in packages/web-scripts/src/Tasks/CommitTasks.ts [73:105]
export async function lintStaged(task: PrecommitTaskDesc): Promise<string> {
const config = getLintStagedConfig();
const cmd = 'npx';
const args = [
'--no-install',
'lint-staged',
...(config ? ['--config', config] : []),
...task.restOptions,
];
dbg('npx args %o', args);
const env: { [key: string]: string } = {
...process.env,
WEB_SCRIPTS_RUN_TESTS: task.tests.toString(),
};
if (task.eslintConfig) {
env.WEB_SCRIPTS_ESLINT_CONFIG = task.eslintConfig;
}
if (task.jestConfig) {
env.WEB_SCRIPTS_JEST_CONFIG = task.jestConfig;
}
if (task.prettierConfig) {
env.WEB_SCRIPTS_PRETTIER_CONFIG = task.prettierConfig;
}
const stdout = await promiseSpawn(cmd, args, {
stdio: 'inherit',
env,
});
return (stdout || '').toString();
}