feat: Generate platform-specific shared library boilerplate in source files and improve code formatting.

src/main.rs

@@ -1,4 +1,4 @@
-use anyhow::{anyhow, Context, Result};
+use anyhow::{Context, Result, anyhow};
 use clap::{Parser, ValueEnum};
 use inquire::{Confirm, Select, Text};
 use regex::Regex;
@@ -85,7 +85,11 @@ fn generate_cmakelists(
 ) -> String {
     let mut lines = vec![
         "cmake_minimum_required(VERSION 3.20)".to_string(),
-        format!("project({} LANGUAGES {})", project_name, get_lang_cmake(lang)),
+        format!(
+            "project({} LANGUAGES {})",
+            project_name,
+            get_lang_cmake(lang)
+        ),
         "".to_string(),
     ];
 
@@ -110,24 +114,27 @@ fn generate_cmakelists(
     let ext = get_lang_ext(lang);
     match project_type {
         ProjectType::Exe => {
-            lines.push(format!(
-                "add_executable({} src/main.{})",
-                project_name, ext,
-            ));
+            lines.push(format!("add_executable({} src/main.{})", project_name, ext,));
         }
         ProjectType::StaticLib => {
             lines.push(format!(
                 "add_library({} STATIC src/main.{})",
                 project_name, ext,
             ));
-            lines.push(format!("target_include_directories({} PUBLIC include)", project_name));
+            lines.push(format!(
+                "target_include_directories({} PUBLIC include)",
+                project_name
+            ));
         }
         ProjectType::SharedLib => {
             lines.push(format!(
                 "add_library({} SHARED src/main.{})",
                 project_name, ext,
             ));
-            lines.push(format!("target_include_directories({} PUBLIC include)", project_name));
+            lines.push(format!(
+                "target_include_directories({} PUBLIC include)",
+                project_name
+            ));
             lines.push(format!(
                 "target_compile_definitions({} PUBLIC {}_EXPORTS)",
                 project_name,
@@ -137,23 +144,67 @@ fn generate_cmakelists(
     }
 
     // 添加导出设置（仅库类型）
-    if matches!(project_type, ProjectType::StaticLib | ProjectType::SharedLib) {
+    if matches!(
+        project_type,
+        ProjectType::StaticLib | ProjectType::SharedLib
+    ) {
         lines.push("".to_string());
         lines.push("# Export targets".to_string());
         lines.push("include(GNUInstallDirs)".to_string());
-        lines.push(format!(
-            "install(TARGETS {} DESTINATION lib)",
-            project_name
-        ));
-        lines.push(
-            "install(DIRECTORY include/ DESTINATION include)".to_string(),
-        );
+        lines.push(format!("install(TARGETS {} DESTINATION lib)", project_name));
+        lines.push("install(DIRECTORY include/ DESTINATION include)".to_string());
     }
 
     lines.join("\n")
 }
 
-fn generate_source_file(lang: &Lang) -> String {
+fn generate_source_file(lang: &Lang, project_type: &ProjectType) -> String {
+    match project_type {
+        ProjectType::SharedLib => {
+            match lang {
+                Lang::C => {
+                    r#"#ifdef _WIN32
+#include <windows.h>
+
+BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved)
+{
+    switch (ul_reason_for_call)
+    {
+    case DLL_PROCESS_ATTACH:
+    case DLL_THREAD_ATTACH:
+    case DLL_THREAD_DETACH:
+    case DLL_PROCESS_DETACH:
+        break;
+    }
+    return TRUE;
+}
+#else
+// Non-Windows platforms
+void __attribute__((constructor)) lib_init(void) {}
+void __attribute__((destructor)) lib_fini(void) {}
+#endif"#
+                        .to_string()
+                }
+                Lang::Cpp => {
+                    r#"#include <windows.h>
+
+BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved)
+{
+    switch (ul_reason_for_call)
+    {
+    case DLL_PROCESS_ATTACH:
+    case DLL_THREAD_ATTACH:
+    case DLL_THREAD_DETACH:
+    case DLL_PROCESS_DETACH:
+        break;
+    }
+    return TRUE;
+}"#
+                    .to_string()
+                }
+            }
+        }
+        _ => {
             match lang {
                 Lang::C => {
                     "#include <stdio.h>\n\nint main() {\n    printf(\"Hello, World!\\n\");\n    return 0;\n}"
@@ -165,6 +216,8 @@ fn generate_source_file(lang: &Lang) -> String {
                 }
             }
         }
+    }
+}
 
 fn sanitize_folder_name(name: &str) -> String {
     let re = Regex::new(r"[^a-zA-Z0-9_-]").unwrap();
@@ -257,7 +310,10 @@ fn create_project(
 
     // 创建目录结构
     fs::create_dir_all(output_dir.join("src"))?;
-    if matches!(project_type, ProjectType::StaticLib | ProjectType::SharedLib) {
+    if matches!(
+        project_type,
+        ProjectType::StaticLib | ProjectType::SharedLib
+    ) {
         fs::create_dir_all(output_dir.join("include"))?;
     }
 
@@ -272,12 +328,15 @@ fn create_project(
     let ext = get_lang_ext(lang);
     fs::write(
         output_dir.join("src").join(format!("main.{}", ext)),
-        generate_source_file(lang),
+        generate_source_file(lang, project_type),
     )
     .with_context(|| "写入源文件失败")?;
 
     // 为库类型创建 README.md
-    if matches!(project_type, ProjectType::StaticLib | ProjectType::SharedLib) {
+    if matches!(
+        project_type,
+        ProjectType::StaticLib | ProjectType::SharedLib
+    ) {
         let readme_content = format!(
             "# {}\n\nA CMake library project.\n\n## Build\n\n```bash\nmkdir build && cd build\ncmake ..\nmake\n```\n\n## Install\n\n```bash\ncmake --install .\n```\n",
             project_name
@@ -306,7 +365,14 @@ fn main() -> Result<()> {
         let (name, lang, project_type, cxx_standard) = interactive_mode()?;
         let folder_name = sanitize_folder_name(&name);
         let output_path = Path::new(".").join(&folder_name);
-        create_project(&name, &lang, &project_type, &cxx_standard, &output_path, args.force)?;
+        create_project(
+            &name,
+            &lang,
+            &project_type,
+            &cxx_standard,
+            &output_path,
+            args.force,
+        )?;
         return Ok(());
     }
 
@@ -323,7 +389,14 @@ fn main() -> Result<()> {
         Path::new(".").join(&folder_name)
     };
 
-    create_project(&name, &lang, &project_type, &cxx_standard, &output_path, args.force)?;
+    create_project(
+        &name,
+        &lang,
+        &project_type,
+        &cxx_standard,
+        &output_path,
+        args.force,
+    )?;
 
     Ok(())
 }