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#!/bin/bash
# This script produces various bits of metadata needed by Makefile. Using
# a script allows uniform behavior across multiple environments and
# distributions. The script expects a single argument, as reflected below.
set -euo pipefail
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
cd "${GOSRC:-${DIR}/../}"
valid_args() {
REGEX='^\s+[[:upper:]]+\*[)]'
egrep --text --no-filename --group-separator=' ' --only-matching "$REGEX" "$0" | \
cut -d '*' -f 1
}
unset OUTPUT
case "$1" in
# Wild-card suffix needed by valid_args() e.g. possible bad grep of "$(echo $FOO)"
VERSION*)
OUTPUT="${CIRRUS_TAG:-$(git fetch --tags && git describe HEAD 2> /dev/null)}"
;;
NUMBER*)
OUTPUT="$($0 VERSION | sed 's/-.*//')"
;;
DIST_VER*)
OUTPUT="$(source /etc/os-release; echo $VERSION_ID | cut -d '.' -f 1)"
;;
DIST*)
OUTPUT="$(source /etc/os-release; echo $ID)"
;;
ARCH*)
OUTPUT="${GOARCH:-$(go env GOARCH 2> /dev/null)}"
;;
BASENAME*)
OUTPUT="podman"
;;
REMOTENAME*)
OUTPUT="$($0 BASENAME)-remote"
;;
*)
echo "Error, unknown/unsupported argument '$1', valid arguments:"
valid_args
exit 1
;;
esac
if [[ -n "$OUTPUT" ]]
then
echo -n "$OUTPUT"
else
echo "Error, empty output for info: '$1'" > /dev/stderr
exit 2
fi
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