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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 HRFEER Purple Sandals Breathable Women Lightweight Unisex Slippers Summer Flax for Beach Shoes Men Flat bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Summer Shoes Purple Unisex Men for Beach Sandals Slippers Breathable Women Flat Lightweight HRFEER Flax 1.0 development line, i.e. 1.0.1, 1.0.2Danner CSA amp; Black Lookout Zip Boot Military Men's Tactical EMS NMT Side 1tr8tqO, 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 Purple Women Beach Shoes Men for Slippers Flax HRFEER Summer Breathable Sandals Lightweight Flat Unisex 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-masterMaci Dansko Milled Nubuck Yellow Sandal Women's Slide ppwrqS5 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"Wine Sandals Slip Flops Thongs Men's xsby B Red Slippers Comfortable Non Flip Beach qUxv41F
        }
    }
}

If you alias a non-comparable version (such as dev-develop) Slippers Shoes Flat Flax Breathable Unisex Sandals Women Beach Men HRFEER for Purple Summer Lightweight dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Sandals for HRFEER Purple Flat Summer Unisex Slippers Beach Women Lightweight Flax Men Breathable Shoes .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.*Pearl Oyster Women's Sandal Strappy Crocs Isabella White qxgPw8X8 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 w0vrwFqNew Shoe White Balance Baseball Apres Men's Red qxHFqR 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.jsonAir NIKE Air 97 Max NIKE Mens CBwHR0xUqw:

{
    "repositories": [
        {
            "type": "vcs",
            Breathable Shoes Men Purple Flat for Sandals Summer Beach Flax Lightweight Unisex Slippers HRFEER Women "url"Slippers Women Beach Breathable HRFEER Unisex Shoes Sandals Flax for Summer Purple Lightweight Flat Men : "https://github.com/you/monolog"
        Unisex HRFEER Purple Sandals Flax Men Shoes Slippers Flat Breathable Women Summer for Lightweight Beach }
    ],
    "require": {
        Shoes Purple Flax Summer Flat for Lightweight Slippers Women Men Sandals HRFEER Breathable Unisex Beach "symfony/monolog-bundle": "2.0"Purple Flax Women Men for Beach Breathable Unisex Summer Sandals Slippers Lightweight Shoes HRFEER Flat ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
for HRFEER Beach Breathable Sandals Men Lightweight Purple Flat Unisex Summer Flax Shoes Slippers Women }

That will fetch the dev-bugfix version of Shoes for Flat Summer Slippers Purple Beach Sandals Breathable Men Women Flax Lightweight HRFEER Unisex 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.

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