blob: 588407260032b517d7a27f7443ff3f419a638975 [file] [log] [blame]
#!/bin/bash -e
# Copyright 2023 Google LLC
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# This script is intended to be passed to Bazel using the --workspace_status_command command-line
# flag. It defines various key/value pairs, such as the Git hash or clean/dirty status, which can be
# used from BUILD files, e.g. to tag Docker images.
#
# See https://bazel.build/docs/user-manual#flag--workspace_status_command.
# Default values used if we are outside of a Git checkout, e.g. when building inside a tryjob.
STABLE_GIT_REVISION=unversioned
STABLE_GIT_STATUS=unversioned
# If we are inside a Git checkout, then obtain the Git revision and the clean/dirty status.
if git status > /dev/null 2> /dev/null; then
STABLE_GIT_REVISION=`git rev-parse HEAD`
# Check whether there are any uncommitted changes.
#
# Based on:
# https://skia.googlesource.com/buildbot/+/cdbd6dc7cd9e06604042bb53a6179a77b4c83c25/bash/docker_build.sh#53
STABLE_GIT_STATUS=clean
# Detect if we have unchecked in local changes, or if we're not on the main branch (possibly at
# an older revision).
git fetch > /dev/null
# diff-index requires update-index --refresh; see:
# https://stackoverflow.com/questions/36367190/git-diff-files-output-changes-after-git-status/36439778#36439778
if git update-index --refresh > /dev/null ; then
if ! git diff-index --quiet HEAD -- ; then
# Repository is dirty due to modified files.
STABLE_GIT_STATUS=dirty
elif ! git merge-base --is-ancestor HEAD origin/main ; then
# Repository is dirty because we're not on the main branch (possibly an older revision).
STABLE_GIT_STATUS=dirty
fi
else
# Repository is dirty due to checked out files.
STABLE_GIT_STATUS=dirty
fi
fi
BUILD_DATETIME=`date -u +%Y-%m-%dT%H_%M_%SZ`
echo "BUILD_DATETIME $BUILD_DATETIME"
echo "STABLE_GIT_REVISION $STABLE_GIT_REVISION"
echo "STABLE_GIT_STATUS $STABLE_GIT_STATUS"
# If the format of this ever changes then please also update k8s_checker/main.go.
echo "STABLE_DOCKER_TAG ${BUILD_DATETIME}-${USER}-${STABLE_GIT_REVISION:0:7}-${STABLE_GIT_STATUS}"