Added automatic executable version updates

src/main.cc

@@ -21,8 +21,8 @@
 #include "include_diagram/generators/plantuml/include_diagram_generator.h"
 #include "package_diagram/generators/plantuml/package_diagram_generator.h"
 #include "sequence_diagram/generators/plantuml/sequence_diagram_generator.h"
-
 #include "util/util.h"
+#include "version.h"
 
 #include <cli11/CLI11.hpp>
 #include <cppast/libclang_parser.hpp>
@@ -38,6 +38,8 @@
 using namespace clanguml;
 using config::config;
 
+void print_version();
+
 void print_diagrams_list(const clanguml::config::config &cfg);
 
 bool check_output_directory(const std::string &dir);
@@ -55,6 +57,7 @@ int main(int argc, const char *argv[])
     std::vector<std::string> diagram_names{};
     std::optional<std::string> output_directory;
     unsigned int thread_count{0};
+    bool show_version{false};
     bool verbose{false};
     bool list_diagrams{false};
 
@@ -68,12 +71,18 @@ int main(int argc, const char *argv[])
         "Override output directory specified in config file");
     app.add_option("-t,--thread-count", thread_count,
         "Thread pool size (0 = hardware concurrency)");
+    app.add_flag("-V,--version", show_version, "Print version and exit");
     app.add_flag("-v,--verbose", verbose, "Verbose logging");
     app.add_flag("-l,--list-diagrams", list_diagrams,
         "Print list of diagrams defined in the config file");
 
     CLI11_PARSE(app, argc, argv);
 
+    if (show_version) {
+        print_version();
+        return 0;
+    }
+
     clanguml::util::setup_logging(verbose);
 
     clanguml::config::config config;
@@ -223,6 +232,15 @@ bool check_output_directory(const std::string &dir)
     return true;
 }
 
+void print_version()
+{
+    std::cout << "clang-uml " << clanguml::version::CLANG_UML_VERSION << '\n';
+    std::cout << "Copyright (C) 2021-2022 Bartek Kryza <bkryza@gmail.com>"
+              << '\n';
+    std::cout << "Built with libclang: "
+              << clanguml::version::CLANG_UML_LIBCLANG_VERSION << std::endl;
+}
+
 void print_diagrams_list(const clanguml::config::config &cfg)
 {
     using std::cout;

src/version.h.in

@@ -0,0 +1,23 @@
+/**
+ * src/version.h
+ *
+ * Copyright (c) 2021-2022 Bartek Kryza <bkryza@gmail.com>
+ *
+ * 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.
+ */
+#pragma once
+
+namespace clanguml::version {
+static constexpr auto CLANG_UML_VERSION = "@GIT_VERSION@";
+static constexpr auto CLANG_UML_LIBCLANG_VERSION = "@LIBCLANG_VERSION_STRING@";
+} // namespace clanguml::version