#!/usr/local/bin/bash
# Usage: `mirror-to-github $github_auth`
#
# Mirrors the entire repository with GitHub. Authentication happens using `$github_auth`, which has the form
# `https://<username>:<token>@github.com/<username>/<repository>.git`.

repo_url="$(pwd)"
repo_name="$(basename -s .git "$repo_url")"
dst_url="$1"
tmp_dir="$HOME/tmp/git/$repo_name-$(date +%s)"

echo "[[ Deploy ]]  mirror-to-github($repo_name)"
echo "[[ Deploy ]]  src: '$repo_url'"
echo "[[ Deploy ]]  dst: '[redacted]'"
echo "[[ Deploy ]]  tmp: '$tmp_dir'"


if test -e "$tmp_dir"; then
    echo "[[ Deploy ]]  Directory '$tmp_dir' already exists, stopping deployment."
    exit
fi


echo "[[ Deploy ]]  Bare cloning repository at '$repo_url' into '$tmp_dir'."
git clone --bare "$repo_url" "$tmp_dir"

echo "[[ Deploy ]]  Mirroring repo at '$tmp_dir' into '$dst_url'."
cd "$tmp_dir" || exit
git push --mirror "$dst_url"

echo "[[ Deploy ]]  Deleting '$tmp_dir'."
rm -rf "$tmp_dir"