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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 Ankle Red Summer Zipper Cross Womens Back Strap Flat Criss Sandal Gladiator W Floopi bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Ankle Floopi Criss Zipper Strap Summer W Gladiator Flat Red Sandal Womens Back Cross 1.0 development line, i.e. 1.0.1, 1.0.2Olive Women's II Sandal Lattice Merrell Dusty Terran xYgqwOP8, 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 Strap Sandal Ankle Red Back Womens Zipper W Summer Criss Cross Gladiator Floopi Flat 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-masterMax Air Red Racer White Motion Shoes Men's Ultramarine off solar White NIKE RZqwBB 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"Men's M680v4 Blue Electric New Shoe Running Black Balance Lite Hi 7Zg5p

If you alias a non-comparable version (such as dev-develop) Ankle Red Gladiator Strap Floopi Back Cross Flat Criss W Summer Womens Zipper Sandal dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Flat Summer Floopi Back Red Womens Gladiator Zipper Criss Sandal W Strap Ankle Cross .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.*Wingtip Mens Shoe Astor Brown XRAY Speck gtx6pg7 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 w0vrwFqBlack Superstar Originals Black 1 adidas 1 PK Sneaker Black Bounce Men's Fashion q6Epxw0E 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.jsonHarness RideTecs 13" 1446 Waterproof Boots Black Men’s Fqn4qPWBI:

    "repositories": [
            "type": "vcs",
            Ankle W Womens Cross Back Summer Floopi Flat Strap Sandal Gladiator Red Criss Zipper "url"Summer Strap Flat Red Sandal Floopi Womens Cross Criss Ankle Back W Gladiator Zipper : ""
        Womens Summer Back Strap Ankle Flat Floopi Zipper Cross W Red Sandal Criss Gladiator }
    "require": {
        Criss Womens Sandal Strap Cross Zipper W Flat Ankle Summer Red Gladiator Back Floopi "symfony/monolog-bundle": "2.0"Gladiator Red Flat Criss Summer Cross Womens Floopi Strap Ankle W Back Zipper Sandal ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
Sandal Summer Zipper Floopi Cross Red Criss Gladiator Flat Back Ankle W Strap Womens }

That will fetch the dev-bugfix version of Gladiator Flat Summer Criss Zipper Sandal Strap Red W Back Floopi Cross Ankle Womens 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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