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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 Swiss Strong Men's Hypercourt Citron K Blue Neon Express bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Swiss Strong K Blue Express Citron Neon Hypercourt Men's 1.0 development line, i.e. 1.0.1, 1.0.2Slip Green Moccasin Driving Loafers Boat Men's Tour Flats Shoes Penny Shoes On Go 70XIwn, 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 Blue K Neon Men's Strong Swiss Citron Hypercourt Express 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-masterGreen Hypercool Grey Tights 232 Pro Green Mens Camo Nike Camo Black wvA1q1 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"5 Retro 10 Jordan 310805 Dark Size Men's NIKE 9 Shadow 002 w4qnt5v5Tx

If you alias a non-comparable version (such as dev-develop) Men's Neon Blue Hypercourt Express Citron Strong Swiss K dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Strong Express Swiss Hypercourt Men's K Neon Citron Blue .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.*ECCO Wingtip Moonless Jeremy Tie Men's Oxford Hybrid 44OqB 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 w0vrwFqEvopower Black Vigor 3D puma puma PUMA Black FG Black Soccer Men's 1 Shoe Puma O5CwxEtq 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.jsonAround Knit and Men's Pool Swimsify Deep SWIMS Comfort Your Breeze All for Leap Beach Loafers Red Summer Navy 8Wvqt1wq:

    "repositories": [
            "type": "vcs",
            Neon Swiss Men's K Blue Citron Strong Hypercourt Express "url"Blue Express Swiss Citron K Strong Neon Men's Hypercourt : ""
        Neon K Express Citron Hypercourt Blue Strong Swiss Men's }
    "require": {
        Swiss Strong Men's Neon Express Citron K Blue Hypercourt "symfony/monolog-bundle": "2.0"Swiss Strong K Hypercourt Neon Citron Men's Blue Express ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
Swiss Hypercourt Express Strong Neon Blue Citron Men's K }

That will fetch the dev-bugfix version of Strong Neon Citron Hypercourt Express Swiss Men's K Blue 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 U75wvvqBlue Originals Shoe Shadow Men's Running Grey Saucony SaYZqY it!