Allow CI to embed version info at build time for CLI
- Prevent the server binary from lying about its version number by having it report "?.?.?" as its version number for now. - Later we can devise a way for CI to inject the version number for the server into the container image at release time, not at build time, since the version number is not known at build time. - Pre-release builds of the binary from before the release stage or builds on developer workstation will also report "?.?.?" as its version number, which is fine since they are not official releases and shouldn't find their way to the public.
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Ryan Richard
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@ -14,45 +14,18 @@
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# -----------------------------------------------------------------------------
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# Version management helpers. These functions help to set, save and load the
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# following variables:
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#
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# KUBE_GIT_COMMIT - The git commit id corresponding to this
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# source code.
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# KUBE_GIT_TREE_STATE - "clean" indicates no changes since the git commit id
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# "dirty" indicates source code changes after the git commit id
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# "archive" indicates the tree was produced by 'git archive'
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# KUBE_GIT_VERSION - "vX.Y" used to indicate the last release version.
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# KUBE_GIT_MAJOR - The major part of the version
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# KUBE_GIT_MINOR - The minor component of the version
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# This has been changed from kube's default version.sh to expect KUBE_GIT_VERSION to be set
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# by the caller. If it is set, it must be a semver version number, and it will be included
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# in the result. If it is not set, then defaults indicating that the version is unknown will
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# be included in the result.
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#
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# These changes are to allow the CI build steps to set the version number at build time
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# without using the original behavior of this script, which was to look at previous git
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# tags to guess the version number.
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#
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# Grovels through git to set a set of env variables.
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#
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# If KUBE_GIT_VERSION_FILE, this function will load from that file instead of
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# querying git.
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kube::version::get_version_vars() {
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if [[ -n ${KUBE_GIT_VERSION_FILE-} ]]; then
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kube::version::load_version_vars "${KUBE_GIT_VERSION_FILE}"
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return
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fi
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# If the kubernetes source was exported through git archive, then
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# we likely don't have a git tree, but these magic values may be filled in.
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# shellcheck disable=SC2016,SC2050
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# Disabled as we're not expanding these at runtime, but rather expecting
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# that another tool may have expanded these and rewritten the source (!)
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if [[ '$Format:%%$' == "%" ]]; then
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KUBE_GIT_COMMIT='$Format:%H$'
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KUBE_GIT_TREE_STATE="archive"
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# When a 'git archive' is exported, the '$Format:%D$' below will look
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# something like 'HEAD -> release-1.8, tag: v1.8.3' where then 'tag: '
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# can be extracted from it.
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if [[ '$Format:%D$' =~ tag:\ (v[^ ,]+) ]]; then
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KUBE_GIT_VERSION="${BASH_REMATCH[1]}"
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fi
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fi
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local git=(git --work-tree "${KUBE_ROOT}")
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if [[ -n ${KUBE_GIT_COMMIT-} ]] || KUBE_GIT_COMMIT=$("${git[@]}" rev-parse "HEAD^{commit}" 2>/dev/null); then
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@ -65,28 +38,20 @@ kube::version::get_version_vars() {
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fi
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fi
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# Use git describe to find the version based on tags.
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if [[ -n ${KUBE_GIT_VERSION-} ]] || KUBE_GIT_VERSION=$("${git[@]}" describe --tags --match='v*' --abbrev=14 "${KUBE_GIT_COMMIT}^{commit}" 2>/dev/null); then
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# This translates the "git describe" to an actual semver.org
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# compatible semantic version that looks something like this:
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# v1.1.0-alpha.0.6+84c76d1142ea4d
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#
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# xTODO: We continue calling this "git version" because so many
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# downstream consumers are expecting it there.
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#
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# These regexes are painful enough in sed...
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# We don't want to do them in pure shell, so disable SC2001
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# shellcheck disable=SC2001
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DASHES_IN_VERSION=$(echo "${KUBE_GIT_VERSION}" | sed "s/[^-]//g")
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if [[ "${DASHES_IN_VERSION}" == "---" ]] ; then
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# shellcheck disable=SC2001
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# We have distance to subversion (v1.1.0-subversion-1-gCommitHash)
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KUBE_GIT_VERSION=$(echo "${KUBE_GIT_VERSION}" | sed "s/-\([0-9]\{1,\}\)-g\([0-9a-f]\{14\}\)$/.\1\+\2/")
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elif [[ "${DASHES_IN_VERSION}" == "--" ]] ; then
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# shellcheck disable=SC2001
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# We have distance to base tag (v1.1.0-1-gCommitHash)
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KUBE_GIT_VERSION=$(echo "${KUBE_GIT_VERSION}" | sed "s/-g\([0-9a-f]\{14\}\)$/+\1/")
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# If KUBE_GIT_VERSION is supplied and is not a valid Semantic Version, then refuse to build.
