CodelyzerAngular 项目的静态分析规则

联合创作 · 2023-10-02 02:37

Codelyzer 是一组用于 Angular TypeScript 项目静态代码分析的 tslint 规则。你可以在 Web 应用程序、NativeScript、Ionic 等上运行静态代码分析器。

如何使用?

Angular CLI

Angular CLI 支持 codelyzer。为了使用 CLI 和自定义 Angular 特定规则验证你的代码,只需使用:

ng new codelyzer
ng lint

请注意,默认情况下所有组件都与样式指南对齐,因此不会在控制台中看到任何错误。

Angular Seed

另一个与 codelyzer 开箱即用集成的项目是 angular-seed。为了运行 linter,你应该:

# Skip if you've already cloned Angular Seed
git clone https://github.com/mgechev/angular-seed

# Skip if you've already installed all the dependencies of Angular Seed
cd angular-seed && npm i

# Run all the tslint and codelyzer rules
npm run lint

请注意,默认情况下所有组件都与样式指南对齐,因此不会在控制台中看到任何错误。

自定义设置

预设

可以使用tslint-angular预设:

npm i tslint-angular

之后创建一个具有以下配置的tslint.json文件:

{
  "extends": ["tslint-angular"]
}

使用以下命令运行 linter:

./node_modules/.bin/tslint -c tslint.json

自定义安装

您可以轻松地在自定义设置中使用 codelyzer:

npm i codelyzer tslint @angular/compiler @angular/core

A.在PATH中使用codelyzer包

创建以下tslint.json文件,如:

{
  "extends": ["codelyzer"],
  "rules": {
    "component-class-suffix": true,
    "component-max-inline-declarations": true,
    "component-selector": [true, "element", "sg", "kebab-case"],
    "contextual-lifecycle": true,
    "directive-class-suffix": true,
    "directive-selector": [true, "attribute", "sg", "camelCase"],
    "no-attribute-decorator": true,
    "no-conflicting-lifecycle": true,
    "no-forward-ref": true,
    "no-host-metadata-property": true,
    "no-input-rename": true,
    "no-inputs-metadata-property": true,
    "no-lifecycle-call": true,
    "no-output-native": true,
    "no-output-on-prefix": true,
    "no-output-rename": true,
    "no-outputs-metadata-property": true,
    "no-pipe-impure": true,
    "no-queries-metadata-property": true,
    "no-unused-css": true,
    "prefer-inline-decorator": true,
    "prefer-output-readonly": true,
    "template-banana-in-box": true,
    "template-conditional-complexity": [true, 4],
    "template-cyclomatic-complexity": [true, 5],
    "template-i18n": [true, "check-id", "check-text"],
    "template-no-negated-async": true,
    "template-use-track-by-function": true,
    "use-component-selector": true,
    "use-component-view-encapsulation": true,
    "use-lifecycle-interface": true,
    "use-pipe-transform-interface": true
  }
}

要使用此设置运行 TSLint,可以使用以下替代方法之一:

  1. 全局安装 codelyzer npm install -g codelyzer

  2. 通过向 package.json 添加类似的脚本,从 package.json 脚本运行 TSLint 

"scripts": {
  ...
  "lint": "tslint .",
  ...
},

然后运行 npm run lint

B. 使用 node_modules 目录中的 codelyzer

现在tslint.json在你的node_modules目录所在的位置创建以下文件:

{
  "rulesDirectory": ["node_modules/codelyzer"],
  "rules": {
    "component-class-suffix": true,
    "component-max-inline-declarations": true,
    "component-selector": [true, "element", "sg", "kebab-case"],
    "contextual-lifecycle": true,
    "directive-class-suffix": true,
    "directive-selector": [true, "attribute", "sg", "camelCase"],
    "no-attribute-decorator": true,
    "no-conflicting-lifecycle": true,
    "no-forward-ref": true,
    "no-host-metadata-property": true,
    "no-input-rename": true,
    "no-inputs-metadata-property": true,
    "no-lifecycle-call": true,
    "no-output-native": true,
    "no-output-on-prefix": true,
    "no-output-rename": true,
    "no-outputs-metadata-property": true,
    "no-pipe-impure": true,
    "no-queries-metadata-property": true,
    "no-unused-css": true,
    "prefer-inline-decorator": true,
    "prefer-output-readonly": true,
    "template-banana-in-box": true,
    "template-conditional-complexity": [true, 4],
    "template-cyclomatic-complexity": [true, 5],
    "template-i18n": [true, "check-id", "check-text"],
    "template-no-negated-async": true,
    "template-use-track-by-function": true,
    "use-component-selector": true,
    "use-component-view-encapsulation": true,
    "use-lifecycle-interface": true,
    "use-pipe-transform-interface": true
  }
}

接下来你可以在同一个目录下创建一个组件文件,名称为component.ts,内容如下:

import { Component } from '@angular/core';

@Component({
  selector: 'codelyzer',
  template: ` <h1>Hello {{ name }}!</h1> `,
})
class Codelyzer {
  name: string = 'World';

  ngOnInit() {
    console.log('Initialized');
  }
}

作为最后一步,可以使用 tslint 针对代码执行所有规则:

./node_modules/.bin/tslint -c tslint.json component.ts

应该看到以下输出:

component.ts[4, 13]: The selector of the component "Codelyzer" should have prefix "sg" (https://goo.gl/cix8BY) component.ts[12, 3]: Implement lifecycle hook interface OnInit for method ngOnInit in class Codelyzer (https://goo.gl/w1Nwk3) component.ts[9, 7]: The name of the class Codelyzer should end with the suffix Component (https://goo.gl/5X1TE7) 
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