Add metacg-config tool

.github/workflows/mcg-ci.yml

@@ -45,7 +45,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: cmake
-      run: cmake -DCMAKE_POLICY_VERSION_MINIMUM=3.5 -B build -S .
+      run: cmake -DCMAKE_POLICY_VERSION_MINIMUM=3.5 -DCMAKE_INSTALL_PREFIX="$(pwd)/install" -B build -S .
     - name: build
       run: cmake --build build --parallel
     - name: install
@@ -58,6 +58,12 @@ jobs:
       run: |
         CMAKE_PREFIX_PATH=install/lib/cmake/metacg cmake -S graph/test/install -B build-install-test
         cmake --build build-install-test
+    - name: metacg-config-test
+      run: |
+        MCG_CFG=install/bin/metacg-config
+        stat $MCG_CFG
+        [[ "$($MCG_CFG --prefix)" == "$(cd install; pwd)" ]] || exit 1
+        [[ "$($MCG_CFG --revision)" == "$(git rev-parse HEAD)" ]] || exit 1
 
   build-container:
     runs-on: ubuntu-latest

CMakeLists.txt

@@ -191,3 +191,5 @@ option(
 if(METACG_BUILD_PYMETACG)
   add_subdirectory(pymetacg)
 endif()
+
+add_subdirectory(utils)

cmake/ToolchainOptions.cmake

@@ -1,12 +1,6 @@
 include(json)
 include(spdlog)
-
-if(METACG_BUILD_GRAPH_TOOLS
-   OR METACG_BUILD_CGCOLLECTOR
-   OR METACG_BUILD_PGIS
-)
-  include(cxxopts-lib)
-endif()
+include(cxxopts-lib)
 
 # Internal dependencies
 function(add_metacg target)

graph/test/integration/TargetCollector/TestRunner.sh

@@ -27,7 +27,7 @@ done
 echo "Running integration test for TargetCollector script"
 
 echo "{}" > src/wholeProgramCG-${CI_CONCURRENT_ID}.ipcg
-test_command=(python3 ../../../../TargetCollector.py \
+test_command=(python3 ../../../../utils/TargetCollector.py \
      -a=".." \
      -g=both \
      -b=build-${CI_CONCURRENT_ID} \

utils/CMakeLists.txt

@@ -0,0 +1 @@
+add_subdirectory(config)

utils/config/CMakeLists.txt

@@ -0,0 +1,6 @@
+add_executable(metacg-config MCGConfig.cpp)
+add_config_include(metacg-config)
+target_compile_definitions(metacg-config PRIVATE INSTALL_PREFIX="${CMAKE_INSTALL_PREFIX}")
+add_cxxopts(metacg-config)
+
+install(TARGETS metacg-config DESTINATION ${CMAKE_INSTALL_BINDIR})

utils/config/MCGConfig.cpp

@@ -0,0 +1,50 @@
+/**
+ * File: MCGConfig.cpp
+ * License: Part of the MetaCG project. Licensed under BSD 3 clause license. See LICENSE.txt file at
+ * https://github.com/tudasc/metacg/LICENSE.txt
+ */
+#include "config.h"
+
+#include <iostream>
+
+#include "cxxopts.hpp"
+
+int main(int argc, char** argv) {
+  cxxopts::Options options("metacg-config", "MetaCG configuration tool");
+  options.add_options("commands")("v,version", "Prints the version of this MetaCG installation")(
+      "revision", "Prints the revision hash of this MetaCG installation")(
+      "prefix", "Prints the installation prefix of this MetaCG installation.")("h,help", "Print help");
+
+  const cxxopts::ParseResult result = options.parse(argc, argv);
+
+  if (result.contains("help")) {
+    std::cout << options.help() << std::endl;
+    return EXIT_SUCCESS;
+  }
+
+  // Exactly one of these is allowed at the same time
+  int optCount = result.count("version") + result.count("revision") + result.count("prefix");
+  if (optCount == 0) {
+    std::cerr << "Error: No command specified.\n";
+    return EXIT_FAILURE;
+  } else if (optCount > 1) {
+    std::cerr << "Warning: Multiple mutually exclusive commands specified. Only one of them will be processed.\n";
+  }
+
+  if (result.contains("version")) {
+    std::cout << MetaCG_VERSION_MAJOR << "." << MetaCG_VERSION_MINOR;
+    return EXIT_SUCCESS;
+  }
+
+  if (result.contains("revision")) {
+    std::cout << MetaCG_GIT_SHA;
+    return EXIT_SUCCESS;
+  }
+
+  if (result.contains("prefix")) {
+    std::cout << INSTALL_PREFIX;
+    return EXIT_SUCCESS;
+  }
+
+  return EXIT_SUCCESS;
+}