From 61d63097bec3a11f64e14a05a81401f9af7cea11 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Thu, 7 Oct 2021 15:08:28 +0200 Subject: configure: prepare for auto-generated option parsing Prepare the configure script and Makefile for automatically generated help and parsing. Because we need to run the script to generate the full help, we cannot rely on the user supplying the path to a Python interpreter with --python; therefore, the introspection output is parsed into shell functions and stored in scripts/. The converter is written in Python as standard for QEMU, and this commit contains a stub. Tested-by: Thomas Huth Message-Id: <20211007130829.632254-18-pbonzini@redhat.com> Signed-off-by: Paolo Bonzini --- scripts/meson-buildoptions.py | 64 +++++++++++++++++++++++++++++++++++++++++++ scripts/meson-buildoptions.sh | 13 +++++++++ 2 files changed, 77 insertions(+) create mode 100755 scripts/meson-buildoptions.py create mode 100644 scripts/meson-buildoptions.sh (limited to 'scripts') diff --git a/scripts/meson-buildoptions.py b/scripts/meson-buildoptions.py new file mode 100755 index 0000000..71ee56b --- /dev/null +++ b/scripts/meson-buildoptions.py @@ -0,0 +1,64 @@ +#! /usr/bin/env python3 + +# Generate configure command line options handling code, based on Meson's +# user build options introspection data +# +# Copyright (C) 2021 Red Hat, Inc. +# +# Author: Paolo Bonzini +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +import json +import textwrap +import shlex +import sys + +def sh_print(line=""): + print(' printf "%s\\n"', shlex.quote(line)) + + +def load_options(json): + json = [ + x + for x in json + if x["section"] == "user" + and ":" not in x["name"] + and x["name"] not in SKIP_OPTIONS + ] + return sorted(json, key=lambda x: x["name"]) + + +def print_help(options): + print("meson_options_help() {") + sh_print() + sh_print("Optional features, enabled with --enable-FEATURE and") + sh_print("disabled with --disable-FEATURE, default is enabled if available") + sh_print("(unless built with --without-default-features):") + sh_print() + print("}") + + +def print_parse(options): + print("_meson_option_parse() {") + print(" case $1 in") + print(" *) return 1 ;;") + print(" esac") + print("}") + + +options = load_options(json.load(sys.stdin)) +print("# This file is generated by meson-buildoptions.py, do not edit!") +print_help(options) +print_parse(options) diff --git a/scripts/meson-buildoptions.sh b/scripts/meson-buildoptions.sh new file mode 100644 index 0000000..c8ae205 --- /dev/null +++ b/scripts/meson-buildoptions.sh @@ -0,0 +1,13 @@ +# This file is generated by meson-buildoptions.py, do not edit! +meson_options_help() { + printf "%s\n" '' + printf "%s\n" 'Optional features, enabled with --enable-FEATURE and' + printf "%s\n" 'disabled with --disable-FEATURE, default is enabled if available' + printf "%s\n" '(unless built with --without-default-features):' + printf "%s\n" '' +} +_meson_option_parse() { + case $1 in + *) return 1 ;; + esac +} -- cgit v1.1