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const path = require('path')
module.exports = (api, options) => {
if (options.lintOnSave) {
const extensions = require('./eslintOptions').extensions(api)
// Use loadModule to allow users to customize their ESLint dependency version.
const { resolveModule, loadModule } = require('@vue/cli-shared-utils')
const cwd = api.getCwd()
const eslintPkg =
loadModule('eslint/package.json', cwd, true) ||
loadModule('eslint/package.json', __dirname, true)
// eslint-loader doesn't bust cache when eslint config changes
// so we have to manually generate a cache identifier that takes the config
// into account.
const { cacheIdentifier } = api.genCacheConfig(
'eslint-loader',
{
'eslint-loader': require('eslint-loader/package.json').version,
eslint: eslintPkg.version
},
[
'.eslintrc.js',
'.eslintrc.yaml',
'.eslintrc.yml',
'.eslintrc.json',
'.eslintrc',
'.eslintignore',
'package.json'
]
)
api.chainWebpack(webpackConfig => {
const { lintOnSave } = options
const allWarnings = lintOnSave === true || lintOnSave === 'warning'
const allErrors = lintOnSave === 'error'
webpackConfig.module
.rule('eslint')
.pre()
.exclude
.add(/node_modules/)
.add(path.dirname(require.resolve('@vue/cli-service')))
.end()
.test(/\.(vue|(j|t)sx?)$/)
.use('eslint-loader')
.loader(require.resolve('eslint-loader'))
.options({
extensions,
cache: true,
cacheIdentifier,
emitWarning: allWarnings,
// only emit errors in production mode.
emitError: allErrors,
eslintPath: path.dirname(
resolveModule('eslint/package.json', cwd) ||
resolveModule('eslint/package.json', __dirname)
),
formatter: loadModule('eslint/lib/formatters/codeframe', cwd, true)
})
})
}
api.registerCommand(
'lint',
{
description: 'lint and fix source files',
usage: 'vue-cli-service lint [options] [...files]',
options: {
'--format [formatter]': 'specify formatter (default: codeframe)',
'--no-fix': 'do not fix errors or warnings',
'--no-fix-warnings': 'fix errors, but do not fix warnings',
'--max-errors [limit]':
'specify number of errors to make build failed (default: 0)',
'--max-warnings [limit]':
'specify number of warnings to make build failed (default: Infinity)'
},
details:
'For more options, see https://eslint.org/docs/user-guide/command-line-interface#options'
},
args => {
require('./lint')(args, api)
}
)
}
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