Automerge #4134

	# This workflow executes the automerge python script to automatically merge
	# changes from the `main` branch of upstream LLVM into the `arm-software`
	# branch of the arm/arm-toolchain repository.
	name: Automerge
	on:
	workflow_run:
	workflows: [Sync from Upstream LLVM]
	types:
	- completed
	workflow_dispatch:
	jobs:
	Run-Automerge:
	runs-on: ubuntu-24.04-arm
	if: github.repository == 'arm/arm-toolchain'
	strategy:
	matrix:
	branches:
	- from_branch: main
	to_branch: arm-software
	steps:
	- name: Configure Access Token
	uses: actions/create-github-app-token@v1
	id: generate-token
	with:
	app-id: ${{ secrets.SYNC_APP_ID }}
	private-key: ${{ secrets.SYNC_APP_PRIVATE_KEY }}
	- name: Checkout
	uses: actions/checkout@v4
	with:
	ref: ${{ matrix.branches.to_branch }}
	token: ${{ steps.generate-token.outputs.token }}
	- name: Configure Git Identity
	run: \|
	git config --local user.name "github-actions[bot]"
	git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
	- name: Fetch Branches
	run: \|
	git remote set-branches --add origin ${{ matrix.branches.from_branch }}
	git fetch origin ${{ matrix.branches.from_branch }}:${{ matrix.branches.from_branch }}
	git pull --unshallow --ff-only origin ${{ matrix.branches.to_branch }}
	- name: Run automerge
	run: python3 arm-software/ci/automerge.py --project-name ${{ github.repository }} --from-branch ${{ matrix.branches.from_branch }} --to-branch ${{ matrix.branches.to_branch }} --verbose
	env:
	GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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