File size: 4,832 Bytes
44a7ed3 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 | #!/usr/bin/env bash
set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
# Workspace root containing train/ and test/ outputs; override via MVEB_ROOT.
ROOT_DIR="${MVEB_ROOT:-$(cd "${SCRIPT_DIR}/../../.." && pwd)}"
GDRIVE_FOLDER_ID="18EunmjOJsbE5Lh9zA0cZ4wKV6Um46dkg"
GDRIVE_URL="https://drive.google.com/drive/folders/${GDRIVE_FOLDER_ID}"
DOWNLOAD_DIR="${ROOT_DIR}/downloads/compcars"
EXTRACT_DIR="${ROOT_DIR}/source/compcars"
PASSWORD="d89551fd190e38"
need_cmd() {
command -v "$1" >/dev/null 2>&1 || {
echo "Missing command: $1" >&2
exit 1
}
}
need_cmd gdown
need_cmd zip
need_cmd unzip
need_cmd python3
mkdir -p "${DOWNLOAD_DIR}" "${EXTRACT_DIR}"
download_from_gdrive() {
echo "==> Downloading files from Google Drive folder: ${GDRIVE_URL}"
echo " Save to: ${DOWNLOAD_DIR}"
# --remaining-ok: skip files that already exist (resume-friendly).
gdown --folder "${GDRIVE_URL}" -O "${DOWNLOAD_DIR}" --remaining-ok
}
check_split_parts() {
local prefix="$1"
local zipfile="${DOWNLOAD_DIR}/${prefix}.zip"
if [[ ! -f "${zipfile}" ]]; then
echo "[warn] ${prefix}.zip not found under ${DOWNLOAD_DIR}"
return 1
fi
local missing=0
local part
for part in "${DOWNLOAD_DIR}/${prefix}".z*; do
[[ -e "${part}" ]] || continue
:
done
# data.z01 - data.z22
if [[ "${prefix}" == "data" ]]; then
local i
for i in $(seq -w 1 22); do
if [[ ! -f "${DOWNLOAD_DIR}/${prefix}.z${i}" ]]; then
echo "[warn] missing ${prefix}.z${i}"
missing=1
fi
done
fi
if [[ "${missing}" -eq 1 ]]; then
echo "[warn] split archive for ${prefix} is incomplete; zip -F may still work if only a few parts are absent."
fi
return 0
}
check_truncated_parts() {
# gdown --remaining-ok skips any existing file without size checks, so a
# part truncated by a broken run would silently survive re-runs. Split
# volumes (.zNN) are all cut at the same size, so any part smaller than
# the largest one is truncated and must be deleted before re-running.
local prefix="$1"
local max_size=0 size part
local bad_parts=()
for part in "${DOWNLOAD_DIR}/${prefix}".z[0-9]*; do
[[ -f "${part}" ]] || continue
size=$(stat -c %s "${part}")
if (( size > max_size )); then
max_size=${size}
fi
done
for part in "${DOWNLOAD_DIR}/${prefix}".z[0-9]*; do
[[ -f "${part}" ]] || continue
size=$(stat -c %s "${part}")
if (( size < max_size )); then
bad_parts+=("${part} (${size} < ${max_size} bytes)")
fi
done
if [[ -f "${DOWNLOAD_DIR}/${prefix}.zip" ]] && [[ ! -s "${DOWNLOAD_DIR}/${prefix}.zip" ]]; then
bad_parts+=("${DOWNLOAD_DIR}/${prefix}.zip (0 bytes)")
fi
if [[ ${#bad_parts[@]} -gt 0 ]]; then
echo "[error] Truncated download detected (likely an interrupted gdown run):" >&2
printf ' %s\n' "${bad_parts[@]}" >&2
echo "Delete the file(s) above and re-run this script to re-download them." >&2
exit 1
fi
}
extract_split_archive() {
local prefix="$1"
local out_dir="$2"
local zipfile="${DOWNLOAD_DIR}/${prefix}.zip"
local combined="${DOWNLOAD_DIR}/combined_${prefix}.zip"
local marker="${out_dir}/.extracted"
if [[ -f "${marker}" ]]; then
echo "==> Skip ${prefix}: already extracted (${marker})"
return 0
fi
if [[ ! -f "${zipfile}" ]]; then
echo "==> Skip ${prefix}: ${zipfile} not found"
return 0
fi
check_split_parts "${prefix}" || true
check_truncated_parts "${prefix}"
echo "==> Combining ${prefix}.zip + ${prefix}.z* -> $(basename "${combined}")"
(
cd "${DOWNLOAD_DIR}"
zip -F "${prefix}.zip" --out "$(basename "${combined}")"
)
echo "==> Extracting ${combined} -> ${out_dir}"
mkdir -p "${out_dir}"
unzip -o -P "${PASSWORD}" "${combined}" -d "${out_dir}"
touch "${marker}"
echo "==> Done: ${out_dir}"
}
main() {
download_from_gdrive
extract_split_archive "data" "${EXTRACT_DIR}/data"
if [[ -f "${DOWNLOAD_DIR}/README.txt" ]]; then
cp -f "${DOWNLOAD_DIR}/README.txt" "${ROOT_DIR}/README.txt"
echo "==> Copied README.txt to ${ROOT_DIR}/README.txt"
fi
echo "==> Pack CompCars to parquet"
python3 "${SCRIPT_DIR}/process_compcars.py" --overwrite \
--image-root "${EXTRACT_DIR}/data/image" \
--output-root "${ROOT_DIR}"
echo "==> All done."
echo " downloads: ${DOWNLOAD_DIR}"
echo " extracted: ${EXTRACT_DIR}"
echo " output: ${MVEB_TRAIN_DIR:-${ROOT_DIR}/MVEB-train}/CompCars , ${MVEB_TEST_DIR:-${ROOT_DIR}/MVEB-test}/CompCars"
}
main "$@"
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