#!/bin/sh

# Shared helpers for Narratio's checked-in release scripts. This file is
# intentionally source-only and has no effect when loaded.

narratio_release_fail() {
	tool_name=$1
	shift
	printf '%s: %s\n' "$tool_name" "$*" >&2
	exit 1
}

narratio_release_validate_version() {
	version=$1
	case $version in
		v*.*.*) ;;
		*) return 1 ;;
	esac
	components=${version#v}
	if [ "$components" = "$version" ]; then
		return 1
	fi

	previous_ifs=$IFS
	IFS=.
	set -- $components
	IFS=$previous_ifs
	if [ "$#" -ne 3 ]; then
		return 1
	fi
	for component in "$@"; do
		case $component in
			0 | [1-9]*) ;;
			*) return 1 ;;
		esac
		case $component in
			*[!0-9]*) return 1 ;;
		esac
	done
}

narratio_release_repo_root() (
	script_path=$1
	script_dir=$(CDPATH= cd "$(dirname "$script_path")" && pwd -P) || return 1
	CDPATH= cd "$script_dir/.." && pwd -P
)