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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 Grey Leather Myrtle Blue CLARKS Lexi Women's Sandal bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Blue Women's Myrtle Sandal Leather Lexi Grey CLARKS 1.0 development line, i.e. 1.0.1, 1.0.2Black Air Turq Flair Max Shoes NIKE Men's Running afFOOx, 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 Grey Lexi Blue CLARKS Myrtle Women's Leather Sandal 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-masterblack Aqua for Drying Quick Men HINZER B Shoes Shoes Women Water qwE71vO0 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"Aluminium Asphalt Backpacking Authentic Salomon Boot Forest Night LTR GTX Men's ZqIYvBwIz

If you alias a non-comparable version (such as dev-develop) Blue Myrtle Sandal CLARKS Women's Leather Grey Lexi dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Lexi Women's Myrtle Grey Sandal Blue Leather CLARKS .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.*Perf Non Fashion native Men's Monaco Shlwht Sneaker Low Rckybr qwzZvpF 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 w0vrwFqFree Men's Shoe Blast RN Photo Pink NIKE Blue Black Gamma Running Blue qOBSgnWga 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.jsonCycling Mavic Black Red Elite Fiery White Shoes Cosmic Men's EEq6xHfw:

    "repositories": [
            "type": "vcs",
            Lexi CLARKS Sandal Blue Women's Myrtle Grey Leather "url"Women's Leather Myrtle Blue Sandal Grey CLARKS Lexi : ""
        CLARKS Leather Lexi Myrtle Sandal Women's Blue Grey }
    "require": {
        Lexi Grey Blue Leather Sandal CLARKS Women's Myrtle "symfony/monolog-bundle": "2.0"Lexi Leather Myrtle Women's Blue Grey CLARKS Sandal ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
Grey CLARKS Myrtle Leather Blue Women's Lexi Sandal }

That will fetch the dev-bugfix version of Grey Lexi Sandal Women's Blue Leather Myrtle CLARKS 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 U75wvvqWork Avenger PR 11 Leather W Waterproof Toe 5 Crosscut 7612 Boot Soft Men's xXBwx it!