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#!/usr/bin/env bash
# -*- coding: utf-8 -*-
source '/usr/lib/rebash/core.sh'
core.import exceptions
core.import logging
type emergency_shell >/dev/null 2>&1 || source /lib/dracut-lib.sh
# tarcopy <source_dir> <target_dir>
tarcopy() {
[ -d "$1" -a -d "$2" ] || return 1
cd "$1"
local filelist="$(mktemp)"
find . \! -type d > "$filelist"
tar -c -p -T "$filelist" | tar -xp -C "$2"
rm -f -- "$filelist"
cd - &>/dev/null
}
# this module unpacks the config.tgz
temporary_extract_directory="$(mktemp -d)"
exceptions.try
{
exceptions.activate
if [[ -e "/etc/config.tgz" ]]; then
tar --extract --preserve-permissions \
--file="/etc/config.tgz" \
--directory="$temporary_extract_directory"
fi
}
exceptions.catch
{
logging.error "Failed to extract '/etc/config.tgz' to '$temporary_extract_directory'."
logging.error "$exceptions_last_traceback"
}
# extracted to temporary directory, now check for SLX_LOCAL_CONFIGURATION
source "/etc/openslx"
if [[ -n "$SLX_LOCAL_CONFIGURATION" ]]; then
exceptions.try
{
exceptions.activate
if [[ ! -d "${temporary_extract_directory}/openslx-configs/${SLX_LOCAL_CONFIGURATION}" ]]; then
logging.warn "SLX_LOCAL_CONFIGURATION is set but no corresponding folder found in '/etc/config.tgz'. Ignoring..."
else
tarcopy "${temporary_extract_directory}/openslx-configs/${SLX_LOCAL_CONFIGURATION}" "${temporary_extract_directory}"
fi
}
exceptions.catch
{
# errors here are not critical, so no emergency shell
logging.error "Failed to merge local configuration files for '$SLX_LOCAL_CONFIGURATION'."
logging.error "$exceptions_last_traceback"
}
fi
# now just copy everything from the temporary_extract_directory to the future root
exceptions.try
{
exceptions.activate
# purge openslx-configs/
rm -rf "${temporary_extract_directory}/openslx-configs"
tarcopy "${temporary_extract_directory}" "$NEWROOT"
}
exceptions.catch
{
# errors here are not critical, so no emergency shell
logging.error "Failed to copy extracted configuration files to '$NEWROOT'."
logging.error "$exceptions_last_traceback"
}
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