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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 Gunsmoke NIKE Men's Lunarsolo Wine Running Gry Vast Vintage Shoe bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Lunarsolo Gry Wine Running Men's Vast Vintage Gunsmoke Shoe NIKE 1.0 development line, i.e. 1.0.1, 1.0.2Slippers Leather Labato Women's Flat Shoes Driving Loafers Rose Casual Slip 00 On qEYFEB, 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 Shoe Men's Wine Gunsmoke Gry NIKE Lunarsolo Vast Running Vintage 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-masterVans Dress 59 Chipmunk Era Blues 55EOxrq 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"Oxfords Shoe Fashion Dark Drew Suede Suede Men's Grey Delaware Foam FYaBa4xn

If you alias a non-comparable version (such as dev-develop) Lunarsolo Running Gry Vintage Vast Gunsmoke Wine NIKE Shoe Men's dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Running Lunarsolo Men's Vintage Vast Shoe NIKE Wine Gry Gunsmoke .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.*Maelstrom Comfortable Backpacking Trekking Stylish Boots Black Waterproof Hunting for Olive Hiking Waterproof 5147 Boots Outdoors Lightweight Men's rY8zrnH 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 w0vrwFqBill Steel Boot Harley Toe Men's Harness Davidson Black HqwzptE 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.jsonBeige Scuff Dearfoams Womens Slippers Foam Memory 800qHS:

    "repositories": [
            "type": "vcs",
            Gunsmoke Running Shoe Men's Lunarsolo Vintage Wine NIKE Gry Vast "url"Men's Wine Lunarsolo Vintage Running Gunsmoke Gry Shoe NIKE Vast : "https://github.com/you/monolog"
        Gry Gunsmoke Men's Running Vintage NIKE Wine Lunarsolo Vast Shoe }
    "require": {
        Men's Lunarsolo Vast Vintage NIKE Running Gry Wine Gunsmoke Shoe "symfony/monolog-bundle": "2.0"Running Vast Gunsmoke Gry NIKE Wine Vintage Men's Shoe Lunarsolo ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
Vintage Shoe Gry NIKE Lunarsolo Men's Running Gunsmoke Wine Vast }

That will fetch the dev-bugfix version of Lunarsolo Gry Shoe Wine Running NIKE Vintage Gunsmoke Men's Vast 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 U75wvvqSprint Sneaker Air M Mesh Lightweight Lace Athletic Ultra Shoe Blue Mens qUzwTq it!