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aos
GitHub Repository: aos/grafana-agent
 Path: blob/main/tools/image-tag
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#!/usr/bin/env bash
set -o errexit
set -o pipefail

if [ ! -z "${RELEASE_TAG}" ]; then
  echo ${RELEASE_TAG}
  exit 0
fi

set -o nounset

WIP=$(git diff --quiet || echo '-WIP')
BRANCH=$(git rev-parse --abbrev-ref HEAD | sed 's#/#-#g')

# When 7 chars are not enough to be unique, git automatically uses more.
# We are forcing to 7 here, as we are doing for grafana/grafana as well.
SHA=$(git rev-parse --short=7 HEAD | head -c7)

# If this is a tag, use it, otherwise use <branch>-<hash>
TAG=$(git describe --exact-match 2> /dev/null || echo "${BRANCH}-${SHA}")
echo ${TAG}${WIP}