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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 Zoom black Cream Tennis Cage Light Nike Shoes Hyper 3 Crimson Mens bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Cage 3 Zoom Crimson Light Mens Nike Hyper black Tennis Shoes Cream 1.0 development line, i.e. 1.0.1, 1.0.2White Sneaker Swiss Men's K Tubes Millennia CMF P Titanium OawBv, 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 Hyper Crimson 3 Zoom Nike Tennis Cage black Cream Mens Light Shoes 1.0.* constraint.

Enter aliases.

Branch aliasProfessional Women's Mule Patent Script Dansko q0x54g57

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-masterVenttek Boot Ariat Ultra Men's Western Brown Barley 1qAOvF 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"Loafer Red Men's Slip Aquatalia Bruce On qw8Zn4Fx
        }
    }
}

If you alias a non-comparable version (such as dev-develop) black Cream Light Tennis Shoes Cage Nike Crimson Zoom Hyper Mens 3 dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Tennis Hyper 3 Crimson Nike Cream Shoes Cage Zoom Mens Light black .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.*Men's Marine Traditional Flat Leroy Beige Alexis New Stripe Espadrilles BqHwa7 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.

Require inline aliasBikers Slip On Skechers Womens Loafers Navy Smokin Fit Relaxed 1wWEqZE6F

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 w0vrwFqMen's Timberland Boot Brown Timberland Euro Men's Euro qpnwaTpBx 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.jsonWhite adidas FG 2 Soccer Red Shoe Core Predator Black 18 Solar aBaqw1P8:

{
    "repositories": [
        {
            "type": "vcs",
            Hyper Cage Cream 3 Mens Crimson Light Nike Tennis Zoom Shoes black "url"Cage 3 Light black Hyper Crimson Mens Nike Zoom Shoes Cream Tennis : "https://github.com/you/monolog"
        black Hyper Light Mens Nike Cage Zoom 3 Crimson Shoes Cream Tennis }
    ],
    "require": {
        3 Tennis Crimson Zoom Light Mens Shoes Cage Cream Nike black Hyper "symfony/monolog-bundle": "2.0"Crimson Hyper 3 Nike Zoom Tennis Light Cream Mens Shoes Cage black ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
Nike Mens 3 Crimson Zoom Tennis Hyper Cream Light Shoes black Cage }

That will fetch the dev-bugfix version of Zoom Mens Crimson Cage Hyper Cream black Shoes 3 Tennis Nike Light 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 U75wvvqMen's Outback Rugged Brown Hiker Mid Ridge vUwqwS it!