323 lines
8.5 KiB
Bash
Executable File
323 lines
8.5 KiB
Bash
Executable File
#!/bin/bash
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# Purpose {{{
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# This script will download Clonezilla Stable installer for both AMD64 and i368
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# and make a sample menu.cfg config file.
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# }}}
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# Vars {{{
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readonly PROGNAME=$(basename "${0}")
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readonly NBARGS="${#}"
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[ -z "${DEBUG}" ] && DEBUG=1
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## Export DEBUG for sub-script
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export DEBUG
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# Default value for TFTP's directory
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if command -v in.tftpd > /dev/null; then
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source /etc/default/tftpd-hpa
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else
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TFTP_DIRECTORY="/srv/tftp"
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fi
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CZ_INSTALLER_DIR="${TFTP_DIRECTORY}/installer/clonezilla"
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CZ_CONFIG_PXE="${CZ_INSTALLER_DIR}/menu.cfg.example"
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# Get latest version from https://clonezilla.org
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CZ_VERSION_DEFAULT="$(curl --no-progress-meter https://clonezilla.org/downloads.php | sed --silent 's;.*<b>stable</b>.*<font.*>\(.*\)</font>.*;\1;p')"
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## Colors
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readonly PURPLE='\033[1;35m'
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readonly RED='\033[0;31m'
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readonly RESET='\033[0m'
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readonly COLOR_DEBUG="${PURPLE}"
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# }}}
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usage() { # {{{
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cat <<- EOF
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usage: $PROGNAME [-d|-h|-v]
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This script will download Clonezilla Stable for both AMD64 and i368 architectures.
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EXAMPLES :
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- Download Clonezilla's to default place (${TFTP_DIRECTORY}).
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${PROGNAME}
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- Download a specific version of Clonezilla (default : ${CZ_VERSION_DEFAULT}).
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${PROGNAME} --version "2.7.1"
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OPTIONS :
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-v,--version
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Define the version of Clonezilla to download.
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-d,--debug
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Enable debug messages.
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-h,--help
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Print this help message.
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EOF
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}
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# }}}
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debug_message() { # {{{
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local_message="${1}"
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## Print message if DEBUG is enable (=0)
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[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6b\e[m\n' "DEBUG − ${PROGNAME} : ${local_message}"
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return 0
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}
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# }}}
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error_message() { # {{{
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local_error_message="${1}"
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local_error_code="${2}"
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## Print message
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printf '%b\n' "ERROR − ${PROGNAME} : ${RED}${local_error_message}${RESET}"
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exit "${local_error_code:=66}"
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}
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# }}}
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define_vars() { # {{{
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# If cz_version wasn't defined (argument) {{{
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if [ -z "${cz_version}" ]; then
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## Use default value
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cz_version="${CZ_VERSION_DEFAULT}"
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fi
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# }}}
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}
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# }}}
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is_var_empty() { # {{{
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## Return False by default
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return_var_empty="1"
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## Total number of variables to test
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local_total_var="${#}"
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loop_count_var_empty="0"
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## While it remains a variable to test
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while [ "${local_total_var}" -gt "${loop_count_var_empty}" ]; do
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debug_message "is_var_empty − \
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Test var: ${1}."
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### Test if this is empty and set return value to True
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[ -z "${1}" ] && return_var_empty="0"
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### Increase the number of tested variables
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loop_count_var_empty=$((loop_count_var_empty+1))
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### Shift to the next variable
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shift
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done
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return "${return_var_empty}"
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}
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# }}}
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is_file_absent() { # {{{
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local_file_absent="${1}"
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## File exists by default
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return_is_file_absent="1"
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### Check if the file exists
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# shellcheck disable=SC2086
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if find ${local_file_absent} > /dev/null 2>&1; then
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return_is_file_absent="1"
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debug_message "is_file_absent − \
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The file ${RED}${local_file_absent}${COLOR_DEBUG} exists."
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else
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return_is_file_absent="0"
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debug_message "is_file_absent − \
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The file ${RED}${local_file_absent}${COLOR_DEBUG} doesn't exist."
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fi
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return "${return_is_file_absent}"
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}
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# }}}
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download_file() { # {{{
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local_url="${1}"
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local_dest_file="${2}"
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debug_message "download_file − \
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Download ${local_url} to ${RED}${local_dest_file}${COLOR_DEBUG} ."
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wget --quiet "${local_url}" --output-document="${local_dest_file}"
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## Unset variables
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unset local_url
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unset local_dest_file
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}
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# }}}
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is_file_empty() { # {{{
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local_file="${1}"
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## File is empty by default
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return_is_file_empty="0"
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### Check if the file is empty
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if [ ! -s "${local_file}" ]; then
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return_is_file_empty="0"
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debug_message "is_file_empty − \
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The file ${RED}${local_file}${COLOR_DEBUG} is empty or doesn't exists."
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else
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return_is_file_empty="1"
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debug_message "is_file_empty − \
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The file ${RED}${local_file}${COLOR_DEBUG} exists and has a size greater than zero."
