templates: Add a Meson version

Without a version certain kinds of warnings will be suppressed, which is
bad.

I've picked 1.0 because it's pretty old, except for Rust where I've
maintained the 1.3.0 requirement

mesonbuild/templates/cpptemplates.py

@@ -23,6 +23,7 @@ int main(int argc, char **argv) {{
 
 hello_cpp_meson_template = '''project('{project_name}', 'cpp',
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['warning_level=3',
                      'cpp_std=c++14'])
 
@@ -95,6 +96,7 @@ int main(int argc, char **argv) {{
 
 lib_cpp_meson_template = '''project('{project_name}', 'cpp',
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['warning_level=3', 'cpp_std=c++14'])
 
 # These arguments are only used to build the shared library

mesonbuild/templates/cstemplates.py

@@ -26,6 +26,7 @@ public class {class_name} {{
 
 hello_cs_meson_template = '''project('{project_name}', 'cs',
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['warning_level=3'])
 
 exe = executable('{exe_name}', '{source_name}',
@@ -63,6 +64,7 @@ public class {class_test} {{
 
 lib_cs_meson_template = '''project('{project_name}', 'cs',
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['warning_level=3'])
 
 stlib = shared_library('{lib_name}', '{source_file}',

mesonbuild/templates/ctemplates.py

@@ -54,6 +54,7 @@ int main(int argc, char **argv) {{
 
 lib_c_meson_template = '''project('{project_name}', 'c',
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['warning_level=3'])
 
 # These arguments are only used to build the shared library
@@ -105,6 +106,7 @@ int main(int argc, char **argv) {{
 '''
 
 hello_c_meson_template = '''project('{project_name}', 'c',
+  meson_version : '>= {meson_version}',
   version : '{version}',
   default_options : ['warning_level=3'])
 

mesonbuild/templates/cudatemplates.py

@@ -23,6 +23,7 @@ int main(int argc, char **argv) {{
 
 hello_cuda_meson_template = '''project('{project_name}', ['cuda', 'cpp'],
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['warning_level=3',
                      'cpp_std=c++14'])
 
@@ -95,6 +96,7 @@ int main(int argc, char **argv) {{
 
 lib_cuda_meson_template = '''project('{project_name}', ['cuda', 'cpp'],
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['warning_level=3'])
 
 # These arguments are only used to build the shared library

mesonbuild/templates/dlangtemplates.py

@@ -26,6 +26,7 @@ int main(string[] args) {{
 
 hello_d_meson_template = '''project('{project_name}', 'd',
     version : '{version}',
+    meson_version : '>= {meson_version}',
     default_options: ['warning_level=3'])
 
 exe = executable('{exe_name}', '{source_name}',
@@ -64,6 +65,7 @@ int main(string[] args) {{
 
 lib_d_meson_template = '''project('{project_name}', 'd',
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['warning_level=3'])
 
 stlib = static_library('{lib_name}', '{source_file}',

mesonbuild/templates/fortrantemplates.py

@@ -39,6 +39,7 @@ end program
 
 lib_fortran_meson_template = '''project('{project_name}', 'fortran',
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['warning_level=3'])
 
 # These arguments are only used to build the shared library
@@ -83,6 +84,7 @@ end program
 
 hello_fortran_meson_template = '''project('{project_name}', 'fortran',
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['warning_level=3'])
 
 exe = executable('{exe_name}', '{source_name}',

mesonbuild/templates/javatemplates.py

@@ -26,6 +26,7 @@ public class {class_name} {{
 
 hello_java_meson_template = '''project('{project_name}', 'java',
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['warning_level=3'])
 
 exe = jar('{exe_name}', '{source_name}',
@@ -66,6 +67,7 @@ public class {class_test} {{
 
 lib_java_meson_template = '''project('{project_name}', 'java',
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['warning_level=3'])
 
 jarlib = jar('{class_name}', '{source_file}',

mesonbuild/templates/mesontemplates.py

@@ -11,6 +11,7 @@ if T.TYPE_CHECKING:
 
 meson_executable_template = '''project('{project_name}', {language},
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : [{default_options}])
 
 executable('{executable}',
@@ -21,6 +22,7 @@ executable('{executable}',
 
 meson_jar_template = '''project('{project_name}', '{language}',
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : [{default_options}])
 
 jar('{executable}',
@@ -54,6 +56,7 @@ def create_meson_build(options: Arguments) -> None:
         content = meson_executable_template.format(project_name=options.name,
                                                    language=language,
                                                    version=options.version,
+                                                   meson_version='1.0.0',
                                                    executable=options.executable,
                                                    sourcespec=sourcespec,
                                                    depspec=depspec,
@@ -62,6 +65,7 @@ def create_meson_build(options: Arguments) -> None:
         content = meson_jar_template.format(project_name=options.name,
                                             language=options.language,
                                             version=options.version,
+                                            meson_version='1.0.0' if options.language != 'rust' else '1.3.0',
                                             executable=options.executable,
                                             main_class=options.name,
                                             sourcespec=sourcespec,

mesonbuild/templates/objcpptemplates.py

@@ -54,6 +54,7 @@ int main(int argc, char **argv) {{
 
 lib_objcpp_meson_template = '''project('{project_name}', 'objcpp',
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['warning_level=3'])
 
