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	- Tighten the patterns used for nightly tags detection.
- Compare hashes instead of names to figure out if we are on top of a
  branch (fixes the issue of no nightly tags reachable from the
  release branches). Jenkins is doing `git fetch origin "${branch}";
  git checkout FETCH_HEAD` and this was confusing the `git rev-parse
  --abbrev-ref HEAD` code (it returned `HEAD` instead of `${branch}`).
- Account for possible multiple tags in a single commit.
- Made the tagging fail in dubious situations.
- Reindent the code, modernize a bit.
		
	
			
		
			
				
	
	
		
			204 lines
		
	
	
		
			8.8 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
			
		
		
	
	
			204 lines
		
	
	
		
			8.8 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
| #!/bin/bash
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| #
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| # Copyright (c) 2021 The Flatcar Maintainers.
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| # Use of this source code is governed by a BSD-style license that can be
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| # found in the LICENSE file.
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| 
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| # >>> This file is supposed to be SOURCED from the repository ROOT. <<<
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| #
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| # sdk_bootstrap() should be called w/ the positional INPUT parameters below.
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| 
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| # Bootstrap SDK build automation stub.
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| #  This script will use a seed SDK container + tarball to bootstrap a 
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| #   new SDK tarball.
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| #
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| # INPUT:
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| #
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| #   1. Version of the SEED SDK to use (string).
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| #       The seed SDK tarball must be available on https://mirror.release.flatcar-linux.net/sdk/ ...
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| #       The seed SDK container must be available from https://github.com/orgs/flatcar/packages
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| #          (via ghcr.io/flatcar/flatcar-sdk-all:[VERSION]).
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| #
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| #   2. Version of the TARGET SDK to build (string).
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| #       The version pattern 'MMMM.m.p' (e.g. '3051.0.0') denotes a "official" build, i.e. a release build to be published.
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| #       Use any version diverging from the pattern (e.g. '3051.0.0-nightly-4302') for development / CI builds.
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| #       A free-standing tagged commit will be created in the scripts repo and pushed upstream.
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| #
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| # OPTIONAL INPUT:
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| #
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| #   3. ARCH. Environment variable. Target architecture for the SDK to run on.
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| #        Either "amd64" or "arm64"; defaults to "amd64" if not set.
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| #
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| #   4. SIGNER. Environment variable. Name of the owner of the artifact signing key.
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| #        Defaults to nothing if not set - in such case, artifacts will not be signed.
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| #        If provided, SIGNING_KEY environment variable should also be provided, otherwise this environment variable will be ignored.
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| #
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| #   5. SIGNING_KEY. Environment variable. The artifact signing key.
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| #        Defaults to nothing if not set - in such case, artifacts will not be signed.
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| #        If provided, SIGNER environment variable should also be provided, otherwise this environment variable will be ignored.
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| #
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| #   6. A file ../scripts.patch to apply with "git am -3" for the scripts repo.
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| #
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| #   7. AVOID_NIGHTLY_BUILD_SHORTCUTS. Environment variable. Tells the script to build the SDK even if nothing has changed since last nightly build.
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| #        See the description in ci-config.env.
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| #
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| # OUTPUT:
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| #
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| #   1. SDK tarball (gentoo catalyst output) of the new SDK, pushed to buildcache.
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| #   2. Updated scripts repository
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| #        - version tag
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| #        - sdk_container/.repo/manifests/version.txt denotes new SDK version
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| #   3. "./ci-cleanup.sh" with commands to clean up temporary build resources,
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| #        to be run after this step finishes / when this step is aborted.
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| #   4. If signer key was passed, signatures of artifacts from point 1, pushed along to buildcache.
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| #   5. DIGESTS of the artifacts from point 1, pushed to buildcache. If signer key was passed, armored ASCII files of the generated DIGESTS files too, pushed to buildcache.
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| 
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| function sdk_bootstrap() {
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|     # Run a subshell, so the traps, environment changes and global
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|     # variables are not spilled into the caller.
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|     (
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|         set -euo pipefail
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| 
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|         _sdk_bootstrap_impl "${@}"
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|     )
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| }
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| # --
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| 
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| function _sdk_bootstrap_impl() {
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|     local seed_version=${1}
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|     local version=${2}
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|     : ${ARCH:="amd64"}
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| 
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|     source ci-automation/ci_automation_common.sh
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|     source ci-automation/gpg_setup.sh
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| 
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|     check_version_string "${version}"
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| 
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|     if [[ -n ${CIA_DEBUGTESTRUN:-} ]]; then
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|         set -x
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|     fi
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|     # Create new tag in scripts repo w/ updated versionfile.
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|     # Also push the changes to the branch ONLY IF we're doing a nightly
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|     #   build of the 'main' branch AND we're definitely ON the main branch.
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|     #   This includes intermediate SDKs when doing 2-phase nightly builds.
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|     local target_branch=''
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|     # These variables are here to make it easier to test nightly
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|     # builds without messing with actual release branches.
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|     local main_branch=${CIA_DEBUGMAINBRANCH:-main}
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|     local nightly=${CIA_DEBUGNIGHTLY:-nightly}
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|     # Matches the usual nightly tag name, optionally with an
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|     # intermediate suffix of the build ID too
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|     # (main-1234.2.3-nightly-yyyymmdd-hhmm-INTERMEDIATE).
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|     local nightly_pattern_1='^main-[0-9]+(\.[0-9]+){2}-'"${nightly}"'-[0-9]{8}-[0-9]{4}(-INTERMEDIATE)?$'
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|     local main_branch_hash=''
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|     if [[ ${version} =~ ${nightly_pattern_1} ]]; then
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|         main_branch_hash=$(git rev-parse "origin/${main_branch}")
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|     fi
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|     local -a existing_tags=()
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|     if [[ -n ${main_branch_hash} ]]; then
