add clean command

README.md

@@ -90,6 +90,7 @@ arguments:
     init     [exe|shared|static]    Starts a new project in the same directory.
     gen                             Generates CMakeLists.txt file.
     build    <extra cmake args>     Run cmake and build.
+    clean                           Clean the build directory.
     help                            Show help.
     version                         Current cmkr version.
 ```

include/build.h

@@ -6,12 +6,16 @@ namespace cmkr::build {
 
 int run(int argc, char **argv);
 
+int clean();
+
 } // namespace cmkr::build
 extern "C" {
 #endif
 
 int cmkr_build_run(int argc, char **argv);
 
+int cmkr_build_clean(void);
+
 #ifdef __cplusplus
 }
 #endif

src/args.cpp

@@ -39,6 +39,11 @@ const char *handle_args(int argc, char **argv) {
         if (ret)
             return "CMake build error!";
         return "CMake run completed!";
+    } else if (main_arg == "clean") {
+        auto ret = build::clean();
+        if (ret)
+            return "CMake clean error!";
+        return "CMake run completed!";
     } else {
         return "Unknown argument!";
     }

src/build.cpp

@@ -10,6 +10,8 @@
 #include <stdlib.h>
 #include <system_error>
 
+namespace fs = std::filesystem;
+
 namespace cmkr::build {
 
 int run(int argc, char **argv) {
@@ -21,7 +23,7 @@ int run(int argc, char **argv) {
     }
     std::stringstream ss;
 
-    if (!std::filesystem::exists("CMakeLists.txt"))
+    if (!fs::exists("CMakeLists.txt"))
         if (gen::generate_cmake("."))
             throw std::runtime_error("CMake generation failure!");
 
@@ -45,6 +47,16 @@ int run(int argc, char **argv) {
     return ::system(ss.str().c_str());
 }
 
+int clean() {
+    int ret = 0;
+    cmake::CMake cmake(".", true);
+    if (fs::exists(cmake.bin_dir)) {
+        ret = fs::remove_all(cmake.bin_dir);
+        fs::create_directory(cmake.bin_dir);
+    }
+    return ret;
+}
+
 } // namespace cmkr::build
 
 int cmkr_build_run(int argc, char **argv) {
@@ -55,4 +67,14 @@ int cmkr_build_run(int argc, char **argv) {
     } catch (...) {
         return cmkr::error::Status(cmkr::error::Status::Code::BuildError);
     }
+}
+
+int cmkr_build_clean(void) {
+    try {
+        return cmkr::build::clean();
+    } catch (const std::system_error &e) {
+        return e.code().value();
+    } catch (...) {
+        return cmkr::error::Status(cmkr::error::Status::Code::BuildError);
+    }
 }

src/help.cpp

@@ -11,6 +11,7 @@ arguments:
     init     [exe|shared|static]    Starts a new project in the same directory.
     gen                             Generates CMakeLists.txt file.
     build    <extra cmake args>     Run cmake and build.
+    clean                           Clean the build directory.
     help                            Show help.
     version                         Current cmkr version.
             )lit";