UNPKG

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1"use strict";exports.__esModule=true;exports.hasNecessaryDependencies=hasNecessaryDependencies;var _chalk=_interopRequireDefault(require("chalk"));var _path=require("path");var _fileExists=require("./file-exists");var _oxfordCommaList=require("./oxford-comma-list");var _fatalError=require("./fatal-error");function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}const requiredTSPackages=[{file:'typescript',pkg:'typescript'},{file:'@types/react/index.d.ts',pkg:'@types/react'},{file:'@types/node/index.d.ts',pkg:'@types/node'}];const requiredLintPackages=[{file:'eslint/lib/api.js',pkg:'eslint'},{file:'eslint-config-next',pkg:'eslint-config-next'}];async function hasNecessaryDependencies(baseDir,checkTSDeps,checkESLintDeps,lintDuringBuild=false){if(!checkTSDeps&&!checkESLintDeps){return{resolved:undefined};}let resolutions=new Map();let requiredPackages=checkESLintDeps?requiredLintPackages:requiredTSPackages;const missingPackages=requiredPackages.filter(p=>{try{resolutions.set(p.pkg,require.resolve(p.file,{paths:[baseDir]}));return false;}catch(_){return true;}});if(missingPackages.length<1){return{resolved:resolutions};}const packagesHuman=(0,_oxfordCommaList.getOxfordCommaList)(missingPackages.map(p=>p.pkg));const packagesCli=missingPackages.map(p=>p.pkg).join(' ');const yarnLockFile=(0,_path.join)(baseDir,'yarn.lock');const isYarn=await(0,_fileExists.fileExists)(yarnLockFile).catch(()=>false);const removalTSMsg='\n\n'+_chalk.default.bold('If you are not trying to use TypeScript, please remove the '+_chalk.default.cyan('tsconfig.json')+' file from your package root (and any TypeScript files in your pages directory).');const removalLintMsg=`\n\n`+(lintDuringBuild?`If you do not want to run ESLint during builds, disable it in next.config.js. See https://nextjs.org/docs/api-reference/next.config.js/ignoring-eslint`:`Once installed, run ${_chalk.default.bold.cyan('next lint')} again.`);const removalMsg=checkTSDeps?removalTSMsg:removalLintMsg;throw new _fatalError.FatalError(_chalk.default.bold.red(checkTSDeps?`It looks like you're trying to use TypeScript but do not have the required package(s) installed.`:`To use ESLint, additional required package(s) must be installed.`)+'\n\n'+_chalk.default.bold(`Please install ${_chalk.default.bold(packagesHuman)} by running:`)+'\n\n'+`\t${_chalk.default.bold.cyan((isYarn?'yarn add --dev':'npm install --save-dev')+' '+packagesCli)}`+removalMsg+'\n');}
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