A quick bash script to display the latest release and release candidate from a git repo (based on semver tagging)

git-version-tag.sh

#!/usr/bin/env bash

# Parses semantic tags from Git and displays the most recent release and the
# most recent release candidate

# Get up to date with origin
git fetch origin &> /dev/null

# Find the latest release tag and the latest RC tag
release=$(git tag --sort=v:refname | grep "^\\d\{1,4\}\.\\d\{1,4\}\.\\d\{1,4\}\$" | tail -1)
candidate=$(git tag --sort=v:refname | grep "^\\d\{1,4\}\.\\d\{1,4\}\.\\d\{1,4\}\-rc" | tail -1)

# Error if no versions were found
if [ -z "$release$candidate" ]
then
    echo -e "\033[91mNo versions exist in this repository!"
    exit 1
fi

# Display the latest versions
echo -e "\033[36m\033[1m* Release:\033[0m   ${release}"
echo -e "\033[36m\033[1m* Candidate:\033[0m ${candidate}"