GitHub Actions - Merge-up

Merge-up supported branches in a repository

Usage

.github/workflows/merge-up.yml

permissions: {}

jobs:
  mergeup:
    # ...
    permissions:
      contents: write
      actions: write
    steps:
      - name: Merge-up
        uses: silverstripe/gha-merge-up@v1

This action has no inputs

CMS major version detection

In cases where the major version is indeterminable, this action will fail. This is most likely if the module is not intended as an addon for a website.

To work around this, specify an arbitrary CMS major version by setting the required PHP version in composer.json to ^8.1 or any other minimum PHP version that aligns with a CMS major version.

Preventing merge-ups from specific major versions of a repository

Update MetaData::DO_NOT_MERGE_UP_FROM_MAJOR in the silverstripe/supported-modules repo. For example to prevent merging up from the 3 major version of silverstripe/silverstripe-linkfield:

public const DO_NOT_MERGE_UP_FROM_MAJOR = [
    'silverstripe/silverstripe-linkfield' => '3',
];