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import {readFileSync, existsSync} from 'fs';

import path from 'path';

import {$} from 'bun';

const staged = await $`git diff --cached --name-only --diff-filter=ACMR`.text();

const unstaged = await $`git diff --name-only`.text();

const stagedFiles = staged.trim().split('\n').filter(Boolean);

const changedFiles = [

...new Set([...stagedFiles, ...unstaged.trim().split('\n')]),

].filter(Boolean);

if (changedFiles.length === 0) {

process.exit(0);

}

const formatPackageDirs = new Set<string>();

const lintPackageNames = new Set<string>();

for (const file of changedFiles) {

const match = file.match(/^packages\/([^/]+)\//);

if (!match) {

continue;

}

const dir = match[1];

const pkgJsonPath = path.join('packages', dir, 'package.json');

if (!existsSync(pkgJsonPath)) {

continue;

}

const pkgJson = JSON.parse(readFileSync(pkgJsonPath, 'utf-8'));

if (pkgJson.scripts?.format) {

formatPackageDirs.add(path.resolve('packages', dir));

}

if (pkgJson.scripts?.lint) {

lintPackageNames.add(pkgJson.name);

}

}

if (formatPackageDirs.size > 0) {

for (const dir of formatPackageDirs) {

await $`bun run --cwd ${dir} format`;

}

// Re-stage originally staged files so formatting changes are included in this commit

if (stagedFiles.length > 0) {

await $`git add ${stagedFiles}`;

}

}