compact-migrations

#!/bin/sh
# Compact all 8xxx migrations into a single migration as part of the release process.

set -eu

cd "$(dirname $0)/sqlstore/src/main/resources/db/migration"

# Determine the last migration in the working directory
LAST="$(basename "$(ls V[0-5][0-9][0-9][0-9]_*.sql | sort | tail -n 1)")"
echo "Previous migration is ${LAST}."
LAST_ID="$(echo "${LAST}" | cut -c 2-5 | sed -e 's/^0*//')"

# Determine if we are on the mainline branch or a site-specific branch.
BRANCH="$(git for-each-ref --format='%(upstream:short)' "$(git symbolic-ref -q HEAD)")"
if [ "${BRANCH#*/}" = "develop" ] && git remote show -n "${BRANCH%/*}" | grep "TGAC/miso-lims.git" > /dev/null
then
	echo "This is mainline"
	TAIL="main"
	ID=$(((${LAST_ID} / 10 + 1) * 10))
	START_BANNER=""
	END_BANNER=""
else
	echo "This is site-specific."
	TAIL="site"
	ID=$((${LAST_ID} + 1))
	if [ $((${ID} % 10)) -eq 0 ]
	then
		echo "Too many site-specific releases since last mainline release."
		exit 1
	fi
	START_BANNER="--StartNoTest"
	END_BANNER="--EndNoTest"
fi

NEXT="V$(printf "%04d" ${ID})__auto_${TAIL}.sql"
echo "Next migration will be ${NEXT}."

# Concatenate all the 8xxx files and remove them from git
rm -f "${NEXT}"
for FILE in $(find . -name "V8[0-9][0-9][0-9]_*.sql" | sort)
do
	NAME=$(basename "${FILE}" .sql)
	echo -- ${NAME#V*__} >> "${NEXT}"
	echo ${START_BANNER} >> "${NEXT}"
	# This sed command forces a newline at the end of the file
	sed -e '$a\' "${FILE}" >> "${NEXT}"
	echo ${END_BANNER} >> "${NEXT}"
	echo >> "${NEXT}"
	git rm "${FILE}"
done
if [ -f "${NEXT}" ]
then
	git add "${NEXT}"
fi