import { describe, test, expect } from 'bun:test';

import * as fs from 'fs';

import * as path from 'path';

const ROOT = path.resolve(import.meta.dir, '..');

const PKG = JSON.parse(fs.readFileSync(path.join(ROOT, 'package.json'), 'utf-8')) as {

scripts: Record<string, string>;

};

const BUILD_SCRIPT = fs.readFileSync(path.join(ROOT, 'scripts', 'build.sh'), 'utf-8');

// Strip single-quoted strings so JS code emitted as `echo '{ ... }'` doesn't

// trip the shell-brace-group check. Conservative: only `'...'` segments.

function stripSingleQuoted(s: string): string {

return s.replace(/'[^']*'/g, "''");

}

describe('package.json build scripts — POSIX shell compat (D-1460)', () => {

// Bun's Windows shell parser doesn't grok bash brace groups `{ cmd; }`.

// Bun 1.3.x on Windows also rejects subshells when the subshell or the

// command inside it uses redirection, so redirected commands must be direct.

test('no bash brace groups in any npm script', () => {

const offending: { script: string; pattern: string }[] = [];

for (const [name, body] of Object.entries(PKG.scripts)) {

const stripped = stripSingleQuoted(body);

const match = stripped.match(/\{\s+[^}]*;\s*\}/);

if (match) {

offending.push({ script: name, pattern: match[0] });

}

}

expect(offending).toEqual([]);

});

test('build script has no subshells with redirections', () => {

const offending: { script: string; pattern: string }[] = [];

for (const [name, body] of Object.entries({ build: PKG.scripts.build ?? '' })) {

const matches = [

...body.matchAll(/\([^)]*[<>][^)]*\)/g),

...body.matchAll(/\([^)]*\)\s*[<>]/g),

];

for (const match of matches) {

offending.push({ script: name, pattern: match[0] });

}

}

expect(offending).toEqual([]);

});

test('build script delegates .version writes to a shell script', () => {

// Bun rejects `( git ... ) > path/.version`.

const build = PKG.scripts.build ?? '';

expect(build).not.toMatch(/>\s*\S+\/\.version/);

expect(build).toBe('bash scripts/build.sh');

expect(BUILD_SCRIPT).toContain('bash scripts/write-version-files.sh');

});

});