release

#!/bin/bash

FROM_BRANCH=master
TO_BRANCH=dist
ORIGIN_REMOTE=origin

set -eo pipefail

cd "$(dirname $0)"

function usage() {
    echo -e "Usage:"
    echo -e "  ./release <action> <version>"
    echo -e "\nArguments:"
    echo -e "  <action>\tbuild, push or publish"
    echo -e "  <version>\tversion passed to mversion"
    echo -e "\nTo release a new version to npm you have to:"
    echo -e "  ./release build v5.0.0\t\tbuilds a new version in dist branch"
    echo -e "  ./release push v5.0.0\t\tpushes repo to github"
    echo -e "  ./release publish v5.0.0\tpublishes version using npm"
    exit 1
}

if [[ -n "$(git status --porcelain)" ]]; then
    echo "Working tree/index must be clean before proceeding"
    exit 1
fi

if [ $# -lt 2 ]; then
  usage
fi

action=$1; shift
given_version=$1; shift

export PATH="./node_modules/.bin:$PATH"

function echoinfo() {
    echo -e "\n$(tput bold)$(tput setaf 7)-- $*$(tput sgr0)\n"
}

if [[ $action = "push" ]]; then
    git push --tags $ORIGIN_REMOTE $FROM_BRANCH $TO_BRANCH
    echoinfo "Remember to publish to npm:\n\n$0 publish"
    exit
fi

if [[ $action = "publish" ]]; then
    if [[ -z $given_version ]]; then
        echo "fatal: make sure you provide a version number: v0.5.0."
        exit 1
    elif ! git ls-remote --exit-code --tags origin $given_version; then
        echo "fatal: make sure you $0 push before publishing."
        exit 1
    fi

    git checkout $TO_BRANCH
    if [[ $given_version == *"beta"* ]]; then
        npm publish . --tag beta
    else
        npm publish .
    fi
    git checkout $FROM_BRANCH
    exit
fi

if [[ $action = "build" ]]; then
  if ! command -v mversion >/dev/null; then
    echo "mversion command not found. Please run 'npm install'."
    exit 1
  fi

  git fetch $ORIGIN_REMOTE

  if git show-ref --verify --quiet refs/remotes/$ORIGIN_REMOTE/$TO_BRANCH; then
    # A dist branch exists on origin
    if ! git show-ref --verify --quiet refs/heads/$TO_BRANCH; then
      # Create it locally if we don't have it
      git branch --track $TO_BRANCH $ORIGIN_REMOTE/$TO_BRANCH
    fi
  else
    # There's no dist branch; set it up for the first time
    git branch $TO_BRANCH $FROM_BRANCH
    git push $ORIGIN_REMOTE $TO_BRANCH:refs/heads/$TO_BRANCH
    git branch --set-upstream-to=$ORIGIN_REMOTE/$TO_BRANCH $TO_BRANCH
  fi

  git checkout $FROM_BRANCH

  [[ -d build ]] && rm -r build

  echoinfo "Current version: $(mversion)"
  echoinfo "Updating version"
  new_version=$(mversion $given_version | awk -F': ' '/^Updated to new version/{print $2}')
  if [[ -z $new_version ]]; then
    echo "fatal: couldn't find new version in output of mversion. It's been updated and broken this script."
    echo 1
  fi

  git add --all :/
  git commit -m "Bumped to $new_version

  [ci skip]"

  echoinfo "Switching to dist branch and merging"

  git checkout $TO_BRANCH
  git reset --hard refs/remotes/$ORIGIN_REMOTE/$TO_BRANCH

  git merge --no-commit $FROM_BRANCH
  echoinfo "Building distribution files"
  npm run dist

  mv -f build/* .
  rm -r build/

  git add --all :/
  git commit -m "Added distribution files for $new_version

  [ci skip]"
  git tag -a "$new_version" -m "Tagged ${new_version}"

  echoinfo "Check the commit worked and then push:\n\n$0 push $new_version"

  git checkout --quiet -
  exit
fi

usage