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fi
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## Unset variables
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unset local_file
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return "${return_is_file_empty}"
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}
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# }}}
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main() { # {{{
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# Define all vars
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define_vars
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# If cz_version is empty {{{
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# Exit with error
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is_var_empty "${cz_version}" \
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&& error_message "Clonezilla version variable is empty" 6
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# }}}
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# Create directories and config file
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debug_message "Main − \
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Create ${CZ_INSTALLER_DIR} tree."
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mkdir --parents -- "${CZ_INSTALLER_DIR}" \
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|| error_message "Can't create ${CZ_INSTALLER_DIR}/ directory." 1
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true > "${CZ_CONFIG_PXE}"
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for ARCH in amd64 i686; do # For available classic architectures
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#CZ_URL="https://osdn.jp/dl/clonezilla/clonezilla-live-${cz_version}-${ARCH}.zip"
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CZ_URL="https://sourceforge.net/projects/clonezilla/files/clonezilla_live_stable/${cz_version}/clonezilla-live-${cz_version}-${ARCH}.zip/download"
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CZ_TEMP_FILE="/tmp/clonezilla-live-${cz_version}-${ARCH}.zip"
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## If this version is not already present on the system
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if is_file_absent "${CZ_INSTALLER_DIR}/${ARCH}/${cz_version}"; then
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### Recreate directory and go
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rm --recursive --force -- "${CZ_INSTALLER_DIR}/${ARCH}"
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mkdir --parents -- "${CZ_INSTALLER_DIR}/${ARCH}" \
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|| error_message "Can't create ${CZ_INSTALLER_DIR}/${ARCH}/ directory." 1
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pushd "${CZ_INSTALLER_DIR}/${ARCH}" > /dev/null \
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|| error_message "Can't move to ${CZ_INSTALLER_DIR}/${ARCH} temp directory." 2
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### Download and extract only PXE files {{{
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download_file "${CZ_URL}" "${CZ_TEMP_FILE}"
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is_file_empty "${CZ_TEMP_FILE}" \
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&& error_message "${CZ_TEMP_FILE} is empty." 3
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debug_message "FOR loop − ${ARCH} − \
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Uncompress PXE files from ${CZ_TEMP_FILE} ."
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unzip -qq -j "${CZ_TEMP_FILE}" live/vmlinuz live/initrd.img live/filesystem.squashfs -d . \
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|| error_message "Can't properly extract ${CZ_TEMP_FILE} archive."
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### }}}
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### Remove temp file
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rm --force -- "${CZ_TEMP_FILE}" \
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|| error_message "Can't remove ${CZ_TEMP_FILE} temp file."
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### Add flag file to know that this version is available
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true > "${CZ_INSTALLER_DIR}/${ARCH}/${cz_version}"
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popd > /dev/null \
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|| error_message "Can't move back from ${CZ_INSTALLER_DIR}/${ARCH}/ directory." 2
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fi
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## Add informations to sample config file
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/bin/cat >> "${CZ_CONFIG_PXE}" << EOF
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label live${ARCH}
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menu label Clonezilla Live ^${ARCH}
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kernel installer/clonezilla/${ARCH}/vmlinuz
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APPEND initrd=installer/clonezilla/${ARCH}/initrd.img boot=live username=user union=overlay config components quiet noswap edd=on nomodeset nodmraid locales= keyboard-layouts= ocs_live_run="ocs-live-general" ocs_live_extra_param="" ocs_live_batch=no net.ifnames=0 nosplash noprompt fetch=tftp://129.20.203.27/installer/clonezilla/${ARCH}/filesystem.squashfs
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EOF
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done
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# Add separator and menu to sample config file
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/bin/cat >> "${CZ_CONFIG_PXE}" << EOF
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label separator
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menu label -----
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label mainmenu
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menu label ^Back..
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menu exit
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EOF
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}
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# }}}
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# Manage arguments # {{{
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# This code can't be in a function due to argument management
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if [ ! "${NBARGS}" -eq "0" ]; then
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manage_arg="0"
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## If the first argument is not an option
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if ! printf -- '%s' "${1}" | grep -q -E -- "^-+";
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then
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## Print help message and exit
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printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
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printf '%b\n' "---"
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usage
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exit 1
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fi
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# Parse all options (start with a "-") one by one
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while printf -- '%s' "${1}" | grep -q -E -- "^-+"; do
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case "${1}" in
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-v|--version ) ## Define cz_version
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## Move to the next argument
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shift
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## Define var
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readonly cz_version="${1}"
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;;
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-d|--debug ) ## debug
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DEBUG=0
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;;
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-h|--help ) ## help
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usage
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## Exit after help informations
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exit 0
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;;
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* ) ## unknow option
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printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
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printf '%b\n' "---"
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usage
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exit 1
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;;
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esac
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debug_message "Arguments management − \
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${RED}${1}${COLOR_DEBUG} option managed."
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## Move to the next argument
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shift
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manage_arg=$((manage_arg+1))
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done
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debug_message "Arguments management − \
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${RED}${manage_arg}${COLOR_DEBUG} argument(s) successfully managed."
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else
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debug_message "Arguments management − \
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No arguments/options to manage."
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fi
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# }}}
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main
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exit 0
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