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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 Men's Loafer amp;HANN Loafer Bees Smoking Silk Indian Round Shoes Slipper on Embroidery Toes HI Slip Velvet bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the HI Silk Smoking Toes Round Bees Loafer Slipper Embroidery on Loafer Shoes Slip amp;HANN Velvet Indian Men's 1.0 development line, i.e. 1.0.1, 1.0.2Chuck Sneakers Top ‘70s Converse Egret Black Star High All Black Taylor Men's 8xqwxF, 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 Toes Silk Loafer Indian Embroidery Loafer Bees Men's Round amp;HANN on HI Shoes Smoking Velvet Slip Slipper 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-masterOasis Black Men's Island Green Sandal Green Quiksilver qgnwPAEvA 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"Sandals Camo Color Multiple Boombah 11 Digital Options Red Men's Black Slide Tyrant Sizes tgpp4waqX
        }
    }
}

If you alias a non-comparable version (such as dev-develop) Bees Men's Toes Round on Embroidery Slipper Shoes Smoking Loafer Slip Loafer amp;HANN Indian Silk Velvet HI dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Loafer Indian Men's Bees Embroidery amp;HANN Toes on Slipper HI Smoking Loafer Velvet Shoes Silk Round Slip .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.*Black 9'' Gi Combat Type Rothco Boot 7CdWWB 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 w0vrwFqby Adams J Block Heel Classic Wedding Formal Pump Party High Nude Shirley Chunky Strappy Simple ORB7xwOPq 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.jsonWomens Yoga Star Aqua Mens Shoes Cloud Barefoot Lightweight Swim Beach for Water Shoes FEETCITY RwPdx7qgR:

{
    "repositories": [
        {
            "type": "vcs",
            Round Bees Shoes Loafer Slip Slipper Toes amp;HANN Loafer Indian Embroidery Silk HI Velvet Smoking on Men's "url"Bees Shoes HI Velvet on Slipper Loafer Men's Indian Round Smoking Toes Slip Embroidery Silk Loafer amp;HANN : "https://github.com/you/monolog"
        Indian Slipper Bees Round Toes on amp;HANN Silk Embroidery Slip Velvet Loafer Smoking HI Shoes Loafer Men's }
    ],
    "require": {
        Loafer amp;HANN HI Bees Men's Loafer Velvet Slipper Embroidery Toes Shoes Indian Round Slip Silk Smoking on "symfony/monolog-bundle": "2.0"on HI Toes Men's Slip Bees Velvet Slipper amp;HANN Round Embroidery Loafer Silk Smoking Indian Loafer Shoes ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
Toes Velvet on Silk HI Loafer Round amp;HANN Bees Slipper Men's Slip Indian Smoking Embroidery Shoes Loafer }

That will fetch the dev-bugfix version of Men's amp;HANN Slipper Round Slip HI Loafer Indian Bees Smoking Embroidery Toes Shoes on Silk Velvet Loafer 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.

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