| #!/usr/bin/env bash |
| |
| # SPDX-FileCopyrightText: 2018-2022 Open Networking Foundation |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| set -eu -o pipefail |
| |
| VERSIONFILE="" # file path to file containing version number |
| NEW_VERSION="" # version number found in $VERSIONFILE |
| TAG_VERSION="" # version file that might have a leading v to work around go mod funkyness |
| |
| SEMVER_STRICT=${SEMVER_STRICT:-0} # require semver versions |
| DOCKERPARENT_STRICT=${DOCKERPARENT_STRICT:-1} # require semver versions on parent images in dockerfiles |
| |
| releaseversion=0 |
| fail_validation=0 |
| |
| # when not running under Jenkins, use current dir as workspace |
| WORKSPACE=${WORKSPACE:-.} |
| BASEDIR=${BASEDIR:-} |
| |
| # cd to the code checkout location |
| cd "$WORKSPACE/$BASEDIR" |
| |
| # find the version string in the repo, read into NEW_VERSION |
| # Add additional places NEW_VERSION could be found to this function |
| function read_version { |
| if [ -f "VERSION" ] |
| then |
| NEW_VERSION=$(head -n1 "VERSION") |
| VERSIONFILE="VERSION" |
| |
| # If this is a golang project, use funky v-prefixed versions |
| if [ -f "Gopkg.toml" ] || [ -f "go.mod" ] |
| then |
| echo "go-based project found, using v-prefixed version for git tags: v${NEW_VERSION}" |
| TAG_VERSION=v${NEW_VERSION} |
| else |
| TAG_VERSION=${NEW_VERSION} |
| fi |
| |
| elif [ -f "package.json" ] |
| then |
| NEW_VERSION=$(python -c 'import json,sys;obj=json.load(sys.stdin); print obj["version"]' < package.json) |
| TAG_VERSION=$NEW_VERSION |
| VERSIONFILE="package.json" |
| elif [ -f "pom.xml" ] |
| then |
| NEW_VERSION=$(xmllint --xpath '/*[local-name()="project"]/*[local-name()="version"]/text()' pom.xml) |
| TAG_VERSION=$NEW_VERSION |
| VERSIONFILE="pom.xml" |
| else |
| echo "ERROR: No versioning file found!" |
| fail_validation=1 |
| fi |
| } |
| |
| # check if the version is a released version |
| function check_if_releaseversion { |
| if [[ "$NEW_VERSION" =~ ^([0-9]+)\.([0-9]+)\.([0-9]+)$ ]] |
| then |
| echo "Version string '$NEW_VERSION' found in '$VERSIONFILE' is a SemVer released version!" |
| releaseversion=1 |
| else |
| if [ "$SEMVER_STRICT" -eq "1" ] |
| then |
| echo "Version string '$NEW_VERSION' in '$VERSIONFILE' is not a SemVer released version, SEMVER_STRICT enabled, failing!" |
| fail_validation=1 |
| else |
| echo "Version string '$NEW_VERSION' in '$VERSIONFILE' is not a SemVer released version, skipping." |
| fi |
| fi |
| } |
| |
| # check if the version is already a tag in git |
| function is_git_tag_duplicated { |
| for existing_tag in $existing_tags |
| do |
| if [ "$TAG_VERSION" = "$existing_tag" ] |
| then |
| echo "ERROR: Duplicate tag: $existing_tag" |
| fail_validation=2 |
| fi |
| done |
| } |
| |
| # from https://github.com/cloudflare/semver_bash/blob/master/semver.sh |
| function semverParseInto() { |
| local RE='[^0-9]*\([0-9]*\)[.]\([0-9]*\)[.]\([0-9]*\)\([0-9A-Za-z-]*\)' |
| #MAJOR |
| eval $2=`echo $1 | sed -e "s#$RE#\1#"` |
| #MINOR |
| eval $3=`echo $1 | sed -e "s#$RE#\2#"` |
| #MINOR |
| eval $4=`echo $1 | sed -e "s#$RE#\3#"` |
| #SPECIAL |
| eval $5=`echo $1 | sed -e "s#$RE#\4#"` |
| } |
| |
| # if it's a -dev version check if a previous tag has been created (to avoid going from 2.7.0-dev to 2.7.1-dev) |
| function is_valid_version { |
| local MAJOR=0 MINOR=0 PATCH=0 SPECIAL="" |
| local C_MAJOR=0 C_MINOR=0 C_PATCH=0 C_SPECIAL="" # these are used in the inner loops to compare |
| |
| semverParseInto $NEW_VERSION MAJOR MINOR PATCH SPECIAL |
| |
| found_parent=false |
| |
| # if minor == 0, check that there was a release with MAJOR-1.X.X |
| if [[ "$MINOR" == 0 ]]; then |
| new_major=$(( $MAJOR - 1 )) |
| parent_version="$new_major.x.x" |
| for existing_tag in $existing_tags |
| do |
| semverParseInto $existing_tag C_MAJOR C_MINOR C_PATCH C_SPECIAL |
| if [[ "$new_major" == "$C_MAJOR" ]]; then |
| found_parent=true |
| fi |
| done |
| fi |
| |
