#!/usr/bin/env bash

# BSD 3-Clause License
#
# Copyright (c) 2013, Jyun-Yan You
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
#   list of conditions and the following disclaimer.
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#   this list of conditions and the following disclaimer in the documentation
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#   this software without specific prior written permission.
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# Original from rust-bindgen repository, commit SHA c8e237f54370bdc1777df2c5d08eccf7ec5c33fc

set -eu
set -o pipefail

cd "$(dirname "${0}")"

if [[ -z "${1+x}" ]]; then
    read -r -p "List friends since which commit/tag? " since
    echo
else
    since=$1
fi

git shortlog -s -n "${since}.." \
    | cut -f 2- \
    | sort \
        --ignore-case \
        --dictionary-order \
        --stable \
        --ignore-leading-blanks \
        --unique \
    | xargs -I{} echo "- {}"