UpdateController/update_psa_impl

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2022-06-02 16:06:17 +02:00
# !/bin/bash -
source ./general_utils
source ./log_helpers
source ./git_helpers
source ./update_psa_helpers
source ./read_config
update_psa() {
local try_update_count=0
local func="${FUNCNAME[0]}"
# read config parameters
# read_config
log_debug "$func:${LINENO}: fetch/merge updates..."
# Fetch new updates (using git)
while :
do
local repository_is_already_up_to_date=""
if ! fetch_customer_updates repository_is_already_up_to_date; then
if [ "$repository_is_already_up_to_date" = "yes" ]; then
log_error "$func:${LINENO}: $customer_id is up-to-date"\
"-> no files to update -> no psa update"
exit 1
fi
try_updates_count=$((try_updates_count+1))
if [[ "$try_updates_count" -eq 5 ]]; then
log_error "$func:${LINENO}: fetch/merging failed" ; exit 1
fi
sleep 60s
else
# Fetched updates successfully
try_updates_count=0
break
fi
done
# TODO: backup implementieren
# Backup before any updates in case some previous test was wrong
if ! backup_previous_version; then
log_error "$func:${LINENO}: backup failed"
revert_customer_repository ; exit 1
fi
local changed_files=$(changed_file_names)
local conf_ini_files=$(filter_conf_ini_files "$changed_files")
# check if *.conf and/or *.ini-files have to md5-sum as denoted
# in update.conf
if ! check_md5_for_changed_conf_and_ini_files "$conf_ini_files" ; then
log_error "$func:${LINENO}: new customer files wrong"
revert_customer_repository ; exit 1
fi
# copy *.conf and/or *.ini-files to their corresponding system-directories
if ! copy $conf_ini_files; then
log_error "$func:${LINENO}: copy operation failed"
revert_customer_repository ; exit 1
fi
# check if the opkg-command-file has been changed during 'git pull'
if grep -qE ".*opkg_commands.*?" <<< $changed_files; then
# read opkg_cmds: each line respresents an opkg-command
readarray opkg_commands < <(cat $opkg_cmds_file)
for opkg_c in "${opkg_commands[@]}"; do
if grep -qE "^\s*[#]+.*$" <<< $opkg_c; then
continue # found comment line
fi
# package manipulation commands without package:
local cwp="update|upgrade|clean"
# informational commands without package:
cwp="${cwp}|list|list-installed|list-upgradable"
if grep -qE "^.*\s+($cwp)\s+.*$" <<< $opkg_c; then
local p=$(printf '%s' "$opkg_c" | awk '{ print $NF }')
local opkg_output=()
if ! exec_opkg_info "$p" opkg_output; then
log_error "$func:${LINENO}: opkg info $opkg_c failed"
revert_customer_repository ; exit 1
fi
if ! check_md5_for_opkg_packages opkg_output; then
log_error "$func:${LINENO}: "\
"wrong md5sum for opkg packages"
revert_customer_repository ; exit 1
fi
fi
# perform a dry-run and check if everything might work as expected.
if ! exec_opkg_noaction $opkg_c; then
log_error "$func:${LINENO}: "\
"opkg --noaction $opkg_c failed"
fi
# Actually execute the opkg command
if ! exec_opkg $opkg_c; then
log_error "$func:${LINENO}: exec_opkg $opkg_c failed"
fallback_to_previous_version
revert_customer_repository ; exit 1
fi
done
else
log_info "$func:${LINENO}: no opkg commnds to execute"
fi
# Cleanup.
if ! cleanup_previous_version; then
log_error "$func:${LINENO}: cleanup_previous_version failed"
fi
log_info "$func:${LINENO}: success"
exit 0
}