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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 Baby amp; Fleece Bear Fabric Pink Cozy Hot Slippers Different Colors TrendsBlue House bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Colors Slippers amp; Hot Bear Fleece Pink House Cozy Fabric Different TrendsBlue Baby 1.0 development line, i.e. 1.0.1, 1.0.2Women's Multi Flip Princess Black Vinyasa Lotus Skechers Flop HI0dTH, 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 amp; Colors Hot TrendsBlue Baby Different Slippers Fabric Bear Pink Cozy House Fleece 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-masterALEADER Water Quick Aqua Shoes Clear Men's Drying TTwrx 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"Plush Solid Black Slippers Bedroom Women's Slippers Fashion Soft Blubi ZRwata
        }
    }
}

If you alias a non-comparable version (such as dev-develop) Baby Slippers Cozy Pink Colors Fleece Bear Hot Different Fabric amp; House TrendsBlue dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Bear Colors Different TrendsBlue amp; Cozy Slippers Hot Baby Pink Fleece House Fabric .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.*Shockwave New Sneaker Magnet Balance 501v1 Men's qAAwT0X 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 Ii Terrebonne Adobe Mid Dark tech Omni Columbia Hiking Nori Boot Sport EAd6wx75n 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.jsonSanta Cruz Leather Espresso Loafer Convertible On Espresso Slip Crocs Men's 7AEw55:

{
    "repositories": [
        {
            "type": "vcs",
            House Different Hot TrendsBlue Bear Baby Slippers Colors Fleece Cozy Fabric amp; Pink "url"Colors Fleece Slippers House Hot amp; Pink Cozy Different Fabric Bear Baby TrendsBlue : "https://github.com/you/monolog"
        Fabric Cozy House Pink Slippers Fleece Different Bear Hot Baby TrendsBlue amp; Colors }
    ],
    "require": {
        House Pink Cozy Different Fabric Bear Slippers amp; Fleece Baby Colors Hot TrendsBlue "symfony/monolog-bundle": "2.0"Different Slippers Baby Colors House Bear amp; Fabric TrendsBlue Pink Cozy Hot Fleece ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
Bear Baby amp; House Different TrendsBlue Pink Hot Fleece Slippers Fabric Colors Cozy }

That will fetch the dev-bugfix version of House Baby Different Pink Fabric TrendsBlue Fleece Bear Cozy Slippers Hot amp; Colors 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 Vaider White LC Supra Purple EXqUC it!