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105 lines
3.2 KiB
105 lines
3.2 KiB
2 years ago
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#!/bin/sh
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# This spell facilitates the setting of the configurations for thy Bitcoin system.
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# Function to check if a command needs to be run with sudo
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retry_with_sudo() {
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echo "Permission denied. Invoking the power of the super user..."
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sudo "$@"
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if [ $? -ne 0 ]; then
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echo "Failed to execute with elevated privileges. Make certain thou hast the necessary permissions and try again."
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exit 1
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fi
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}
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# Handle Ctrl-C
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#trap "printf '\n'; exit 2" 2
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# Create bitcoin directory and configuration file if they do not exist
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mkdir -p "$HOME/.bitcoin"
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touch "$HOME/.bitcoin/bitcoin.conf"
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# Bitcoin defaults
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defaults="proxy=127.0.0.1:9050
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listen=1
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bind=127.0.0.1
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disablewallet=1
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zmqpubrawblock=tcp://127.0.0.1:28332
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zmqpubrawtx=tcp://127.0.0.1:28333"
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bitcoin_conf="$HOME/.bitcoin/bitcoin.conf"
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# If the file was just created (is empty), write defaults
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if [ ! -s "$bitcoin_conf" ]; then
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echo "$defaults" > "$bitcoin_conf"
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else
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ask_yn "Would you like to reset the bitcoin.conf file to defaults?" "n"
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reset_conf=$?
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if [ "$reset_conf" = 0 ]; then
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echo "$defaults" > "$bitcoin_conf"
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fi
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fi
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# Function to modify bitcoin.conf using awk
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modify_bitcoin_conf() {
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local key=$1
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local value=$2
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awk -v key="$key" -v value="$value" 'BEGIN {found=0} !/^#/ && $1==key {found=1; print key"="value; next} {print} END {if (!found) print key"="value}' "$bitcoin_conf" > "$bitcoin_conf.tmp" && mv "$bitcoin_conf.tmp" "$bitcoin_conf" || retry_with_sudo mv "$bitcoin_conf.tmp" "$bitcoin_conf"
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}
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# Pruning question and storage amount
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ask_yn "Wouldst thou like to enable pruning? Pruning allows thee to reduce disk usage by discarding some transaction history." "y"
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prune=$?
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if [ "$prune" = 0 ]; then
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modify_bitcoin_conf "prune" "1"
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valid_number=false
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while [ "$valid_number" = false ]; do
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printf "What is the maximum disk space thou art willing to dedicate to Bitcoin in GB? (Type a number) [default: 500]: "
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read -r max_disk
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if [ -z "$max_disk" ]; then
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max_disk=500
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valid_number=true
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elif validate_number "$max_disk"; then
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valid_number=true
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else
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printf "Invalid input. Please enter a valid number.\n"
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fi
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done
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# Convert GB to MB
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max_mem=$((max_disk * 1024))
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modify_bitcoin_conf "dbcache" "$max_mem"
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else
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modify_bitcoin_conf "prune" "0"
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fi
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# Network selection
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ask_yn "Art thou operating on the main Bitcoin network?" "y"
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mainnet=$?
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if [ "$mainnet" = 0 ]; then
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modify_bitcoin_conf "testnet" "0"
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else
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modify_bitcoin_conf "testnet" "1"
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fi
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# Blockchain storage location
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default_data_dir="$HOME/.bitcoin/blocks"
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modify_bitcoin_conf "datadir" "$default_data_dir"
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ask_yn "Wouldst thou like to store the blockchain in the default location ($default_data_dir)?" "y"
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alt_storage=$?
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if [ "$alt_storage" = 1 ]; then
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while true; do
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printf "Please type the alternate path thou wouldst like to use for blockchain storage: "
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read -r alt_path
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if validate_path "$alt_path"; then
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break
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else
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printf "That's not a valid UNIX path string. "
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fi
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done
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modify_bitcoin_conf "datadir" "$alt_path"
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fi
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printf "Bitcoin configuration has been updated.\n"
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