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

13 files changed, 42 insertions, 4 deletions

diff --git a/mesonbuild/templates/cpptemplates.py b/mesonbuild/templates/cpptemplates.py
index 1975a76f0..f21729982 100644
--- a/mesonbuild/templates/cpptemplates.py
+++ b/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
diff --git a/mesonbuild/templates/cstemplates.py b/mesonbuild/templates/cstemplates.py
index 8522d54ee..4dbb39863 100644
--- a/mesonbuild/templates/cstemplates.py
+++ b/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}',
diff --git a/mesonbuild/templates/ctemplates.py b/mesonbuild/templates/ctemplates.py
index d150fe52d..a879b9ac5 100644
--- a/mesonbuild/templates/ctemplates.py
+++ b/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'])
 
diff --git a/mesonbuild/templates/cudatemplates.py b/mesonbuild/templates/cudatemplates.py
index 7c42d342f..c79150e81 100644
--- a/mesonbuild/templates/cudatemplates.py
+++ b/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
diff --git a/mesonbuild/templates/dlangtemplates.py b/mesonbuild/templates/dlangtemplates.py
index fdae841b2..eb102aede 100644
--- a/mesonbuild/templates/dlangtemplates.py
+++ b/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}',
diff --git a/mesonbuild/templates/fortrantemplates.py b/mesonbuild/templates/fortrantemplates.py
index 2ea54628f..6e3383653 100644
--- a/mesonbuild/templates/fortrantemplates.py
+++ b/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}',
diff --git a/mesonbuild/templates/javatemplates.py b/mesonbuild/templates/javatemplates.py
index e55c5fa3a..caaa98920 100644
--- a/mesonbuild/templates/javatemplates.py
+++ b/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}',
diff --git a/mesonbuild/templates/mesontemplates.py b/mesonbuild/templates/mesontemplates.py
index caea28bd6..e0f6ca3fb 100644
--- a/mesonbuild/templates/mesontemplates.py
+++ b/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,
diff --git a/mesonbuild/templates/objcpptemplates.py b/mesonbuild/templates/objcpptemplates.py
index 85794a5c4..91ce177c3 100644
--- a/mesonbuild/templates/objcpptemplates.py
+++ b/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}',
diff --git a/mesonbuild/templates/objctemplates.py b/mesonbuild/templates/objctemplates.py
index b96949968..59a6cd88b 100644
--- a/mesonbuild/templates/objctemplates.py
+++ b/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}',
diff --git a/mesonbuild/templates/rusttemplates.py b/mesonbuild/templates/rusttemplates.py
index 8e9d5b88d..83d8d4f95 100644
--- a/mesonbuild/templates/rusttemplates.py
+++ b/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
diff --git a/mesonbuild/templates/sampleimpl.py b/mesonbuild/templates/sampleimpl.py
index 14b0460d7..b6c389565 100644
--- a/mesonbuild/templates/sampleimpl.py
+++ b/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:
diff --git a/mesonbuild/templates/valatemplates.py b/mesonbuild/templates/valatemplates.py
index f577880d4..fd93ffaf4 100644
--- a/mesonbuild/templates/valatemplates.py
+++ b/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 = [