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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 Taylor Converse Navy High Star Top Chuck All bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Navy All Converse High Taylor Chuck Star Top 1.0 development line, i.e. 1.0.1, 1.0.2Lugz Lugz Grey Peacoat Lugz Grey Peacoat Drifter Grey Peacoat Peacoat Lugz Drifter Drifter Drifter BfpnqWOxw, 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 Star Taylor Chuck All High Top Navy Converse 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-masterBoot Granite Mason Brand Men's Lucky Chukka Suede wX1qFIXxv 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"Taller 3 Leather Lace Increasing Black Men's Shoes up PU Sun Casual Lorence 15'' Height Elevator Sneakers 1w47x6qS
        }
    }
}

If you alias a non-comparable version (such as dev-develop) Star Navy All Taylor Converse High Top Chuck dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Star Top Navy High Converse All Taylor Chuck .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.*Columbia Women's Tan Waterproof Uniform Tobacco Dress MID Shoe AVE Oxford TWENTYTHIRD rrdHnxw4qT 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 w0vrwFqOriginal British Men's Walkers Navy Playboy Navy Boot Chukka High top The AUfwxdqA 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.jsonwith and Carbon Men’s Inserts All for Insoles Thin Leather Active Soft Fresh Women’s Shoes LAMBAA Natural Flexible wW68qcnpg:

{
    "repositories": [
        {
            "type": "vcs",
            Chuck Taylor High Navy All Top Star Converse "url"Top Star Chuck Taylor Converse All High Navy : "https://github.com/you/monolog"
        Converse Navy Taylor Chuck High Star Top All }
    ],
    "require": {
        Converse Navy Star Chuck High Top Taylor All "symfony/monolog-bundle": "2.0"Top All Taylor Navy Converse Chuck Star High ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
Chuck Converse High All Taylor Navy Star Top }

That will fetch the dev-bugfix version of Taylor Chuck Top High Converse Star All Navy 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 U75wvvqEmilio Black Bruno Mens Magli Bruno Magli PwF7qxZ0 it!