mirror of
https://gitlab.isc.org/isc-projects/bind9
synced 2025-08-22 01:59:26 +00:00
5cd6c173ff
Meson is a modern build system that has seen a rise in adoption and some version of it is available in almost every platform supported. Compared to automake, meson has the following advantages: * Meson provides a significant boost to the build and configuration time by better exploiting parallelism. * Meson is subjectively considered to be better in readability. These merits alone justify experimenting with meson as a way of improving development time and ergonomics. However, there are some compromises to ensure the transition goes relatively smooth: * The system tests currently rely on various files within the source directory. Changing this requirement is a non-trivial task that can't be currently justified. Currently the last compiled build directory writes into the source tree which is in turn used by pytest. * The minimum version supported has been fixed at 0.61. Increasing this value will require choosing a baseline of distributions that can package with meson. On the contrary, there will likely be an attempt to decrease this value to ensure almost universal support for building BIND 9 with meson.
60 lines
1.5 KiB
Python
60 lines
1.5 KiB
Python
# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
|
|
#
|
|
# SPDX-License-Identifier: MPL-2.0
|
|
#
|
|
# This Source Code Form is subject to the terms of the Mozilla Public
|
|
# License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
# file, you can obtain one at https://mozilla.org/MPL/2.0/.
|
|
#
|
|
# See the COPYRIGHT file distributed with this work for additional
|
|
# information regarding copyright ownership.
|
|
|
|
from pathlib import Path
|
|
from typing import Dict
|
|
|
|
|
|
SYSTEM_TEST_DIR_GIT_PATH = "bin/tests/system"
|
|
|
|
|
|
def load_vars_from_build_files() -> Dict[str, str]:
|
|
# TOP_BUILDDIR is special, it is always read from the source directory
|
|
top_builddir_file = Path(__file__).resolve().parent / ".build_vars" / "TOP_BUILDDIR"
|
|
if not top_builddir_file.exists():
|
|
raise RuntimeError(
|
|
'Uninitialized build variable: "TOP_BUILDDIR". Did you run `meson compile`?'
|
|
)
|
|
|
|
top_builddir = top_builddir_file.read_text(encoding="utf-8").strip()
|
|
|
|
build_vars = {
|
|
"TOP_BUILDDIR": top_builddir,
|
|
}
|
|
|
|
var_dir = (
|
|
Path(top_builddir)
|
|
/ SYSTEM_TEST_DIR_GIT_PATH
|
|
/ "isctest"
|
|
/ "vars"
|
|
/ ".build_vars"
|
|
)
|
|
|
|
for var in [
|
|
"CURL",
|
|
"FSTRM_CAPTURE",
|
|
"NC",
|
|
"PERL",
|
|
"PYTEST",
|
|
"PYTHON",
|
|
"SHELL",
|
|
"TOP_SRCDIR",
|
|
"XSLTPROC",
|
|
]:
|
|
var_file = var_dir / var
|
|
if var_file.exists():
|
|
build_vars[var] = var_file.read_text(encoding="utf-8").strip()
|
|
|
|
return build_vars
|
|
|
|
|
|
BUILD_VARS = load_vars_from_build_files()
|