[MINT-3175] Models to Operation Matrix (MTO) Feature #3540

	# This GitHub action checks for duplicate migration prefixes in the ./migrations folder,
	# comparing the head branch with the base branch.
	#
	# This job also checks to ensure that migrations are only ever added to the ./migrations folder, and not removed or modified.
	#
	# By default, on: pull request targets the merge commit, which is the commit that would be merged into the base branch,
	# meaning it will include commits from the head branch and the base branch (allowing us to check for version conflicts)

	name: Check Migrations

	on:
	pull_request:
	branches:
	- main # Only run this when targeting main, otherwise we should be free to edit / have bad migrations.

	jobs:
	check_migrations:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout all
	uses: actions/checkout@v4
	with:
	fetch-depth: 0 # Need to check out all branches

	- name: Check migrations versions for conflicts
	run: ./scripts/check_migration_versions.sh

	- name: Allow only added migrations
	env:
	BASE_REF: ${{ github.base_ref }}
	HEAD_REF: ${{ github.head_ref }}
	run: ./scripts/check_migration_diff.sh

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