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vnidrop/packaging/linux/resolve-version.sh

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#!/usr/bin/env bash
set -euo pipefail
version=${1:-1.0.0}
if [[ ${GITHUB_REF_TYPE:-} == "tag" ]]; then
if [[ ! ${GITHUB_REF_NAME:-} =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
echo "Linux release tags must use vMAJOR.MINOR.PATCH" >&2
exit 1
fi
version=${GITHUB_REF_NAME#v}
fi
if [[ ! $version =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
echo "Version must use MAJOR.MINOR.PATCH" >&2
exit 1
fi
IFS=. read -r major minor patch <<< "$version"
parts=("$major" "$minor" "$patch")
for index in "${!parts[@]}"; do
part=${parts[$index]}
if [[ $part != "0" && $part == 0* ]]; then
echo "Version components must be canonical integers without leading zeroes" >&2
exit 1
fi
if (( ${#part} > 5 )) || (( 10#$part > 65535 )); then
echo "Version components must be between 0 and 65535" >&2
exit 1
fi
if (( index == 0 && 10#$part == 0 )); then
echo "The major version must be non-zero" >&2
exit 1
fi
done
printf '%s\n' "$version"