/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying

   file LICENSE.rst or https://cmake.org/licensing for details.  */

#include "cmGlobalGhsMultiGenerator.h"

#include <algorithm>

#include <functional>

#include <map>

#include <sstream>

#include <utility>

#include <cm/memory>

#include <cm/string>

#include <cm/string_view>

#include <cmext/algorithm>

#include <cmext/memory>

#include "cmCustomCommand.h"

#include "cmCustomCommandLines.h"

#include "cmDiagnostics.h"

#include "cmGeneratedFileStream.h"

#include "cmGeneratorTarget.h"

#include "cmGhsMultiGpj.h"

#include "cmList.h"

#include "cmLocalGenerator.h"

#include "cmLocalGhsMultiGenerator.h"

#include "cmMakefile.h"

#include "cmMessageType.h"

#include "cmSourceFile.h"

#include "cmState.h"

#include "cmStateTypes.h"

#include "cmStringAlgorithms.h"

#include "cmSystemTools.h"

#include "cmTarget.h"

#include "cmValue.h"

#include "cmVersion.h"

#include "cmake.h"

char const* cmGlobalGhsMultiGenerator::FILE_EXTENSION = ".gpj";

#ifdef __linux__

char const* cmGlobalGhsMultiGenerator::DEFAULT_BUILD_PROGRAM = "gbuild";

#elif defined(_WIN32)

char const* cmGlobalGhsMultiGenerator::DEFAULT_BUILD_PROGRAM = "gbuild.exe";

#endif

char const* cmGlobalGhsMultiGenerator::CHECK_BUILD_SYSTEM_TARGET =

  "RERUN_CMAKE";

cmGlobalGhsMultiGenerator::cmGlobalGhsMultiGenerator(cmake* cm)

  : cmGlobalGenerator(cm)

{

  cm->GetState()->SetGhsMultiIDE(true);

}

cmGlobalGhsMultiGenerator::~cmGlobalGhsMultiGenerator() = default;

std::unique_ptr<cmLocalGenerator>

cmGlobalGhsMultiGenerator::CreateLocalGenerator(cmMakefile* mf)

{

  return std::unique_ptr<cmLocalGenerator>(

    cm::make_unique<cmLocalGhsMultiGenerator>(this, mf));

}

cmDocumentationEntry cmGlobalGhsMultiGenerator::GetDocumentation()

{

  return {

    GetActualName(),

    "Generates Green Hills MULTI files (experimental, work-in-progress)."

  };

}

void cmGlobalGhsMultiGenerator::ComputeTargetObjectDirectory(

  cmGeneratorTarget* gt) const

{

  // Compute full path to object file directory for this target.

  std::string dir = cmStrCat(gt->GetSupportDirectory(), '/');

  gt->ObjectDirectory = dir;

}

bool cmGlobalGhsMultiGenerator::SetGeneratorToolset(std::string const& ts,

                                                    bool build, cmMakefile* mf)

{

  /* In build mode nothing to be done.

   * Toolset already determined and build tool absolute path is cached.

   */

  if (build) {

    return true;

  }

  /* Determine the absolute directory for the toolset */

  std::string tsp;

  this->GetToolset(mf, tsp, ts);

  /* no toolset was found */

  if (tsp.empty()) {

    return false;

  }

  /* set the build tool to use */

  std::string gbuild(tsp + ((tsp.back() == '/') ? "" : "/") +

                     DEFAULT_BUILD_PROGRAM);

  cmValue prevTool = mf->GetDefinition("CMAKE_MAKE_PROGRAM");

  /* check if the toolset changed from last generate */

  if (cmNonempty(prevTool) && !cmSystemTools::ComparePath(gbuild, *prevTool)) {

    std::string const& e =

      cmStrCat("toolset build tool: ", gbuild,

               "\n"

               "Does not match the previously used build tool: ",

               *prevTool,

               "\n"

               "Either remove the CMakeCache.txt file and CMakeFiles "

               "directory or choose a different binary directory.");

    mf->IssueMessage(MessageType::FATAL_ERROR, e);

    return false;

  }

  /* store the toolset that is being used for this build */

  mf->AddCacheDefinition("CMAKE_MAKE_PROGRAM", gbuild, "build program to use",

                         cmStateEnums::INTERNAL, true);

  mf->AddDefinition("CMAKE_SYSTEM_VERSION", tsp);

  return true;

