UpdateController/update_psa_helpers

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#!/bin/bash
# if [ ${git_helpers_sourced:-1} = "1" ]; then
# readonly git_helpers_sourced=${BASH_SOURCE[0]}
#else
# return 0
#fi
source ./general_utils
exec_opkg_command () {
local func="${FUNCNAME[0]}"
log_debug "$func:${LINENO} exec-ing [$*]"
local __result=$(exec_process_substitution $*)
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local __result_code=$?
log_debug "$func:${LINENO} result=$__result"
printf '%s' "$__result"
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return $__result_code
}
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# Fetch/merge updates from predefined repository using git.
#
fetch_customer_updates() {
local func="${FUNCNAME[0]}"
if ! pull_customer_repository $1; then
return 1
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fi
return 0
}
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copy () {
local func="${FUNCNAME[0]}"
readarray -td' ' files <<< "$1"
for f in ${files[@]}; do
if grep -qE "^.*[.]conf.*$" <<< ${f}; then
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local __f="${psa_config_dir}/${f}"
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if ! cp ${__f} /etc/psa_config; then
log_error "$func:${LINENO}: cannot cp ${__f} /etc/psa_config"
return 1
fi
log_info "$func:${LINENO}: copied $f to /etc/psa_config"
# elif grep -qE "^.*[.]ini.*$" <<< ${f}; then
# if ! cp ${f} $psa_ini; then
# return 1
# fi
fi
done
log_debug "$func:${LINENO}: copied *conf/*ini-files to system-dirs"
return 0;
}
filter_system_files () {
local func="${FUNCNAME[0]}"
readarray -td' ' files <<< "$1"
local __system_files=""
for f in ${files[@]}; do
case "$f" in
("emp.conf"|"printer.conf"|"device.conf")
__system_files+="${f} "
;;
esac
done
log_debug "$func:${LINENO} system-files=$__system_files"
printf '%s' "$__system_files"
}
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# Check if the fetched/merged files have the correct md5 and are
# valid for the PSA.
#
check_md5_for_changed_conf_and_ini_files () {
local func="${FUNCNAME[0]}"
local json_key=""
local md5sum_update_conf=""
local md5sum_repository=""
log_debug "$func:${LINENO} files=$1"
if ! [ -z $1 ]; then
readarray -td' ' files <<< "$1"
for file in ${files[@]}; do
if [ "$file" = "emp.conf" ]; then
json_key=".conf.szeged.zg1.z1.etc.psa_config.emp"
md5sum_update_conf=$(cat $update_conf | jq -r $json_key)
md5sum_repository="$(md5sum $emp_conf | awk '{ print $1}')"
elif [ "$file" = "printer.conf" ]; then
json_key=".conf.szeged.zg1.z1.etc.psa_config.printer"
md5sum_update_conf=$(cat $update_conf | jq -r $json_key)
md5sum_repository="$(md5sum $printer_conf | awk '{ print $1}')"
elif [ "$file" = "device.conf" ]; then
json_key=".conf.szeged.zg1.z1.etc.psa_config.device"
md5sum_update_conf=$(cat $update_conf | jq -r $json_key)
md5sum_repository="$(md5sum $device_conf | awk '{ print $1}')"
else
continue
fi
if [ "$md5sum_repository" = "$md5sum_update_conf" ]; then
log_info "$func:${LINENO}: md5sum for $file ok"
else
local __r="repository: $md5sum_repository"
local __u="update.conf=$md5sum_update_conf"
local __m="$__r != $__u"
log_error "$func:${LINENO}: md5sum for $file wrong: $__m"
return 1
fi
done
else
log_debug "$func:${LINENO} no changed conf-/ini-files"
fi
return 0
}
check_md5_for_opkg_packages () {
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local func="${FUNCNAME[0]}"
local -n opkg_output_ref=$1
local package=""
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local md5sum_opkg_info=""
local filename=""
for line in ${opkg_output_ref[@]}; do
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log_info "$func:${LINENO}: line=$line"
if grep -qE "^\s*Package\s*:.*?$" <<< "$line"; then
package=${line#*:* }
elif grep -qE "^\s*MD5Sum\s*:.*?$" <<< "$line"; then
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md5sum_opkg_info=${line#*:* }
elif grep -qE "^\s*Filename\s*:.*?$" <<< "$line"; then
filename=${line#*:* }
fi
done
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local __update_conf="${customer_location_dir}/update.conf"
md5sum_repo=$(cat $__update_conf | jq -r .opkg.${package}.MD5Sum)
if ! [ -z $md5sum_repo ]; then
if [ "$md5sum_opkg_info" = "$md5sum_repo" ]; then
log_info "$func:${LINENO}: md5 $md5sum_repo OK for $package"
return 0
else
log_error "$func:${LINENO}: md5sum_repo [$md5sum_repo] "\
"!= md5sum_opkg_info [$md5sum_opkg_info] for $package"
fi
else
log_error "$func:${LINENO}: md5sum_repo empty"
