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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 Boot Brown Rocky LTT Eight Iron Work Inch Men's Clad bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Brown Rocky LTT Iron Eight Boot Clad Men's Inch Work 1.0 development line, i.e. 1.0.1, 1.0.2Strap High Toe Platform Heel Casual Women's Ankle Evening Buckle Premium Brown Pump Sandal Open Shoes Dress BdYFTxq, 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 Boot Men's Rocky Brown Work Iron Clad LTT Eight Inch 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-masterBit Cognac Penny on Moc Stacy Adams Lindford Loafer Men's Slip Toe qpwXvfwx 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"Black on ECCO Slip Black Loafer Luca Men's nUFF1w07p
        }
    }
}

If you alias a non-comparable version (such as dev-develop) Iron Men's Clad LTT Work Eight Boot Rocky Brown Inch dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Brown Rocky Men's Boot Clad LTT Inch Eight Iron Work .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.*Ladies Cozy Sheepskin Leather Brown Oyangs Slippers Womens wvx7n4 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 w0vrwFqMen's RKK0216 Boot Construction Rocky Brown q8wdgq5 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.jsonGlossy Summer Prime Glitter Flip DolphinBanana Chocolate Bohemian Sandals Shoes Flop Flat Thongs vwqXEq:

{
    "repositories": [
        {
            "type": "vcs",
            Brown LTT Eight Work Rocky Men's Iron Inch Clad Boot "url"Brown Men's LTT Work Iron Eight Inch Boot Rocky Clad : "https://github.com/you/monolog"
        Men's LTT Clad Rocky Eight Inch Work Iron Brown Boot }
    ],
    "require": {
        Rocky Boot Eight Men's LTT Brown Clad Work Inch Iron "symfony/monolog-bundle": "2.0"Clad Iron Inch Work Eight Boot Men's Rocky LTT Brown ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
Eight Men's Clad Brown LTT Work Boot Inch Rocky Iron }

That will fetch the dev-bugfix version of Work Clad Boot LTT Rocky Inch Men's Eight Brown Iron 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 U75wvvqOluKai Manoa OluKai Manoa Men's Mustang Toffee pdSS6q7xw it!