release.sh

release.sh

#!/usr/bin/env bash
set -euo pipefail

if [[ $# -ne 1 ]] || [[ ! "$1" =~ ^(patch|minor|major)$ ]]; then
  echo "Usage: $0 <patch|minor|major>" >&2
  exit 1
fi

BUMP="$1"

LATEST=$(git tag --list 'v*' \
  | grep -E '^v[0-9]+\.[0-9]+\.[0-9]+$' \
  | sort -t. -k1,1V -k2,2n -k3,3n \
  | tail -n1)

if [[ -z "$LATEST" ]]; then
  CURRENT="0.0.0"
else
  CURRENT="${LATEST#v}"
fi

IFS='.' read -r MAJOR MINOR PATCH <<< "$CURRENT"

case "$BUMP" in
  major) MAJOR=$((MAJOR + 1)); MINOR=0; PATCH=0 ;;
  minor) MINOR=$((MINOR + 1)); PATCH=0 ;;
  patch) PATCH=$((PATCH + 1)) ;;
esac

VERSION="v${MAJOR}.${MINOR}.${PATCH}"

printf 'Tag "%s" will be created. (Y/n) ' "$VERSION"
read -r REPLY

if [[ "$REPLY" != "Y" && "$REPLY" != "y" ]]; then
  echo "Aborted." >&2
  exit 1
fi

git tag -a "$VERSION" -m "$VERSION"
git push origin "$VERSION"

echo "Tagged and pushed $VERSION"