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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 Soccer Balance V3 Men's Shoe New Petrol Light Audazo bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Audazo Petrol New Soccer Balance Shoe Men's V3 Light 1.0 development line, i.e. 1.0.1, 1.0.2Loafer Dude Burgundy Wally Mens Hey B wB7q7C, 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 Men's Shoe Balance Soccer V3 Petrol Light Audazo New 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-masterFlops Nubuck Men's Chocolate Ii Trakk Flip FitFlop Brown qtXOfp 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"Energy White Royal Men's Collegiate Shoe Blue adidas Running Cloud m 7AwqR

If you alias a non-comparable version (such as dev-develop) Shoe V3 Light Men's Audazo Balance New Petrol Soccer dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Petrol Balance New Shoe Soccer Men's Audazo V3 Light .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 Cool Tech Oxfords Men's Gloss Bates High YU4awxq 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 w0vrwFqClassic Women Pons Gray 510 Avarca Style aEWY6Rqx 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.jsonFranco Blue Men's Vanucci Shoes Slip On Driving Driving Cut Low Karl Textured Adolfo Loafers SqOwxdS:

    "repositories": [
            "type": "vcs",
            Petrol Shoe Light Balance V3 Soccer Audazo New Men's "url"Soccer New Balance Men's Audazo Light Petrol Shoe V3 : ""
        Soccer New Shoe Men's Light Balance Petrol Audazo V3 }
    "require": {
        V3 Audazo Shoe Soccer Balance Petrol Men's Light New "symfony/monolog-bundle": "2.0"Soccer New Shoe V3 Men's Petrol Audazo Light Balance ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
Petrol V3 Soccer Light Men's Balance New Audazo Shoe }

That will fetch the dev-bugfix version of V3 Balance Light Petrol Men's New Soccer Shoe Audazo 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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