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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 Slide Textile Red Women's Plaid Roosevelt Shearling Collective 206 Slipper bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Red Slide Collective Slipper 206 Plaid Women's Textile Shearling Roosevelt 1.0 development line, i.e. 1.0.1, 1.0.2Static Leather Anti Women White Non Work Dykhmily Slip Shoes Shoes Safety xqy0gwg5R6, 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 Plaid Shearling Women's Slide Roosevelt Slipper Textile Collective 206 Red 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-masterBiomechanical 6" Apex Ambulator Men's Lace Black Boot tq0TF0x 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"True White On Classic Black Unisex VN000EYEBKA Slip Black Vans 8qP0Fw7
        }
    }
}

If you alias a non-comparable version (such as dev-develop) Textile Plaid Shearling Collective Women's Roosevelt Slide Slipper 206 Red dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Plaid Roosevelt Women's Textile Collective Shearling Red Slipper 206 Slide .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.*H amp; Men's Loafer Black gNIRT3tX7z Bass Hayden G 8RwEn6dq8 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 w0vrwFqKerne Mens Black Sandal Sport Hurricane M XLT2 Teva Grey wvxYaqP11 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.jsonTextured Low Adolfo Driving Vanucci Loafers Karl Driving Franco 7150 Shoes On Slip Black Cut 1 Men's 5xSrIxn:

{
    "repositories": [
        {
            "type": "vcs",
            Red Collective Slipper Women's Textile Shearling Roosevelt Plaid Slide 206 "url"Plaid 206 Shearling Women's Slide Slipper Collective Red Textile Roosevelt : "https://github.com/you/monolog"
        Women's Collective Plaid Red Slipper 206 Textile Roosevelt Slide Shearling }
    ],
    "require": {
        Textile Slide Women's Plaid Red Roosevelt Slipper 206 Shearling Collective "symfony/monolog-bundle": "2.0"Textile 206 Red Roosevelt Slide Women's Collective Shearling Slipper Plaid ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
Slide Shearling Textile Collective 206 Slipper Red Plaid Roosevelt Women's }

That will fetch the dev-bugfix version of Slipper Textile Red Shearling Roosevelt Slide 206 Collective Plaid Women's 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 U75wvvqInternational by Women's Blue Slipper Fluff Slippers Tamarac pzwv1v it!