要创建一个 ESLint 插件以处理 Vue 2 项目中的 Vue 文件,您需要遵循以下步骤:
-
创建插件目录和文件:创建一个目录来存放您的 ESLint 插件文件。比如
eslint-plugin-vue-components,然后在该目录中创建一个规则文件lib/rules/register-components.js。 -
编写规则逻辑:在
register-components.js中实现您的规则逻辑。 -
配置插件:在
index.js中配置插件并导出规则。
以下是一个示例实现:
目录结构
eslint-plugin-vue-components
├── lib
│ └── rules
│ └── register-components.js
├── index.js
└── package.json
package.json
{
"name": "eslint-plugin-vue-components",
"version": "1.0.0",
"main": "index.js",
"peerDependencies": {
"eslint": "^7.0.0",
"vue-eslint-parser": "^7.0.0"
}
}
index.js
module.exports = {
rules: {
'register-components': require('./lib/rules/register-components')
}
};
lib/rules/register-components.js
const componentMap = [
{
tags: ['base-icon', 'BaseIcon'],
import: 'import BaseIcon from "@/components/BaseIcon.vue"'
},
// Add more components as needed
];
module.exports = {
meta: {
type: 'problem',
docs: {
description: 'Auto import and register components used in template',
category: 'Possible Errors',
recommended: false
},
fixable: 'code',
schema: []
},
create(context) {
const sourceCode = context.getSourceCode();
let hasTemplate = false;
let registeredComponents = [];
return {
'Program:exit'(node) {
const templateBody = node.templateBody;
if (!templateBody) return;
templateBody.children.forEach(child => {
if (child.type === 'VElement') {
const tagName = child.rawName;
componentMap.forEach(component => {
if (component.tags.includes(tagName) && !registeredComponents.includes(tagName)) {
const script = node.body.find(n => n.type === 'ExportDefaultDeclaration');
if (script) {
const componentsProperty = script.declaration.properties.find(p => p.key.name === 'components');
if (componentsProperty) {
if (!componentsProperty.value.properties.find(p => p.key.name === tagName)) {
context.report({
node: child,
message: `Component '${tagName}' is used but not registered in components.`,
fix(fixer) {
const importStatement = component.import;
const componentsText = `${tagName}: ${tagName}`;
return [
fixer.insertTextBefore(script, importStatement + '\n'),
fixer.insertTextAfterRange([componentsProperty.value.range[0] + 1, componentsProperty.value.range[0] + 1], componentsText + ',')
];
}
});
registeredComponents.push(tagName);
}
} else {
context.report({
node: child,
message: `Component '${tagName}' is used but not registered in components.`,
fix(fixer) {
const importStatement = component.import;
const componentsText = `components: { ${tagName}: ${tagName} }`;
return [
fixer.insertTextBefore(script, importStatement + '\n'),
fixer.insertTextAfter(script.declaration.properties[0], `, ${componentsText}`)
];
}
});
registeredComponents.push(tagName);
}
}
}
});
}
});
}
};
}
};
使用说明
- 安装插件:在您的 Vue 项目中安装该插件。
npm install eslint-plugin-vue-components
- 配置 ESLint:在 ESLint 配置文件(如
.eslintrc.js)中添加该插件和规则。
module.exports = {
plugins: [
'vue-components'
],
rules: {
'vue-components/register-components': 'error'
},
parserOptions: {
parser: 'vue-eslint-parser'
}
};
这个 ESLint 插件会检查 template 块中的标签,并根据 componentMap 自动引入和注册未引入的组件。您可以根据需要扩展 componentMap 以支持更多的自定义组件。
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