photoprism/scripts/download-nasnet.sh
2020-12-04 11:02:19 +01:00

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#!/usr/bin/env bash
TODAY=`date -u +%Y%m%d`
MODEL_NAME="NASNet Mobile"
MODEL_URL="https://dl.photoprism.org/tensorflow/nasnet.zip?$TODAY"
MODEL_PATH="assets/nasnet"
MODEL_ZIP="/tmp/photoprism/nasnet.zip"
MODEL_HASH="f18b801354e95cade497b4f12e8d2537d04c04f6 $MODEL_ZIP"
MODEL_VERSION="$MODEL_PATH/version.txt"
MODEL_BACKUP="storage/backup/nasnet-$TODAY"
echo "Installing $MODEL_NAME model for TensorFlow..."
# Create directories
mkdir -p /tmp/photoprism
mkdir -p storage/backup
# Check for update
if [[ -f ${MODEL_ZIP} ]] && [[ `sha1sum ${MODEL_ZIP}` == ${MODEL_HASH} ]]; then
if [[ -f ${MODEL_VERSION} ]]; then
echo "Already up to date."
exit
fi
else
# Download model
echo "Downloading latest model from $MODEL_URL..."
wget ${MODEL_URL} -O ${MODEL_ZIP}
TMP_HASH=`sha1sum ${MODEL_ZIP}`
echo ${TMP_HASH}
fi
# Create backup
if [[ -e ${MODEL_PATH} ]]; then
echo "Creating backup of existing directory: $MODEL_BACKUP"
rm -rf ${MODEL_BACKUP}
mv ${MODEL_PATH} ${MODEL_BACKUP}
fi
# Unzip model
unzip ${MODEL_ZIP} -d assets
echo "$MODEL_NAME $TODAY $MODEL_HASH" > ${MODEL_VERSION}
echo "Latest $MODEL_NAME installed."