#!/usr/bin/bash

ORIGDIR=$(pwd)
ANNEXFLAG=auto
GCFLAG=false
IDENTFLAG=false

while getopts "haAlgi" opt ;
do
    case "$opt" in
        h)
            cat <<EOF >&2
$0 [ -h | -a | -A | -l | -g | -i ]*

-h	Show Help
-a	Always sync annex
-A	Do not sync annex
-l	List Repositories
-g	Run GC
-i	Use an identity
EOF
            exit 1
            ;;
        a)
            ANNEXFLAG=true
            ;;
        A)
            ANNEXFLAG=false
            ;;
        l)
            find . -type d -name '*.git'
            exit
            ;;
        g)
            GCFLAG=true
            ;;
        i)
            IDENTFLAG=true
            ;;
    esac
done

if [[ ${IDENTFLAG} == "true" ]] ;
then
 ssh-add id_backup_drive
fi

find . -type d -name '*.git' | \
while read -r repository
do
    cd "${repository}"
    echo "In $(echo "${repository}" | sed -e 's/^\.\///g' -e 's/\.git$//g'):"

    git fetch
    
    if [[ ${ANNEXFLAG} == "auto" ]] ;
    then
        if [[ -d "annex" ]] ;
        then
            echo Detected Git Annex
            git annex sync
            echo Annex Sync Complete
        else
            echo No Annex Sync
        fi
    elif [[ ${ANNEXFLAG} == "true" ]] ;
    then
        echo Forcing Git Annex
        git annex sync
        echo Annex Sync Complete
    else
        echo No Annex Sync
    fi

    if [[ ${GCFLAG} == "true" ]] ;
    then
        echo Performing GC/FSCK
        git gc --aggressive
        git fsck
        echo GC/FSCK Complete
    else
        echo No GC/FSCK
    fi

    cd "${ORIGDIR}"
    echo
done

if [[ ${IDENTFLAG} == "true" ]] ;
then
    ssh-add -d id_backup_drive
fi