wkse / composer-merge-plugin
Composer plugin to merge multiple composer.json files
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Type:composer-plugin
Requires
- php: >=5.3.2
- composer-plugin-api: ^1.0
Requires (Dev)
- composer/composer: 1.0.*@dev
- jakub-onderka/php-parallel-lint: ~0.8
- phpunit/phpunit: ~4.8|~5.0
- squizlabs/php_codesniffer: ~2.1.0
This package is not auto-updated.
Last update: 2024-11-01 18:04:43 UTC
README
Composer Merge Plugin
Merge multiple composer.json files at Composer runtime.
Composer Merge Plugin is intended to allow easier dependency management for
applications which ship a composer.json file and expect some deployments to
install additional Composer managed libraries. It does this by allowing the
application's top level composer.json
file to provide a list of optional
additional configuration files. When Composer is run it will parse these files
and merge their configuration settings into the base configuration. This
combined configuration will then be used when downloading additional libraries
and generating the autoloader.
Composer Merge Plugin was created to help with installation of MediaWiki which has core library requirements as well as optional libraries and extensions which may be managed via Composer.
Installation
$ composer require wikimedia/composer-merge-plugin
Usage
{
"require": {
"wikimedia/composer-merge-plugin": "dev-master"
},
"extra": {
"merge-plugin": {
"include": [
"composer.local.json",
"extensions/*/composer.json"
],
"require": [
"submodule/composer.json"
],
"recurse": true,
"replace": false,
"merge-dev": true,
"merge-extra": false
}
}
}
Plugin configuration
The plugin reads its configuration from the merge-plugin
section of your
composer.json's extra
section. An include
setting is required to tell
Composer Merge Plugin which file(s) to merge.
include
The include
setting can specify either a single value or an array of values.
Each value is treated as a PHP glob()
pattern identifying additional
composer.json style configuration files to merge into the root package
configuration for the current Composer execution.
The following sections of the found configuration files will be merged into the Composer root package configuration as though they were directly included in the top-level composer.json file:
- autoload
- autoload-dev (optional, see merge-dev below)
- conflict
- provide
- replace
- repositories
- require
- require-dev (optional, see merge-dev below)
- suggest
- extra (optional, see merge-extra below)
require
The require
setting is identical to [include](#include)
except when
a pattern fails to match at least one file then it will cause an error.
recurse
By default the merge plugin is recursive; if an included file has
a merge-plugin
section it will also be processed. This functionality can be
disabled by adding a "recurse": false
setting.
replace
By default, Composer's conflict resolution engine is used to determine which
version of a package should be installed when multiple files specify the same
package. A "replace": true
setting can be provided to change to a "last
version specified wins" conflict resolution strategy. In this mode, duplicate
package declarations found in merged files will overwrite the declarations
made by earlier files. Files are loaded in the order specified by the
include
setting with globbed files being processed in alphabetical order.
merge-dev
By default, autoload-dev
and require-dev
sections of included files are
merged. A "merge-dev": false
setting will disable this behavior.
merge-extra
A "merge-extra": true
setting enables the merging the contents of the
extra
section of included files as well. The normal merge mode for the extra
section is to accept the first version of any key found (e.g. a key in the
master config wins over the version found in any imported config). If
replace
mode is active (see above) then this behavior changes
and the last key found will win (e.g. the key in the master config is replaced
by the key in the imported config). The usefulness of merging the extra
section will vary depending on the Composer plugins being used and the order
in which they are processed by Composer.
Note that merge-plugin
sections are excluded from the merge process, but are
always processed by the plugin unless recursion is disabled.
Running tests
$ composer install
$ composer test
Contributing
Bug, feature requests and other issues should be reported to the GitHub project. We accept code and documentation contributions via Pull Requests on GitHub as well.
- PSR-2 Coding Standard is used by the project. The included test configuration uses PHP Code Sniffer to validate the conventions.
- Tests are encouraged. Our test coverage isn't perfect but we'd like it to get better rather than worse, so please try to include tests with your changes.
- Keep the documentation up to date. Make sure
README.md
and other relevant documentation is kept up to date with your changes. - One pull request per feature. Try to keep your changes focused on solving a single problem. This will make it easier for us to review the change and easier for you to make sure you have updated the necessary tests and documentation.
License
Composer Merge plugin is licensed under the MIT license. See the LICENSE
file for more details.