1#!/bin/bash -e 2# Copyright 2023 Google LLC 3# 4# Use of this source code is governed by a BSD-style license that can be 5# found in the LICENSE file. 6# 7# This script is intended to be passed to Bazel using the --workspace_status_command command-line 8# flag. It defines various key/value pairs, such as the Git hash or clean/dirty status, which can be 9# used from BUILD files, e.g. to tag Docker images. 10# 11# See https://bazel.build/docs/user-manual#flag--workspace_status_command. 12 13# Default values used if we are outside of a Git checkout, e.g. when building inside a tryjob. 14STABLE_GIT_REVISION=unversioned 15STABLE_GIT_STATUS=unversioned 16 17# If we are inside a Git checkout, then obtain the Git revision and the clean/dirty status. 18if git status > /dev/null 2> /dev/null; then 19 STABLE_GIT_REVISION=`git rev-parse HEAD` 20 21 # Check whether there are any uncommitted changes. 22 # 23 # Based on: 24 # https://skia.googlesource.com/buildbot/+/cdbd6dc7cd9e06604042bb53a6179a77b4c83c25/bash/docker_build.sh#53 25 STABLE_GIT_STATUS=clean 26 # Detect if we have unchecked in local changes, or if we're not on the main branch (possibly at 27 # an older revision). 28 git fetch > /dev/null 29 # diff-index requires update-index --refresh; see: 30 # https://stackoverflow.com/questions/36367190/git-diff-files-output-changes-after-git-status/36439778#36439778 31 if git update-index --refresh > /dev/null ; then 32 if ! git diff-index --quiet HEAD -- ; then 33 # Repository is dirty due to modified files. 34 STABLE_GIT_STATUS=dirty 35 elif ! git merge-base --is-ancestor HEAD origin/main ; then 36 # Repository is dirty because we're not on the main branch (possibly an older revision). 37 STABLE_GIT_STATUS=dirty 38 fi 39 else 40 # Repository is dirty due to checked out files. 41 STABLE_GIT_STATUS=dirty 42 fi 43fi 44 45BUILD_DATETIME=`date -u +%Y-%m-%dT%H_%M_%SZ` 46 47echo "BUILD_DATETIME $BUILD_DATETIME" 48echo "STABLE_GIT_REVISION $STABLE_GIT_REVISION" 49echo "STABLE_GIT_STATUS $STABLE_GIT_STATUS" 50 51# If the format of this ever changes then please also update k8s_checker/main.go. 52echo "STABLE_DOCKER_TAG ${BUILD_DATETIME}-${USER}-${STABLE_GIT_REVISION:0:7}-${STABLE_GIT_STATUS}" 53