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photoprism/scripts/download-scrfd.sh
Michael Mayer ab60112f99 AI: Update download-scrfd.sh script #5167
Signed-off-by: Michael Mayer <michael@photoprism.app>
2025-10-07 22:16:19 +02:00

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#!/usr/bin/env bash
set -euo pipefail
TODAY=$(date -u +%Y%m%d)
MODEL_SOURCE="scrfd_500m_bnkps_shape640x640.onnx"
LOCAL_MODEL_NAME="scrfd.onnx"
PRIMARY_URL="https://dl.photoprism.app/onnx/models/${MODEL_SOURCE}?${TODAY}"
FALLBACK_URL="https://raw.githubusercontent.com/laolaolulu/FaceTrain/master/model/scrfd/${MODEL_SOURCE}"
MODEL_URL=${MODEL_URL:-"${PRIMARY_URL}"}
MODELS_PATH="assets/models"
MODEL_DIR="$MODELS_PATH/scrfd"
LEGACY_MODEL_DIR="$MODELS_PATH/scrfs"
MODEL_FILE="$MODEL_DIR/${LOCAL_MODEL_NAME}"
MODEL_TMP="/tmp/photoprism/${MODEL_SOURCE}"
MODEL_HASH="ae72185653e279aa2056b288662a19ec3519ced5426d2adeffbe058a86369a24 ${MODEL_TMP}"
MODEL_VERSION="$MODEL_DIR/version.txt"
MODEL_BACKUP="storage/backup/scrfd-${TODAY}"
mkdir -p /tmp/photoprism
mkdir -p storage/backup
if [[ -d "${LEGACY_MODEL_DIR}" && ! -d "${MODEL_DIR}" ]]; then
echo "Migrating legacy SCRFD directory from ${LEGACY_MODEL_DIR} to ${MODEL_DIR}."
mv "${LEGACY_MODEL_DIR}" "${MODEL_DIR}"
fi
mkdir -p "${MODEL_DIR}"
hash_file() {
if command -v sha256sum >/dev/null 2>&1; then
sha256sum "$1" | awk '{print $1}'
else
shasum -a 256 "$1" | awk '{print $1}'
fi
}
verify_hash() {
local expected="$1"
local file="$2"
if command -v sha256sum >/dev/null 2>&1; then
echo "${expected} ${file}" | sha256sum -c - >/dev/null
else
echo "${expected} ${file}" | shasum -a 256 -c - >/dev/null
fi
}
if [[ -f "${MODEL_FILE}" ]]; then
CURRENT_HASH=$(hash_file "${MODEL_FILE}")
if [[ "${CURRENT_HASH}" == "${MODEL_HASH%% *}" ]]; then
echo "SCRFD model already up to date."
exit 0
fi
fi
echo "Downloading SCRFD detector from ${MODEL_URL}..."
if ! curl -fsSL --retry 3 --retry-delay 2 -o "${MODEL_TMP}" "${MODEL_URL}"; then
if [[ "${MODEL_URL}" != "${FALLBACK_URL}" ]]; then
echo "Primary download failed, trying fallback..."
MODEL_URL="${FALLBACK_URL}"
MODEL_HASH="ae72185653e279aa2056b288662a19ec3519ced5426d2adeffbe058a86369a24 ${MODEL_TMP}"
if ! curl -fsSL --retry 3 --retry-delay 2 -o "${MODEL_TMP}" "${MODEL_URL}"; then
echo "Failed to download SCRFD detector." >&2
exit 1
fi
else
echo "Failed to download SCRFD detector." >&2
exit 1
fi
fi
echo "Verifying checksum..."
verify_hash "${MODEL_HASH%% *}" "${MODEL_TMP}"
if [[ -f "${MODEL_FILE}" ]]; then
echo "Creating backup of existing detector at ${MODEL_BACKUP}"
rm -rf "${MODEL_BACKUP}"
mkdir -p "${MODEL_BACKUP}"
mv "${MODEL_FILE}" "${MODEL_BACKUP}/"
if [[ -f "${MODEL_VERSION}" ]]; then
cp "${MODEL_VERSION}" "${MODEL_BACKUP}/"
fi
fi
mv "${MODEL_TMP}" "${MODEL_FILE}"
echo "SCRFD ${TODAY} ${MODEL_HASH%% *} (${MODEL_SOURCE})" > "${MODEL_VERSION}"
echo "SCRFD detector installed in ${MODEL_DIR}."