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if [[ -n "${KUBE_GIT_VERSION:-""}" ]]; then
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if ! [[ "${KUBE_GIT_VERSION}" =~ ^v([0-9]+)\.([0-9]+)(\.[0-9]+)?(-[0-9A-Za-z.-]+)?(\+[0-9A-Za-z.-]+)?$ ]]; then
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echo "KUBE_GIT_VERSION should be a valid Semantic Version starting with a \"v\". Current value: ${KUBE_GIT_VERSION}"
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echo "Please see more details here: https://semver.org"
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exit 1
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fi
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if [[ "${KUBE_GIT_VERSION}" =~ ^v([0-9]+)\.([0-9]+)(\.[0-9]+)?([-].*)?([+].*)?$ ]]; then
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KUBE_GIT_MAJOR=${BASH_REMATCH[1]}
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KUBE_GIT_MINOR=${BASH_REMATCH[2]}
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fi
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if [[ "${KUBE_GIT_TREE_STATE}" == "dirty" ]]; then
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# git describe --dirty only considers changes to existing files, but
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# that is problematic since new untracked .go files affect the build,
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@ -94,54 +59,13 @@ kube::version::get_version_vars() {
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KUBE_GIT_VERSION+="-dirty"
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fi
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# Try to match the "git describe" output to a regex to try to extract
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# the "major" and "minor" versions and whether this is the exact tagged
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# version or whether the tree is between two tagged versions.
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if [[ "${KUBE_GIT_VERSION}" =~ ^v([0-9]+)\.([0-9]+)(\.[0-9]+)?([-].*)?([+].*)?$ ]]; then
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KUBE_GIT_MAJOR=${BASH_REMATCH[1]}
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KUBE_GIT_MINOR=${BASH_REMATCH[2]}
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if [[ -n "${BASH_REMATCH[4]}" ]]; then
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KUBE_GIT_MINOR+="+"
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else
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# KUBE_GIT_VERSION was not supplied
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KUBE_GIT_VERSION='?.?.?'
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KUBE_GIT_MAJOR='?'
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KUBE_GIT_MINOR='?'
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fi
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fi
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# If KUBE_GIT_VERSION is not a valid Semantic Version, then refuse to build.
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if ! [[ "${KUBE_GIT_VERSION}" =~ ^v([0-9]+)\.([0-9]+)(\.[0-9]+)?(-[0-9A-Za-z.-]+)?(\+[0-9A-Za-z.-]+)?$ ]]; then
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echo "KUBE_GIT_VERSION should be a valid Semantic Version. Current value: ${KUBE_GIT_VERSION}"
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echo "Please see more details here: https://semver.org"
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exit 1
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fi
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fi
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fi
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}
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# Saves the environment flags to $1
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kube::version::save_version_vars() {
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local version_file=${1-}
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[[ -n ${version_file} ]] || {
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echo "!!! Internal error. No file specified in kube::version::save_version_vars"
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return 1
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}
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cat <<EOF >"${version_file}"
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KUBE_GIT_COMMIT='${KUBE_GIT_COMMIT-}'
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KUBE_GIT_TREE_STATE='${KUBE_GIT_TREE_STATE-}'
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KUBE_GIT_VERSION='${KUBE_GIT_VERSION-}'
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KUBE_GIT_MAJOR='${KUBE_GIT_MAJOR-}'
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KUBE_GIT_MINOR='${KUBE_GIT_MINOR-}'
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EOF
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}
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# Loads up the version variables from file $1
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kube::version::load_version_vars() {
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local version_file=${1-}
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[[ -n ${version_file} ]] || {
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echo "!!! Internal error. No file specified in kube::version::load_version_vars"
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return 1
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}
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source "${version_file}"
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}
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# Prints the value that needs to be passed to the -ldflags parameter of go build
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