Loads HM Custom Meta Boxes as a must-use plugin.
The package type is wordpress-muplugin. Example of a composer.json:
{
"name": "wearerequired/something",
"description": "required.com",
"license": "GPL-2.0+",
"authors": [
{
"name": "required gmbh",
"email": "info@required.ch"
}
],
"require": {
"php": ">=5.3",
"koodimonni/composer-dropin-installer": "dev-master",
"johnpbloch/wordpress": "~4.9",
"humanmade/custom-meta-boxes": "dev-develop",
"wearerequired/custom-meta-boxes-mu-loader": "^1.0"
},
"repositories": [
{
"type": "package",
"package": {
"name": "humanmade/custom-meta-boxes",
"type": "wordpress-plugin",
"version": "dev-develop",
"source": {
"type": "git",
"url": "git@github.com:humanmade/Custom-Meta-Boxes.git",
"reference": "develop"
}
}
}
],
"extra": {
"wordpress-install-dir": "wordpress/wp",
"installer-paths": {
"wordpress/content/plugins/{$name}/": [
"type:wordpress-plugin"
],
"vendor/{$vendor}/{$name}/": [
"type:wordpress-muplugin"
],
"wordpress/content/themes/{$name}/": [
"type:wordpress-theme"
]
},
"dropin-paths": {
"wordpress/content/mu-plugins/": [
"type:wordpress-muplugin"
]
}
},
"minimum-stability": "dev",
"prefer-stable": true
}wp-content/mu-plugins is designed to only support plugins in a single file. HM Custom Meta Boxes has clearly more than one file.
It also helps to keep the wp-content directory of your project as clean as possible. It should actually be empty because you're loading everything through composer. 😉