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Make long option parsing work on OSX's BSD awk 20070501

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Kevin van Zonneveld 2016-02-16 21:59:38 +01:00
parent 894c7fe538
commit df3d535ab1
1 changed files with 14 additions and 13 deletions
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27
main.sh
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@ -35,6 +35,7 @@ set -o nounset
# Bash will remember & return the highest exitcode in a chain of pipes. # Bash will remember & return the highest exitcode in a chain of pipes.
# This way you can catch the error in case mysqldump fails in `mysqldump |gzip` # This way you can catch the error in case mysqldump fails in `mysqldump |gzip`
set -o pipefail set -o pipefail
# set -o xtrace
# Environment variables and their defaults # Environment variables and their defaults
LOG_LEVEL="${LOG_LEVEL:-6}" # 7 = debug -> 0 = emergency LOG_LEVEL="${LOG_LEVEL:-6}" # 7 = debug -> 0 = emergency
@ -110,10 +111,11 @@ trap cleanup_before_exit EXIT
# Translate usage string -> getopts arguments, and set $arg_<flag> defaults # Translate usage string -> getopts arguments, and set $arg_<flag> defaults
while read line; do while read line; do
# fetch single character version of option sting # fetch single character version of option sting
opt="$(echo "${line}" |awk 'match($1,"^-.",a){print substr(a[0],2,1)}')" opt="$(echo "${line}" |awk '{print $1}' |sed -e 's#^-##')"
# fetch long version if present # fetch long version if present
long_opt="$(echo "${line}" |awk 'match($2,"^--.*",a){print substr(a[0],3)}')" long_opt="$(echo "${line}" |awk '/\-\-/ {print $2}' |sed -e 's#^--##')"
# map long name back to short name # map long name back to short name
varname="short_opt_${long_opt}" varname="short_opt_${long_opt}"
eval "${varname}=\"${opt}\"" eval "${varname}=\"${opt}\""
@ -160,18 +162,17 @@ while getopts "${opts}" opt; do
((OPTIND+=has_arg_${opt})) # shift over the argument if argument is expected ((OPTIND+=has_arg_${opt})) # shift over the argument if argument is expected
fi fi
# we have set opt/OPTARG to the short value and the argument as OPTARG if it exists # we have set opt/OPTARG to the short value and the argument as OPTARG if it exists
else
varname="arg_${opt:0:1}"
default="${!varname}"
value="${OPTARG:-}"
if [ -z "${OPTARG:-}" ] && [ "${default}" = "0" ]; then
value="1"
fi
eval "${varname}=\"${value}\""
debug "cli arg ${varname} = ($default) -> ${!varname}"
fi fi
varname="arg_${opt:0:1}"
default="${!varname}"
value="${OPTARG:-}"
if [ -z "${OPTARG:-}" ] && [ "${default}" = "0" ]; then
value="1"
fi
eval "${varname}=\"${value}\""
debug "cli arg ${varname} = ($default) -> ${!varname}"
done done
shift $((OPTIND-1)) shift $((OPTIND-1))