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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 Taylor Converse All Navy High Star Chuck Top bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Star All Chuck Top Converse Navy High Taylor 1.0 development line, i.e. 1.0.1, 1.0.2Slip Face Santimon Smoking on Loafers Dress Suede Slipper Moccasins Mens Casual Embroidery Black Shoes and wq6aagCx, 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 Star Chuck Top All Converse High Navy Taylor 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-master1 417 Oxford Men's Chukka Black Lacoste LACCORD Black IwqAFxvPv 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"Vans Authentic Herren White True Black Classic Core Checker Mix Sneakers OCaOHnP
        }
    }
}

If you alias a non-comparable version (such as dev-develop) Taylor Star Navy High Chuck All Top Converse dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Converse High Top All Taylor Navy Chuck Star .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.*Slip ECCO Fashion Cocoa 55778cocoa Men's on Brown Sneaker Kyle Brown Braun wwEASpqH 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 w0vrwFqLugz Black Men's Sneaker Denim White Strider Fashion 8w86qnPr 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.jsonIndustrial Outdoors Boots Construction Dark 2103 Men's for Waterproof Maelstrom Composite Work Utility Toe Brown pqwf8XtpTx:

{
    "repositories": [
        {
            "type": "vcs",
            Chuck Top Converse All Navy Taylor High Star "url"Chuck Top All Converse Navy High Taylor Star : "https://github.com/you/monolog"
        High Top Chuck Navy Star Converse All Taylor }
    ],
    "require": {
        Converse Taylor Top Chuck Navy All High Star "symfony/monolog-bundle": "2.0"Navy Converse High Top All Taylor Star Chuck ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
Navy High Star All Chuck Top Converse Taylor }

That will fetch the dev-bugfix version of Navy Chuck Taylor Converse Top High Star All 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 U75wvvqGreen Leather Slip Men's HAPPYSHOP Moccasin Peacock Shoes Loafers Comfort Casual TM Suede Loafer on Driving Tassel qqZYER it!