mirror of
https://github.com/flatcar/scripts.git
synced 2025-08-06 20:47:00 +02:00
782bb560e6
- 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.
164 lines
6.6 KiB
Bash
164 lines
6.6 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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# >>> This file is supposed to be SOURCED from the repository ROOT. <<<
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#
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# packages_tag() should be called w/ the positional INPUT parameters below.
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# build tag automation stub.
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# This script will update the versionfile with the OS packages version to build,
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# and will add a version tag (see INPUT) to the scripts repo.
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#
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# PREREQUISITES:
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#
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# 1. SDK version is recorded in sdk_container/.repo/manifests/version.txt
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# 2. SDK container is either
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# - available via ghcr.io/flatcar/flatcar-sdk-[ARCH]:[VERSION] (official SDK release)
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# OR
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# - available via build cache server "/containers/[VERSION]/flatcar-sdk-[ARCH]-[VERSION].tar.gz"
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# (dev SDK)
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#
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# INPUT:
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#
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# 1. Version of the TARGET OS image to build (string).
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# The version pattern '(alpha|beta|stable|lts)-MMMM.m.p' (e.g. 'alpha-3051.0.0')
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# 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. 'alpha-3051.0.0-nightly-4302') for development / CI builds.
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# A tag of this version will be created in the scripts repo and pushed upstream.
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#
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#
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# OPTIONAL INPUT:
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#
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# 1. A file ../scripts.patch to apply with "git am -3" for the scripts repo.
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#
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# 2. 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. Updated scripts repository
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# - version tag
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# - sdk_container/.repo/manifests/version.txt denotes new FLATCAR OS version
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# 2. "./skip-build" as flag file to signal that the build should stop
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function packages_tag() {
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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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_packages_tag_impl "${@}"
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)
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}
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# --
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function _packages_tag_impl() {
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local version=${1}
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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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check_version_string "${version}"
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source sdk_container/.repo/manifests/version.txt
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local sdk_version=${FLATCAR_SDK_VERSION}
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if [[ -n ${CIA_DEBUGTESTRUN:-} ]]; then
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set -x
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fi
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# Create new tag in scripts repo w/ updated versionfile
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# Also push the changes to the branch ONLY IF we're doing a nightly
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# build of the 'flatcar-MAJOR' branch AND we're definitely ON the respective branch
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local target_branch=''
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# These variables are here to make it easier to test nightly
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# builds without messing with actual release branches.
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local flatcar_branch_prefix=${CIA_DEBUGFLATCARBRANCHPREFIX:-flatcar}
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local nightly=${CIA_DEBUGNIGHTLY:-nightly}
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# Matches the usual nightly tag name (stable-1234.2.3-nightly-yyyymmdd-hhmm)
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local nightly_pattern='^(stable|alpha|beta|lts)-([0-9]+)(\.[0-9]+){2}-'"${nightly}"'-[0-9]{8}-[0-9]{4}$'
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local -i major_version=0
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local branch_name=''
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local branch_hash=''
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if [[ ${version} =~ ${nightly_pattern} ]]; then
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major_version=${BASH_REMATCH[2]}
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branch_name=${flatcar_branch_prefix}-${major_version}
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branch_hash=$(git rev-parse "origin/${branch_name}")
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fi
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local -a existing_tags=()
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if [[ -n ${branch_hash} ]]; then
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if [[ $(git rev-parse HEAD) != "${branch_hash}" ]]; then
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echo "We are doing a nightly build but we are not on top of the ${branch_name} branch. This is wrong and would result in the nightly tag not being a part of the branch." >&2
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exit 1
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fi
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target_branch=${branch_name}
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# Check for the existing tag only when we allow shortcutting
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# the builds. That way we can skip the checks for build
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# 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 of git tag is always 0; output may be empty,
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# but may also have multiple tags
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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_or_release_tag=''
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if [[ major_version -gt 0 && ${#existing_tags[@]} -gt 0 ]]; then
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local nightly_or_release_pattern='^(stable|alpha|beta|lts)-'"${major_version}"'(\.[0-9]+){2}(-'"${nightly}"'-[0-9]{8}-[0-9]{4})?$'
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local tag
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for tag in "${existing_tags[@]}"; do
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if [[ ${tag} =~ ${nightly_or_release_pattern} ]]; then
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nightly_or_release_tag=${tag}
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break
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fi
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done
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fi
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# If the found tag is a release or nightly tag, we stop this build
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# if there are no changes and the relevant images can be found in
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# bincache.
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if [[ -n ${nightly_or_release_tag} ]]; then
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local -i ret=0
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git diff --exit-code --quiet "${nightly_or_release_tag}" || ret=$?
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if [[ ret -eq 0 ]]; then
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# no changes in the code, but check if images exist (they
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# could be missing if build failed)
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if check_bincache_images_existence \
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"https://${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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touch ./skip-build
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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 ${nightly_or_release_tag} and the Flatcar images exist" >&2
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return 0
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fi
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echo "No changes but continuing build because Flatcar images do not exist"
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elif [[ ret -eq 1 ]]; then
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echo "HEAD is tagged with a nightly tag and yet there a differences? This is fishy and needs to be investigated. Maybe you forgot to commit your changes?" >&2
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exit 1
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else
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echo "Error: Unexpected git diff return code (${ret})" >&2
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return 1
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fi
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fi
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if [[ -n ${CIA_DEBUGTESTRUN:-} ]]; then
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set +x
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fi
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# Create version file
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(
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source sdk_lib/sdk_container_common.sh
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create_versionfile "${sdk_version}" "${version}"
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)
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if [[ -n ${CIA_DEBUGTESTRUN:-} ]]; then
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set -x
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fi
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update_and_push_version "${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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# --
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