release

#!/bin/bash

FROM_BRANCH=master
TO_BRANCH=dist
ORIGIN_REMOTE=origin

set -eo pipefail

cd "$(dirname $0)"

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

if [ $# -ne 1 ]; then
    echo "Usage: ./release.sh <version-number | major | minor | patch | build | push>"
    exit 1
fi

bump_level=$1; shift

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

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

if [[ $bump_level = "push" ]]; then
    git push --tags $ORIGIN_REMOTE $FROM_BRANCH $TO_BRANCH
    exit
fi

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 $bump_level | 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"

git checkout --quiet -