matrix-org_synapse/scripts-dev/docker_update_debian_change...

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#!/bin/bash -e
# Copyright 2021 The Matrix.org Foundation C.I.C.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This script is meant to be used inside a Docker container to run the `dch` incantations
# needed to release Synapse. This is useful on systems like macOS where such scripts are
# not easily accessible.
#
# Running it (when if the current working directory is the root of the Synapse checkout):
# docker run --rm -v $PWD:/synapse ubuntu:latest /synapse/scripts-dev/docker_update_debian_changelog.sh VERSION
#
# The image can be replaced by any other Debian-based image (as long as the `devscripts`
# package exists in the default repository).
# `VERSION` is the version of Synapse being released without the leading "v" (e.g. 1.42.0).
# Check if a version was provided.
if [ "$#" -ne 1 ]; then
echo "Usage: update_debian_changelog.sh VERSION"
echo "VERSION is the version of Synapse being released in the form 1.42.0 (without the leading \"v\")"
exit 1
fi
# Check that apt-get is available on the system.
if ! which apt-get > /dev/null 2>&1; then
echo "\"apt-get\" isn't available on this system. This script needs to be run in a Docker container using a Debian-based image."
exit 1
fi
# Check if devscripts is available in the default repos for this distro.
# Update the apt package list cache.
# We need to do this before we can search the apt cache or install devscripts.
apt-get update || exit 1
if ! apt-cache search devscripts | grep -E "^devscripts \-" > /dev/null; then
echo "The package \"devscripts\" needs to exist in the default repositories for this distribution."
exit 1
fi
# We set -x here rather than in the shebang so that if we need to exit early because no
# version was provided, the message doesn't get drowned in useless output.
set -x
# Make the root of the Synapse checkout the current working directory.
cd /synapse
# Install devscripts (which provides dch). We need to make the Debian frontend
# noninteractive because installing devscripts otherwise asks for the machine's location.
DEBIAN_FRONTEND=noninteractive apt-get install -y devscripts
# Update the Debian changelog.
ver=${1}
dch -M -v "$(sed -Ee 's/(rc|a|b|c)/~\1/' <<<"$ver")" "New synapse release $ver."
dch -M -r -D stable ""