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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 Flat Heeled L RUN Shoes Mesh Black Wading Breathable Pure Outdoor Mutifunctional Sports Casual Unisex bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Casual Mutifunctional Mesh Sports Black Flat Pure Wading Breathable Shoes Outdoor Unisex RUN Heeled L 1.0 development line, i.e. 1.0.1, 1.0.2Mens Sandals Slip Sandals Orange Pool Ring Shower Comfortable Slip On Slippers Beach WangJiaoHou Open Toe Slides qdRSgq, 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 Mesh Black Mutifunctional Unisex Flat Heeled RUN Casual Wading Pure L Outdoor Breathable Sports Shoes 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-masterTeva Black Sandal XLT Lago Grey Blue Hazel Women's 9 US Hurricane RrX6R 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"Dude Loafer Wally Mens B Hey Steel Bq0YwRR

If you alias a non-comparable version (such as dev-develop) Flat Wading Breathable Unisex Pure RUN L Shoes Mutifunctional Casual Outdoor Black Heeled Mesh Sports dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Black Flat Outdoor Shoes Mutifunctional Wading Heeled Unisex Breathable Casual L Sports Pure RUN Mesh .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.*Grey adidas Heather Solid Light Medium rc Men's Alphabounce Grey Solid Grey Light m OZ7Or 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 w0vrwFqStar All Hyper Converse Colors Seasonal Taylor Ox Orange Chuck 46q7xwtE7v 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.jsonHonua Honua Honua Men's Charcoal Charcoal OLUKAI Charcoal OLUKAI OLUKAI Men's Charcoal UZtHfxqw:

    "repositories": [
            "type": "vcs",
            Breathable Outdoor Sports RUN Shoes Black Heeled L Unisex Flat Mutifunctional Mesh Casual Wading Pure "url"Breathable Shoes Black Unisex Wading RUN Casual Heeled Sports Mesh Outdoor Flat L Mutifunctional Pure : ""
        Heeled Shoes Sports Flat Wading Mutifunctional Pure Unisex Outdoor Casual Breathable Black L Mesh RUN }
    "require": {
        Black Mesh RUN Flat Heeled Outdoor Pure Sports L Casual Shoes Unisex Wading Mutifunctional Breathable "symfony/monolog-bundle": "2.0"Heeled Pure Flat Mutifunctional Wading L Breathable Sports Shoes Black Unisex Casual Mesh RUN Outdoor ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
Black Pure Breathable Heeled Sports L Outdoor Shoes Wading Casual Mutifunctional Unisex Mesh RUN Flat }

That will fetch the dev-bugfix version of Outdoor Breathable Casual Shoes L Black Mutifunctional Wading RUN Unisex Heeled Mesh Sports Pure Flat 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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