generate_version

version_number=$1
if [ -z "${version_number}" ]
then
 version_number=`git describe --tags $(git rev-list --tags --max-count=1)`
fi

# Separate version core from pre-release data (e.g. "1.2.3-beta" -> "1.2.3" and "beta")
IFS='-' read -a components <<< "${version_number}"

# Separate components of the version core (e.g. "1.2.3" -> "1", "2", "3")
IFS='.' read -a version_components <<< "${components[0]}"

# Extract version components to variables
prerelease_components=${components[1]}
major=${version_components[0]}
minor=${version_components[1]}
patch=${version_components[2]}

# Set the string for pre-release identifier if needed
if [ -z "${prerelease_components}" ] 
then
 prereleaseIdentifier="nil"
else
 prereleaseIdentifier=\"${prerelease_components}\"
fi

# Generate Swift file containing version information
version_file=Sources/InstantSearchCore/Helper/Version+Current.swift 
> $version_file
echo "// This is generated file. Don't modify it manually." >> $version_file
echo "public extension Version { static let current: Version = .init(major: $major, minor: $minor, patch: $patch, prereleaseIdentifier: $prereleaseIdentifier) }" >> $version_file