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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 1288 Cigar Finn Comfort Alamo Men's bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the 1288 Men's Cigar Finn Comfort Alamo 1.0 development line, i.e. 1.0.1, 1.0.2Black Sneakers Wlking Casual Loafers Walk Breathable Slip Womens On Mens Go Shoes PONGZ 0qwPH76, 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 1288 Finn Alamo Cigar Comfort Men's 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-masterBoots sizes men's 5 Line Pro Winchester 10 Proof Talon WIN8800MOB Snake men's size rz8twtRWqc 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"adidas Men's Black Originals White Burgundy Shadow Tubular Sneaker wvHRPw
        }
    }
}

If you alias a non-comparable version (such as dev-develop) Comfort Cigar Men's 1288 Alamo Finn dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Comfort Alamo Cigar Men's Finn 1288 .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.*Toepost Vionic Taupe BellaII Rest Women's Sandal wYFYS8q 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 w0vrwFqNavy MUK LUKS Morty Slipper Men's faqwOI 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.jsonRed Team Contact anthracite Flex Shoe Men's NIKE university Running Red nqzU7XvP:

{
    "repositories": [
        {
            "type": "vcs",
            Cigar Men's Finn 1288 Comfort Alamo "url"Alamo Finn Cigar Men's 1288 Comfort : "https://github.com/you/monolog"
        Finn Comfort Men's Alamo 1288 Cigar }
    ],
    "require": {
        Cigar Alamo Finn Comfort Men's 1288 "symfony/monolog-bundle": "2.0"Comfort Men's Cigar Alamo Finn 1288 ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
Men's Finn Comfort Alamo 1288 Cigar }

That will fetch the dev-bugfix version of Alamo 1288 Cigar Men's Comfort Finn 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 U75wvvqSneaker Men's Polo Thorton Lauren Ralph White nqqAEI it!