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+# Copyright 2019 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.
+
+import argparse
+
+meson_executable_template = '''project('{project_name}', '{language}',
+ version : '{version}',
+ default_options : [{default_options}])
+
+executable('{executable}',
+ {sourcespec},{depspec}
+ install : true)
+'''
+
+
+meson_jar_template = '''project('{project_name}', '{language}',
+ version : '{version}',
+ default_options : [{default_options}])
+
+jar('{executable}',
+ {sourcespec},{depspec}
+ main_class: '{main_class}',
+ install : true)
+'''
+
+
+def create_meson_build(options: argparse.Namespace) -> None:
+ if options.type != 'executable':
+ raise SystemExit('\nGenerating a meson.build file from existing sources is\n'
+ 'supported only for project type "executable".\n'
+ 'Run meson init in an empty directory to create a sample project.')
+ default_options = ['warning_level=3']
+ if options.language == 'cpp':
+ # This shows how to set this very common option.
+ default_options += ['cpp_std=c++14']
+ # If we get a meson.build autoformatter one day, this code could
+ # be simplified quite a bit.
+ formatted_default_options = ', '.join(f"'{x}'" for x in default_options)
+ sourcespec = ',\n '.join(f"'{x}'" for x in options.srcfiles)
+ depspec = ''
+ if options.deps:
+ depspec = '\n dependencies : [\n '
+ depspec += ',\n '.join(f"dependency('{x}')"
+ for x in options.deps.split(','))
+ depspec += '],'
+ if options.language != 'java':
+ content = meson_executable_template.format(project_name=options.name,
+ language=options.language,
+ version=options.version,
+ executable=options.executable,
+ sourcespec=sourcespec,
+ depspec=depspec,
+ default_options=formatted_default_options)
+ else:
+ content = meson_jar_template.format(project_name=options.name,
+ language=options.language,
+ version=options.version,
+ executable=options.executable,
+ main_class=options.name,
+ sourcespec=sourcespec,
+ depspec=depspec,
+ default_options=formatted_default_options)
+ open('meson.build', 'w', encoding='utf-8').write(content)
+ print('Generated meson.build file:\n\n' + content)