fi
return 1
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}
# In case the new checked-out files are not correct, revert the git
# repository to its previous state.
#
revert_customer_repository () {
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local func="${FUNCNAME[0]}"
return 0
}
# Backup before the update-process.
#
backup_previous_version () {
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local func="${FUNCNAME[0]}"
return 0
}
exec_opkg_info () {
local func="${FUNCNAME[0]}"
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log_info "$func:${LINENO}: executing info $1"
opkg_result=$(exec_opkg_command "opkg info $1")
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if [ $? -eq 0 ]; then
# make sure the keywords start with '\n'
opkg_result=$(sed -E -e "s/(^.*)(Package)(.*$)/\n\2\3/g"\
-e "s/(^.*)(Version)(.*$)/\1\n\2\3/g"\
-e "s/(^.*)(Depends)(.*$)/\1\n\2\3/g"\
-e "s/(^.*)(Status)(.*$)/\1\n\2\3/g"\
-e "s/(^.*)(Architecture)(.*$)/\1\n\2\3/g"\
-e "s/(^.*)(Maintainer)(.*$)/\1\n\2\3/g"\
-e "s/(^.*)(MD5Sum)(.*$)/\1\n\2\3/g"\
-e "s/(^.*)(Filename)(.*$)/\1\n\2\3/g"\
-e "s/(^.*)(Source)(.*$)/\1\n\2\3/g"\
-e "s/(^.*)(Description)(.*$)/\1\n\2\3/g"\
-e "s/(^.*)(Installed-Size)(.*$)/\1\n\2\3/g"\
-e "s/(^.*)(Section)(.*$)/\1\n\2\3/g"\
-e "s/(^.*[^-])(Size)(.*$)/\1\n\2\3/g"\
-e "s/(^.*)(Installed-Time)(.*$)/\1\n\2\3/g"
<<< "$opkg_result")
local -n output_ref=$2
readarray -d $'\n' output_ref < <(printf '%s' "$opkg_result")
if [ $? -ne 0 ]; then
log_error "$func:${LINENO}: readarray finished with error"
return 1
fi
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log_info "$func:${LINENO}: ... done"
# log_info "$func:${LINENO}: opkg_result=${output_ref[@]}"
return 0
fi
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log_error "$func:${LINENO}: executing info $1"
return 1
}
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# Try to install new opkg-packages (in case the are some
# in the new git-checkout).
#
exec_opkg_noaction() {
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local func="${FUNCNAME[0]}"
local opkg_command_no_action="opkg --noaction $1"
log_debug "$func:${LINENO}: executing $opkg_command_no_action"
local __opkg_result=$(exec_opkg_command "opkg --noaction $1")
if [ $? -eq 0 ]; then
log_info "$func:${LINENO}: opkg_result=$__opkg_result"
return 0
fi
log_error "$func:${LINENO}: error executing opkg --noaction $1"
return 1
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}
# Install the new packages using opkg.
#
exec_opkg () {
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local func="${FUNCNAME[0]}"
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log_debug "$func:${LINENO}: executing $1"
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local __opkg_result=$(exec_opkg_command "opkg $1")
if [ $? -eq 0 ]; then
log_info "$func:${LINENO}: opkg_result=$__opkg_result"
return 0
fi
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log_error "$func:${LINENO}: error executing $1"
return 1
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}
# In case there was some error, re-install the previous package(s)
# and use the backup to restore any conf/ini-files.
#
fallback_to_previous_version() {
local func="${FUNCNAME[0]}"
return 0;
}
# If all went well, then execute all necessary cleanup steps.
#
cleanup_previous_version() {
local func="${FUNCNAME[0]}"
return 0
}