obs-service-docker_label_he.../docker_label_helper

29 lines
902 B
Bash

#!/bin/bash
set -eu
file="Dockerfile"
if [ "${BUILD_DIST+x}" != "x" ]; then
echo "Not running in an OBS build container"
exit 1
fi
BUILD_DATA="${BUILD_DIST/.dist/.data}"
if [ -e "${BUILD_DATA}" ]; then
. "${BUILD_DATA}"
# The build script renames the recipe (to strip _service:foo:), but doesn't update .data
file="${RECIPEFILE##*:}"
if [[ ! "${file}" =~ ^Dockerfile.* ]]; then
echo "Recipe ${file} is not a Dockerfile - exiting"
exit 0
fi
fi
# Note: Avoid assigning to $1 etc. as that converts whitespace (field separators) to single spaces.
gawk -i inplace '
match($0, /^# labelprefix=(.*)$/, m) { labelprefix=m[1]; next }
labelprefix != "" && match($0, /^(PREFIXED)?LABEL[[:space:]]+[^=]*\.([^.=]*)=(.*)$/, m) { printf "LABEL %s.%s=%s\n", labelprefix, m[2], m[3]; gsub(/^PREFIXEDLABEL/, "LABEL") }
match($0, /^# endlabelprefix/) { labelprefix=""; next }
1' "${file}"