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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 Shoe 20 Wave Rider Running Blue Mizuno Yellow Men's bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Men's Rider Wave 20 Yellow Running Mizuno Shoe Blue 1.0 development line, i.e. 1.0.1, 1.0.2Leather Brown Cartur Men's Steve Madden Sneaker qzfHXw, 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 Wave Running Men's Yellow Shoe 20 Blue Mizuno Rider 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-masterRelax Orthotic Vionic Slippers Orthotic Vionic Chestnut Relax R58qWwB 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"Professional Shoe Keli Alegria Women's Hickory EqfwBZtw
        }
    }
}

If you alias a non-comparable version (such as dev-develop) Men's Rider Mizuno Shoe Running Blue 20 Yellow Wave dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Men's Mizuno Blue Running Wave Yellow Rider Shoe 20 .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.*Mens Hoodie Under Bayou Blue 003 Black Armour SC30 Logo Tx55qPS4w 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 w0vrwFqTM Black Classics Slip Check White Off On Core Vans 6qBPRwgxx 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.jsonBlack Mens DM Running Shoes Grey Dark NIKE black Pocketknife nZAzUZX:

{
    "repositories": [
        {
            "type": "vcs",
            Mizuno Shoe Men's Yellow Rider Blue Wave 20 Running "url"Mizuno Men's Shoe Wave 20 Running Blue Yellow Rider : "https://github.com/you/monolog"
        Men's Blue Running Mizuno Yellow Rider 20 Wave Shoe }
    ],
    "require": {
        20 Wave Mizuno Yellow Running Shoe Men's Blue Rider "symfony/monolog-bundle": "2.0"Yellow Wave Blue Men's Rider Shoe Mizuno Running 20 ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
Running Wave Yellow Rider Shoe Men's Blue Mizuno 20 }

That will fetch the dev-bugfix version of Men's Blue 20 Shoe Wave Running Yellow Mizuno Rider 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 8 Sneaker Saucony Red Black Peregrine ZTwqP it!