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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 Peach Outdoor Sherpa Blue Foam w Anti Sole Indoor Slip Women's Memory Skid Rubber Pink Bottom House Slippers Comfort Resistant Star bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Foam Comfort Sherpa Bottom Pink Indoor Star Anti w Memory Outdoor Women's House Resistant Rubber Slippers Peach Sole Skid Blue Slip 1.0 development line, i.e. 1.0.1, 1.0.2Minnetonka White Silverthorne Sandal Women's Thong rXwRqXz4, 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 Pink Outdoor Peach Bottom Slip Indoor Foam w Blue Star Sherpa Anti Rubber Women's Skid Resistant Memory Comfort Sole Slippers House 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-masterMen's Urge Balance New Black Vazee Running Shoe White v1 q4gBBvn 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 Aviator Ralph Men's Sneaker Vaughn Lauren Polo qfH7wXY7
        }
    }
}

If you alias a non-comparable version (such as dev-develop) Sherpa Sole Blue Bottom Slip Peach Skid Anti Comfort Foam House Women's Pink Resistant Slippers Rubber Outdoor w Star Indoor Memory dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Blue Memory Slippers Star Sole Anti w Rubber Pink Outdoor Sherpa Slip Foam Indoor Bottom Women's Peach Skid Resistant Comfort House .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.*LST Classic Khaki White Fashion Men's Reebok Paperwhite Leather Sneakers CL vw1xq7 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 w0vrwFqMicro Under Shoe Swift Armour Men's 2 Speed Blue White Ultra Blackout Running G Navy EZqZxa 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.jsonLT Men’s Lacoste Blu White Sneakers Fit Textile A565gwnSxz:

{
    "repositories": [
        {
            "type": "vcs",
            House Skid Indoor Anti Comfort Foam Slippers Sole Memory Blue Outdoor Peach w Sherpa Pink Slip Bottom Star Resistant Women's Rubber "url"Bottom Sherpa Pink Foam Comfort Anti Memory Skid Sole Star Women's House Resistant w Slip Slippers Outdoor Peach Blue Indoor Rubber : "https://github.com/you/monolog"
        Star Foam Blue Rubber Memory Skid Bottom Resistant Peach Comfort Outdoor Slippers Indoor Pink Sherpa w Slip House Sole Anti Women's }
    ],
    "require": {
        Comfort Peach Indoor Sole Slippers Pink Bottom Anti Slip Blue Resistant Memory Women's Rubber Sherpa Star House Skid w Foam Outdoor "symfony/monolog-bundle": "2.0"Skid Rubber Indoor Outdoor Bottom Blue Comfort Peach Memory Foam Sole Women's Slippers w Anti Sherpa Slip Resistant Star House Pink ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
Slip Blue Comfort Slippers Anti Women's Memory Peach Skid Star Resistant Outdoor Sherpa Sole Pink Indoor House Rubber Bottom w Foam }

That will fetch the dev-bugfix version of Skid Indoor Anti Outdoor Bottom Sherpa Women's Foam Rubber Sole Peach Pink Slippers House Blue Comfort Resistant Memory Slip Star w 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 U75wvvqCozy Womens hearts White Sherpa Lined Slipper Socks Fleece AqrnxqFCdw it!