Add support to resolve globstar when creating FileIterator

[nicDamours]

Summary

Currently, glob are supported, but only using the default glob php function, which is quite limited. The default glob function doesn't allow for the usage of "globstar", which is a pretty common practice when targeting files using glob patterns.

Problem

Without globstar, we are limited to a single level of "unspecified" directory, when using filter in libraries such as phpunit. Take the following structure as example.

root_directory
├── directory_1
│   └── target_directory
└── directory_2
    └── directory_2_1
        └── directory_2_1_1
            └── target_directory

Using the current implementation of the Factory::resolveWildcards function, we can use the following pattern to target the directory target_directory right under directory_1:

root_directory/*/target_directory

However, it is not possible to target the target_directory under directory_2_2_1, since the glob pattern is only looking at the first level. It basically translates to root_directory/{any directory}/target_directory.

This means we need to pass multiple patterns to the filter in order to target all target_directory.

root_directory/*/target_directory
root_directory/*/*/*/target_directory
...

This solution is problematic when the directory structure changes a lot, which is pretty common when building complex projects.

Solution.

There are a few solutions, online, to extend the glob function behaviour to include globstar. One such solution can be found here..

I tried to implements this particular solution and it seams to be working fine in my local environment.

I will try to submit a PR that could fix the issue.

[Wulfheart]

What a coincidence that I had the same problem today ^^