scripts/cluster/maco.check.update.sh

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#!/bin/sh
# This script will check if Maco require an upgrade and
# will prepare the host in order to apply upgrade:
# 1. Disable SGE queue
# 2. Create a temp file (/tmp/.maco.upgrade or /tmp/.maco.urgent.upgrade)
# This script can be call by a cronjob (eg. weekly)
# Another script should try to apply upgrades also with cron (eg. hourly)
# Vars {{{
readonly PROGNAME=$(basename "${0}")
readonly PROGDIR=$(readlink -m $(dirname "${0}"))
readonly ARGS="${*}"
readonly NBARGS="${#}"
[ -z "${DEBUG}" ] && DEBUG=1
## Export DEBUG for sub-script
export DEBUG
# If output message should be displayed
[ -z "${OUTPUT_MESSAGE}" ] && OUTPUT_MESSAGE=0
## Export OUTPUT_MESSAGE for sub-script
export OUTPUT_MESSAGE
# If modifications should be applied
[ -z "${SIMULATE_MODE}" ] && SIMULATE_MODE=1
# If only urgent upgrade should be checked
[ -z "${URGENT_ONLY_MODE}" ] && URGENT_ONLY_MODE=1
## Colors
readonly PURPLE='\033[1;35m'
readonly RED='\033[0;31m'
readonly RESET='\033[0m'
readonly COLOR_DEBUG="${PURPLE}"
## Maco
readonly MACO_LOCAL_DIR="/opt/maco"
readonly MACO_INSTALL_DIR="/mnt/store.ipr/InstallProgs/ipr/maco"
readonly MACO_TMP_FILE="/tmp/.maco.upgrade"
readonly MACO_TMP_URGENT_FILE="/tmp/.maco.urgent.upgrade"
# }}}
usage() { # {{{
cat <<- EOF
usage: $PROGNAME [-d|-h|-q|-s|-u]
Compare current version of Maco script with the latest and
the urgent versions then try to prepare the host by:
* Disabling SGE queue
EXAMPLES:
- Verify Maco's upgrade and prepare the current host
${PROGNAME}
- Verify only urgent upgrade for Maco and prepare the current host
${PROGNAME} --urgent
OPTIONS:
-d,--debug
Enable debug messages.
-h,--help
Print this help message.
-q,--quiet
Disable messages on standard output (except for error).
-s,--simulate
Only display messages and don't manage temp files.
-u,--urgent
Check only for urgent upgrade.
EOF
}
# }}}
debug_message() { # {{{
local_debug_message="${1}"
## Print message if DEBUG is enable (=0)
[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6b\e[m\n' "DEBUG ${PROGNAME}: ${local_debug_message}"
return 0
}
# }}}
message() { # {{{
local_message="${1}"
## Print message if OUTPUT_MESSAGE is enable (=0)
[ "${OUTPUT_MESSAGE}" -eq "0" ] && printf '%b\n' "${local_message}"
return 0
}
# }}}
is_var_empty() { # {{{
## Return False by default
return_var_empty="1"
## Total number of variables to test
local_total_var="${#}"
loop_count_var_empty="0"
## While it remains a variable to test
while [ "${local_total_var}" -gt "${loop_count_var_empty}" ]; do
debug_message "is_var_empty \
Test var: ${1}."
### Test if this is empty and set return value to True
[ -z "${1}" ] && return_var_empty="0"
### Increase the number of tested variables
loop_count_var_empty=$((loop_count_var_empty+1))
### Shift to the next variable
shift
done
return "${return_var_empty}"
}
# }}}
is_maco_urgent_upgrade_require() { # {{{
return_urgent_upgrade=""
if [ "${URGENT_TIMESTAMP}" -gt "${CURRENT_TIMESTAMP}" ]; then
debug_message "is_maco_urgent_upgrade_require \
Urgent Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${URGENT_MACO_VERSION})."
message "Urgent Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${URGENT_MACO_VERSION})."
return_urgent_upgrade="0"
## If SIMULATE_MODE is not enable
if [ ! "${SIMULATE_MODE}" -eq 0 ]; then
### Also create an urgent temp file that can be monitored
### touch and append to keep existing content
touch "${MACO_TMP_URGENT_FILE}" && echo "Urgent Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${URGENT_MACO_VERSION})." >> "${MACO_TMP_URGENT_FILE}"
fi
else
debug_message "is_maco_urgent_upgrade_require \
Local Maco (${CURRENT_MACO_VERSION}) is newer than urgent upgrade (${URGENT_MACO_VERSION})."
return_urgent_upgrade="1"
## If SIMULATE_MODE is not enable
if [ ! "${SIMULATE_MODE}" -eq 0 ]; then
## Ensure urgent temp file is not present
rm -f -- "${MACO_TMP_URGENT_FILE}"
fi
fi
return "${return_urgent_upgrade}"
}
# }}}
is_maco_upgrade_require() { # {{{
return_upgrade=""
if [ "${LATEST_TIMESTAMP}" -gt "${CURRENT_TIMESTAMP}" ]; then
debug_message "is_maco_upgrade_require \
Latest Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${LATEST_MACO_VERSION})."
message "Latest Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${LATEST_MACO_VERSION})."
