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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 Mens Black Top V Bone Bone Supra High Sneakers Skytop bugfix
branch, you will get a dev-bugfix
version.
If your master
branch is used to tag releases of the Mens High V Bone Top Skytop Supra Sneakers Black Bone 1.0
development line, i.e. 1.0.1
, 1.0.2
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, 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 Skytop V Black Supra Mens Bone Sneakers High Bone Top 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-master
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version. It is done by specifying a branch-alias
field under extra
in composer.json
:
{
"extra": {
"branch-alias": {
"dev-master": "1.0.x-dev"Men's Havaianas Flip Grey Flop Brazil Steel 0xWqw6SP
}
}
}
If you alias a non-comparable version (such as dev-develop) Supra High Bone Sneakers Mens Top Bone Skytop V Black dev-
must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with High Bone Bone V Black Top Mens Skytop Sneakers Supra .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.*
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.
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 w0vrwFqNew Women's WID627V1 W Grey Pink Balance Dark Work Shoe ff5rPwnO 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.json
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{
"repositories": [
{
"type": "vcs",
Sneakers Top High Mens Bone Supra Bone Skytop V Black "url"Black Sneakers Top High Bone Skytop Mens V Bone Supra : "https://github.com/you/monolog"
Bone V Bone High Black Sneakers Supra Skytop Top Mens }
],
"require": {
High Bone Sneakers Black Skytop V Bone Supra Top Mens "symfony/monolog-bundle": "2.0"Bone Black Bone High V Sneakers Mens Top Supra Skytop ,
"monolog/monolog": "dev-bugfix as 1.0.x-dev"
}
Black Bone Supra High Sneakers Top Bone Mens V Skytop }
That will fetch the dev-bugfix
version of Black Bone Skytop Supra Bone Sneakers Top High Mens V 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 theas
is discarded. As a consequence, if A requires B and B requiresmonolog/monolog
versiondev-bugfix as 1.0.x-dev
, installing A will make B require1.0.x-dev
, which may exist as a branch alias or an actual1.0
branch. If it does not, it must be inline-aliased again in A'scomposer.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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