Add cmake-config command to mob.

src/cmd/cmake_config.cpp

@@ -0,0 +1,43 @@
+#include "pch.h"
+
+#include "../core/conf.h"
+#include "../tasks/tasks.h"
+
+#include "commands.h"
+
+namespace mob {
+
+    cmake_config_command::cmake_config_command() : command(requires_options) {}
+
+    command::meta_t cmake_config_command::meta() const
+    {
+        return {"cmake-config", "print CMake configuration variables"};
+    }
+
+    clipp::group cmake_config_command::do_group()
+    {
+        return clipp::group(
+            clipp::command("cmake-config").set(picked_),
+            (clipp::option("-h", "--help") >> help_) % ("shows this message"),
+            clipp::command("prefix-path").set(var_, variable::prefix_path) |
+                clipp::command("install-prefix").set(var_, variable::install_prefix));
+    }
+
+    std::string cmake_config_command::do_doc()
+    {
+        return "Print CMake variables to be used when configuring projects.\n";
+    }
+
+    int cmake_config_command::do_run()
+    {
+        switch (var_) {
+        case variable::prefix_path:
+            u8cerr << tasks::modorganizer::cmake_prefix_path();
+            break;
+        case variable::install_prefix:
+            u8cout << conf().path().install().string();
+            break;
+        }
+        return 0;
+    }
+}  // namespace mob

src/cmd/commands.h

@@ -406,4 +406,20 @@ namespace mob {
         void do_build();
     };
 
+    // print CMake configuration variables
+    //
+    class cmake_config_command : public command {
+    public:
+        cmake_config_command();
+        meta_t meta() const override;
+
+    protected:
+        clipp::group do_group() override;
+        int do_run() override;
+        std::string do_doc() override;
+
+        enum class variable { prefix_path, install_prefix };
+        variable var_;
+    };
+
 }  // namespace mob

src/main.cpp

@@ -129,7 +129,8 @@ namespace mob {
             std::make_unique<release_command>(),
             std::make_unique<git_command>(),
             std::make_unique<inis_command>(),
-            std::make_unique<tx_command>()};
+            std::make_unique<tx_command>(),
+            std::make_unique<cmake_config_command>()};
 
         // commands are shown in the help
         help->set_commands(commands);

src/tasks/modorganizer.cpp

@@ -3,15 +3,6 @@
 
 namespace mob::tasks {
 
-    // build CMAKE_PREFIX_PATH for MO2 tasks
-    //
-    std::string cmake_prefix_path()
-    {
-        return conf().path().qt_install().string() + ";" +
-               (modorganizer::super_path() / "cmake_common").string() + ";" +
-               (conf().path().install() / "lib" / "cmake").string();
-    }
-
     // given a vector of names (some projects have more than one, see add_tasks() in
     // main.cpp), this prepends the simplified name to the vector and returns it
     //
@@ -89,6 +80,13 @@ namespace mob::tasks {
         }
     }
 
+    std::string modorganizer::cmake_prefix_path()
+    {
+        return conf().path().qt_install().string() + ";" +
+               (modorganizer::super_path() / "cmake_common").string() + ";" +
+               (conf().path().install() / "lib" / "cmake").string();
+    }
+
     fs::path modorganizer::source_path() const
     {
         // something like build/modorganizer_super/uibase

src/tasks/tasks.h

@@ -205,6 +205,10 @@ namespace mob::tasks {
     //
     class modorganizer : public task {
     public:
+        // build CMAKE_PREFIX_PATH for MO2 tasks
+        //
+        static std::string cmake_prefix_path();
+
         // path of the root modorganizer_super directory
         //
         static fs::path super_path();