}

bool cmGlobalGhsMultiGenerator::SetGeneratorPlatform(std::string const& p,

                                                     cmMakefile* mf)

{

  /* set primary target */

  cmValue t = mf->GetDefinition("GHS_PRIMARY_TARGET");

  if (t.IsOff()) {

    /* Use the value from `-A` or use `arm` */

    std::string arch = "arm";

    if (!cmIsOff(p)) {

      arch = p;

    }

    cmValue platform = mf->GetDefinition("GHS_TARGET_PLATFORM");

    std::string tgt = cmStrCat(arch, '_', platform, ".tgt");

    /* update the primary target name*/

    mf->AddDefinition("GHS_PRIMARY_TARGET", tgt);

  }

  return true;

}

void cmGlobalGhsMultiGenerator::EnableLanguage(

  std::vector<std::string> const& l, cmMakefile* mf, bool optional)

{

  mf->AddDefinition("CMAKE_SYSTEM_NAME", "GHS-MULTI");

  mf->AddDefinition("GHSMULTI", "1"); // identifier for user CMake files

  this->cmGlobalGenerator::EnableLanguage(l, mf, optional);

}

bool cmGlobalGhsMultiGenerator::FindMakeProgram(cmMakefile* /*mf*/)

{

  // The GHS generator only knows how to lookup its build tool

  // during generation of the project files, but this

  // can only be done after the toolset is specified.

  return true;

}

void cmGlobalGhsMultiGenerator::GetToolset(cmMakefile* mf, std::string& tsp,

                                           std::string const& ts)

{

  /* Determine tsp - full path of the toolset from ts (toolset hint via -T) */

  std::string root = mf->GetSafeDefinition("GHS_TOOLSET_ROOT");

  // Check if `-T` was set by user

  if (ts.empty()) {

    // Enter toolset search mode

    std::vector<std::string> output;

    // Make sure root exists...

    if (!cmSystemTools::PathExists(root)) {

      std::string msg =

        "GHS_TOOLSET_ROOT directory \"" + root + "\" does not exist.";

      mf->IssueMessage(MessageType::FATAL_ERROR, msg);

      tsp = "";

      return;

    }

    // Add a directory separator

    if (root.back() != '/') {

      root += "/";

    }

    // Get all compiler directories in toolset root

    cmSystemTools::Glob(root, "comp_[^;]+", output);

    if (output.empty()) {

      // No compiler directories found

      std::string msg =

        "No GHS toolsets found in GHS_TOOLSET_ROOT \"" + root + "\".";

      mf->IssueMessage(MessageType::FATAL_ERROR, msg);

      tsp = "";

    } else {

      // Use latest? version

      tsp = root + output.back();

    }

  } else {

    // Toolset was provided by user

    std::string tryPath;

    // NOTE: CollapseFullPath() will determine if user toolset was full path or

    //       or relative path.

    tryPath = cmSystemTools::CollapseFullPath(ts, root);

    if (!cmSystemTools::FileExists(tryPath)) {

      std::string msg = "GHS toolset \"" + tryPath + "\" does not exist.";

      mf->IssueMessage(MessageType::FATAL_ERROR, msg);

      tsp = "";

    } else {

      tsp = tryPath;

    }

  }

}

void cmGlobalGhsMultiGenerator::WriteFileHeader(std::ostream& fout)

{

  /* clang-format off */

  fout << "#!gbuild\n"

          "#\n"

          "# CMAKE generated file: DO NOT EDIT!\n"

          "# Generated by \"" << GetActualName() << "\""

          " Generator, CMake Version " << cmVersion::GetMajorVersion() << '.'

