export-commits-to-manyrepo.sh
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export-commits-to-manyrepo.sh
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	#!/bin/sh

	set -e

	# Parse arguments
	if [ $# -lt 1 ]; then
	echo "Usage: $0 <TARGET REPOSITORY>" 1>&2
	exit 1
	fi
	REPO=$1

	set -x

	# Ensure we've up-to-date information
	git fetch --all

	# Prepare new main branch for $REPO
	git subtree split -P "$REPO" -b "$REPO"

	# Merge new subtree split branch into main
	git fetch $REPO main
	git rebase --strategy-option=ours "$REPO" "$REPO"/main

	git checkout $REPO
	git rebase --strategy-option=ours "$REPO"/main

	# Push new main
	git push "$REPO" "$REPO":main

	# Clean up
	git checkout main
	git branch -D "$REPO"