#!/bin/bash

# Git repository
REPO="https://git.postgresql.org/git/postgresql.git"

# Get tag name using 'git ls-remote'
TAG_NAME=$(git ls-remote --exit-code --refs --tags --sort='v:refname' "$REPO" | cut -d'/' -f3 | grep '^REL' | grep -v 'BETA\|RC' | tail -1)

# Trim prefix
VERSION=${TAG_NAME//REL_/}

# Replace '_' with '.'
VERSION=${VERSION//_/.}

echo "$VERSION"