Forked from chill-cod3r/setup-typescript-eslint-prettier.js
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November 12, 2022 16:54
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Automate TypeScript ESLint Prettier + my opinionated ESLint rules
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const fs = require('fs'); | |
const cp = require('child_process'); | |
const util = require('util'); | |
const path = require('path'); | |
const exec = util.promisify(cp.exec); | |
const writeFile = util.promisify(fs.writeFile); | |
const prettierConfigVscode = { | |
'editor.codeActionsOnSave': { | |
'source.fixAll': true, | |
}, | |
'[json]': { | |
'editor.defaultFormatter': 'vscode.json-language-features', | |
}, | |
'[javascript]': { | |
'editor.defaultFormatter': 'esbenp.prettier-vscode', | |
}, | |
'[typescript]': { | |
'editor.defaultFormatter': 'esbenp.prettier-vscode', | |
}, | |
}; | |
const eslintRc = { | |
parser: '@typescript-eslint/parser', | |
parserOptions: { | |
ecmaVersion: 2020, | |
}, | |
env: { | |
node: true, | |
}, | |
extends: [ | |
'eslint:recommended', | |
'plugin:@typescript-eslint/recommended', | |
'plugin:prettier/recommended', | |
], | |
rules: { | |
complexity: [ 'warn', 10 ], | |
'prefer-const': 'error', | |
'@typescript-eslint/no-explicit-any': 'off', | |
'@typescript-eslint/no-var-requires': 'off', | |
'@typescript-eslint/no-unused-vars': 'error', | |
'@typescript-eslint/no-non-null-assertion': 'off', | |
'@typescript-eslint/explicit-module-boundary-types': 'off', | |
'padding-line-between-statements': [ | |
'error', | |
{ blankLine: 'always', prev: '*', next: 'if' }, | |
{ blankLine: 'always', prev: '*', next: 'block-like' }, | |
{ blankLine: 'always', prev: '*', next: 'block' }, | |
{ blankLine: 'always', prev: '*', next: 'return' } | |
] | |
}, | |
}; | |
const prettierRc = { | |
tabWidth: 4, | |
singleQuote: true, | |
printWidth: 80, | |
trailingComma: 'all', | |
}; | |
const packages = [ | |
'@typescript-eslint/eslint-plugin', | |
'@typescript-eslint/parser', | |
'eslint-config-prettier', | |
'eslint-plugin-prettier', | |
'eslint', | |
'prettier', | |
]; | |
(async () => { | |
const vscodeDirPath = path.join(__dirname, '.vscode'); | |
try { | |
fs.statSync(vscodeDirPath).isDirectory(); | |
} catch (error) { | |
fs.mkdirSync(vscodeDirPath); | |
} | |
const workspacePath = path.join( | |
__dirname, | |
'.vscode', | |
'settings.json', | |
); | |
let workspaceSettings = {}; | |
try { | |
fs.statSync(workspacePath).isFile(); | |
} catch (error) {} | |
workspaceSettings = { | |
...workspaceSettings, | |
...prettierConfigVscode, | |
}; | |
await Promise.all([ | |
writeFile( | |
workspacePath, | |
JSON.stringify(workspaceSettings, null, 2), | |
).then(() => console.log('writing new .vscode/settings.json')), | |
writeFile( | |
'.eslintrc.json', | |
JSON.stringify(eslintRc, null, 2), | |
).then(() => console.log('writing new .eslintrc.json')), | |
writeFile( | |
'.prettierrc.json', | |
JSON.stringify(prettierRc, null, 2), | |
).then(() => console.log('writing new .prettierrc.json')), | |
exec(`npm i -D ${packages.join(' ')}`) | |
.then(({ stdout }) => console.log(stdout)) | |
.catch(console.log), | |
]); | |
console.log('Finished installing all dependencies and configuring files.\nYou may need to restart vscode for the eslint / prettier settings to take effect.\nI believe you also need the prettier and eslint extensions installed in vscode.'); | |
})(); |
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