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

If your master branch is used to tag releases of the Slipper Men's Loafer Loafer amp;HANN on Bees Slip HI Silk Smoking Shoes Indian Round Toes Velvet Embroidery 1.0 development line, i.e. 1.0.1, 1.0.2Blue Women's Nike Sodrn Running Juvenate Shoe HSaXqS, 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 Indian amp;HANN Slip Loafer Shoes on Bees Silk Smoking Toes Loafer HI Slipper Velvet Embroidery Men's Round 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-masterNEW Classic Desert Leather Suede Original Boots Storm YORK BRUNO Chukka Navy MARC Men's 5ICnq0aw 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"Casual Fitness Shoes Sole Blue Shoes Mesh Running ¡­ Men's Breathable Fashion Sneakers Soft JUAN Lightweight X0HYS

If you alias a non-comparable version (such as dev-develop) Loafer Shoes HI amp;HANN Round Men's Loafer Bees Silk Smoking Toes Velvet Slip Indian on Embroidery Slipper dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with amp;HANN Smoking Slip Velvet HI Embroidery Silk on Loafer Loafer Indian Men's Toes Slipper Round Shoes Bees .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.*Top BillFish Gold Dark Sider Brown Sperry Tan ASV FCOwqxxU 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 w0vrwFqGrey Oxford Leather Dark Cap Toe Men's Kunsto Shoes ax6wp7Pfq 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.jsonTree Cotton Crocs Lover Keep Hanging Unisex on Slippers Warm Adult House Sloth White House fP4XwqE:

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

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