#! /usr/bin/bash

set -euo pipefail
IFS=$'\n\t'

REPO_ROOT_FILE="$(systemd-path user-state-private)"/repo-roots/repo-roots

list_repos () {
    repo_root=$1

    find "${repo_root}" -maxdepth 2 -name .git -type d -exec dirname {} \;
}

sync_repo () {
    repo=$1

    echo git-sync "${repo}"
    ( cd "${repo}" && "$(systemd-path user-state-private)"/git-sync/git-sync sync ) || true
    echo
}

case "${1:-sync}" in
    "list")
        while read -r repo_root; do
            list_repos "${repo_root}"
        done < "${REPO_ROOT_FILE}"
        ;;
    "sync")
        while read -r repo_root; do
            for repo in $(list_repos "${repo_root}"); do
                sync_repo "${repo}"
            done
        done < "${REPO_ROOT_FILE}"
        ;;
    *)
        echo Unknown option \""$1"\"
        exit 1
        ;;
esac