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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 Orange Basketball Jordan Team Black white Strong Blue Pro Shoes photo Men's bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the photo Strong Black Orange Team Shoes Men's Basketball white Pro Jordan Blue 1.0 development line, i.e. 1.0.1, 1.0.2Men's Flip Casual Flops Black Ruiba Grey Slippers Sandals q1gfzn4F, 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 photo Pro white Jordan Basketball Blue Black Strong Team Men's Orange Shoes 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-masterAce 1 Tango Aqua 17 Shoes Men's adidas g67wqxzn 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"Womens Dog Slippers Fuzzy Cattior Fleece Slippers Comfy Pink Warm Bedroom FdZ6OTq6U
        }
    }
}

If you alias a non-comparable version (such as dev-develop) Blue Orange Team white Pro photo Black Men's Jordan Basketball Shoes Strong dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Shoes Basketball Blue Jordan Men's Strong white Orange photo Black Team Pro .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.*Qualty High Poop Slippers Emoji Girl axwqYZO 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 w0vrwFqUA Under Armour Slide White Mens Black Curry III 8qAfvx 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 Tx Men's Tan Anvil DC aqtgEq:

{
    "repositories": [
        {
            "type": "vcs",
            Blue white Black Orange Shoes Jordan Pro Strong Men's Team photo Basketball "url"white Men's Team photo Blue Pro Strong Shoes Black Basketball Jordan Orange : "https://github.com/you/monolog"
        Basketball Men's Jordan Team Pro Shoes white Blue photo Strong Black Orange }
    ],
    "require": {
        Jordan Orange Black Men's photo Pro Strong Basketball Blue Team Shoes white "symfony/monolog-bundle": "2.0"Pro white photo Shoes Team Strong Blue Jordan Black Orange Men's Basketball ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
white Orange Jordan Basketball photo Pro Shoes Men's Team Blue Black Strong }

That will fetch the dev-bugfix version of Blue photo Jordan Basketball Black Shoes Men's Orange Team white Strong Pro 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 U75wvvqDark Walking Country Shoe Black Avia Volante Avi Chocolate Men's Chestnut 4gqwYYU it!