130 lines
3.7 KiB
Bash
130 lines
3.7 KiB
Bash
#!/bin/bash
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########### SUDO COMMANDS WITHOUT PASSWORD #############################################
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#
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# Specific commands must be executable without sudo
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#
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# Add to sudoers file (sudo visudo):
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#
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# Disable password for specific commands
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# pi ALL=(ALL:ALL) NOPASSWD: /usr/bin/chmod -R 755 /data/public/capserver/images
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# pi ALL=(ALL:ALL) NOPASSWD: /usr/bin/mv /home/pi/classifier.mlmodel /data/public/capserver/
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# pi ALL=(ALL:ALL) NOPASSWD: /usr/bin/mv /home/pi/classifier.version /data/public/capserver/
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# pi ALL=(ALL:ALL) NOPASSWD: /usr/bin/chown -R www-data\:www-data /data/public/capserver/
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#
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########################################################################################
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########### EXPLANATION OF RSYNC FLAGS #################################################
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#
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# -h human readable output
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# -v verbose output
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# -r recursive
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# -P print information about long-running transfers, keep partial files (—-progress --partial)
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# -t preserves modification times
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# -u only update if newer
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#
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########################################################################################
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########### PATHS ######################################################################
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WORK_DIR="~/Projects/CapCollectorServer/Training"
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BACKUP_DIR="${WORK_DIR}/backup"
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IMAGE_DIR="${WORK_DIR}/images"
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VERSION_FILE="${WORK_DIR}/classifier.version"
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MODEL_FILE="${WORK_DIR}/classifier.mlmodel"
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TRAINING_ITERATIONS="17"
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SSH_PORT="5432"
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SERVER="pi@pi4"
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SERVER_ROOT_PATH="/data/public/capserver"
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########################################################################################
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echo "[INFO] Working in directory ${WORK_DIR}"
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cd ${WORK_DIR}
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echo "[INFO] Getting classifier version from server..."
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scp -P $SSH_PORT ${SERVER}:/${SERVER_ROOT_PATH}/classifier.version $WORK_DIR
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retVal=$?
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if [ $retVal -ne 0 ]; then
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echo '[ERROR] Failed to get classifier version'
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return $retVal
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fi
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# Read classifier version from file
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OLD_VERSION=$(< $VERSION_FILE)
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NEW_VERSION=$(($OLD_VERSION + 1))
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echo "[INFO] Creating classifier version ${NEW_VERSION}"
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echo "[INFO] Ensuring permissions for images on server..."
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ssh -p $SSH_PORT ${SERVER} "sudo chmod -R 755 ${SERVER_ROOT_PATH}/images"
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retVal=$?
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if [ $retVal -ne 0 ]; then
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echo '[ERROR] Failed to change image permissions'
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return $retVal
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fi
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echo "[INFO] Transferring images from server..."
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rsync -hvrPut -e "ssh -p ${SSH_PORT}" ${SERVER}:/${SERVER_ROOT_PATH}/images/ "${IMAGE_DIR}"
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retVal=$?
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if [ $retVal -ne 0 ]; then
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echo '[ERROR] Failed to transfer images from server'
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return $retVal
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fi
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echo "[INFO] Training the model..."
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swift train.swift $IMAGE_DIR $TRAINING_ITERATIONS $MODEL_FILE
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retVal=$?
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if [ $retVal -ne 0 ]; then
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echo '[ERROR] Failed to train model'
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return $retVal
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fi
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echo "[INFO] Incrementing version file..."
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echo "${NEW_VERSION}" > $VERSION_FILE
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echo "[INFO] Copying the files to the server..."
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scp -P $SSH_PORT $MODEL_FILE $VERSION_FILE ${SERVER}:~/
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retVal=$?
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if [ $retVal -ne 0 ]; then
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echo '[ERROR] Failed to copy new files to server'
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return $retVal
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fi
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echo "[INFO] Moving files into public directory..."
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ssh -p ${SSH_PORT} ${SERVER} "sudo mv /home/pi/classifier.* ${SERVER_ROOT_PATH}"
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retVal=$?
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if [ $retVal -ne 0 ]; then
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echo '[ERROR] Failed to move files on server'
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return $retVal
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fi
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echo "[INFO] Updating permissions..."
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ssh -p ${SSH_PORT} ${SERVER} "sudo chown -R www-data\:www-data ${SERVER_ROOT_PATH}"
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retVal=$?
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if [ $retVal -ne 0 ]; then
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echo '[ERROR] Failed to update file permissions on server'
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return $retVal
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fi
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echo "[INFO] Backing up model..."
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mv $MODEL_FILE "${BACKUP_DIR}/classifier${NEW_VERSION}.mlmodel"
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retVal=$?
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if [ $retVal -ne 0 ]; then
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echo '[WARNING] Failed to back up model'
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rm $MODEL_FILE
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fi
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echo "[INFO] Cleaning up..."
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rm $VERSION_FILE
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echo "[INFO] Process finished"
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