const inquirer = require('inquirer')
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const { semver } = require('@vue/cli-shared-utils')
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module.exports = async (api) => {
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const pkg = require(api.resolve('package.json'))
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let localESLintRange = pkg.devDependencies.eslint
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// if project is scaffolded by Vue CLI 3.0.x or earlier,
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// the ESLint dependency (ESLint v4) is inside @vue/cli-plugin-eslint;
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// in Vue CLI v4 it should be extracted to the project dependency list.
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if (api.fromVersion('^3') && !localESLintRange) {
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localESLintRange = '^4.19.1'
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api.extendPackage({
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devDependencies: {
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eslint: localESLintRange,
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'babel-eslint': '^8.2.5',
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'eslint-plugin-vue': '^4.5.0'
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}
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})
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}
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const localESLintMajor = semver.major(
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semver.maxSatisfying(['4.99.0', '5.99.0', '6.99.0', '7.99.0'], localESLintRange) ||
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// in case the user does not specify a typical caret range;
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// it is used as **fallback** because the user may have not previously
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// installed eslint yet, such as in the case that they are from v3.0.x
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require('eslint/package.json').version
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)
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if (localESLintMajor >= 6) {
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return
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}
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const { confirmUpgrade } = await inquirer.prompt([{
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name: 'confirmUpgrade',
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type: 'confirm',
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message:
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`Your current ESLint version is v${localESLintMajor}.\n` +
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`The latest major version which supported by vue-cli is v6.\n` +
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`Do you want to upgrade? (May contain breaking changes)\n`
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}])
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if (confirmUpgrade) {
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const { getDeps } = require('../eslintDeps')
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const newDeps = getDeps(api)
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if (pkg.devDependencies['@vue/eslint-config-airbnb']) {
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Object.assign(newDeps, getDeps(api, 'airbnb'))
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}
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if (pkg.devDependencies['@vue/eslint-config-standard']) {
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Object.assign(newDeps, getDeps(api, 'standard'))
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}
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if (pkg.devDependencies['@vue/eslint-config-prettier']) {
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Object.assign(newDeps, getDeps(api, 'prettier'))
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}
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api.extendPackage({ devDependencies: newDeps }, { warnIncompatibleVersions: false })
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// in case anyone's upgrading from the legacy `typescript-eslint-parser`
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if (api.hasPlugin('typescript')) {
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api.extendPackage({
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eslintConfig: {
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parserOptions: {
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parser: '@typescript-eslint/parser'
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}
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}
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})
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}
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// TODO:
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// transform `@vue/prettier` to `eslint:recommended` + `@vue/prettier`
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// transform `@vue/typescript` to `@vue/typescript/recommended` and also fix prettier compatibility for it
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}
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}
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