return_upgrade="0"
## If SIMULATE_MODE is not enable
if [ ! "${SIMULATE_MODE}" -eq 0 ]; then
### Also create a temp file that can be monitored
### touch and append to keep existing content
touch "${MACO_TMP_FILE}" && echo "Latest Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${LATEST_MACO_VERSION})." >> "${MACO_TMP_FILE}"
fi
else
debug_message "is_maco_upgrade_require \
Local Maco (${CURRENT_MACO_VERSION}) seems up to date (latest: ${LATEST_MACO_VERSION})."
return_upgrade="1"
## If SIMULATE_MODE is not enable
if [ ! "${SIMULATE_MODE}" -eq 0 ]; then
## Ensure temp file is not present
rm -f -- "${MACO_TMP_FILE}"
fi
fi
return "${return_upgrade}"
}
# }}}
is_maco_uptodate() { # {{{
return_uptodate=""
if [ "${CURRENT_TIMESTAMP}" = "${LATEST_TIMESTAMP}" ]; then
debug_message "is_maco_uptodate \
Local Maco (${CURRENT_MACO_VERSION}) is up to date (latest: ${LATEST_MACO_VERSION})."
message "Local Maco (${CURRENT_MACO_VERSION}) is up to date (latest: ${LATEST_MACO_VERSION})."
return_uptodate="0"
## If SIMULATE_MODE is not enable
if [ ! "${SIMULATE_MODE}" -eq 0 ]; then
## Ensure to remove temp files
rm -f -- "${MACO_TMP_FILE}" "${MACO_TMP_URGENT_FILE}"
fi
else
debug_message "is_maco_uptodate \
Local Maco version (${CURRENT_MACO_VERSION}) is different from latest version (${LATEST_MACO_VERSION})."
return_uptodate="1"
fi
return "${return_uptodate}"
}
# }}}
prepare_host_for_upgrade() { # {{{
sge_disable_host_queue_script="${PROGDIR}/sge.disable.host.queue.sh"
## If SIMULATE_MODE is enable
if [ "${SIMULATE_MODE}" -eq 0 ]; then
return 0
else
debug_message "prepare_host_for_upgrade \
Disable SGE queue."
sh "${sge_disable_host_queue_script}"
return "${?}"
fi
}
# }}}
main() { # {{{
## Get all Maco's versions (date)
readonly CURRENT_MACO_VERSION=$(< "${MACO_LOCAL_DIR}/maco-version.txt" awk -v FS=. '{ print $1 "-" $2 "-" $3 "T" $4 ":" $5 ":" $6 }' )
readonly LATEST_MACO_VERSION=$(< "${MACO_INSTALL_DIR}/maco-version.txt" awk -v FS=. '{ print $1 "-" $2 "-" $3 "T" $4 ":" $5 ":" $6 }' )
readonly URGENT_MACO_VERSION=$(< "${MACO_INSTALL_DIR}/urgent-maco-version.txt" awk -v FS=. '{ print $1 "-" $2 "-" $3 "T" $4 ":" $5 ":" $6 }' )
## Convert version to timestamp
readonly CURRENT_TIMESTAMP=$(date -d "${CURRENT_MACO_VERSION}" "+%s")
readonly LATEST_TIMESTAMP=$(date -d "${LATEST_MACO_VERSION}" "+%s")
readonly URGENT_TIMESTAMP=$(date -d "${URGENT_MACO_VERSION}" "+%s")
## If a variable is empty
## Exit with error code
is_var_empty "${CURRENT_MACO_VERSION}" "${LATEST_MACO_VERSION}" "${URGENT_MACO_VERSION}" "${CURRENT_TIMESTAMP}" "${LATEST_TIMESTAMP}" "${URGENT_TIMESTAMP}" \
&& exit 1
is_maco_uptodate \
&& exit 0
## If URGENT_ONLY_MODE is set
if [ "${URGENT_ONLY_MODE}" -eq "0" ]; then
### Check only for urgent upgrade {{{
is_maco_urgent_upgrade_require \
&& prepare_host_for_upgrade \
&& exit 0
### }}}
else
### Check for latest upgrade {{{
is_maco_upgrade_require \
&& prepare_host_for_upgrade \
&& exit 0
### }}}
### Check for urgent upgrade {{{
is_maco_urgent_upgrade_require \
&& prepare_host_for_upgrade \
&& exit 0
### }}}
fi
}
# }}}
# Manage arguments # {{{
# This code can't be in a function due to arguments
if [ ! "${NBARGS}" -eq "0" ]; then
manage_arg="0"
# Parse all options (start with a "-") one by one
while printf -- '%s' "${1}" | grep -q -E -- "^-+"; do
case "${1}" in
-h|--help ) ## help
usage
## Exit after help informations
exit 0
;;
-d|--debug ) ## debug
DEBUG=0
## Re-export new DEBUG value
export DEBUG
;;
-q|--quiet ) ## Silent mode
## Avoid to display any message on standard output
OUTPUT_MESSAGE=1
;;
-s|--simulate ) ## Simulate mode
## Only display messages
SIMULATE_MODE=0
;;
-u|--urgent ) ## Urgent upgrade only
## Check only for urgent upgrade
URGENT_ONLY_MODE=0
;;
-- ) ## End of options list
## End the while loop
break
;;
* )
printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
printf '%b\n' "---"
usage
exit 1
;;
esac
debug_message "Arguments management \
${1} option managed."
## Next arg
shift
manage_arg=$((manage_arg+1))
done
debug_message "Arguments management \
${manage_arg} argument(s) successfully managed."
else
debug_message "Arguments management \
No arguments/options to manage."
fi
# }}}
main
exit 255