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#!/bin/bash
# release.sh: configurable signed-artefact release script
# Copyright (C) 2016-2020 SUSE LLC
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
set -Eeuo pipefail
source "$(dirname "$BASH_SOURCE")/readlinkf.sh"
## --->
# Project-specific options and functions. In *theory* you shouldn't need to
# touch anything else in this script in order to use this elsewhere.
project="umoci"
root="$(readlinkf_posix "$(dirname "${BASH_SOURCE}")/..")"
# These functions allow you to configure how the defaults are computed.
function get_arch() { go env GOARCH || uname -m; }
function get_version() { cat "$root/VERSION" ; }
# Any pre-configuration steps should be done here -- for instance ./configure.
function setup_project() { true ; }
# This function takes an output path as an argument, where the built
# (preferably static) binary should be placed.
function build_project() {
tmprootfs="$(mktemp -dt "$project-build.XXXXXX")"
make -C "$root" BUILD_DIR="$tmprootfs" COMMIT_NO= "$project.static"
mv "$tmprootfs/$project.static" "$1"
rm -rf "$tmprootfs"
}
# End of the easy-to-configure portion.
## <---
# Print usage information.
function usage() {
echo "usage: release.sh [-h] [-v <version>] [-c <commit>] [-o <output-dir>]" >&2
echo " [-H <hashcmd>] [-S <gpg-key>]" >&2
}
# Log something to stderr.
function log() {
echo "[*]" "$@" >&2
}
# Log something to stderr and then exit with 0.
function quit() {
log "$@"
exit 0
}
# Conduct a sanity-check to make sure that GPG provided with the given
# arguments can sign something. Inability to sign things is not a fatal error.
function gpg_cansign() {
gpg "$@" --clear-sign </dev/null >/dev/null
}
# When creating releases we need to build (ideally static) binaries, an archive
# of the current commit, and generate detached signatures for both.
keyid=""
version=""
arch=""
commit="HEAD"
hashcmd="sha256sum"
while getopts ":h:v:c:o:S:H:" opt; do
case "$opt" in
S)
keyid="$OPTARG"
;;
c)
commit="$OPTARG"
;;
o)
outputdir="$OPTARG"
;;
v)
version="$OPTARG"
;;
H)
hashcmd="$OPTARG"
;;
h)
usage ; exit 0
;;
\:)
echo "Missing argument: -$OPTARG" >&2
usage ; exit 1
;;
\?)
echo "Invalid option: -$OPTARG" >&2
usage ; exit 1
;;
esac
done
# Run project setup first...
( set -x ; setup_project )
# Generate the defaults for version and so on *after* argument parsing and
# setup_project, to avoid calling get_version() needlessly.
version="${version:-$(get_version)}"
arch="${arch:-$(get_arch)}"
outputdir="${outputdir:-release/$version}"
log "[[ $project ]]"
log "version: $version"
log "commit: $commit"
log "output_dir: $outputdir"
log "key: ${keyid:-(default)}"
log "hash_cmd: $hashcmd"
# Make explicit what we're doing.
set -x
# Make the release directory.
rm -rf "$outputdir" && mkdir -p "$outputdir"
# Build project.
build_project "$outputdir/$project.$arch"
# Generate new archive.
git archive --format=tar --prefix="$project-$version/" "$commit" | xz > "$outputdir/$project.tar.xz"
# Generate sha256 checksums for both.
( cd "$outputdir" ; "$hashcmd" "$project".{"$arch",tar.xz} > "$project.$hashcmd" ; )
# Set up the gpgflags.
gpgflags=()
[[ -z "$keyid" ]] || gpgflags+=("--default-key=$keyid")
gpg_cansign "${gpgflags[@]}" || quit "Could not find suitable GPG key, skipping signing step."
# Sign everything.
gpg "${gpgflags[@]}" --detach-sign --armor "$outputdir/$project.$arch"
gpg "${gpgflags[@]}" --detach-sign --armor "$outputdir/$project.tar.xz"
gpg "${gpgflags[@]}" --clear-sign --armor \
--output "$outputdir/$project.$hashcmd"{.tmp,} && \
mv "$outputdir/$project.$hashcmd"{.tmp,}
|