       << cmVersion::GetMinorVersion() << "\n"

          "#\n\n";

  /* clang-format on */

}

void cmGlobalGhsMultiGenerator::WriteCustomRuleBOD(std::ostream& fout)

{

  fout << "Commands {\n"

          "  Custom_Rule_Command {\n"

          "    name = \"Custom Rule Command\"\n"

          "    exec = \""

#ifdef _WIN32

          "cmd.exe"

#else

          "/bin/sh"

#endif

          "\"\n"

          "    options = {\"SpecialOptions\"}\n"

          "  }\n"

          "}\n"

          "\n\n"

          "FileTypes {\n"

          "  CmakeRule {\n"

          "    name = \"Custom Rule\"\n"

          "    action = \"&Run\"\n"

          "    extensions = {\""

#ifdef _WIN32

          "bat"

#else

          "sh"

#endif

          "\"}\n"

          "    grepable = false\n"

          "    command = \"Custom Rule Command\"\n"

          "    commandLine = \"$COMMAND "

#ifdef _WIN32

          "/c"

#endif

          " $INPUTFILE\"\n"

          "    progress = \"Processing Custom Rule\"\n"

          "    promoteToFirstPass = true\n"

          "    outputType = \"None\"\n"

          "    color = \"#800080\"\n"

          "  }\n"

          "}\n";

}

void cmGlobalGhsMultiGenerator::WriteCustomTargetBOD(std::ostream& fout)

{

  fout << "FileTypes {\n"

          "  CmakeTarget {\n"

          "    name = \"Custom Target\"\n"

          "    action = \"&Execute\"\n"

          "    grepable = false\n"

          "    outputType = \"None\"\n"

          "    color = \"#800080\"\n"

          "  }\n"

          "}\n";

}

void cmGlobalGhsMultiGenerator::WriteTopLevelProject(std::ostream& fout,

                                                     cmLocalGenerator* root)

{

  this->WriteFileHeader(fout);

  this->WriteMacros(fout, root);

  this->WriteHighLevelDirectives(fout, root);

  GhsMultiGpj::WriteGpjTag(GhsMultiGpj::PROJECT, fout);

  fout << "# Top Level Project File\n";

  // Specify BSP option if supplied by user

  // -- not all platforms require this entry in the project file

  cmValue bspName = root->GetMakefile()->GetDefinition("GHS_BSP_NAME");

  if (!bspName.IsOff()) {

    fout << "    -bsp " << *bspName << '\n';

  }

  // Specify OS DIR if supplied by user

  // -- not all platforms require this entry in the project file

  cmValue osDir = root->GetMakefile()->GetDefinition("GHS_OS_DIR");

  if (!osDir.IsOff()) {

    cmValue osDirOption =

      root->GetMakefile()->GetDefinition("GHS_OS_DIR_OPTION");

    fout << "    ";

    if (osDirOption.IsOff()) {

      fout << "";

    } else {

      fout << *osDirOption;

    }

    fout << "\"" << osDir << "\"\n";

  }

}

void cmGlobalGhsMultiGenerator::WriteSubProjects(std::ostream& fout,

                                                 bool filterPredefined)

{

  std::set<std::string> predefinedTargets;

  predefinedTargets.insert(this->GetInstallTargetName());

  predefinedTargets.insert(this->GetAllTargetName());

  predefinedTargets.insert(std::string(CHECK_BUILD_SYSTEM_TARGET));

  // All known targets

  for (cmGeneratorTarget const* target : this->ProjectTargets) {

    if (target->GetType() == cmStateEnums::INTERFACE_LIBRARY ||

        target->GetType() == cmStateEnums::MODULE_LIBRARY ||

        target->GetType() == cmStateEnums::SHARED_LIBRARY ||

        (target->GetType() == cmStateEnums::GLOBAL_TARGET &&

         target->GetName() != this->GetInstallTargetName())) {

      continue;

    }

    /* Check if the current target is a predefined CMake target */

    bool predefinedTarget =

      predefinedTargets.find(target->GetName()) != predefinedTargets.end();

    if ((filterPredefined && predefinedTarget) ||

        (!filterPredefined && !predefinedTarget)) {

      fout << target->GetName() + ".tgt" + FILE_EXTENSION << " [Project]\n";

    }

  }

}

void cmGlobalGhsMultiGenerator::WriteProjectLine(

  std::ostream& fout, cmGeneratorTarget const* target,

  std::string& rootBinaryDir)

{

  cmValue projFile = target->GetProperty("GENERATOR_FILE_NAME");

  cmValue projType = target->GetProperty("GENERATOR_FILE_NAME_EXT");

  /* If either value is not valid then this particular target is an

   * unsupported target type and should be skipped.