 # These arguments are only used to build the shared library
@@ -106,6 +107,7 @@ int main(int argc, char **argv) {{
 
 hello_objcpp_meson_template = '''project('{project_name}', 'objcpp',
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['warning_level=3'])
 
 exe = executable('{exe_name}', '{source_name}',

mesonbuild/templates/objctemplates.py

@@ -54,6 +54,7 @@ int main(int argc, char **argv) {{
 
 lib_objc_meson_template = '''project('{project_name}', 'objc',
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['warning_level=3'])
 
 # These arguments are only used to build the shared library
@@ -106,6 +107,7 @@ int main(int argc, char **argv) {{
 
 hello_objc_meson_template = '''project('{project_name}', 'objc',
   version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['warning_level=3'])
 
 exe = executable('{exe_name}', '{source_name}',

mesonbuild/templates/rusttemplates.py

@@ -8,6 +8,9 @@ import typing as T
 
 from mesonbuild.templates.sampleimpl import FileImpl
 
+if T.TYPE_CHECKING:
+    from ..minit import Arguments
+
 
 lib_rust_template = '''#![crate_name = "{crate_file}"]
 
@@ -35,7 +38,8 @@ mod tests {{
 
 
 lib_rust_meson_template = '''project('{project_name}', 'rust',
-  version : '{version}', meson_version: '>=1.3.0',
+  version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['rust_std=2021', 'warning_level=3'])
 
 rust = import('rust')
@@ -58,7 +62,8 @@ fn main() {{
 '''
 
 hello_rust_meson_template = '''project('{project_name}', 'rust',
-  version : '{version}', meson_version: '>=1.3.0',
+  version : '{version}',
+  meson_version : '>= {meson_version}',
   default_options : ['rust_std=2021', 'warning_level=3'])
 
 exe = executable('{exe_name}', '{source_name}',
@@ -77,6 +82,10 @@ class RustProject(FileImpl):
     lib_test_template = None
     lib_meson_template = lib_rust_meson_template
 
+    def __init__(self, args: Arguments):
+        super().__init__(args)
+        self.meson_version = '1.3.0'
+
     def lib_kwargs(self) -> T.Dict[str, str]:
         kwargs = super().lib_kwargs()
         kwargs['crate_file'] = self.lowercase_token

mesonbuild/templates/sampleimpl.py

@@ -20,6 +20,7 @@ class SampleImpl(metaclass=abc.ABCMeta):
         self.lowercase_token = re.sub(r'[^a-z0-9]', '_', self.name.lower())
         self.uppercase_token = self.lowercase_token.upper()
         self.capitalized_token = self.lowercase_token.capitalize()
+        self.meson_version = '1.0.0'
 
     @abc.abstractmethod
     def create_executable(self) -> None:
@@ -67,7 +68,8 @@ class ClassImpl(SampleImpl):
             f.write(self.exe_meson_template.format(project_name=self.name,
                                                    exe_name=self.name,
                                                    source_name=source_name,
-                                                   version=self.version))
+                                                   version=self.version,
+                                                   meson_version=self.meson_version))
 
     def create_library(self) -> None:
         lib_name = f'{self.capitalized_token}.{self.source_ext}'
@@ -83,6 +85,7 @@ class ClassImpl(SampleImpl):
                   'lib_name': self.lowercase_token,
                   'test_name': self.lowercase_token,
                   'version': self.version,
+                  'meson_version': self.meson_version,
                   }
         with open(lib_name, 'w', encoding='utf-8') as f:
             f.write(self.lib_template.format(**kwargs))
@@ -105,7 +108,8 @@ class FileImpl(SampleImpl):
             f.write(self.exe_meson_template.format(project_name=self.name,
                                                    exe_name=self.name,
                                                    source_name=source_name,
-                                                   version=self.version))
+                                                   version=self.version,
+                                                   meson_version=self.meson_version))
 
     def lib_kwargs(self) -> T.Dict[str, str]:
         """Get Language specific keyword arguments
@@ -126,6 +130,7 @@ class FileImpl(SampleImpl):
             'lib_name': self.lowercase_token,
             'test_name': self.lowercase_token,
             'version': self.version,
+            'meson_version': self.meson_version,
         }
 
     def create_library(self) -> None:

mesonbuild/templates/valatemplates.py

@@ -13,6 +13,7 @@ hello_vala_template = '''void main (string[] args) {{
 '''
 
 hello_vala_meson_template = '''project('{project_name}', ['c', 'vala'],
+  meson_version : '>= {meson_version}',
   version : '{version}')
 
 dependencies = [
@@ -48,6 +49,7 @@ public void main() {{
 '''
 
 lib_vala_meson_template = '''project('{project_name}', ['c', 'vala'],
+  meson_version : '>= {meson_version}',
   version : '{version}')
 
 dependencies = [