copy docs/ja/core-plugins/eslint.md

vuejs · tiwuofficial · Dec 4, 2019 · Dec 4, 2019 · Dec 4, 2019 · Dec 4, 2019
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+# @vue/cli-plugin-eslint
+
+> eslint plugin for vue-cli
+
+## Injected Commands
+
+- **`vue-cli-service lint`**
+
+  ```
+  Usage: vue-cli-service lint [options] [...files]
+
+  Options:
+
+    --format [formatter] specify formatter (default: codeframe)
+    --no-fix             do not fix errors
+    --max-errors         specify number of errors to make build failed (default: 0)
+    --max-warnings       specify number of warnings to make build failed (default: Infinity)
+  ```
+
+  Lints and fixes files. If no specific files are given, it lints all files in `src` and `test`.
+
+  Other [ESLint CLI options](https://eslint.org/docs/user-guide/command-line-interface#options) are also supported.
+
+## Configuration
+
+ESLint can be configured via `.eslintrc` or the `eslintConfig` field in `package.json`.
+
+Lint-on-save during development with `eslint-loader` is enabled by default. It can be disabled with the `lintOnSave` option in `vue.config.js`:
+
+``` js
+module.exports = {
+  lintOnSave: false
+}
+```
+
+When set to `true`, `eslint-loader` will emit lint errors as warnings. By default, warnings are only logged to the terminal and does not fail the compilation.
+
+To make lint errors show up in the browser overlay, you can use `lintOnSave: 'error'`. This will force `eslint-loader` to always emit errors. this also means lint errors will now cause the compilation to fail.
+
+Alternatively, you can configure the overlay to display both warnings and errors:
+
+``` js
+// vue.config.js
+module.exports = {
+  devServer: {
+    overlay: {
+      warnings: true,
+      errors: true
+    }
+  }
+}
+```
+
+When `lintOnSave` is a truthy value, `eslint-loader` will be applied in both development and production. If you want to disable `eslint-loader` during production build, you can use the following config:
+
+``` js
+// vue.config.js
+module.exports = {
+  lintOnSave: process.env.NODE_ENV !== 'production'
+}
+```
+
+## Installing in an Already Created Project
+
+``` sh
+vue add eslint
+```
+
+## Injected webpack-chain Rules
+
+- `config.module.rule('eslint')`
+- `config.module.rule('eslint').use('eslint-loader')`