Allow some basics options (-h and -d)

This commit is contained in:
Jeremy Gardais 2020-09-24 15:18:09 +02:00
parent e35b7af614
commit 8b7a32ccfb
Signed by: jegardai
GPG Key ID: E759BAA22501AF32
1 changed files with 64 additions and 18 deletions

View File

@ -13,7 +13,7 @@ readonly PROGNAME=$(basename "${0}")
readonly PROGDIR=$(readlink -m $(dirname "${0}")) readonly PROGDIR=$(readlink -m $(dirname "${0}"))
readonly ARGS="${*}" readonly ARGS="${*}"
readonly NBARGS="${#}" readonly NBARGS="${#}"
[ -z "${DEBUG}" ] && readonly DEBUG=1 [ -z "${DEBUG}" ] && DEBUG=1
## Export DEBUG for sub-script ## Export DEBUG for sub-script
export DEBUG export DEBUG
@ -26,21 +26,6 @@ readonly RESET='\033[0m'
readonly COLOR_DEBUG="${PURPLE}" readonly COLOR_DEBUG="${PURPLE}"
# }}} # }}}
manage_args() { # {{{
case "${NBARGS}" in
0 ) ## Nothing to do
;;
* )
printf '%b\n' "${RED}Don't expect any arguments.${RESET}"
printf '%b\n' "---"
usage
exit 1
;;
esac
}
# }}}
usage() { # {{{ usage() { # {{{
cat <<- EOF cat <<- EOF
@ -53,6 +38,13 @@ try to prepare the host by:
EXAMPLES: EXAMPLES:
- Verify upgrade and prepare the current host - Verify upgrade and prepare the current host
${PROGNAME} ${PROGNAME}
OPTIONS:
-d,--debug
Enable debug messages.
-h,--help
Print this help message.
EOF EOF
} }
@ -141,8 +133,6 @@ Pending jobs for the compute cluster: ${RED}${local_pending_jobs:=/dev/null}${CO
# }}} # }}}
main() { # {{{ main() { # {{{
manage_args "${ARGS}"
sge_disable_host_queue_script="${PROGDIR}/sge.disable.host.queue.sh" sge_disable_host_queue_script="${PROGDIR}/sge.disable.host.queue.sh"
## If NO APT package upgrade is available {{{ ## If NO APT package upgrade is available {{{
@ -176,6 +166,62 @@ main() { # {{{
} }
# }}} # }}}
# Manage arguments # {{{
# This code can't be in a function due to arguments
if [ ! "${NBARGS}" -eq "0" ]; then
manage_arg="0"
## If the first argument is not an option
if ! printf -- '%s' "${1}" | grep -q -E -- "^-+";
then
## Print help message and exit
printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
printf '%b\n' "---"
usage
exit 1
fi
# Parse all options (start with a "-") one by one
while printf -- '%s' "${1}" | grep -q -E -- "^-+"; do
case "${1}" in
-d|--debug ) ## debug
DEBUG=0
;;
-h|--help ) ## help
usage
## Exit after help informations
exit 0
;;
* ) ## unknow option
printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
printf '%b\n' "---"
usage
exit 1
;;
esac
debug_message "Arguments management \
${RED}${1}${COLOR_DEBUG} option managed."
## Move to the next argument
shift
manage_arg=$((manage_arg+1))
done
debug_message "Arguments management \
${RED}${manage_arg}${COLOR_DEBUG} argument(s) successfully managed."
else
debug_message "Arguments management \
No arguments/options to manage."
fi
# }}}
main main
exit 255 exit 255