cmake_command: Add command to INVOKE other commands by name

Fixes: #18392

4 files changed, 71 insertions, 0 deletions

diff --git a/Source/CMakeLists.txt b/Source/CMakeLists.txt
index c57f713..24370aa 100644
--- a/Source/CMakeLists.txt
+++ b/Source/CMakeLists.txt
@@ -484,6 +484,8 @@ set(SRCS
   cmBuildCommand.h
   cmBuildNameCommand.cxx
   cmBuildNameCommand.h
+  cmCMakeCommand.cxx
+  cmCMakeCommand.h
   cmCMakeHostSystemInformationCommand.cxx
   cmCMakeHostSystemInformationCommand.h
   cmCMakeMinimumRequired.cxx
diff --git a/Source/cmCMakeCommand.cxx b/Source/cmCMakeCommand.cxx
new file mode 100644
index 0000000..5699086
--- /dev/null
+++ b/Source/cmCMakeCommand.cxx
@@ -0,0 +1,47 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#include "cmCMakeCommand.h"
+
+#include <cstddef>
+
+#include "cmExecutionStatus.h"
+#include "cmListFileCache.h"
+#include "cmMakefile.h"
+
+bool cmCMakeCommand(std::vector<std::string> const& args,
+                    cmExecutionStatus& status)
+{
+  if (args.empty()) {
+    status.SetError("called with incorrect number of arguments");
+    return false;
+  }
+
+  cmMakefile& makefile = status.GetMakefile();
+  cmListFileContext context = makefile.GetExecutionContext();
+
+  if (args[0] == "INVOKE") {
+    if (args.size() == 1) {
+      status.SetError("called with incorrect number of arguments");
+      return false;
+    }
+
+    // First argument is the name of the function to call
+    cmListFileFunction func;
+    func.Name = args[1];
+    func.Line = context.Line;
+
+    // The rest of the arguments are passed to the function call above
+    func.Arguments.resize(args.size() - 1);
+    for (size_t i = 2; i < args.size(); ++i) {
+      cmListFileArgument lfarg;
+      lfarg.Line = context.Line;
+      lfarg.Value = args[i];
+      func.Arguments.emplace_back(lfarg);
+    }
+
+    return makefile.ExecuteCommand(func, status);
+  }
+
+  status.SetError("called with unknown meta-operation");
+  return false;
+}
diff --git a/Source/cmCMakeCommand.h b/Source/cmCMakeCommand.h
new file mode 100644
index 0000000..cf9f4c3
--- /dev/null
+++ b/Source/cmCMakeCommand.h
@@ -0,0 +1,20 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#ifndef cmCMakeCommand_h
+#define cmCMakeCommand_h
+
+#include "cmConfigure.h" // IWYU pragma: keep
+
+#include <string>
+#include <vector>
+
+class cmExecutionStatus;
+
+/**
+ * \brief Calls a scripted or build-in command
+ *
+ */
+bool cmCMakeCommand(std::vector<std::string> const& args,
+                    cmExecutionStatus& status);
+
+#endif
diff --git a/Source/cmCommands.cxx b/Source/cmCommands.cxx
index 896b6a9..28b4267 100644
--- a/Source/cmCommands.cxx
+++ b/Source/cmCommands.cxx
@@ -91,6 +91,7 @@
 #  include "cmAddLinkOptionsCommand.h"
 #  include "cmAuxSourceDirectoryCommand.h"
 #  include "cmBuildNameCommand.h"
+#  include "cmCMakeCommand.h"
 #  include "cmCMakeHostSystemInformationCommand.h"
 #  include "cmExportCommand.h"
 #  include "cmExportLibraryDependenciesCommand.h"
@@ -196,6 +197,7 @@ void GetScriptingCommands(cmState* state)
     "match the opening WHILE command.");
 
 #if !defined(CMAKE_BOOTSTRAP)
+  state->AddBuiltinCommand("cmake_command", cmCMakeCommand);
   state->AddBuiltinCommand("cmake_host_system_information",
                            cmCMakeHostSystemInformationCommand);
   state->AddBuiltinCommand("load_cache", cmLoadCacheCommand);