Release with gh instead of with hub (#2056)

# - checks out the master branch

# - changes version in `bin/ruby-build` to current date

# - commits and tags the change

# - pushes master + tag to GitHub

# - opens pull request to update the Homebrew formula

# - pushes master & the new tag to GitHub

# - creates a new Release on GitHub

# - [automated] a GitHub Action will create a Homebrew PR for the new release

#

# TODO: handle making multiple releases on the same date

set -e

echo "Running hub to see if configured correctly"

echo "This shows the latest release:"

hub release -L1

git fetch -q --tags origin master

git checkout -q master

git merge --ff-only @{upstream}

git merge --ff-only '@{upstream}'

existing="$(git tag --points-at HEAD)"

if [ -n "$existing" ]; then

git commit -m "ruby-build ${new_version}" -- "$binfile"

notes_file="$(mktemp)"

{ echo "ruby-build $new_version"

  echo

  git log --no-merges --format='* %s%n%w(0,2,2)%+b' --reverse "${previous_tag}..HEAD^" -- bin share

} >"$notes_file"

trap "rm -f '$notes_file'" EXIT

git tag "$version_tag" -F "$notes_file" --edit

git tag "$version_tag"

git push origin master "${version_tag}"

git tag --list "$version_tag" --format='%(contents:subject)%0a%0a%(contents:body)' | \

  hub release create -F- "$version_tag"

gh release create "$version_tag" --title "ruby-build ${new_version}" --generate-notes