解析错误：遵循 Firebase Cloud Functions 初始化说明后无法读取文件 '\tsconfig.json' eslint

Question

问题

在我的 TypeScript 项目在 VSCode 中初始化之后，在 official documentation 之后使用 firebase 工具组合 Firebase Cloud Functions，index.ts 文件的第一行显示错误：

Parsing error: Cannot read file '\tsconfig.json' eslint [1,1]

.eslintrc.js 显示错误：

File is a CommonJS module; it may be converted to an ES6 module.ts(80001)

由于所有文件都是自动生成的，因此这些错误完全令人惊讶，我想摆脱它们。

版本

为了记录，这里是安装的版本：

npm      --version 8.1.3
tsc      --version 4.4.4
node     --version 17.0.1
firebase --version 9.22.0

安装过程

这些是我在 VSCode 的 powershell 中使用的命令，带有一些信息/警告：

>npm install -g firebase-tools
npm WARN deprecated har-validator@5.1.5: this library is no longer supported
npm WARN deprecated uuid@3.4.0: Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details.
npm WARN deprecated request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
...

>firebase init
...
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE   package: undefined,
npm WARN EBADENGINE   required: { node: '14' },
npm WARN EBADENGINE   current: { node: 'v17.0.1', npm: '8.1.3' }
npm WARN EBADENGINE }
...

>npm install firebase-functions@latest firebase-admin@latest --save
...
npm WARN deprecated har-validator@5.1.5: this library is no longer supported
npm WARN deprecated uuid@3.4.0: Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details.
npm WARN deprecated request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
...

>firebase deploy
...
C:\Users\SAMS\firebase_dogout\functions\src\index.ts
  1:13  warning  'functions' is defined but never used  @typescript-eslint/no-unused-vars
...
Error: functions predeploy error: Command terminated with non-zero exit code2

文件

tsconfig.json

{
  "compilerOptions": {
    "module": "commonjs",
    "noImplicitReturns": true,
    "noUnusedLocals": true,
    "outDir": "lib",
    "sourceMap": true,
    "strict": true,
    "target": "es2017"
  },
  "compileOnSave": true,
  "include": [
    "src"
  ]
}

.eslintrc.js

module.exports = {
  root: true,
  env: {
    es6: true,
    node: true,
  },
  extends: [
    "eslint:recommended",
    "plugin:import/errors",
    "plugin:import/warnings",
    "plugin:import/typescript",
    "google",
    "plugin:@typescript-eslint/recommended",
  ],
  parser: "@typescript-eslint/parser",
  parserOptions: {
    project: ["tsconfig.json", "tsconfig.dev.json"],
    sourceType: "module",
  },
  ignorePatterns: [
    "/lib/**/*", // Ignore built files.
  ],
  plugins: [
    "@typescript-eslint",
    "import",
  ],
  rules: {
    "quotes": ["error", "double"],
    "import/no-unresolved": 0,
  },
};

index.ts

import * as functions from "firebase-functions";

export const helloWorld = functions.https.onRequest((request, response) => {
  functions.logger.info("Hello logs!", {structuredData: true});
  response.send("Hello from Firebase!");
});

我尝试了什么

1. 重新初始化
2. 使用settings.json 文件创建.vscode 文件夹

 {
   "eslint.workingDirectories": [
       "src" // and "functions"
   ]
 }

1. 使用以下行更新 eslintrc.json 文件："project":"PROJECT_NAME/tsconfig.json"
2. 通过在parserOptions 中设置tsconfigRootDir: __dirname 来更新.eslintrc.js
3. 删除 ESLint 扩展。错误消失了，但firebase deploy 命令不允许代码部署。

所以，related thread 并没有真正的帮助

Answer 1

好的，在这个 github 线程的帮助下，我已经解决了这个问题 False positive Error - TS6133 error (declared but its value is never read) report.

我已将tsconfig.json文件中的"noUnusedLocals"设置从默认的true更改为false，所以文件变为：

"compilerOptions": {
    ...
    "noUnusedLocals": false,
    ...
  }

然而，奇怪的是，在使用此设置成功将功能部署到Firebase Cloud Fuctions 并随后恢复更改后，重新部署并没有显示任何错误并且也成功了。

更新

重试几次后，我必须承认解决方案有所不同。 原来related stackoverflow thread 确实有帮助，尤其是@cherryblossom 解决方案。在.eslintrc.js文件中设置tsconfigRootDir: __dirname，重启VSCode即可解决问题。

.eslintrc.js:

module.exports = {
  // ...
  parserOptions: {
    ...
    tsconfigRootDir: __dirname,
    ...
  },
  // ...
}