check-synced.sh

#!/bin/bash

set -e

b_type=$(yq e '.bitcoind.type' /data/start9/config.yaml)
if [ "$b_type" = "internal" ]; then
    b_host="bitcoind.embassy"
    b_username=$(yq e '.bitcoind.user' /data/start9/config.yaml)
    b_password=$(yq e '.bitcoind.password' /data/start9/config.yaml)
elif [ "$b_type" = "internal-proxy" ]; then
    b_host="btc-rpc-proxy.embassy"
    b_username=$(yq e '.bitcoind.user' /data/start9/config.yaml)
    b_password=$(yq e '.bitcoind.password' /data/start9/config.yaml)
else
    b_host=$(yq e '.bitcoind.connection-settings.address' /data/start9/config.yaml)
    b_username=$(yq e '.bitcoind.connection-settings.user' /data/start9/config.yaml)
    b_password=$(yq e '.bitcoind.connection-settings.password' /data/start9/config.yaml)
fi
b_gbc_result=$(curl -sS --user $b_username:$b_password --data-binary '{"jsonrpc": "1.0", "id": "sync-hck", "method": "getblockcount", "params": []}' -H 'content-type: text/plain;' http://$b_host:8332/)
error_code=$?
if [ $error_code -ne 0 ]; then
    echo $b_gbc_result >&2
    exit $error_code
fi

b_block_count=$(echo "$b_gbc_result" | yq e '.result' -)
b_gbc_err=$(echo "$b_gbc_result" | yq e '.error' -)
if [ "$b_block_count" = "null" ]; then
    # Starting
    exit 60
else
    features_res=$(echo '{"jsonrpc": "2.0", "method": "server.features", "params": ["", "1.4"], "id": 0}' | netcat -q 1 127.0.0.1 50001)
    synced_height=$(curl -sS localhost:4224 | grep index_height | grep tip | awk '{ print $NF }')
    error_code=$?
    if [ $error_code -ne 0 ]; then
        echo $synced_height >&2
        exit $error_code
    fi

    if [ $synced_height -lt $b_block_count ]; then
        echo "Catching up to blocks from bitcoind. This should take at most a day. Progress: $synced_height of $b_block_count blocks" >&2
        exit 61
    elif [ -z $features_res ]; then
        echo "Synced to blockchain. Finalizing..." >&2
        exit 61
    else
        exit 0
    fi
fi