A bash script to copy commits from a fork to a brach to run CI when fork builds are disabled.

test-fork-pr.sh

#!/bin/bash
set -euo pipefail
IFS=$'\n\t'
###
#
# Requires: git, gh (https://cli.github.com/)
# Usage: bash test-fork-pr.sh "${REPO}" "${PR_ID}"
# example: bash test-fork-pr.sh pantheon-systems/wp-redis 100
#
###
REPO=${1:-}
PULL_REQUEST_ID=${2:-}

if [[ -z "${REPO}" || -z "${PULL_REQUEST_ID}" ]]; then
	echo "usage: $0 PULL_REQUEST_ID"
	exit 1
fi

echo "Working on PR $PULL_REQUEST_ID of ${REPO}"

WORKDIR=/tmp/work
PROJECT="${REPO#*/}"


echo ${WORKDIR}
echo "${WORKDIR}/${PROJECT}"

# Clone the project if necessary
if [ ! -d "${WORKDIR}/${PROJECT}" ] ; then
	mkdir -p "${WORKDIR}"
	(
		cd "${WORKDIR}" && gh repo clone "${REPO}"
	)
fi

cd "${WORKDIR}/${PROJECT}"
pwd

TEST_BRANCH_NAME="TEST-FORK-PR-$PULL_REQUEST_ID"

gh pr checkout "${PULL_REQUEST_ID}"

# TODO: This checkout fails if the branch already exists.
git checkout -b "$TEST_BRANCH_NAME"

git push origin "${TEST_BRANCH_NAME}"

open "https://github.com/"${REPO}"/tree/${TEST_BRANCH_NAME}"