| #!/usr/bin/env bash |
| set -euo pipefail |
|
|
| ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)" |
| ARCHIVE_DIR="${ROOT_DIR}/data" |
| DATA_ROOT="${1:-${ROOT_DIR}/data}" |
|
|
| mkdir -p "${DATA_ROOT}" |
|
|
| declare -A selected_archives=() |
| declare -A selected_archive_parts=() |
|
|
| while IFS= read -r archive; do |
| filename="$(basename "${archive}")" |
| base="${filename}" |
| if [[ "${filename}" == *.tar.zst.part-* ]]; then |
| base="${filename%%.part-*}.tar.zst" |
| selected_archive_parts["${base}"]+="${archive}"$'\n' |
| continue |
| elif [[ "${filename}" == *.tar.part-* ]]; then |
| base="${filename%%.part-*}.tar" |
| selected_archive_parts["${base}"]+="${archive}"$'\n' |
| continue |
| elif [[ "${filename}" == *.tar.zst ]]; then |
| base="${filename%.tar.zst}" |
| elif [[ "${filename}" == *.tar ]]; then |
| base="${filename%.tar}" |
| else |
| continue |
| fi |
|
|
| if [[ -n "${selected_archives[${base}]:-}" ]]; then |
| echo "found multiple archive variants for ${base} under ${ARCHIVE_DIR}; keep only one of .tar or .tar.zst" >&2 |
| exit 1 |
| fi |
| selected_archives["${base}"]="${archive}" |
| done < <(find "${ARCHIVE_DIR}" -maxdepth 1 \( -type f -o -type l \) \( -name '*.tar' -o -name '*.tar.zst' \) | sort) |
|
|
| while IFS= read -r archive; do |
| filename="$(basename "${archive}")" |
| if [[ "${filename}" == *.tar.zst.part-* ]]; then |
| base="${filename%%.part-*}.tar.zst" |
| selected_archive_parts["${base}"]+="${archive}"$'\n' |
| elif [[ "${filename}" == *.tar.part-* ]]; then |
| base="${filename%%.part-*}.tar" |
| selected_archive_parts["${base}"]+="${archive}"$'\n' |
| fi |
| done < <(find "${ARCHIVE_DIR}" -maxdepth 1 \( -type f -o -type l \) \( -name '*.tar.zst.part-*' -o -name '*.tar.part-*' \) | sort) |
|
|
| if [[ "${#selected_archives[@]}" -eq 0 && "${#selected_archive_parts[@]}" -eq 0 ]]; then |
| echo "no archives found under ${ARCHIVE_DIR}" >&2 |
| exit 1 |
| fi |
|
|
| mapfile -t archive_bases < <( |
| { |
| printf '%s\n' "${!selected_archives[@]}" |
| printf '%s\n' "${!selected_archive_parts[@]}" |
| } | awk 'NF' | sort -u |
| ) |
| for base in "${archive_bases[@]}"; do |
| archive="${selected_archives[${base}]:-}" |
| parts_blob="${selected_archive_parts[${base}]:-}" |
| if [[ -n "${archive}" && -n "${parts_blob}" ]]; then |
| echo "found both full archive and split parts for ${base} under ${ARCHIVE_DIR}; keep only one form" >&2 |
| exit 1 |
| fi |
| if [[ -n "${archive}" ]]; then |
| echo "extracting ${archive}" |
| case "${archive}" in |
| *.tar.zst) |
| tar --zstd -xf "${archive}" -C "${DATA_ROOT}" |
| ;; |
| *.tar) |
| tar -xf "${archive}" -C "${DATA_ROOT}" |
| ;; |
| *) |
| echo "unsupported archive format: ${archive}" >&2 |
| exit 1 |
| ;; |
| esac |
| continue |
| fi |
|
|
| if [[ -z "${parts_blob}" ]]; then |
| echo "missing archive content for ${base}" >&2 |
| exit 1 |
| fi |
| mapfile -t parts < <(printf '%s' "${parts_blob}" | awk 'NF' | sort) |
| echo "extracting ${base} from ${#parts[@]} parts" |
| case "${base}" in |
| *.tar.zst) |
| cat "${parts[@]}" | tar --zstd -xf - -C "${DATA_ROOT}" |
| ;; |
| *.tar) |
| cat "${parts[@]}" | tar -xf - -C "${DATA_ROOT}" |
| ;; |
| *) |
| echo "unsupported split archive format: ${base}" >&2 |
| exit 1 |
| ;; |
| esac |
| done |
|
|
| echo "raw data extracted into ${DATA_ROOT}" |
|
|
