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#!/bin/bash -e
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# This is a helper script to automatically deploy firmware binaries to a remote running esp-ota-update-server
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# It is configured by a project specific env-file which needs to be sourced before calling this script
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# TODO:
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# - implement sanity check for config vars
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## Settings you may want to adjust
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ESP_UPDATER_FS_PATH=/home/sqozz/esp_ota_updater # FS path to esp-ota-update-server on remote server (no trailing slash!)
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FIRMWARE_FS_PATH=$ESP_UPDATER_FS_PATH/firmwares/ # FS path to the firmwares. Only used to construct full path (REMOTE_BIN_FILE) later on
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CONFIG_FS_PATH=$ESP_UPDATER_FS_PATH/config.json # FS path to the config of esp-ota-update-server. Unsed to adjust the hash of the deployed binary
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LOCAL_BIN_FILE="$PROJECT_NAME.ino.nodemcu.bin" # name of the binary to flash - this is the default for arduino nodemcu binaries
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ssh-add -l 2> /dev/null > /dev/null
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if [ $? -eq 2 ]; then
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echo "ssh-agent is highly advisable for this script! Continuing anyway but you're going to be asked for you password quiet often."
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fi
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echo "=== PROJECT SETTINGS ==="
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echo "Updateserver: $USER@$UPDATE_SERVER"
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echo "Project: $PROJECT_NAME"
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echo "Branch: $FIRMWARE_BRANCH"
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echo ""
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# calculate local hash
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echo -n "Calculating hash for $LOCAL_BIN_FILE…"
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LOCAL_HASH=$(md5sum $LOCAL_BIN_FILE | awk '{ print $1 }')
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echo -e "\b -> $LOCAL_HASH… done."
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# calculate remote hash
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BIN_FS_PATH=$PROJECT_NAME/$FIRMWARE_BRANCH/$FIRMWARE_BRANCH.bin
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REMOTE_BIN_FILE=$FIRMWARE_FS_PATH$BIN_FS_PATH
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echo -n "Calculating hash for $USER@$UPDATE_SERVER:$REMOTE_BIN_FILE…"
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REMOTE_HASH=$(ssh $USER@$UPDATE_SERVER "md5sum $REMOTE_BIN_FILE" | awk '{ print $1 }')
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echo -e "\b -> $REMOTE_HASH… done."
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# only upload if the binary is not the same
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if [ "$LOCAL_HASH" = "$REMOTE_HASH" ]; then
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echo "Firmware already exists on update server, skipping upload…"
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exit 10
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fi
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echo -n "Uploading $LOCAL_BIN_FILE to $USER@$UPDATE_SERVER:$REMOTE_BIN_FILE… "
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scp $LOCAL_BIN_FILE $USER@$UPDATE_SERVER:$REMOTE_BIN_FILE > /dev/null
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echo "done."
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# we should never end up here if the transfer fails. This is just to be 100% sure
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REMOTE_HASH=$(ssh $USER@$UPDATE_SERVER "md5sum $REMOTE_BIN_FILE" | awk '{ print $1 }')
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echo "Remote hash after upload: $REMOTE_HASH"
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if [ "$LOCAL_HASH" != "$REMOTE_HASH" ]; then
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echo "Remote hash $REMOTE_HASH does not match local hash $LOCAL_HASH after upload!"
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exit 20
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fi
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# backup
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echo -n "Creating config.json backup to config.json.old… "
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ssh $USER@$UPDATE_SERVER "cp $CONFIG_FS_PATH $CONFIG_FS_PATH.old"
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echo "done."
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# if you pipe this directly into config.json it will result in a race and an erased/empty config
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# therefore we write it into a temp-config first
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echo -n "Creating updated config.json.new… "
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ssh $USER@$UPDATE_SERVER "cat $CONFIG_FS_PATH | jq '.firmwares.$PROJECT_NAME.$FIRMWARE_BRANCH.hash = \"$REMOTE_HASH\"' > $CONFIG_FS_PATH.new"
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echo "done."
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# and finally: deploy
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echo -n "Deploying updated config.json.new to config.json… "
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ssh $USER@$UPDATE_SERVER "cp $CONFIG_FS_PATH.new $CONFIG_FS_PATH"
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echo "done."
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sqozz