Files
scylladb/scripts/refresh-submodules.sh
Pavel Emelyanov cb4fe65a78 scripts: Allow specifying submodule branch to refresh from
There's a script to automate fetching submodule changes. However, this
script alays fetches remote master branch, which's not always the case.
For example, for branch-5.0/next-5.0 pair the correct scylla-seastar
branch would be the branch-5.0 one, not master.

With this change updating a submodule from a custom branch would be like

   refresh-submodules.sh <submodule>:<branch>

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
Message-Id: <20220322093623.15748-1-xemul@scylladb.com>
2022-03-22 15:18:25 +02:00

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#!/bin/bash
#
# Refresh git submodules by fast-forward merging them to the tip of the
# master branch of their respective repositories and committing the
# update with a default commit message of "git submodule summary".
#
# Copyright (C) 2020-present ScyllaDB
#
# SPDX-License-Identifier: AGPL-3.0-or-later
#
set -euo pipefail
# The following is the default list of submodules to refresh. To only refreh
# some of them, pass the list of modules to refresh as arguments. For example,
# "scripts/refresh-submodules.sh seastar tools/java" only refreshes the
# two submodules seastar and tools/java.
submodules=(
seastar
tools/jmx
tools/java
tools/python3
)
for ent in "${@:-${submodules[@]}}"; do
submodule=${ent%%:*}
[ ${submodule} == ${ent} ] && branch="master" || branch=${ent#*:}
GIT_DIR="$submodule/.git" git pull --ff-only origin ${branch}
SUMMARY=$(git submodule summary $submodule)
if grep '^ *<' <<< "$SUMMARY"; then
echo "Non fast-forward changes detected! Fire three red flares from your flare pistol."
exit 1
fi
if [ ! -z "$SUMMARY" ]; then
git commit --edit -m "Update $submodule submodule" -m "$SUMMARY" $submodule
fi
done