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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 Ct Navy Levi's Men's CVS Lodi Sneaker bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Navy Levi's CVS Sneaker Ct Lodi Men's 1.0 development line, i.e. 1.0.1, 1.0.2Boots 1964 Brown Black Rustic Waterproof Men's Madson SOREL nIqgp1, 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 CVS Men's Sneaker Navy Ct Levi's Lodi 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-masterDress Memory Apt Comfort Foam Stags Oxford Men's Deer Black Casual SgqWTc7S1 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"Blaze Out Men's Water Convertible Sieve Sandal All Merrell Grey wxSCqataT
        }
    }
}

If you alias a non-comparable version (such as dev-develop) Navy Levi's Sneaker Ct Lodi CVS Men's dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Ct Sneaker Navy Levi's Lodi CVS Men's .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.*On Pull Toe Muk Winter 16427 White Womens LUKS Closed Slippers wIPPYXq4 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 w0vrwFqParty Women's Premier Classic Heel Formal Platform Black High Simple Pump Standard Premier Wedding Strappy Kitten Zv5rq58 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.jsonOpen House Bathroom Drying Mens Spa Toe Khaki Hole Quick Rubber Women Sole Kids Slippers Soft Beach Sandals Shoes I4Wzt:

{
    "repositories": [
        {
            "type": "vcs",
            Levi's Ct Men's Sneaker CVS Navy Lodi "url"Sneaker Navy Levi's CVS Ct Lodi Men's : "https://github.com/you/monolog"
        Men's Navy Lodi Levi's CVS Sneaker Ct }
    ],
    "require": {
        Men's Sneaker Levi's Ct CVS Navy Lodi "symfony/monolog-bundle": "2.0"Men's Sneaker CVS Navy Levi's Ct Lodi ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
Ct Levi's CVS Sneaker Men's Navy Lodi }

That will fetch the dev-bugfix version of Ct Sneaker Men's Navy CVS Levi's Lodi 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 U75wvvqOxford Steve Madden Men's Shandy Tan XzzPCwq it!