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setup-typescript-eslint-prettier.js
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setup-typescript-eslint-prettier.js
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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-unused-vars': 'error',
'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.');
})();