bump.sh

#!/bin/bash

# List uncommitted changes and
# check if the output is not empty
if [ -n "$(git status --porcelain)" ]; then
  # Print error message
  printf "\nError: repo has uncommitted changes\n\n"
  # Exit with error code
  exit 1
fi

# List git tags sorted based on semantic versioning
GIT_TAGS=$(git tag --sort=version:refname | grep -v '^v')
 
# Get last line of output which returns the
# last tag (most recent version)
GIT_TAG_LATEST=$(echo "$GIT_TAGS" | tail -n 1)
 
# If no tag found, default to v0.0.0
if [ -z "$GIT_TAG_LATEST" ]; then
  GIT_TAG_LATEST="v0.0.0"
fi
 
# Strip prefix 'v' from the tag to easily increment
GIT_TAG_LATEST=$(echo "$GIT_TAG_LATEST" | sed 's/^v//')

# Get version type from first argument passed to script
VERSION_TYPE="${1-}"
VERSION_NEXT=""
 
if [ "$VERSION_TYPE" = "patch" ]; then
  # Increment patch version
  VERSION_NEXT="$(echo "$GIT_TAG_LATEST" | awk -F. '{$NF++; print $1"."$2"."$NF}')"
elif [ "$VERSION_TYPE" = "minor" ]; then
  # Increment minor version
  VERSION_NEXT="$(echo "$GIT_TAG_LATEST" | awk -F. '{$2++; $3=0; print $1"."$2"."$3}')"
elif [ "$VERSION_TYPE" = "major" ]; then
  # Increment major version
  VERSION_NEXT="$(echo "$GIT_TAG_LATEST" | awk -F. '{$1++; $2=0; $3=0; print $1"."$2"."$3}')"
else
  # Print error for unknown versioning type
  printf "\nError: invalid VERSION_TYPE arg passed, must be 'patch', 'minor' or 'major'\n\n"
  # Exit with error code
  exit 1
fi

FLAG="${2-}"

if [ "$FLAG" = "--dry-run" ]; then
  echo "${VERSION_NEXT}"
  exit 0
else
  # replace version in package.json
  jq --arg version "${VERSION_NEXT}" '.version = $version' package.json > tmp.$$.json && mv tmp.$$.json package.json
  echo "Version bumped (${VERSION_TYPE}) to ${VERSION_NEXT}"

  # pnpm run-script --if-present lint:fix

  git commit -am "chore($VERSION_TYPE): $VERSION_NEXT"
fi

Usage

Git Flow

git flow release start $(bump patch --dry-run)

Update package.json

bump patch