del 5.0.0 not finding files in Windows

[aarongoldenthal]

System configuration:

• Windows 10 version 1809
• Node: v12.5.0

I upgraded a project today from del 4.1.1 to 5.0.0 and noticed that no files were being deleted with the following:

    const testDir = './tests/test-cases';
    del.sync([path.join(testDir, '*.html')]);

This has previously run nominally on both Windows and Linux. I tried using dry run with various options and no files were identified. I ultimately tried

    del.sync([path.join(process.cwd(), '**')], {dryRun: true});

to find anything, but it returned no files (although there are 12680 files).

I ran the same code on Linux in Node Docker containers, both latest (Node: v12.5.0), and LTS (Node v10.16.0), and everything was nominal (files deleted as expected, dry run showed expected files).

[sindresorhus]

Glob patterns can now only contain forward-slashes, not backward-slashes, so if you want to construct a glob pattern from path components, you need to use path.posix.join() instead of path.join().

This change is because of a change in fast-glob to allow escaping glob patterns: https://github.com/mrmlnc/fast-glob/releases/tag/3.0.0

[sindresorhus]

It is in the release notes.