glob: Pattern with trailing / unexpectedly matches a file.

[dbartol]

Describe the bug
When implicitDescendants is true (the default), a pattern with a trailing slash will match a file path, rather than just a directory path as intended. For example, the pattern foo/ will match a file named foo, rather than just a directory named foo. This behavior is inconsistent with other common glob implementations, include .gitignore and node-glob. It also means that there is no way to specify a pattern that matches only files.

To Reproduce
Run the following TypeScript code:

import * as glob from '@actions/glob';
import * as fs from 'fs';

async function repro(): Promise<void> {
  const globber = await glob.create('foo/', {
    implicitDescendants: true
  });

  await fs.promises.writeFile('foo', 'text');

  const matches = await globber.glob();
  console.log(matches);
}

repro();

Expected behavior
No matches are found by the globber.

Actual behavior
Output (when run from C:\Src\Repro):

::debug::implicitDescendants 'true'
::debug::followSymbolicLinks 'true'
::debug::implicitDescendants 'true'
::debug::omitBrokenSymbolicLinks 'true'
::debug::Search path 'C:\Src\Repro\foo'
[ 'C:\\Src\\Repro\\foo' ]

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Windows 10
• Browser: N/A

[luketomlinson]

Resolved by #805