refactor: generator reports time

Author: alandefreitas

src/lib/Lib/CorpusImpl.cpp

@@ -15,6 +15,7 @@
 #include "lib/Metadata/Finalize.hpp"
 #include "lib/Lib/Lookup.hpp"
 #include "lib/Support/Error.hpp"
+#include "lib/Support/Chrono.hpp"
 #include <mrdocs/Metadata.hpp>
 #include <mrdocs/Support/Error.hpp>
 #include <llvm/ADT/STLExtras.h>
@@ -78,26 +79,6 @@ find(
 
 //------------------------------------------------
 
-namespace {
-template <class Rep, class Period>
-std::string
-format_duration(
-    std::chrono::duration<Rep, Period> delta)
-{
-    auto delta_ms = std::chrono::duration_cast<
-        std::chrono::milliseconds>(delta).count();
-    if (delta_ms < 1000)
-    {
-        return fmt::format("{} ms", delta_ms);
-    }
-    else
-    {
-        double const delta_s = static_cast<double>(delta_ms) / 1000.0;
-        return fmt::format("{:.02f} s", delta_s);
-    }
-}
-}
-
 mrdocs::Expected<std::unique_ptr<Corpus>>
 CorpusImpl::
 build(

src/lib/Support/Chrono.hpp

@@ -0,0 +1,44 @@
+//
+// Licensed under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+// Copyright (c) 2023 Vinnie Falco (vinnie.falco@gmail.com)
+// Copyright (c) 2023 Krystian Stasiowski (sdkrystian@gmail.com)
+// Copyright (c) 2024 Alan de Freitas (alandefreitas@gmail.com)
+//
+// Official repository: https://github.com/cppalliance/mrdocs
+//
+
+#ifndef MRDOCS_LIB_SUPPORT_CHRONO_HPP
+#define MRDOCS_LIB_SUPPORT_CHRONO_HPP
+
+#include <chrono>
+#include <string>
+#include <fmt/format.h>
+
+namespace clang {
+namespace mrdocs {
+
+template <class Rep, class Period>
+std::string
+format_duration(
+    std::chrono::duration<Rep, Period> delta)
+{
+    auto delta_ms = std::chrono::duration_cast<
+                        std::chrono::milliseconds>(delta).count();
+    if (delta_ms < 1000)
+    {
+        return fmt::format("{} ms", delta_ms);
+    }
+    else
+    {
+        double const delta_s = static_cast<double>(delta_ms) / 1000.0;
+        return fmt::format("{:.02f} s", delta_s);
+    }
+}
+
+} // mrdocs
+} // clang
+
+#endif

src/lib/Support/Generator.cpp

@@ -11,6 +11,7 @@
 
 #include "lib/AST/ParseJavadoc.hpp"
 #include "lib/Support/Path.hpp"
+#include "lib/Support/Chrono.hpp"
 #include <mrdocs/Support/Error.hpp>
 #include <mrdocs/Generator.hpp>
 #include <llvm/ADT/SmallString.h>
@@ -58,11 +59,20 @@ Error
 Generator::
 build(Corpus const& corpus) const
 {
+    using clock_type = std::chrono::steady_clock;
+    auto start_time = clock_type::now();
     std::string absOutput = files::normalizePath(
         files::makeAbsolute(
             corpus.config->output,
             corpus.config->configDir));
-    return build(absOutput, corpus);
+    auto err = build(absOutput, corpus);
+    if (!err.failed())
+    {
+        report::info(
+            "Generated documentation in {}",
+            format_duration(clock_type::now() - start_time));
+    }
+    return err;
 }
 
 Error