| # if patch == 0, check that there was a release with MAJOR.MINOR-1.X |
| if [[ "$PATCH" == 0 ]]; then |
| new_minor=$(( $MINOR - 1 )) |
| parent_version="$MAJOR.$new_minor.x" |
| for existing_tag in $existing_tags |
| do |
| semverParseInto $existing_tag C_MAJOR C_MINOR C_PATCH C_SPECIAL |
| if [[ "$new_minor" == "$C_MINOR" ]]; then |
| found_parent=true |
| fi |
| done |
| fi |
| |
| # if patch != 0 check that there was a release with MAJOR.MINOR.PATCH-1 |
| if [[ "$PATCH" != 0 ]]; then |
| new_patch=$(( $PATCH - 1 )) |
| parent_version="$MAJOR.$MINOR.$new_patch" |
| for existing_tag in $existing_tags |
| do |
| semverParseInto $existing_tag C_MAJOR C_MINOR C_PATCH C_SPECIAL |
| if [[ "$MAJOR" == "$C_MAJOR" && "$MINOR" == "$C_MINOR" && "$new_patch" == "$C_PATCH" ]] |
| then |
| found_parent=true |
| fi |
| done |
| fi |
| |
| # if we are the beginning the is no parent, but that's fine |
| if [[ "$MAJOR" == 0 ]]; then |
| found_parent=true |
| fi |
| |
| if [[ $found_parent == false ]]; then |
| echo "Invalid $NEW_VERSION version. Expected parent version $parent_version does not exist." |
| fail_validation=1 |
| fi |
| } |
| |
| # check if Dockerfiles have a released version as their parent |
| function dockerfile_parentcheck { |
| if [ "$DOCKERPARENT_STRICT" -eq "0" ]; |
| then |
| echo "DOCKERPARENT_STRICT is disabled - skipping parent checks" |
| else |
| while IFS= read -r -d '' dockerfile |
| do |
| echo "Checking dockerfile: '$dockerfile'" |
| |
| # split on newlines |
| IFS=$'\n' |
| df_parents=($(grep "^FROM" "$dockerfile")) |
| |
| # check all parents in the Dockerfile |
| for df_parent in "${df_parents[@]}" |
| do |
| |
| df_pattern="[FfRrOoMm] +(--platform=[^ ]+ +)?([^@: ]+)(:([^: ]+)|@sha[^ ]+)?" |
| if [[ "$df_parent" =~ $df_pattern ]] |
| then |
| |
| p_image="${BASH_REMATCH[2]}" |
| p_sha=${BASH_REMATCH[3]} |
| p_version="${BASH_REMATCH[4]}" |
| |
| echo "IMAGE: '${p_image}'" |
| echo "VERSION: '$p_version'" |
| echo "SHA: '$p_sha'" |
| |
| if [[ "${p_image}" == "scratch" ]] |
| then |
| echo " OK: Using the versionless 'scratch' parent: '$df_parent'" |
| elif [[ "${p_image}:${p_version}" == "gcr.io/distroless/static:nonroot" ]] |
| then |
| echo " OK: Using static distroless image with nonroot: '${p_image}:${p_version}'" |
| elif [[ "${p_version}" =~ ^([0-9]+)\.([0-9]+)\.([0-9]+)$ ]] |
| then |
| echo " OK: Parent '$p_image:$p_version' is a released SemVer version" |
| elif [[ "${p_sha}" =~ ^@sha256:[0-9a-f]{64}.*$ ]] |
| then |
| # allow sha256 hashes to be used as version specifiers |
| echo " OK: Parent '$p_image$p_sha' is using a specific sha256 hash as a version" |
| elif [[ "${p_version}" =~ ^.*([0-9]+)\.([0-9]+).*$ ]] |
| then |
| # handle non-SemVer versions that have a Major.Minor version specifier in the name |
| # 'ubuntu:16.04' |
| # 'postgres:10.3-alpine' |
| # 'openjdk:8-jre-alpine3.8' |
| echo " OK: Parent '$p_image:$p_version' is using a non-SemVer, but sufficient, version" |
| elif [[ -z "${p_version}" ]] |
| then |
| echo " ERROR: Parent '$p_image' is NOT using a specific version" |
| fail_validation=1 |
| else |
| echo " ERROR: Parent '$p_image:$p_version' is NOT using a specific version" |
| fail_validation=1 |
| fi |
| |
| else |
| echo " ERROR: Couldn't find a parent image in $df_parent" |
| fi |
| |
| done |
| |
| done < <( find "${WORKSPACE}" -name 'Dockerfile*' ! -path "*/vendor/*" ! -name "*dockerignore" -print0 ) |
| fi |
| } |
| |
| # Start of actual code |
| echo "Checking git repo with remotes:" |
| git remote -v |
| |
| echo "Branches:" |
| branches=$(git branch -v) |
| echo $branches |
| |
| echo "Existing git tags:" |
| existing_tags=$(git tag -l) |
| echo $existing_tags |
| |
| read_version |
| is_valid_version |
| check_if_releaseversion |
| |
| # perform checks if a released version |
| if [ "$releaseversion" -eq "1" ] |
| then |
| is_git_tag_duplicated |
| dockerfile_parentcheck |
| fi |
| |
| exit $fail_validation |