sync

sync #185

	# Fast-forward sync: updates the main branch in krlmlr/duckdb-r from duckdb/duckdb-r.
	# Runs hourly and on manual dispatch.

	on:
	schedule:
	- cron: "0 * * * *"
	workflow_dispatch:

	name: sync

	jobs:
	sync:
	runs-on: ubuntu-24.04
	if: github.repository == 'krlmlr/duckdb-r'

	name: "Fast-forward main from duckdb/duckdb-r"

	permissions:
	contents: write

	steps:
	- uses: actions/checkout@v6
	with:
	ref: main
	token: ${{ secrets.GITHUB_TOKEN }}

	- uses: ./.github/workflows/git-identity

	- name: Fast-forward main from duckdb/duckdb-r
	run: \|
	set -x

	# Shallow clone duckdb/duckdb-r, excluding commits already reachable from our
	# HEAD (assuming it exists there). Fail if HEAD is not found in the upstream history.
	git clone --depth=100 --single-branch https://github.com/duckdb/duckdb-r.git /tmp/upstream

	# Add the cloned upstream as a local remote and fetch its main branch.
	git remote add upstream /tmp/upstream
	git fetch upstream main

	# Get the current HEAD SHA of our main branch.
	HEAD=$(git rev-parse HEAD)

	# Fast-forward our main to upstream/main.
	git merge --ff-only upstream/main

	NEW_HEAD=$(git rev-parse HEAD)
	if [ "${HEAD}" != "${NEW_HEAD}" ]; then
	echo "Pushing fast-forward from ${HEAD} to ${NEW_HEAD}"
	git push
	else
	echo "Already up to date"
	fi
	shell: bash

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