   */

  if (projFile && projType) {

    std::string path = cmSystemTools::RelativePath(rootBinaryDir, *projFile);

    fout << path;

    fout << ' ' << *projType << '\n';

  }

}

void cmGlobalGhsMultiGenerator::WriteTargets(cmLocalGenerator* root)

{

  std::string rootBinaryDir = root->GetCurrentBinaryDirectory();

  // All known targets

  for (cmGeneratorTarget const* target : this->ProjectTargets) {

    if (target->GetType() == cmStateEnums::INTERFACE_LIBRARY ||

        target->GetType() == cmStateEnums::MODULE_LIBRARY ||

        target->GetType() == cmStateEnums::SHARED_LIBRARY ||

        (target->GetType() == cmStateEnums::GLOBAL_TARGET &&

         target->GetName() != this->GetInstallTargetName())) {

      continue;

    }

    // create target build file

    std::string name = cmStrCat(target->GetName(), ".tgt", FILE_EXTENSION);

    std::string fname = cmStrCat(rootBinaryDir, '/', name);

    cmGeneratedFileStream fbld(fname);

    fbld.SetCopyIfDifferent(true);

    this->WriteFileHeader(fbld);

    GhsMultiGpj::WriteGpjTag(GhsMultiGpj::PROJECT, fbld);

    std::vector<cmGeneratorTarget const*> build;

    if (this->ComputeTargetBuildOrder(target, build)) {

      cmSystemTools::Error(

        cmStrCat("The inter-target dependency graph for target [",

                 target->GetName(), "] had a cycle.\n"));

    } else {

      for (auto& tgt : build) {

        this->WriteProjectLine(fbld, tgt, rootBinaryDir);

      }

    }

    fbld.Close();

  }

}

void cmGlobalGhsMultiGenerator::Generate()

{

  std::string fname;

  // first do the superclass method

  this->cmGlobalGenerator::Generate();

  // output top-level projects

  for (auto& it : this->ProjectMap) {

    this->OutputTopLevelProject(it.second[0], it.second);

  }

  // create custom rule BOD file

  fname = this->GetCMakeInstance()->GetHomeOutputDirectory() +

    "/CMakeFiles/custom_rule.bod";

  cmGeneratedFileStream frule(fname);

  frule.SetCopyIfDifferent(true);

  this->WriteFileHeader(frule);

  this->WriteCustomRuleBOD(frule);

  frule.Close();

  // create custom target BOD file

  fname = this->GetCMakeInstance()->GetHomeOutputDirectory() +

    "/CMakeFiles/custom_target.bod";

  cmGeneratedFileStream ftarget(fname);

  ftarget.SetCopyIfDifferent(true);

  this->WriteFileHeader(ftarget);

  this->WriteCustomTargetBOD(ftarget);

  ftarget.Close();

}

void cmGlobalGhsMultiGenerator::OutputTopLevelProject(

  cmLocalGenerator* root, std::vector<cmLocalGenerator*>& generators)

{

  std::string fname;

  if (generators.empty()) {

    return;

  }

  // Collect all targets under this root generator and the transitive

  // closure of their dependencies.

  TargetDependSet const projectTargets =

    this->GetTargetsForProject(root, generators);

  OrderedTargetDependSet sortedProjectTargets(projectTargets, "");

  this->ProjectTargets.clear();

  for (cmGeneratorTarget const* t : sortedProjectTargets) {

    /* save list of all targets in sorted order */

    this->ProjectTargets.push_back(t);

  }

  /* Name top-level projects as filename.top.gpj to avoid name clashes

   * with target projects.  This avoid the issue where the project has

   * the same name as the executable target.

   */

  fname = cmStrCat(root->GetCurrentBinaryDirectory(), '/',

                   root->GetProjectName(), ".top", FILE_EXTENSION);

  cmGeneratedFileStream top(fname);

  top.SetCopyIfDifferent(true);

  this->WriteTopLevelProject(top, root);

  this->WriteTargets(root);

  this->WriteSubProjects(top, true);

  this->WriteSubProjects(top, false);

  top.Close();

}

std::vector<cmGlobalGenerator::GeneratedMakeCommand>

cmGlobalGhsMultiGenerator::GenerateBuildCommand(

  std::string const& makeProgram, std::string const& projectName,

  std::string const& projectDir, std::vector<std::string> const& targetNames,

  std::string const& /*config*/, int jobs, bool verbose,

  cmBuildOptions /*buildOptions*/, std::vector<std::string> const& makeOptions,

  BuildTryCompile /*isInTryCompile*/)

