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Why aliases?NIKE White Court Men's University Black Red Shoes Tennis Lite rq4rXw1

When you are using a VCS repository, you will only get comparable versions for branches that look like versions, such as 2.0 or 2.0.x. For your master branch, you will get a dev-master version. For your OLUKAI Dark Java Ray Ohana Men's bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Dark Java Men's OLUKAI Ohana Ray 1.0 development line, i.e. 1.0.1, 1.0.2NIKE Black Cool IC Shoe Grey Volt Men's Soccer Bombax U1XrYUHq, 1.0.3, etc., any package depending on it will probably require version 1.0.*.

If anyone wants to require the latest dev-master, they have a problem: Other packages may require 1.0.*, so requiring that dev version will lead to conflicts, since dev-master does not match the Dark OLUKAI Ohana Java Ray Men's 1.0.* constraint.

Enter aliases.

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The dev-master branch is one in your main VCS repo. It is rather common that someone will want the latest master dev version. Thus, Composer allows you to alias your dev-masterSlip 4 Floor Women Slippers Sandals Beautylife88 Men Non Indoor Bathroom Slipper House wC6Xnaxq17 branch to a 1.0.x-dev version. It is done by specifying a branch-alias field under extra in composer.json:

{
    "extra": {
        "branch-alias": {
            "dev-master": "1.0.x-dev"ribbon Wired Red White PUMA puma Sneaker Ribbon Men's Red Y5HxwnqvXw
        }
    }
}

If you alias a non-comparable version (such as dev-develop) Ohana Men's OLUKAI Ray Dark Java dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Java Dark OLUKAI Men's Ray Ohana .x-dev), but only as a more specific version. For example, 1.x-dev could be aliased as 1.2.x-dev.

The alias must be a comparable dev version, and the branch-alias must be present on the branch that it references. For dev-master, you need to commit it on the master branch.

As a result, anyone can now require 1.0.*Pink Baby Comfort Skid The Socks Bed Original Anti wxqXURz and it will happily install dev-master.

In order to use branch aliasing, you must own the repository of the package being aliased. If you want to alias a third party package without maintaining a fork of it, use inline aliases as described below.

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Branch aliases are great for aliasing main development lines. But in order to use them you need to have control over the source repository, and you need to commit changes to version control.

This is not really fun when you want to try a bugfix of some library that is a dependency of your local project.

For this reason, you can alias packages in your require and require-dev fields. Let's say you found a bug in the monolog/monolog package. You cloned HOKA Blue SS17 ONE Shoes Hoka 5 ONE Charcoal Bondi Grey Running w0vrwFqVaider Supra Black Black Micorperf Gunny LC Leather Sneaker Tuf qAdaxSArw on GitHub and fixed the issue in a branch named bugfix. Now you want to install that version of monolog in your local project.

You are using symfony/monolog-bundle which requires monolog/monolog version 1.*. So you need your dev-bugfix to match that constraint.

Add this to your project's root composer.jsonKnit Black Casual Dress Privett Oxford Leather Mens with NeverWet Dockers Shoe qwCf7Pf:

{
    "repositories": [
        {
            "type": "vcs",
            Men's Java Ohana OLUKAI Ray Dark "url"Ray Dark OLUKAI Ohana Java Men's : "https://github.com/you/monolog"
        Java Dark Men's Ohana OLUKAI Ray }
    ],
    "require": {
        Dark Ohana OLUKAI Java Ray Men's "symfony/monolog-bundle": "2.0"Dark Ohana Java Men's OLUKAI Ray ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
Ohana Men's Ray Java Dark OLUKAI }

That will fetch the dev-bugfix version of Dark Ohana OLUKAI Java Men's Ray monolog/monolog from your GitHub and alias it to 1.0.x-dev.

Note: Inline aliasing is a root-only feature. If a package with inline aliases is required, the alias (right of the as) is used as the version constraint. The part left of the as is discarded. As a consequence, if A requires B and B requires monolog/monolog version dev-bugfix as 1.0.x-dev, installing A will make B require 1.0.x-dev, which may exist as a branch alias or an actual 1.0 branch. If it does not, it must be inline-aliased again in A's composer.json.

Note: Inline aliasing should be avoided, especially for published packages/libraries. If you found a bug, try and get your fix merged upstream. This helps to avoid issues for users of your package.

Found a typo? Something is wrong in this documentation? Slippers by Slipper Red Molly Women's International Tamarac Blitz Faux Low U75wvvq8 Sandal PAIRS DREAM gold Wedge 10 Women's Formosa wdFwSqfY it!