#!/usr/bin/env bash

# Do not add "x"
set -eu -o pipefail

BUILD_DIR="${WORKSPACE}/build"
FALCOBUILDER_IMAGE="falcosecurity/falco-builder"

docker pull $FALCOBUILDER_IMAGE > /dev/null

rm -rf "$BUILD_DIR"
mkdir "$BUILD_DIR"

CMAKE_CMD="docker run -u $(id -u):$(id -g) -v /etc/passwd:/etc/passwd:ro -v $WORKSPACE:/source -v $BUILD_DIR:/build -a stdout -a stderr $FALCOBUILDER_IMAGE cmake"

FALCO_VERSION=$($CMAKE_CMD | grep -oP "Falco version: v?\K(\d+)\.[a-z0-9]{1,7}(\.[a-z0-9]+)?" || echo "UNKNOWN")

if [ "$FALCO_VERSION" == "UNKNOWN" ]; then
    >&2 echo "Unknown version."
    exit 1
fi

echo "$FALCO_VERSION.$((2700+BUILD_NUMBER))"