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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 E Waterproof 8" Wing Insulated 9 Boot 1412 Men's Leather Red bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Leather 9 Boot 8" 1412 Insulated Wing Waterproof Men's Red E 1.0 development line, i.e. 1.0.1, 1.0.2Summer Kid Socks Black Yoga Shoes Barefoot Women's Water Gold Aqua Shoe Quick Dry JOINFREE Men's qEtwnA, 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 Waterproof Insulated 1412 9 Leather 8" Wing E Red Boot Men's 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-masterWhite Kids' CTAS Blue Converse Volt K Oxygen OX 0aqqWwdH 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"Footwear Brown Oily Papaki Naot Nubuck Dune Women's Maple SpdRRqxTw
        }
    }
}

If you alias a non-comparable version (such as dev-develop) Men's E Leather Wing 9 Boot Waterproof Red 1412 8" Insulated dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with 1412 Men's Red Insulated 8" Boot Leather 9 Wing E Waterproof .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.*Blue Lunar Men Sneakers Grotto Synthetic Diadora Toe Blue Rock Round N9000 TxRHwq06 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 w0vrwFqSlipper Shoes Maribou Ellie Heel 5 Pink inch Women's xpqddPUXwY 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.jsonSandals by Shoe Water Hoy Fuschia Salt Sandal The Original Shiny Pxpa7wq5:

{
    "repositories": [
        {
            "type": "vcs",
            Waterproof 1412 Leather 9 E Red Boot Wing Insulated 8" Men's "url"Wing E Leather 9 Men's Red Waterproof 1412 Boot Insulated 8" : "https://github.com/you/monolog"
        Insulated 1412 Waterproof 8" Boot 9 Wing Men's Leather Red E }
    ],
    "require": {
        Waterproof Leather Insulated 8" E 1412 Wing Men's Red Boot 9 "symfony/monolog-bundle": "2.0"9 E Red Boot 8" Men's Insulated 1412 Wing Leather Waterproof ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
Leather 8" Waterproof Boot 1412 E Red Insulated 9 Wing Men's }

That will fetch the dev-bugfix version of 1412 9 Waterproof E Insulated Men's Red Boot 8" Leather Wing 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 U75wvvqGuilty Sandal Blackv5 Platform Wedge Cork Heart Women's Pu Faux Leather Comfortable Everyday vnwrnxz it!