mirror of
https://github.com/kvz/bash3boilerplate.git
synced 2024-12-19 22:57:51 +00:00
Merge pull request #73 from mstreuhofer/usage-validation
Added automatic usage validation for required args Thanks again for another wonderful contribution, @mstreuhofer!
This commit is contained in:
Izaak Beekman
GitHub
commit
02cb82c9e6
50
main.sh
50
main.sh
@ -159,28 +159,34 @@ while read -r __b3bp_tmp_line; do
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__b3bp_tmp_long_opt="${__b3bp_tmp_long_opt%% *}"
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fi
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# map long name back to short name
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printf -v "__b3bp_tmp_short_opt_${__b3bp_tmp_long_opt//-/_}" '%s' "${__b3bp_tmp_opt}"
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# map opt long name to+from opt short name
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printf -v "__b3bp_tmp_opt_long2short_${__b3bp_tmp_long_opt//-/_}" '%s' "${__b3bp_tmp_opt}"
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printf -v "__b3bp_tmp_opt_short2long_${__b3bp_tmp_opt}" '%s' "${__b3bp_tmp_long_opt//-/_}"
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# check if option takes an argument
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if [[ ! "${__b3bp_tmp_line}" =~ \[.*\] ]]; then
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__b3bp_tmp_init="0" # it's a flag. init with 0
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printf -v "__b3bp_tmp_has_arg_${__b3bp_tmp_opt:0:1}" '%s' "0"
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else
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if [[ "${__b3bp_tmp_line}" =~ \[.*\] ]]; then
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__b3bp_tmp_opt="${__b3bp_tmp_opt}:" # add : if opt has arg
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__b3bp_tmp_init="" # it has an arg. init with ""
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printf -v "__b3bp_tmp_has_arg_${__b3bp_tmp_opt:0:1}" '%s' "1"
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elif [[ "${__b3bp_tmp_line}" =~ \{.*\} ]]; then
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__b3bp_tmp_opt="${__b3bp_tmp_opt}:" # add : if opt has arg
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__b3bp_tmp_init="" # it has an arg. init with ""
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# remember that this option requires an argument
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printf -v "__b3bp_tmp_has_arg_${__b3bp_tmp_opt:0:1}" '%s' "2"
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else
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__b3bp_tmp_init="0" # it's a flag. init with 0
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printf -v "__b3bp_tmp_has_arg_${__b3bp_tmp_opt:0:1}" '%s' "0"
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fi
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__b3bp_tmp_opts="${__b3bp_tmp_opts:-}${__b3bp_tmp_opt}"
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fi
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[ -z "${__b3bp_tmp_opt:-}" ] && continue
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if [[ "${__b3bp_tmp_line}" =~ \.\ Default ]]; then
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if [[ "${__b3bp_tmp_line}" =~ (^|\.\ *)Default= ]]; then
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# ignore default value if option does not have an argument
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__b3bp_tmp_varname="__b3bp_tmp_has_arg_${__b3bp_tmp_opt:0:1}"
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if [ "${!__b3bp_tmp_varname}" = "1" ]; then
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if [ "${!__b3bp_tmp_varname}" != "0" ]; then
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__b3bp_tmp_init="${__b3bp_tmp_line##*Default=}"
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__b3bp_tmp_re='^"(.*)"$'
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if [[ "${__b3bp_tmp_init}" =~ ${__b3bp_tmp_re} ]]; then
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@ -194,6 +200,11 @@ while read -r __b3bp_tmp_line; do
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fi
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fi
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if [[ "${__b3bp_tmp_line}" =~ (^|\.\ *)Required\. ]]; then
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# remember that this option requires an argument
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printf -v "__b3bp_tmp_has_arg_${__b3bp_tmp_opt:0:1}" '%s' "2"
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fi
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printf -v "arg_${__b3bp_tmp_opt:0:1}" '%s' "${__b3bp_tmp_init}"
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done <<< "${__usage:-}"
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@ -218,13 +229,13 @@ if [ -n "${__b3bp_tmp_opts:-}" ]; then
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# --key=value format
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__b3bp_tmp_long_opt=${OPTARG/=*/}
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# Set opt to the short option corresponding to the long option
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__b3bp_tmp_varname="__b3bp_tmp_short_opt_${__b3bp_tmp_long_opt//-/_}"
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__b3bp_tmp_varname="__b3bp_tmp_opt_long2short_${__b3bp_tmp_long_opt//-/_}"
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printf -v "__b3bp_tmp_opt" '%s' "${!__b3bp_tmp_varname}"
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OPTARG=${OPTARG#*=}
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else
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# --key value format
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# Map long name to short version of option
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__b3bp_tmp_varname="__b3bp_tmp_short_opt_${OPTARG//-/_}"
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__b3bp_tmp_varname="__b3bp_tmp_opt_long2short_${OPTARG//-/_}"
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printf -v "__b3bp_tmp_opt" '%s' "${!__b3bp_tmp_varname}"
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# Only assign OPTARG if option takes an argument
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__b3bp_tmp_varname="__b3bp_tmp_has_arg_${__b3bp_tmp_opt}"
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@ -253,6 +264,25 @@ if [ -n "${__b3bp_tmp_opts:-}" ]; then
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fi
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### Automatic validation of required option arguments
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##############################################################################
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for __b3bp_tmp_varname in ${!__b3bp_tmp_has_arg_*}; do
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# validate only options which required an argument
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[ "${!__b3bp_tmp_varname}" = "2" ] || continue
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__b3bp_tmp_opt_short="${__b3bp_tmp_varname##*_}"
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__b3bp_tmp_varname="arg_${__b3bp_tmp_opt_short}"
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[ -n "${!__b3bp_tmp_varname}" ] && continue
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__b3bp_tmp_varname="__b3bp_tmp_opt_short2long_${__b3bp_tmp_opt_short}"
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printf -v "__b3bp_tmp_opt_long" '%s' "${!__b3bp_tmp_varname}"
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[ -n "${__b3bp_tmp_opt_long:-}" ] && __b3bp_tmp_opt_long=" (--${__b3bp_tmp_opt_long//_/-})"
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help "Option -${__b3bp_tmp_opt_short}${__b3bp_tmp_opt_long:-} requires an argument"
