A script that converts fastboot steps in xml to bash script for use on linux systems

xml2bash.sh

#!/usr/bin/env bash
# Make bash more sane
set -euo pipefail

# PT-BR
# Para usar esse script você precisa dar permissão de execução, usando `chmod +x caminho_para_script.sh`
# Como usar: `./xml2bash caminho_para_flashfile.xml arquivo_de_saida.sh`
# Lembrando que o script gerado deve estar no diretório da rom para conseguir dar flash.

# EN-US
# To use this script you need to give it execution permission, using `chmod +x path_to_script.sh`
# Usage: `./xml2bash path_to_flashfile.xml output_file.sh`
# Remember that the generated script must be in the ROM directory to be able to flash it.

# Function to convert XML steps into fastboot commands
xml_file="$1"
output_sh="$2"

# Check if XML file exists
if [ ! -f "$xml_file" ]; then
	echo "Error: XML file '$xml_file' not found."
	exit 1
fi

convert_xml_to_bash() {
	# Extracting header
	phone_model=$(xmllint --xpath 'string(//header/phone_model/@model)' "$xml_file")
	software_version=$(xmllint --xpath 'string(//header/software_version/@version)' "$xml_file")
	subsidy_lock_config=$(xmllint --xpath 'string(//header/subsidy_lock_config/@name)' "$xml_file")
	regulatory_config=$(xmllint --xpath 'string(//header/regulatory_config/@name)' "$xml_file")
	sparsing_enabled=$(xmllint --xpath 'string(//header/sparsing/@enabled)' "$xml_file")
	max_sparse_size=$(xmllint --xpath 'string(//header/sparsing/@max-sparse-size)' "$xml_file")
	interface_name=$(xmllint --xpath 'string(//header/interfaces/interface/@name)' "$xml_file")

	cat <<EOF
#!/bin/env bash
# Make bash more sane
set -euo pipefail

# Header
PHONE_MODEL="$phone_model"
SOFTWARE_VERSION="$software_version"
SUBSIDY_LOCK_CONFIG="$subsidy_lock_config"
REGULATORY_CONFIG="$regulatory_config"
SPARSING_ENABLED=$sparsing_enabled
MAX_SPARSE_SIZE=$max_sparse_size
INTERFACE="$interface_name"

erase() {
  echo "Erasing partitions..."
EOF

	# Extracting erase steps
	xmllint --xpath '//step[@operation="erase"]' "$xml_file" | grep -oP 'partition="\K[^"]+' | while read -r partition; do
		echo "  \$SUDO fastboot erase $partition"
	done

	cat <<EOF
}

flash() {
  echo "Flashing..."
EOF

	# Extracting flash steps
	xmllint --xpath '//step[@operation="flash"]' "$xml_file" | grep -oP 'partition="\K[^"]+|filename="\K[^"]+' | paste - - | while read -r filename partition; do
		echo "  \$SUDO fastboot flash $partition $filename"
	done

	cat <<EOF
}

main() {
  echo '*** This script requires root privileges. ***'
  SUDO=
  if [ "\$UID" != "0" ]; then
    if [ -e /usr/bin/sudo -o -e /bin/sudo ]; then
      SUDO=sudo
    else
      echo '*** This script requires root privileges.'
      exit 0
    fi
  fi

  echo "Getting Devices..."
  \$SUDO fastboot devices
  echo "Getting var..."
  \$SUDO fastboot getvar max-sparse-size
  echo "Setting oem..."
  \$SUDO fastboot oem fb_mode_set

  erase
  flash

  \$SUDO fastboot oem fb_mode_clear
  \$SUDO fastboot reboot
  echo "Flashing completed!"
}

main
EOF
}

# Generate Bash script from XML
convert_xml_to_bash >"$output_sh"

# Make the output file executable
chmod +x "$output_sh"

echo "Script created: $output_sh"