75 lines
2.9 KiB
Bash
Executable File
75 lines
2.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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if [[ -n ${GIT_COMMIT-} ]] || GIT_COMMIT=$(git rev-parse "HEAD^{commit}" 2>/dev/null); then
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if [[ -z ${GIT_TREE_STATE-} ]]; then
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# Check if the tree is dirty. default to dirty
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if git_status=$(git status --porcelain 2>/dev/null) && [[ -z ${git_status} ]]; then
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GIT_TREE_STATE="clean"
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else
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GIT_TREE_STATE="dirty"
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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 ${GIT_VERSION-} ]] || GIT_VERSION=$(git describe --tags --abbrev=14 "${GIT_COMMIT}^{commit}" 2>/dev/null); then
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# This translates the "git describe" to an actual semver.org
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# compatible semantic version that looks something like this:
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# v1.0.0-beta.0.10+4c183422345d8f
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#
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# downstream consumers are expecting it there.
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DASHES_IN_VERSION=$(echo "${GIT_VERSION}" | sed "s/[^-]//g")
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if [[ "${DASHES_IN_VERSION}" == "---" ]] ; then
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# We have distance to subversion (v1.1.0-subversion-1-gCommitHash)
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GIT_VERSION=$(echo "${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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# We have distance to base tag (v1.1.0-1-gCommitHash)
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GIT_VERSION=$(echo "${GIT_VERSION}" | sed "s/-g\([0-9a-f]\{14\}\)$/+\1/")
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fi
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if [[ "${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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# so use our idea of "dirty" from git status instead.
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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 [[ "${GIT_VERSION}" =~ ^v([0-9]+)\.([0-9]+)(\.[0-9]+)?([-].*)?([+].*)?$ ]]; then
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GIT_MAJOR=${BASH_REMATCH[1]}
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GIT_MINOR=${BASH_REMATCH[2]}
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if [[ -n "${BASH_REMATCH[4]}" ]]; then
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GIT_MINOR+="+"
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fi
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fi
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# If GIT_VERSION is not a valid Semantic Version, then refuse to build.
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if ! [[ "${GIT_VERSION}" =~ ^v([0-9]+)\.([0-9]+)(\.[0-9]+)?(-[0-9A-Za-z.-]+)?(\+[0-9A-Za-z.-]+)?$ ]]; then
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echo "GIT_VERSION should be a valid Semantic Version. Current value: ${GIT_VERSION}"
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echo "Please see more details here: https://semver.org"
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exit 1
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fi
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fi
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fi
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function add_ldflag() {
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local key=${1}
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local val=${2}
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ldflags+=(
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"-X 'k8s.io/component-base/version.${key}=${val}'"
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)
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}
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SOURCE_DATE_EPOCH=$(git show -s --format=format:%ct HEAD)
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add_ldflag "buildDate" "$(date ${SOURCE_DATE_EPOCH:+"--date=@${SOURCE_DATE_EPOCH}"} -u +'%Y-%m-%dT%H:%M:%SZ')"
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add_ldflag "gitCommit" "${GIT_COMMIT}"
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add_ldflag "gitTreeState" "${GIT_TREE_STATE}"
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add_ldflag "gitVersion" "${GIT_VERSION}"
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add_ldflag "gitMajor" "${GIT_MAJOR}"
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add_ldflag "gitMinor" "${GIT_MINOR}"
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# The -ldflags parameter takes a single string, so join the output.
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echo "${ldflags[*]-}"
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