Print option arguments in help output.

3 files changed, 37 insertions, 6 deletions

diff --git a/lib/cmd.sh b/lib/cmd.sh
index fa9b1ad..a14eb00 100644
--- a/lib/cmd.sh
+++ b/lib/cmd.sh
@@ -37,6 +37,36 @@ load_cmds()
 	done
 }
 
+print_opt_summaries()
+{
+	local optstring="${1}"
+	local padding=
+	local opt=
+	local opt_out=
+	local summary=
+
+	padding="$(printf '%24s' '')"
+	for opt in $(printf '%s' "${optstring}" | sed 's/\([a-zA-Z0-9]\)/ \1/g')
+	do
+		if [ ${#opt} -eq 1 ]; then
+			# No argument expected.
+			opt_out="-${opt}"
+		else
+			# Argument expected.
+			opt="${opt%?}"
+			opt_out="-${opt} $(get_msg "opt_${opt}_arg")"
+		fi
+		if [ ${#opt_out} -gt 20 ]; then
+			printf '  %s\n%24s' "${opt_out}" ''
+		else
+			printf '  %-20s  ' "${opt_out}"
+		fi
+		summary="$(get_msg "opt_${opt}_summary")"
+		printf '%s\n' "${summary}" | fold -s -w 56 | \
+			sed "2,\$s/^/${padding}/;"
+	done
+}
+
 print_cmd_summaries()
 {
 	local padding=
diff --git a/lib/cmd/help.sh b/lib/cmd/help.sh
index 733e9ed..e186663 100644
--- a/lib/cmd/help.sh
+++ b/lib/cmd/help.sh
@@ -33,9 +33,7 @@ cmd_help_main()
 	printf "$(get_msg 'cmd_help_head')\n\n" "${0}"
 
 	printf "$(get_msg 'cmd_help_opts_head')\n"
-	for opt in h V b; do
-		printf '  -%c  %s\n' "${opt}" "$(get_msg "cmd_help_opt_${opt}")"
-	done
+	print_opt_summaries 'hVb:'
 	printf '\n'
 
 	printf "$(get_msg 'cmd_help_summary_head')\n"
diff --git a/locale/en_US/pro_archman.sh b/locale/en_US/pro_archman.sh
index 512369e..3c43120 100644
--- a/locale/en_US/pro_archman.sh
+++ b/locale/en_US/pro_archman.sh
@@ -20,6 +20,12 @@
 # src/pro-archman.sh
 msg_pro_archman_lock_fail='The archive is locked by another process'
 
+# Options
+msg_pro_archman_opt_h_summary='print this help message'
+msg_pro_archman_opt_V_summary='print version information'
+msg_pro_archman_opt_b_summary='set archive base directory to <base-dir>'
+msg_pro_archman_opt_b_arg='<base-dir>'
+
 # lib/cmd.sh
 msg_pro_archman_cmd_not_found='Command "%s" not found'
 msg_pro_archman_cmd_usage='Usage: %s [<option> ...] %s %s'
@@ -27,9 +33,6 @@ msg_pro_archman_cmd_usage='Usage: %s [<option> ...] %s %s'
 # lib/cmd/help.sh
 msg_pro_archman_cmd_help_head='Usage: %s [<option> ...] <command>'
 msg_pro_archman_cmd_help_opts_head='Options:'
-msg_pro_archman_cmd_help_opt_h='print this help message'
-msg_pro_archman_cmd_help_opt_V='print version information'
-msg_pro_archman_cmd_help_opt_b='archive base directory'
 msg_pro_archman_cmd_help_summary_head='Commands:'
 msg_pro_archman_cmd_help_summary='print this help message'
 msg_pro_archman_cmd_help_usage='[<command>]'