[M4] add cargoxx run/test/clean

src/cli/cmd_test.cpp

@@ -0,0 +1,36 @@
+module cargoxx.cli;
+
+import std;
+import cargoxx.util;
+import cargoxx.exec;
+
+namespace cargoxx::cli {
+
+namespace fs = std::filesystem;
+
+auto cmd_test(const fs::path& project_root, bool release,
+              std::optional<fs::path> overlay_path) -> util::Result<int> {
+    if (auto r = cmd_build(project_root, false, release, std::nullopt, std::move(overlay_path));
+        !r) {
+        return std::unexpected(r.error());
+    }
+
+    const std::string profile = release ? "release" : "debug";
+    const auto build_dir = std::format("build/{}", profile);
+
+    auto r = exec::run("nix",
+                       {"develop", "--command", "ctest", "--test-dir", build_dir,
+                        "--output-on-failure"},
+                       exec::ExecOptions{
+                           .cwd = project_root,
+                           .env_overrides = {},
+                           .timeout = std::nullopt,
+                           .inherit_stdio = true,
+                       });
+    if (!r) {
+        return std::unexpected(r.error());
+    }
+    return r->exit_code;
+}
+
+} // namespace cargoxx::cli