flatcar-scripts/ci-automation/packages-tag.sh
Kai Lueke 5e0dc0a85d ci-automation: Move git tagging into own script
When the build system runs the packages jobs for both architectures in
parallel and has to create a new tag, tagging fails due to the race in
the tagging.
Move the git tagging to its own script that is run from a new top-level
job that starts the packages jobs for both architectures.
2022-07-18 19:20:44 +02:00

121 lines
4.8 KiB
Bash

#!/bin/bash
#
# Copyright (c) 2021 The Flatcar Maintainers.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# >>> This file is supposed to be SOURCED from the repository ROOT. <<<
#
# packages_tag() should be called w/ the positional INPUT parameters below.
# build tag automation stub.
# This script will update the versionfile with the OS packages version to build,
# and will add a version tag (see INPUT) to the scripts repo.
#
# PREREQUISITES:
#
# 1. SDK version is recorded in sdk_container/.repo/manifests/version.txt
# 2. SDK container is either
# - available via ghcr.io/flatcar-linux/flatcar-sdk-[ARCH]:[VERSION] (official SDK release)
# OR
# - available via build cache server "/containers/[VERSION]/flatcar-sdk-[ARCH]-[VERSION].tar.gz"
# (dev SDK)
#
# INPUT:
#
# 1. Version of the TARGET OS image to build (string).
# The version pattern '(alpha|beta|stable|lts)-MMMM.m.p' (e.g. 'alpha-3051.0.0')
# denotes a "official" build, i.e. a release build to be published.
# Use any version diverging from the pattern (e.g. 'alpha-3051.0.0-nightly-4302') for development / CI builds.
# A tag of this version will be created in the scripts repo and pushed upstream.
#
#
# OPTIONAL INPUT:
#
# 2. coreos-overlay repository tag to use (commit-ish).
# Optional - use scripts repo sub-modules as-is if not set.
# This version will be checked out / pulled from remote in the coreos-overlay git submodule.
# The submodule config will be updated to point to this version before the TARGET SDK tag is created and pushed.
#
# 3. portage-stable repository tag to use (commit-ish).
# Optional - use scripts repo sub-modules as-is if not set.
# This version will be checked out / pulled from remote in the portage-stable git submodule.
# The submodule config will be updated to point to this version before the TARGET SDK tag is created and pushed.
#
# OUTPUT:
#
# 1. Updated scripts repository
# - version tag w/ submodules
# - sdk_container/.repo/manifests/version.txt denotes new FLATCAR OS version
# 2. "./skip-build" as flag file to signal that the build should stop
function packages_tag() {
# Run a subshell, so the traps, environment changes and global
# variables are not spilled into the caller.
(
set -euo pipefail
_packages_tag_impl "${@}"
)
}
# --
function _packages_tag_impl() {
local version="$1"
local coreos_git="${2:-}"
local portage_git="${3:-}"
source ci-automation/ci_automation_common.sh
source ci-automation/gpg_setup.sh
init_submodules
check_version_string "${version}"
source sdk_container/.repo/manifests/version.txt
local sdk_version="${FLATCAR_SDK_VERSION}"
if [ -n "${coreos_git}" ] ; then
update_submodule "coreos-overlay" "${coreos_git}"
fi
if [ -n "${portage_git}" ] ; then
update_submodule "portage-stable" "${portage_git}"
fi
# Create new tag in scripts repo w/ updated versionfile + submodules.
# Also push the changes to the branch ONLY IF we're doing a nightly
# build of the 'main'/'flatcar-MAJOR' branch AND we're definitely ON the respective branch
# (`scripts` and submodules).
local push_branch="false"
if [[ "${version}" =~ ^(stable|alpha|beta|lts)-[0-9.]+-nightly-[-0-9]+$ ]] \
&& [[ "$(git rev-parse --abbrev-ref HEAD)" =~ ^flatcar-[0-9]+$ ]] \
&& [[ "$(git -C sdk_container/src/third_party/coreos-overlay/ rev-parse --abbrev-ref HEAD)" =~ ^flatcar-[0-9]+$ ]] \
&& [[ "$(git -C sdk_container/src/third_party/portage-stable/ rev-parse --abbrev-ref HEAD)" =~ ^flatcar-[0-9]+$ ]] ; then
push_branch="true"
local existing_tag=""
existing_tag=$(git tag --points-at HEAD) # exit code is always 0, output may be empty
# If the found tag is a release or nightly tag, we stop this build if there are no changes
if [[ "${existing_tag}" =~ ^(stable|alpha|beta|lts)-[0-9.]+(|-nightly-[-0-9]+)$ ]]; then
local ret=0
git diff --exit-code "${existing_tag}" || ret=$?
if [[ ret -eq 0 ]]; then
touch ./skip-build
echo "Creating ./skip-build flag file, indicating that the build must not to continue because no new tag got created as there are no changes since tag ${existing_tag}" >&2
return 0
elif [[ ret -eq 1 ]]; then
echo "Found changes since last tag ${existing_tag}" >&2
else
echo "Error: Unexpected git diff return code (${ret})" >&2
return 1
fi
fi
fi
# Create version file
(
source sdk_lib/sdk_container_common.sh
create_versionfile "$sdk_version" "$version"
)
update_and_push_version "${version}" "${push_branch}"
}
# --