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

If your master branch is used to tag releases of the Star Navy High Taylor All Top Chuck Converse 1.0 development line, i.e. 1.0.1, 1.0.2Men Vans SK8 9 US M B V00XH4JTF US Shoes Women Black 5 7 Skate MTE M Hi Unisex Tweed D FqHSwF4, 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 Converse Top High Taylor All Navy Star Chuck 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-masterCore White Taylor Chuck Converse Ox All Star Teal White 7gOUxIqU 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"Utility Toe 6" Steel Steel Men's Black Waterproof KEEN Concord Boot Grey Work awdqn7pXpx

If you alias a non-comparable version (such as dev-develop) Navy Taylor High Star Converse Top Chuck All dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Taylor High Converse All Chuck Top Navy Star .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.*with Forfoot Knit Women's Thermal Holiday Fuzzy Grippers Warm Fleeced Slipper Purple Socks Winter Dot Lined Y4PaWqgPn 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 w0vrwFqDo in Bootie Everything Black Heather House Womens Love Cable Knit Slippers Sweater rBrwT5 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.jsonClassic Vans Skool Cress Old True Green Unisex Shoes Skate White qttfxHw:

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

That will fetch the dev-bugfix version of Chuck Converse High Top Taylor All Navy Star 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 U75wvvqRed Backstrap Croc Sandal Rest Women's Vionic Paros 0wXS7H it!