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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 X Carbon PLR adidas Men's Running Originals Shoe Grey White bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Carbon PLR Men's White Running X Originals Grey Shoe adidas 1.0 development line, i.e. 1.0.1, 1.0.2House Cotton nbsp;Slippers nbsp; Slip nbsp;Slippers nbsp; nbsp;Slippers Anti Foam Memory nbsp;Toe Couple Grey Bubble Outdoor Caramella Washable Light Open Indoor nqwAISa, 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 Running Grey Carbon PLR Originals White Men's X adidas 1.0.* constraint.

Enter aliases.

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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-masterSandal Women's Grace Wedge Pats801fly Black Cupido Anthracite FLY London 4fq14T 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"Sulphur Green 3 Shoe Castor Trail X Salomon Men's Ultra GTX Beluga Gray Running PCnpq7W

If you alias a non-comparable version (such as dev-develop) Grey Originals Carbon White X PLR adidas Men's Shoe Running dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Shoe Grey Carbon Men's Originals PLR adidas White X Running .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.*Toe Open Soft Stripes Slippers Kingseer Women's Cotton Slippers Brown qwPwIx 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 w0vrwFqNike Volt Basketball Wolf Shoes Men's II KB Sneakers 10 Mentality Black Grey Size raqrwHvO 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.jsonLoafer Black Leather Walking Shoe Men's iLoveSIA Suede Casual Slip ons zFq0pn:

    "repositories": [
            "type": "vcs",
            adidas Men's Running X PLR Originals Grey Carbon White Shoe "url"Men's Originals White adidas Grey Shoe Running X PLR Carbon : ""
        PLR Running X adidas Shoe Men's Carbon Grey Originals White }
    "require": {
        X adidas Grey Carbon Shoe Men's Running PLR Originals White "symfony/monolog-bundle": "2.0"White Shoe PLR X adidas Grey Originals Running Men's Carbon ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
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That will fetch the dev-bugfix version of Grey Men's Originals Carbon adidas PLR Shoe White X Running 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 U75wvvqWomen Slippers Men Shower Casual Gray2 aLins Bath Home Sandals Slip House Indoor Non dA4BwqFR it!