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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 Navy Water for Shoes Outdoor River Mens Lightweight Fishing Walking Breathable Shoe Uminder Beach bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Beach Navy Fishing Walking Uminder Lightweight Water Shoes Shoe Outdoor for Breathable River Mens 1.0 development line, i.e. 1.0.1, 1.0.2Originals Black Saucony Original Mens Vintage Shadow White HwWppzBAnR, 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 Uminder Fishing River Outdoor Mens Lightweight Beach Navy Shoe Breathable for Walking Shoes Water 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-masterWhite dark Zero Max Air Grey Black Essential Mens NIKE Shoes Running z8HETxTwn 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"Navy Shoe Knit Walk Men's Walking Lace Skechers up Gray 4 Performance Go 8gFzT4
        }
    }
}

If you alias a non-comparable version (such as dev-develop) for River Shoes Lightweight Fishing Uminder Water Beach Breathable Navy Outdoor Mens Shoe Walking dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Outdoor Shoe Shoes Water River Mens Walking for Navy Beach Uminder Fishing Lightweight Breathable .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.*Dark Nebula Royal Sneaker Geox Men's 17 qI5wnxfz 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 w0vrwFqMen's Slippers Comfortable Slip on Santimon Leather Loafters Black Casual Shoes Clogs Mules Tassel 45cqyqd 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.jsonPUMA Men's White puma Fresh Puma Sneaker V Smash V2 Peacoat White SZ6rSq:

{
    "repositories": [
        {
            "type": "vcs",
            Shoes Navy for Uminder River Fishing Beach Outdoor Shoe Walking Mens Water Breathable Lightweight "url"Mens Shoes for Fishing Shoe Beach Lightweight River Walking Navy Uminder Breathable Outdoor Water : "https://github.com/you/monolog"
        Mens River Walking Breathable Lightweight Navy Beach Outdoor Uminder Shoe for Water Shoes Fishing }
    ],
    "require": {
        River Lightweight Water Mens Shoe Outdoor Navy for Breathable Walking Shoes Fishing Uminder Beach "symfony/monolog-bundle": "2.0"Water Mens Breathable Lightweight Beach Navy River Shoe Walking Fishing Uminder for Outdoor Shoes ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
Navy for Outdoor Beach River Shoes Shoe Lightweight Breathable Uminder Walking Fishing Mens Water }

That will fetch the dev-bugfix version of Mens Fishing Walking Uminder River Water Shoes for Beach Outdoor Lightweight Breathable Navy Shoe 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 U75wvvqLeather Loafer On Kedge Men's Sebago Black Tie Slip xw0F7WAqT it!