How to Use Composer to Require a Forked Repository on Github?

Requiring a Fork with Composer

Requiring a fork on Github using composer can present challenges, exemplified by the error encountered when trying to use Nodge's fork of lessphp. The most straightforward solution to this issue involves utilizing a VCS repository.

Under this approach, the fork can be added as a repository and the version constraint adjusted to point to the custom branch. Notably, the custom branch name must be prefixed with "dev-."

For instance, if a fork of "monolog/monolog" was created with a branch named "bugfix," the composer.json file should be updated as follows:

{
    "repositories": [
        {
            "type": "vcs",
            "url": "https://github.com/igorw/monolog"
        }
    ],
    "require": {
        "monolog/monolog": "dev-bugfix"
    }
}

Unlike in the erroneous example, the "require" statement remains unchanged except for the specification of the bugfix branch. The upstream package (monolog/monolog) continues to be referenced, not the personal fork (igorw/monolog), and the branch name is prefixed with "dev-."

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