{

  GeneratedMakeCommand makeCommand;

  makeCommand.Add(this->SelectMakeProgram(makeProgram));

  if (jobs != cmake::NO_BUILD_PARALLEL_LEVEL) {

    if (jobs == cmake::DEFAULT_BUILD_PARALLEL_LEVEL) {

      makeCommand.Add("-parallel");

    } else {

      makeCommand.Add(std::string("-parallel=") + std::to_string(jobs));

    }

  }

  /* determine the top-project file in the project directory */

  std::string proj = projectName + ".top" + FILE_EXTENSION;

  std::vector<std::string> files;

  cmSystemTools::Glob(projectDir, ".*\\.top\\.gpj", files);

  if (!files.empty()) {

    /* use the real top-level project in the directory */

    proj = files.at(0);

  }

  makeCommand.Add("-top", proj);

  /* determine targets to build */

  bool build_all = false;

  if (!targetNames.empty()) {

    for (auto const& tname : targetNames) {

      if (!tname.empty()) {

        if (tname == "clean") {

          makeCommand.Add("-clean");

        } else {

          makeCommand.Add(tname + ".tgt.gpj");

        }

      } else {

        build_all = true;

      }

    }

  } else {

    build_all = true;

  }

  if (build_all) {

    /* transform name to default build */;

    std::string all = std::string(this->GetAllTargetName()) + ".tgt.gpj";

    makeCommand.Add(all);

  }

  if (verbose) {

    makeCommand.Add("-commands");

  }

  makeCommand.Add(makeOptions.begin(), makeOptions.end());

  return { std::move(makeCommand) };

}

void cmGlobalGhsMultiGenerator::WriteMacros(std::ostream& fout,

                                            cmLocalGenerator* root)

{

  fout << "macro PROJ_NAME=" << root->GetProjectName() << '\n';

  cmValue ghsGpjMacros = root->GetMakefile()->GetDefinition("GHS_GPJ_MACROS");

  if (ghsGpjMacros) {

    cmList expandedList{ *ghsGpjMacros };

    for (std::string const& arg : expandedList) {

      fout << "macro " << arg << '\n';

    }

  }

}

void cmGlobalGhsMultiGenerator::WriteHighLevelDirectives(

  std::ostream& fout, cmLocalGenerator* root)

{

  /* put primary target and customization files into project file */

  cmValue const tgt = root->GetMakefile()->GetDefinition("GHS_PRIMARY_TARGET");

  /* clang-format off */

  fout << "primaryTarget=" << tgt << "\n"

          "customization=" << root->GetBinaryDirectory()

       << "/CMakeFiles/custom_rule.bod\n"

          "customization=" << root->GetBinaryDirectory()

       << "/CMakeFiles/custom_target.bod" << '\n';

  /* clang-format on */

  cmValue const customization =

    root->GetMakefile()->GetDefinition("GHS_CUSTOMIZATION");

  if (cmNonempty(customization)) {

    fout << "customization="

         << cmGlobalGhsMultiGenerator::TrimQuotes(*customization) << '\n';

    this->GetCMakeInstance()->MarkCliAsUsed("GHS_CUSTOMIZATION");

  }

}

std::string cmGlobalGhsMultiGenerator::TrimQuotes(std::string str)

{

  cm::erase(str, '"');

  return str;

}

bool cmGlobalGhsMultiGenerator::TargetCompare::operator()(

  cmGeneratorTarget const* l, cmGeneratorTarget const* r) const

{

  // Make sure a given named target is ordered first,

  // e.g. to set ALL_BUILD as the default active project.

