Release binaries to github using hub

release-binaries.sh

#!/bin/bash

set -e -o pipefail -u

if [ "$#" -lt 1 ]; then
  echo "Attaches files to the latest tag in github" 1>&2
  echo "Usage: $0 [files...]" 1>&2
  exit 1
fi

last_pr="$(git rev-list --min-parents=2 --max-count=1 HEAD)"
previous_pr="$(git rev-list --min-parents=2 --max-count=2 HEAD | sed -n '2p')"
last_tag="$(git describe --abbrev=0 --tags )"


pr_title="$(git show --pretty=format:%B "${last_pr}" | sed -n '3p')"
release_body="$(
  git log ${previous_pr}..HEAD --pretty=format:' - %h %s' | grep -v 'chore:' | grep -v "Merge pull request"
)"

tmpfile="$(mktemp)"
trap 'rm -f ${tmpfile:-foo}' EXIT
cat > "${tmpfile}" <<EOF
${pr_title}

${release_body}
EOF

args=""
for i in $@; do
  args="$args -a $i"
done

if hub release | grep -q "^${last_tag}\$"; then
  hub release delete "${last_tag}"
fi
hub release create -F "${tmpfile}" ${args} "${last_tag}"