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 $*)
log_debug "$func:${LINENO} result=$__result"
printf '%s' "$__result"
}
# Fetch/merge updates from predefined repository using git.
#
fetch_customer_updates() {
local func="${FUNCNAME[0]}"
if ! pull_customer_repository $1; then
return 1
fi
return 0
}
# Check if the fetched/merged files have the correct md5 and are
# valid for the PSA.
#
check_md5_for_changed_customer_files () {
local func="${FUNCNAME[0]}"
#for file in ($1); do
# Check the updates for correct MD5
# log_error "$func:${LINENO}: new customer files wrong"
# revert_customer_repository ; exit 1
# fi
#done
return 0
}
check_md5_for_opkg_packages () {
local func="${FUNCNAME[0]}"
local -n opkg_output_ref=$1
local package=""
local md5sum=""
local filename=""
for line in ${opkg_output_ref[@]}; do
if grep -qE "^\s*Package\s*:.*?$" <<< "$line"; then
package=${line#*:* }
printf 'package=%s\n' "$package"
elif grep -qE "^\s*MD5Sum\s*:.*?$" <<< "$line"; then
md5sum=${line#*:* }
printf 'md5sum=%s\n' "$md5sum"
elif grep -qE "^\s*Filename\s*:.*?$" <<< "$line"; then
filename=${line#*:* }
printf 'filename=%s\n' "$filename"
fi
done
log_debug "$func:${LINENO}: $package | $md5sum | $filename"
return 0
}
# In case the new checked-out files are not correct, revert the git
# repository to its previous state.
#
revert_customer_repository() {
local func="${FUNCNAME[0]}"
return 0
}
# Backup before the update-process.
#
backup_previous_version () {
local func="${FUNCNAME[0]}"
return 0
}
exec_opkg_info () {
local func="${FUNCNAME[0]}"
log_info "$func:${LINENO}: executing $opkg_command"
opkg_result=$(exec_opkg_command "opkg info $1")
# make sure the keywords start with '\n'
opkg_result=$(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:${LINENO}: readarray finished with error"
return 1
fi
log_info "$func:${LINENO}: ... done"
log_info "$func:${LINENO}: opkg_result=${output_ref[@]}"
return 0
}
# Try to install new opkg-packages (in case the are some
# in the new git-checkout).
#
exec_opkg_no_action() {
local func="${FUNCNAME[0]}"
local opkg_command_no_action="opkg --noaction $1"
log_info "$func:${LINENO}: executing $opkg_command_no_action"
return 0
}
# Install the new packages using opkg.
#
exec_opkg () {
local func="${FUNCNAME[0]}"
log_info "$func:${LINENO}: executing $opkg_command"
local opkg_result=$(exec_opkg_command "opkg $1")
return 0
}
# In case there was some error, re-install the previous package(s)
# and use the backup to restore any conf/ini-files.
#
fallback_to_previous_version() {
local func="${FUNCNAME[0]}"
return 0;
}
# If all went well, then execute all necessary cleanup steps.
#
cleanup_previous_version() {
local func="${FUNCNAME[0]}"
return 0
}