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done
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### Cleanup Environment variables
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##############################################################################
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1
test/fixture/main-usage-validation.exitcode
Normal file
1
test/fixture/main-usage-validation.exitcode
Normal file
@ -0,0 +1 @@
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0
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155
test/fixture/main-usage-validation.stdio
Normal file
155
test/fixture/main-usage-validation.stdio
Normal file
@ -0,0 +1,155 @@
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ACCPTST:STDIO_REPLACE_DATETIMES
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# complain about -3
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Option -3 (--three) requires an argument
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-0 --zero Do nothing.
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-1 --one Do one thing. Required.
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More description.
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-2 --two Do two things.
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More. Required. Description.
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-3 --three [arg] Do three things.
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Required.
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-4 --four {arg} Do four things.
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-5 --five {arg} Do five things. Required. Maybe.
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-6 --six [arg] Do six things. Not Required.
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Required, it is not.
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-7 --seven [arg] Required. Or bust.
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-8 --eight [arg] Do eight things.
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More.Required.Description.
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-a [arg] Do A. Required.
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Default="do-a"
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-b {arg} Do B.Default="do-b"
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-c [arg] Required. Default="do-c"
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-d {arg} Default="do-d"
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This is Bash3 Boilerplate's help text. Feel free to add any description of your
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program or elaborate more on command-line arguments. This section is not
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parsed and will be added as-is to the help.
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# complain about -4
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Option -4 (--four) requires an argument
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-0 --zero Do nothing.
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-1 --one Do one thing. Required.
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More description.
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-2 --two Do two things.
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More. Required. Description.
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-3 --three [arg] Do three things.
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Required.
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-4 --four {arg} Do four things.
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-5 --five {arg} Do five things. Required. Maybe.
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-6 --six [arg] Do six things. Not Required.
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Required, it is not.
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-7 --seven [arg] Required. Or bust.
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-8 --eight [arg] Do eight things.
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More.Required.Description.
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-a [arg] Do A. Required.
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Default="do-a"
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-b {arg} Do B.Default="do-b"
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-c [arg] Required. Default="do-c"
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-d {arg} Default="do-d"
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This is Bash3 Boilerplate's help text. Feel free to add any description of your
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program or elaborate more on command-line arguments. This section is not
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parsed and will be added as-is to the help.
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# complain about -5
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Option -5 (--five) requires an argument
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-0 --zero Do nothing.
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-1 --one Do one thing. Required.
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More description.
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-2 --two Do two things.
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More. Required. Description.
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-3 --three [arg] Do three things.
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Required.
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-4 --four {arg} Do four things.
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-5 --five {arg} Do five things. Required. Maybe.
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-6 --six [arg] Do six things. Not Required.
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Required, it is not.
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-7 --seven [arg] Required. Or bust.
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-8 --eight [arg] Do eight things.
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More.Required.Description.
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-a [arg] Do A. Required.
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Default="do-a"
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-b {arg} Do B.Default="do-b"
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-c [arg] Required. Default="do-c"
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-d {arg} Default="do-d"
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This is Bash3 Boilerplate's help text. Feel free to add any description of your
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program or elaborate more on command-line arguments. This section is not
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parsed and will be added as-is to the help.
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# complain about -8 (because -7 syntax is not supported)
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Option -8 (--eight) requires an argument
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-0 --zero Do nothing.
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-1 --one Do one thing. Required.
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More description.
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-2 --two Do two things.
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More. Required. Description.
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-3 --three [arg] Do three things.
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Required.
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-4 --four {arg} Do four things.
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-5 --five {arg} Do five things. Required. Maybe.
