Add a --help/--version to AsciiDoc convertor

liberty is now self-contained, from opt_handler to manual page.

tests/help2adoc.sh

@@ -0,0 +1,214 @@
+#!/bin/sh -e
+# This test very exactly matches the output,
+# but help2adoc is more or less feature-complete already.
+self=$(realpath "$0")
+help2adoc=$(realpath "$(dirname "$0")/../tools/help2adoc.awk")
+
+#- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+test_oneline_help() {
+cat <<END
+Usage: $self [--brightness [+-]BRIGHTNESS] [--input NAME] [--restart]
+END
+}
+
+test_oneline_version() {
+cat <<'END'
+eizoctl 1.0
+END
+}
+
+test_oneline_out() {
+cat <<'END'
+eizoctl(1)
+==========
+:doctype: manpage
+:manmanual: eizoctl Manual
+:mansource: eizoctl 1.0
+
+Name
+----
+eizoctl - manual page for eizoctl 1.0
+
+Synopsis
+--------
+*eizoctl* [**--brightness** [+-]__BRIGHTNESS__] [**--input** __NAME__] [**--restart**]
+END
+}
+
+#- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+test_simple_help() {
+cat <<'END'
+Usage: elksmart-comm [OPTION]... [COMMAND...]
+Usage: elksmart-comm
+Transmit or receive infrared commands.
+
+  -d, --debug                 elksmart-comm will run in debug mode
+ -f, --frequency HZ          frequency (38000 Hz by default)
+   -n, --nec                   use the NEC transmission format
+  -h, --help                  display this help and exit
+ -V, --version               output version information and exit
+END
+}
+
+test_simple_version() {
+cat <<'END'
+elksmart-comm (usb-drivers) dev
+END
+}
+
+test_simple_out() {
+cat <<'END'
+elksmart-comm(1)
+================
+:doctype: manpage
+:manmanual: elksmart-comm Manual
+:mansource: usb-drivers dev
+
+Name
+----
+elksmart-comm - manual page for elksmart-comm dev
+
+Synopsis
+--------
+*elksmart-comm* [__OPTION__]... [__COMMAND__...]
+
+*elksmart-comm*
+
+
+Description
+-----------
+Transmit or receive infrared commands.
+
+
+*-d*, **--debug**::
+	**elksmart-comm** will run in debug mode
+
+*-f*, **--frequency** __HZ__::
+	frequency (38000 Hz by default)
+
+*-n*, **--nec**::
+	use the NEC transmission format
+
+*-h*, **--help**::
+	display this help and exit
+
+*-V*, **--version**::
+	output version information and exit
+END
+}
+
+#- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+test_wild_help() {
+cat <<'END'
+Usage:
+ wild [option]… <command>… — Be wild
+What's happening?
+  -f, --frequency hz-2-foo  frequency to --foo at
+      --foo=bar
+  Foobar.
+  Boo far.
+
+ Subsection:
+  --help
+  --version
+  Oh my.
+
+Major section:
+And now for something completely different.
+  Very wild
+END
+}
+
+test_wild_version() {
+cat <<'END'
+wild 1
+Copies left and right.
+END
+}
+
+test_wild_out() {
+cat <<'END'
+wild(1)
+=======
+:doctype: manpage
+:manmanual: wild Manual
+:mansource: wild 1
+
+Name
+----
+wild - manual page for wild 1
+
+Synopsis
+--------
+*wild* [__option__]... <__command__>...
+
+
+Description
+-----------
+Be **wild**
+
+What's happening?
+
+*-f*, **--frequency** __hz-2-foo__::
+	frequency to **--foo** at
+
+*--foo*=__bar__::
+	Foobar.
+	Boo far.
+
+
+Subsection
+~~~~~~~~~~
+
+*--help*::
+
+*--version*::
+	Oh my.
+
+
+Major section
+-------------
+And now for something completely different.
+  Very wild
+END
+}
+
+#- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+run() {
+	echo "-- help2adoc/$1"
+	local selfquoted=$(echo "$self" | sed 's/\\/&&/g')
+	local output=$(TEST=$1 awk -f "$help2adoc" -v Target="$selfquoted")
+	local expect="$($1_out)"
+	if [ "$output" = "$expect" ]
+	then return
+	fi
+
+	echo "== Expected"
+	sed 's/^/   /' <<-END
+	$expect
+	END
+	echo "== Received"
+	sed 's/^/   /' <<-END
+	$output
+	END
+	exit 1
+}
+
+if [ -z "$TEST" ]
+then
+	run test_oneline
+	run test_simple
+	run test_wild
+	echo "-- OK"
+elif [ "$1" = "--help" ]
+then ${TEST}_help
+elif [ "$1" = "--version" ]
+then ${TEST}_version
+else
+	echo "Wrong usage"
+	exit 1
+fi