#!/bin/bash
#
# Cherry-pick a PR into the release branch
#

set -e
set -o pipefail


function usage() {
    >&2 cat << EOM
Cherry-pick commits from a github pull request.

Usage:

    $0 <github PR number>
EOM
    exit 1
}

[ -n "$1" ] || usage

if [ -z "$(command -v hub 2> /dev/null)" ]; then
    >&2 echo "$0 requires https://hub.github.com/."
    >&2 echo "Please install it and make sure it is available on your \$PATH."
    exit 2
fi


REPO=docker/compose
GITHUB=https://github.com/$REPO/pull
PR=$1
url="$GITHUB/$PR"
hub am -3 $url