bash script to automatically create a git / git flow release, bump npm version, build module, commit, publish module to npm

module-releaser.sh

#!/bin/bash

autoFinishGitFlow=1
autoBuild=1
autoPublish=1
autoCreateGitFlowRelease=1
autoCommit=1
release="patch"

function getVersions {
    PACKAGE_VERSION=$(node -p -e "require('./package.json').version")
    if [ -z "${preid}" ]; then
        NEXT_PACKAGE_VERSION=$(semver -i ${release} $PACKAGE_VERSION)
    else
        NEXT_PACKAGE_VERSION=$(semver -i ${release} --preid ${preid} $PACKAGE_VERSION)
    fi
    echo "** Current version : ${PACKAGE_VERSION}"
    echo "** Next version : ${NEXT_PACKAGE_VERSION}"
}

function bump {
    echo "** Bumping version using npm to ${NEXT_PACKAGE_VERSION}"
    output=$(npm version ${NEXT_PACKAGE_VERSION} --no-git-tag-version)
    echo "** NPM Version : ${output}"

}

function help {
    echo "Usage: $(basename $0) -r [<newversion> | major | minor | patch | premajor | preminor | prepatch ] -p <prerelease>"
    echo "-a: disable auto finish release"
    echo "-b: disable npm run build"
    echo "-p: disable npm publish"
    echo "-f: without git flow"
    echo "-c: disable commit"
}

while getopts ":r:p:abp" opt; do
  case $opt in
    r)
      echo "** -r was triggered!, Parameter: $OPTARG" >&2
      release=$OPTARG
      ;;
    p)
      echo "** -p was triggered!, Parameter: $OPTARG" >&2
      preid=$OPTARG
      ;;
    a)
      echo "** -a was triggered!, Parameter: $OPTARG" >&2
      autoFinishGitFlow=0
      ;;
    b)
      echo "** -b was triggered!, Parameter: $OPTARG" >&2
      autoBuild=0
      ;;
    p)
      echo "** -p was triggered!, Parameter: $OPTARG" >&2
      autoPublish=0
      ;;
    f)
      echo "** -f was triggered!, Parameter: $OPTARG" >&2
      autoCreateGitFlowRelease=0
      ;;
    c)
      echo "** -c was triggered!, Parameter: $OPTARG" >&2
      autoCommit=0
      ;;
    \?)
      echo "** Invalid option: -$OPTARG" >&2
      ;;
    :)
      echo "** Option -$OPTARG requires an argument." >&2
      exit 1
      ;;
  esac
done

getVersions

if [ -z "$release" ]; then
    help
    exit
fi

if [ -d ".git" ]; then
    changes=$(git status --porcelain)

    if [ -z "${changes}" ]; then
        echo "** Starting release ${NEXT_PACKAGE_VERSION}"

        if (( autoCreateGitFlowRelease==1 )) ; then
            echo '** Git Flow Release'
            git flow release start ${NEXT_PACKAGE_VERSION}
        fi

        if (( autoBuild==1 )) ; then
            echo '** Build Release'
            npm run build
            rc=$?; if [[ $rc != 0 ]]; then exit $rc; fi
        fi

        bump

        if (( autoCommit==1 )) ; then
            echo "** Adding all files to git."
            git add .
            echo "** GIT Status."
            git status
            echo "** Commit files to git."
            git commit -m "Bump to ${NEXT_PACKAGE_VERSION}"
        fi

        if (( autoFinishGitFlow==1 && autoCreateGitFlowRelease==1 )) ; then
            echo "** Finish release ${NEXT_PACKAGE_VERSION}."
            git flow release finish ${NEXT_PACKAGE_VERSION} -m "Release ${NEXT_PACKAGE_VERSION}"
        fi

        if (( autoPublish==1 )) ; then
            echo '** Publishing Release'
            npm publish
        fi
    else
        echo "** Please commit staged files prior to bumping"
    fi
else
    bump
fi