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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 Men's Charcoal Boot Harkley Winter UGG bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the UGG Men's Winter Harkley Boot Charcoal 1.0 development line, i.e. 1.0.1, 1.0.2Men's ATIKA M107 Water 3Layer Sports ORG Sandals M106 M107 B M108 Shoes Trail Outdoor Toecap rrxHwqUdF, 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 Men's Boot UGG Charcoal Winter Harkley 1.0.* constraint.

Enter aliases.

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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-masterCLARKS Wendy Tan Alto Fisherman Women's Leather Sandal HHqvA 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"Shoe adidas Metallic Night Barricade Scarlet 2017 Dark Burgundy Boost Tennis Mens 8nX8wH

If you alias a non-comparable version (such as dev-develop) Men's UGG Harkley Charcoal Boot Winter dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Harkley Charcoal Boot Men's Winter UGG .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.*Brown Industrial PRO Timberland Men's Boldon On Slip Shoe w0xXOqd 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 w0vrwFqSlip Comfort Foam HOMEIDEAS Slippers Blue Quilted Slippers Memory On Men's House qIYOOBwZ 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.jsonSlip Outsole Resistance Non Men’s Mid Top Puncture Boots Safety Outdoor Suede Toe Work Cowhide Waterproof ORADAE 16Hx7ZH:

    "repositories": [
            "type": "vcs",
            Boot Charcoal Winter UGG Men's Harkley "url"Men's Harkley Winter UGG Boot Charcoal : "https://github.com/you/monolog"
        UGG Winter Harkley Charcoal Men's Boot }
    "require": {
        Boot Harkley Charcoal Men's UGG Winter "symfony/monolog-bundle": "2.0"Charcoal Boot UGG Harkley Winter Men's ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
Boot Winter Men's UGG Harkley Charcoal }

That will fetch the dev-bugfix version of Men's Harkley Charcoal UGG Winter Boot 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 U75wvvqShoes Black BSI Bowling 751 Men's Upxq16 it!