git-clone-all

#!/bin/bash

# SPDX-FileCopyrightText: 2024 sudorook <daemon@nullcodon.com>
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <https://www.gnu.org/licenses/>.

set -euo pipefail

ROOT="$(dirname "${0}")"

source "${ROOT}"/globals

! check_command curl git jq && exit

function clone_codeberg() {
  local acct="${1}"
  local line
  local mode=users
  local data
  # Codeberg disables HEAD requests, so download all the account data and store
  # in a variable for parsing later.
  if ! data=$(curl -fs https://codeberg.org/api/v1/"${mode}/${acct}"/repos); then
    return 1
  fi
  while read -r line; do
    if ! [ -d "${line}" ]; then
      git clone "${line}.git"
    fi
  done < <(jq -r '.[]["html_url"]' <<< "${data}")
}

function clone_github() {
  local acct="${1}"
  local line
  local mode
  if curl -Ifs https://api.github.com/orgs/"${acct}"/repos > /dev/null; then
    mode=orgs
  elif curl -Ifs https://api.github.com/users/"${acct}"/repos > /dev/null; then
    mode=users
  else
    return 1
  fi
  while read -r line; do
    if ! [ -d "${line}" ]; then
      git clone "${line}.git"
    fi
  done < <(curl -s https://api.github.com/"${mode}/${acct}"/repos?per_page=100 | jq -r '.[]["html_url"]')
}

function parse_input() {
  DOMAIN="${IN//http*\:\/\//}"
  DOMAIN="${DOMAIN#www\.}"
  DOMAIN="${DOMAIN/\/*/}"
  DOMAIN="${DOMAIN%.*}"
  ACCOUNT="${IN##*/}"
}

function search_domains {
  local domains=(github codeberg)
  local domain
  for domain in "${domains[@]}"; do
    case "${domain}" in
      github)
        if curl -ILs https://github.com/"${ACCOUNT}" > /dev/null; then
          DOMAIN=github
          return
        fi
        ;;
      codeberg)
        if curl -ILs https://codeberg.org/"${ACCOUNT}"/repos > /dev/null; then
          DOMAIN=codeberg
          return
        fi
        ;;
      *) ;;
    esac
  done
}

IN="${1}"
DOMAIN=
ACCOUNT=

parse_input
if [[ -n "${ACCOUNT}" ]] && [[ "${DOMAIN}" = "${ACCOUNT}" ]]; then
  search_domains
fi

mkdir -p "${ACCOUNT}"
pushd "${ACCOUNT}" > /dev/null

case "${DOMAIN}" in
  github)
    clone_github "${ACCOUNT}"
    ;;
  codeberg)
    clone_codeberg "${ACCOUNT}"
    ;;
  *)
    show_error "${ACCOUNT@Q} on domain ${DOMAIN@Q} not supported. Exiting."
    exit 3
    ;;
esac

popd > /dev/null