backup-github

backup-github.sh

#!/usr/bin/env bash

function usage () {
    echo "backup-github.sh

A tiny bash script to backup own and starred public github repositories

Usage:
    backup-github.sh GITHUB_USERNAME DIRECTORY_TO_BACKUP_TO"
    exit 1
}

if [ -z ${1} ] || [ -z ${2} ]; then
    usage
fi

if [ '--help' == '${1}' ] || [ '-h' == '${1}' ]; then
    usage
fi

GHUSER="${1}"
BASE="${2}"

if [ ! -d "${BASE}" ]; then
    echo "missing basedir ${BASE}" 2>&1 | logger -s -t 'backup-github'
    exit 1;
fi

declare -A repositories
repositories["_github_starred"]=$(wget -O- -q "https://api.github.com/users/${GHUSER}/starred?page=1&per_page=100" | json_pp | grep 'html_url.*github\.com\/.*\/' | sed -r 's/[^:]+:\s"([^"]+)".*/\1/g')
repositories["_github_own"]=$(wget -O- -q "https://api.github.com/users/${GHUSER}/repos?page=1&per_page=100" | json_pp | grep 'html_url.*github\.com\/.*\/' | sed -r 's/[^:]+:\s"([^"]+)".*/\1/g')


for key in "${!repositories[@]}"; do
        SUB="${BASE}/${key}"
        echo "working dir: ${SUB}"
        if [ ! -d ${SUB} ]; then
                mkdir ${SUB}
        fi

        while read repo; do
            rname=$(basename "$repo")
            tdir="${SUB}/${rname}"
            if [ ! -d "${tdir}" ]; then
                echo "cloning ${repo} to ${tdir}" 2>&1 | logger -s -t 'backup-github'
                git clone "${repo}" "${tdir}" 2>&1 | logger -s -t 'backup-github'
                cd "${tdir}"
            else
                echo "fetching ${repo}" 2>&1 | logger -s -t 'backup-github'
                cd "${tdir}"
                git fetch --all 2>&1 | logger -s -t 'backup-github'
            fi
            git submodule update --init --recursive 2>&1 | logger -s -t 'backup-github'
            git prune 2>&1 | logger -s -t 'backup-github'
        done <<< ${repositories[$key]}
done