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|         if [[ $(git rev-parse HEAD) != "${main_branch_hash}" ]] ; then
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|             echo "We are doing a nightly build but we are not on top of the ${main_branch} branch. This is wrong and would result in the nightly tag not being a part of the branch." >&2
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|             exit 1
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|         fi
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|         target_branch=${main_branch}
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|         # Check for the existing tag only when we allow
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|         # shortcutting the builds. That way we can skip the checks
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|         # for build shortcutting.
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|         if bool_is_true "${AVOID_NIGHTLY_BUILD_SHORTCUTS}"; then
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|             echo "Continuing the build because AVOID_NIGHTLY_BUILD_SHORTCUTS is bool true (${AVOID_NIGHTLY_BUILD_SHORTCUTS})" >&2
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|         else
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|             git fetch --all --tags --force
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|             # exit code is always 0, output may be empty
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|             mapfile -t existing_tags < <(git tag --points-at HEAD)
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|         fi
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|     fi
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|     local nightly_pattern_2='^main-[0-9]+(\.[0-9]+){2}-'"${nightly}"'-[0-9]{8}-[0-9]{4}$'
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|     local tag nightly_tag=''
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|     for tag in "${existing_tags[@]}"; do
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|         if [[ ${tag} =~ ${nightly_pattern_2} ]]; then
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|             nightly_tag=${tag}
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|             break
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|         fi
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|     done
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|     # If the found tag is a nightly tag, we stop this build if there
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|     # are no changes and the relevant images can be found in the
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|     # bincache.
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|     if [[ -n ${nightly_tag} ]]; then
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|         local -i ret=0
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|         git diff --exit-code --quiet "${nightly_tag}" || ret=$?
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|         if [[ ret -eq 0 ]]; then
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|             local -a versions=(
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|                 $(
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|                     source sdk_lib/sdk_container_common.sh
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|                     source "${sdk_container_common_versionfile}"
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|                     echo "${FLATCAR_SDK_VERSION}"
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|                     echo "${FLATCAR_VERSION}"
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|                 )
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|             )
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|             local flatcar_sdk_version=${versions[0]}
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|             local flatcar_version=${versions[1]}
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|             local sdk_docker_vernum=""
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|             sdk_docker_vernum=$(vernum_to_docker_image_version "${flatcar_sdk_version}")
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|             if check_bincache_images_existence \
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|                    "https://${BUILDCACHE_SERVER}/containers/${sdk_docker_vernum}/flatcar-sdk-all-${sdk_docker_vernum}.tar.zst" \
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|                    "https://${BUILDCACHE_SERVER}/images/amd64/${flatcar_version}/flatcar_production_image.bin.bz2" \
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|                    "https://${BUILDCACHE_SERVER}/images/arm64/${flatcar_version}/flatcar_production_image.bin.bz2"; then
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|                 echo "Stopping build because there are no changes since tag ${nightly_tag}, the SDK container tar ball and the Flatcar images exist" >&2
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|                 return 0
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|             fi
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|             echo "No changes but continuing build because SDK container tar ball and/or the Flatcar images do not exist" >&2
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|         elif [[ ret -eq 1 ]]; then
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|             echo "HEAD is tagged with a nightly tag and yet there a differences? This is fishy and needs to be investigated. Maybe you forgot to commit your changes?" >&2
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|             exit 1
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|         else
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|             echo "Error: Unexpected git diff return code (${ret})" >&2
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|             return 1
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|         fi
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|     fi
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|     if [[ -n ${CIA_DEBUGTESTRUN:-} ]]; then
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|         set +x
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|     fi
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| 
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|     local vernum=${version#*-} # remove alpha-,beta-,stable-,lts- version tag
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|     local git_vernum=${vernum}
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| 
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|     # Update FLATCAR_VERSION[_ID], BUILD_ID, and SDK in versionfile
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|     (
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|         source sdk_lib/sdk_container_common.sh
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|         create_versionfile "${vernum}"
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|     )
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|     if [[ -n ${CIA_DEBUGTESTRUN:-} ]]; then
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|         set -x
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|     fi
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|     update_and_push_version "${version}" "${target_branch}"
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|     if [[ -n ${CIA_DEBUGTESTRUN:-} ]]; then
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|         exit 0
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|     fi
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|     apply_local_patches
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| 
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|     ./bootstrap_sdk_container -x ./ci-cleanup.sh "${seed_version}" "${vernum}"
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| 
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|     # push SDK tarball to buildcache
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|     # Get Flatcar version number format (separator is '+' instead of '-',
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|     # equal to $(strip_version_prefix "$version")
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|     source sdk_container/.repo/manifests/version.txt
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|     local dest_tarball="flatcar-sdk-${ARCH}-${FLATCAR_SDK_VERSION}.tar.bz2"
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| 
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|     # change the owner of the files and directories in __build__ back
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|     # to ourselves, otherwise we could fail to sign the artifacts as
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|     # we lacked write permissions in the directory of the signed
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|     # artifact
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|     local uid
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|     local gid
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|     uid=$(id --user)
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|     gid=$(id --group)
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|     sudo chown --recursive "${uid}:${gid}" __build__
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|     (
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|         cd "__build__/images/catalyst/builds/flatcar-sdk"
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|         create_digests "${SIGNER}" "${dest_tarball}"
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|         sign_artifacts "${SIGNER}" "${dest_tarball}"*
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|         copy_to_buildcache "sdk/${ARCH}/${FLATCAR_SDK_VERSION}" "${dest_tarball}"*
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|     )
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| }
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| # --
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