Bump pyproject.toml version, create release by pushing git tag

pyversion.sh

#!/usr/bin/env bash

set -o errexit
set -o nounset
set -o pipefail

PROJECT_FILE=pyproject.toml

# Usage:
# ./pyversion.sh        # Show current version
# ./pyversion.sh major  # Increase major version
# ./pyversion.sh minor  # Increase minor version
# ./pyversion.sh patch  # Increase patch version
# ./pyversion.sh --release # Create a release for the current version
# ./pyversion.sh --help # Show help
#
# Example:
# ./pyversion.sh major  # 1.0.0 -> 2.0.0
# ./pyversion.sh minor  # 1.0.0 -> 1.1.0
# ./pyversion.sh patch  # 1.0.0 -> 1.0.1
# ./pyversion.sh        # 1.0.0
# 
# https://gist.github.com/pete-otaqui/4188238
# I got this link generated by GitHub copilot. It was not the inspiration
# for this script but got generated when the script was finished. 
# Left a comment as a tribute: 
# https://gist.github.com/pete-otaqui/4188238?permalink_comment_id=4711436#gistcomment-4711436

function create_release {
  current_version=$(grep -oP '^version = "\K[^"]+' pyproject.toml)
  read -p "Do you want to create a release for v$current_version? (y/n) " -n 1 -r
  echo
  # Check that master is checked out
  if [[ $(git rev-parse --abbrev-ref HEAD) != "master" ]]; then
    echo "Error: You must be on master branch"
    exit 1
  fi

  if [[ $REPLY =~ ^[Yy]$ ]]; then
    echo "Creating release v$current_version"
    git add $PROJECT_FILE
    git commit -m "Bump version from $current_version to $current_version"
    git tag -a "v$current_version" -m "v$current_version"
    git push origin "v$current_version"
  fi
}

# Check if the version file exists
if [ ! -f $PROJECT_FILE ]; then
    echo "Error: $PROJECT_FILE not found."
    exit 1
fi

current_version=$(grep -oP '^version = "\K[^"]+' pyproject.toml)
major_version=$(echo "$current_version" | cut -d '.' -f 1)
minor_version=$(echo "$current_version" | cut -d '.' -f 2)
patch_version=$(echo "$current_version" | cut -d '.' -f 3)

latest_tag=$(git describe --tags --abbrev=0 2>/dev/null || true)
current_tagged_version=$(echo "$latest_tag" | cut -d 'v' -f 2)

if [ $# -eq 0 ]; then
  if [ "$current_tagged_version" == "$current_version" ]; then
    echo "$current_version" "(Released)"

  else
    echo "$current_version" "(Not released)"
  fi
  exit 0
fi

case "$1" in
    major)
        major_version=$((major_version + 1))
        minor_version=0
        patch_version=0
        ;;
    minor)
        minor_version=$((minor_version + 1))
        patch_version=0
        ;;
    patch)
        patch_version=$((patch_version + 1))
        ;;
    --help)
      echo "Usage:"
      echo "$0        # Show current version"
      echo "$0 major  # Increase major version"
      echo "$0 minor  # Increase minor version"
      echo "$0 patch  # Increase patch version"
      echo "$0 --release # Create a release for the current version"
      echo ""
      exit 0
      ;;
    --release)
      if [ "$current_tagged_version" == "$current_version" ]; then
        echo "Error: Version $current_version already released"
        exit 1
      fi
      create_release
      exit 0
      ;;
    *)
      echo "Error: Invalid argument"
      help
      exit 1
esac


new_version="$major_version.$minor_version.$patch_version"
sed -i "s/^version = \".*\"/version = \"$new_version\"/" $PROJECT_FILE
echo "Bumped version from $current_version to $new_version"
create_release