1 files changed, 145 insertions, 0 deletions
diff --git a/mesonbuild/templates/dlangtemplates.py b/mesonbuild/templates/dlangtemplates.py
new file mode 100644
index 0000000..81840fe
--- /dev/null
+++ b/mesonbuild/templates/dlangtemplates.py
@@ -0,0 +1,145 @@
+# 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.
+from __future__ import annotations
+
+from mesonbuild.templates.sampleimpl import SampleImpl
+import re
+
+
+hello_d_template = '''module main;
+import std.stdio;
+
+enum PROJECT_NAME = "{project_name}";
+
+int main(string[] args) {{
+    if (args.length != 1){{
+        writefln("%s takes no arguments.\\n", args[0]);
+        return 1;
+    }}
+    writefln("This is project %s.\\n", PROJECT_NAME);
+    return 0;
+}}
+'''
+
+hello_d_meson_template = '''project('{project_name}', 'd',
+    version : '{version}',
+    default_options: ['warning_level=3'])
+
+exe = executable('{exe_name}', '{source_name}',
+  install : true)
+
+test('basic', exe)
+'''
+
+lib_d_template = '''module {module_file};
+
+/* This function will not be exported and is not
+ * directly callable by users of this library.
+ */
+int internal_function() {{
+    return 0;
+}}
+
+int {function_name}() {{
+    return internal_function();
+}}
+'''
+
+lib_d_test_template = '''module {module_file}_test;
+import std.stdio;
+import {module_file};
+
+
+int main(string[] args) {{
+    if (args.length != 1){{
+        writefln("%s takes no arguments.\\n", args[0]);
+        return 1;
+    }}
+    return {function_name}();
+}}
+'''
+
+lib_d_meson_template = '''project('{project_name}', 'd',
+  version : '{version}',
+  default_options : ['warning_level=3'])
+
+stlib = static_library('{lib_name}', '{source_file}',
+  install : true,
+  gnu_symbol_visibility : 'hidden',
+)
+
+test_exe = executable('{test_exe_name}', '{test_source_file}',
+  link_with : stlib)
+test('{test_name}', test_exe)
+
+# Make this library usable as a Meson subproject.
+{ltoken}_dep = declare_dependency(
+  include_directories: include_directories('.'),
+  link_with : stlib)
+
+# Make this library usable from the Dlang
+# build system.
+dlang_mod = import('dlang')
+if find_program('dub', required: false).found()
+  dlang_mod.generate_dub_file(meson.project_name().to_lower(), meson.source_root(),
+    name : meson.project_name(),
+    license: meson.project_license(),
+    sourceFiles : '{source_file}',
+    description : 'Meson sample project.',
+    version : '{version}',
+  )
+endif
+'''
+
+
+class DlangProject(SampleImpl):
+    def __init__(self, options):
+        super().__init__()
+        self.name = options.name
+        self.version = options.version
+
+    def create_executable(self) -> None:
+        lowercase_token = re.sub(r'[^a-z0-9]', '_', self.name.lower())
+        source_name = lowercase_token + '.d'
+        open(source_name, 'w', encoding='utf-8').write(hello_d_template.format(project_name=self.name))
+        open('meson.build', 'w', encoding='utf-8').write(
+            hello_d_meson_template.format(project_name=self.name,
+                                          exe_name=lowercase_token,
+                                          source_name=source_name,
+                                          version=self.version))
+
+    def create_library(self) -> None:
+        lowercase_token = re.sub(r'[^a-z0-9]', '_', self.name.lower())
+        uppercase_token = lowercase_token.upper()
+        function_name = lowercase_token[0:3] + '_func'
+        test_exe_name = lowercase_token + '_test'
+        lib_m_name = lowercase_token
+        lib_d_name = lowercase_token + '.d'
+        test_d_name = lowercase_token + '_test.d'
+        kwargs = {'utoken': uppercase_token,
+                  'ltoken': lowercase_token,
+                  'header_dir': lowercase_token,
+                  'function_name': function_name,
+                  'module_file': lib_m_name,
+                  'source_file': lib_d_name,
+                  'test_source_file': test_d_name,
+                  'test_exe_name': test_exe_name,
+                  'project_name': self.name,
+                  'lib_name': lowercase_token,
+                  'test_name': lowercase_token,
+                  'version': self.version,
+                  }
+        open(lib_d_name, 'w', encoding='utf-8').write(lib_d_template.format(**kwargs))
+        open(test_d_name, 'w', encoding='utf-8').write(lib_d_test_template.format(**kwargs))
+        open('meson.build', 'w', encoding='utf-8').write(lib_d_meson_template.format(**kwargs))