigPath)) {
+		return null
+	}
+
+	try {
+		const projectConfig = JSON.parse(fs.readFileSync(projectConfigPath, 'utf8'))
+		return projectConfig.appid || null
+	}
+	catch (error) {
+		console.warn(`读取 ${projectConfigPath} 失败:`, error.message)
+		return null
+	}
+}
+
+function assertUniqueAppIds(exampleRoot, directories) {
+	const appIdMap = new Map()
+
+	for (const directory of directories) {
+		const workPath = path.join(exampleRoot, directory)
+		const appId = readAppId(workPath)
+		if (!appId) {
+			continue
+		}
+
+		const appNames = appIdMap.get(appId) || []
+		appNames.push(directory)
+		appIdMap.set(appId, appNames)
+	}
+
+	const duplicates = [...appIdMap.entries()].filter(([, appNames]) => appNames.length > 1)
+	if (duplicates.length === 0) {
+		return
+	}
+
+	const detail = duplicates
+		.map(([appId, appNames]) => `${appId}: ${appNames.join(', ')}`)
+		.join('\n')
+
+	throw new Error(`检测到重复的 appid，批量编译会覆盖产物:\n${detail}`)
+}
+
 async function cleanUpOldApps(targetPath, appList) {
 	try {
 		// 清理目标目录
@@ -95,6 +138,8 @@ async function buildMiniApp() {
 			return fs.existsSync(filePath) && fs.statSync(filePath).isDirectory();
 		})
 
+		assertUniqueAppIds(currentDirectory, directories)
+
 		const appList = []
 		for (const fileName of directories) {
 			const workPath = path.resolve(`./example/${fileName}`)