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# Copyright 2018 The Meson development team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This class contains the basic functionality needed to run any interpreter
# or an interpreter-based tool
from . import AstInterpreter
from .. import compilers, environment, mesonlib, mparser, optinterpreter
from .. import coredata as cdata
from ..interpreterbase import InvalidArguments
import os
class IntrospectionHelper:
# mimic an argparse namespace
def __init__(self, cross_file):
self.cross_file = cross_file
self.native_file = None
self.cmd_line_options = {}
class IntrospectionInterpreter(AstInterpreter):
# Interpreter to detect the options without a build directory
# Most of the code is stolen from interperter.Interpreter
def __init__(self, source_root, subdir, backend, cross_file=None, subproject='', subproject_dir='subprojects', env=None):
super().__init__(source_root, subdir)
options = IntrospectionHelper(cross_file)
self.cross_file = cross_file
if env is None:
self.environment = environment.Environment(source_root, None, options)
else:
self.environment = env
self.subproject = subproject
self.subproject_dir = subproject_dir
self.coredata = self.environment.get_coredata()
self.option_file = os.path.join(self.source_root, self.subdir, 'meson_options.txt')
self.backend = backend
self.default_options = {'backend': self.backend}
self.project_data = {}
self.funcs.update({
'project': self.func_project,
'add_languages': self.func_add_languages
})
def func_project(self, node, args, kwargs):
if len(args) < 1:
raise InvalidArguments('Not enough arguments to project(). Needs at least the project name.')
proj_name = args[0]
proj_vers = kwargs.get('version', 'undefined')
proj_langs = self.flatten_args(args[1:])
if isinstance(proj_vers, mparser.ElementaryNode):
proj_vers = proj_vers.value
if not isinstance(proj_vers, str):
proj_vers = 'undefined'
self.project_data = {'descriptive_name': proj_name, 'version': proj_vers}
if os.path.exists(self.option_file):
oi = optinterpreter.OptionInterpreter(self.subproject)
oi.process(self.option_file)
self.coredata.merge_user_options(oi.options)
def_opts = self.flatten_args(kwargs.get('default_options', []))
self.project_default_options = mesonlib.stringlistify(def_opts)
self.project_default_options = cdata.create_options_dict(self.project_default_options)
self.default_options.update(self.project_default_options)
self.coredata.set_default_options(self.default_options, self.subproject, self.environment.cmd_line_options)
if not self.is_subproject() and 'subproject_dir' in kwargs:
spdirname = kwargs['subproject_dir']
if isinstance(spdirname, str):
self.subproject_dir = spdirname
if not self.is_subproject():
self.project_data['subprojects'] = []
subprojects_dir = os.path.join(self.source_root, self.subproject_dir)
if os.path.isdir(subprojects_dir):
for i in os.listdir(subprojects_dir):
if os.path.isdir(os.path.join(subprojects_dir, i)):
self.do_subproject(i)
self.coredata.init_backend_options(self.backend)
options = {k: v for k, v in self.environment.cmd_line_options.items() if k.startswith('backend_')}
self.coredata.set_options(options)
self.func_add_languages(None, proj_langs, None)
def do_subproject(self, dirname):
subproject_dir_abs = os.path.join(self.environment.get_source_dir(), self.subproject_dir)
subpr = os.path.join(subproject_dir_abs, dirname)
try:
subi = IntrospectionInterpreter(subpr, '', self.backend, cross_file=self.cross_file, subproject=dirname, subproject_dir=self.subproject_dir, env=self.environment)
subi.analyze()
subi.project_data['name'] = dirname
self.project_data['subprojects'] += [subi.project_data]
except:
return
def func_add_languages(self, node, args, kwargs):
args = self.flatten_args(args)
need_cross_compiler = self.environment.is_cross_build()
for lang in sorted(args, key=compilers.sort_clink):
lang = lang.lower()
if lang not in self.coredata.compilers:
self.environment.detect_compilers(lang, need_cross_compiler)
def is_subproject(self):
return self.subproject != ''
def analyze(self):
self.load_root_meson_file()
self.sanity_check_ast()
self.parse_project()
self.run()
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