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-6 --six [arg] Do six things. Not Required.
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Required, it is not.
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-7 --seven [arg] Required. Or bust.
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-8 --eight [arg] Do eight things.
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More.Required.Description.
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-a [arg] Do A. Required.
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Default="do-a"
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-b {arg} Do B.Default="do-b"
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-c [arg] Required. Default="do-c"
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-d {arg} Default="do-d"
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This is Bash3 Boilerplate's help text. Feel free to add any description of your
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program or elaborate more on command-line arguments. This section is not
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parsed and will be added as-is to the help.
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# complain about -d (because -d syntax is not supported)
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Option -d requires an argument
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-0 --zero Do nothing.
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-1 --one Do one thing. Required.
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More description.
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-2 --two Do two things.
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More. Required. Description.
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-3 --three [arg] Do three things.
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Required.
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-4 --four {arg} Do four things.
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-5 --five {arg} Do five things. Required. Maybe.
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-6 --six [arg] Do six things. Not Required.
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Required, it is not.
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-7 --seven [arg] Required. Or bust.
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-8 --eight [arg] Do eight things.
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More.Required.Description.
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-a [arg] Do A. Required.
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Default="do-a"
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-b {arg} Do B.Default="do-b"
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-c [arg] Required. Default="do-c"
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-d {arg} Default="do-d"
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This is Bash3 Boilerplate's help text. Feel free to add any description of your
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program or elaborate more on command-line arguments. This section is not
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parsed and will be added as-is to the help.
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# complain about nothing
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{datetime} UTC [ info] arg_0: 0
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{datetime} UTC [ info] arg_1: 0
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{datetime} UTC [ info] arg_2: 0
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{datetime} UTC [ info] arg_3: arg3
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{datetime} UTC [ info] arg_4: arg4
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{datetime} UTC [ info] arg_5: arg5
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{datetime} UTC [ info] arg_6:
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{datetime} UTC [ info] arg_7:
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{datetime} UTC [ info] arg_8: arg8
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{datetime} UTC [ info] arg_a: do-a
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{datetime} UTC [ info] arg_b: do-b
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{datetime} UTC [ info] arg_c: do-c
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{datetime} UTC [ info] arg_d: argd
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@ -12,4 +12,4 @@ __root="$(cd "$(dirname $(dirname $(dirname "${__dir}")))" && pwd)"
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echo "ACCPTST:STDIO_REPLACE_DATETIMES"
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bash "${__root}/main.sh" -h
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bash "${__root}/main.sh" -f /tmp/x -h
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60
test/scenario/main-usage-validation/run.sh
Executable file
60
test/scenario/main-usage-validation/run.sh
Executable file
@ -0,0 +1,60 @@
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#!/usr/bin/env bash
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set -o pipefail
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set -o errexit
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set -o nounset
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# set -o xtrace
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# Set magic variables for current FILE & DIR
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__dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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__file="${__dir}/$(basename "${BASH_SOURCE[0]}")"
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__base="$(basename ${__file} .sh)"
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__root="$(cd "$(dirname $(dirname $(dirname "${__dir}")))" && pwd)"
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# Set __usage and source main.sh
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read -r -d '' __usage <<-'EOF' || true # exits non-zero when EOF encountered
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-0 --zero Do nothing.
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-1 --one Do one thing. Required.
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More description.
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-2 --two Do two things.
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More. Required. Description.
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-3 --three [arg] Do three things.
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Required.
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-4 --four {arg} Do four things.
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-5 --five {arg} Do five things. Required. Maybe.
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-6 --six [arg] Do six things. Not Required.
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Required, it is not.
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-7 --seven [arg] Required. Or bust.
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-8 --eight [arg] Do eight things.
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More.Required.Description.
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-a [arg] Do A. Required.
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Default="do-a"
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-b {arg} Do B.Default="do-b"
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-c [arg] Required. Default="do-c"
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-d {arg} Default="do-d"
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EOF
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export __usage
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export NO_COLOR="true"
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echo "ACCPTST:STDIO_REPLACE_DATETIMES"
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echo "# complain about -3"
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(source "${__root}/main.sh") || true
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echo "# complain about -4"
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(source "${__root}/main.sh" -3 arg3) || true
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echo "# complain about -5"
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(source "${__root}/main.sh" -3 arg3 -4 arg4) || true
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echo "# complain about -8 (because -7 syntax is not supported)"
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(source "${__root}/main.sh" -3 arg3 -4 arg4 -5 arg5) || true
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echo "# complain about -d (because -d syntax is not supported)"
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(source "${__root}/main.sh" -3 arg3 -4 arg4 -5 arg5 -8 arg8) || true
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echo "# complain about nothing"
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(
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source "${__root}/main.sh" -3 arg3 -4 arg4 -5 arg5 -8 arg8 -d argd
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for argument in ${!arg_*}; do info "${argument}: ${!argument}"; done
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)
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