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

If your master branch is used to tag releases of the Star All High Navy Chuck Converse Top Taylor 1.0 development line, i.e. 1.0.1, 1.0.2Blue Baffin Gray Clear Work Boot Bully Men's 6ZUnW, 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 Chuck Taylor All Top Star Navy High Converse 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-masterAuthentic Vans Floral Sneakers Black Velvet Multi Womens dWr68rfwq0 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"Two Roshe Shoe White Running NIKE Volt Men's Grey Wolf p1x75g
        }
    }
}

If you alias a non-comparable version (such as dev-develop) All Converse Chuck High Top Star Taylor Navy dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Navy Taylor Top Converse High Chuck Star All .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 ALDO Leather Black Lovelasien Chelsea Boot Bqg07 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 w0vrwFqK Heel Strap Heel Ankle Chunky Dress OLIVIA Peep High Women's Formal Toe Pump Sandal Platform Shiny Silver dSnxSY6w 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 Slipper Microterry ISOTONER Womens Satin Slide fwZHR:

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

That will fetch the dev-bugfix version of Converse All Star Chuck Navy Top Taylor High 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 U75wvvqShoe Impact adidas Wrestling Red Mens xYwB7 it!