  // When the empty string is named this is a no-op.

  if (r->GetName() == this->First) {

    return false;

  }

  if (l->GetName() == this->First) {

    return true;

  }

  return l->GetName() < r->GetName();

}

cmGlobalGhsMultiGenerator::OrderedTargetDependSet::OrderedTargetDependSet(

  TargetDependSet const& targets, std::string const& first)

  : derived(TargetCompare(first))

{

  this->insert(targets.begin(), targets.end());

}

bool cmGlobalGhsMultiGenerator::ComputeTargetBuildOrder(

  cmGeneratorTarget const* tgt, std::vector<cmGeneratorTarget const*>& build)

{

  std::vector<cmGeneratorTarget const*> t{ tgt };

  return this->ComputeTargetBuildOrder(t, build);

}

bool cmGlobalGhsMultiGenerator::ComputeTargetBuildOrder(

  std::vector<cmGeneratorTarget const*>& tgt,

  std::vector<cmGeneratorTarget const*>& build)

{

  std::set<cmGeneratorTarget const*> temp;

  std::set<cmGeneratorTarget const*> perm;

  for (auto const* const ti : tgt) {

    bool r = this->VisitTarget(temp, perm, build, ti);

    if (r) {

      return r;

    }

  }

  return false;

}

bool cmGlobalGhsMultiGenerator::VisitTarget(

  std::set<cmGeneratorTarget const*>& temp,

  std::set<cmGeneratorTarget const*>& perm,

  std::vector<cmGeneratorTarget const*>& order, cmGeneratorTarget const* ti)

{

  /* check if permanent mark is set*/

  if (perm.find(ti) == perm.end()) {

    /* set temporary mark; check if revisit*/

    if (temp.insert(ti).second) {

      /* sort targets lexicographically to ensure that nodes are always visited

       * in the same order */

      OrderedTargetDependSet sortedTargets(this->GetTargetDirectDepends(ti),

                                           "");

      for (auto const& di : sortedTargets) {

        if (this->VisitTarget(temp, perm, order, di)) {

          return true;

        }

      }

      /* mark as complete; insert into beginning of list*/

      perm.insert(ti);

      order.push_back(ti);

      return false;

    }

    /* revisiting item - not a DAG */

    return true;

  }

  /* already complete */

  return false;

}

bool cmGlobalGhsMultiGenerator::AddCheckTarget()

{

  // Skip the target if no regeneration is to be done.

  if (this->GlobalSettingIsOn("CMAKE_SUPPRESS_REGENERATION")) {

    return false;

  }

  // Get the generators.

  std::vector<std::unique_ptr<cmLocalGenerator>> const& generators =

    this->LocalGenerators;

  auto& lg =

    cm::static_reference_cast<cmLocalGhsMultiGenerator>(generators[0]);

  // The name of the output file for the custom command.

  this->StampFile = lg.GetBinaryDirectory() + std::string("/CMakeFiles/") +

    CHECK_BUILD_SYSTEM_TARGET;

  // Add a custom rule to re-run CMake if any input files changed.

  {

    // Collect the input files used to generate all targets in this

    // project.

    std::vector<std::string> listFiles;

    for (auto const& gen : generators) {

      cm::append(listFiles, gen->GetMakefile()->GetListFiles());

    }

    // Add the cache file.

    listFiles.emplace_back(cmStrCat(

      this->GetCMakeInstance()->GetHomeOutputDirectory(), "/CMakeCache.txt"));

    // Print not implemented warning.

    if (this->GetCMakeInstance()->DoWriteGlobVerifyTarget()) {

      std::ostringstream msg;

      msg << "Any pre-check scripts, such as those generated for file(GLOB "

             "CONFIGURE_DEPENDS), will not be run by gbuild.";

      this->GetCMakeInstance()->IssueDiagnostic(cmDiagnostics::CMD_AUTHOR,

                                                msg.str());

    }

    // Sort the list of input files and remove duplicates.

    std::sort(listFiles.begin(), listFiles.end(), std::less<std::string>());

    auto newEnd = std::unique(listFiles.begin(), listFiles.end());

    listFiles.erase(newEnd, listFiles.end());

    // Create a rule to re-run CMake and create output file.

    cmCustomCommandLines commandLines;

    commandLines.emplace_back(

      cmMakeCommandLine({ cmSystemTools::GetCMakeCommand(), "-E", "rm", "-f",

                          this->StampFile }));

    std::string argS = cmStrCat("-S", lg.GetSourceDirectory());

    std::string argB = cmStrCat("-B", lg.GetBinaryDirectory());

    commandLines.emplace_back(

      cmMakeCommandLine({ cmSystemTools::GetCMakeCommand(), argS, argB }));

    commandLines.emplace_back(cmMakeCommandLine(

      { cmSystemTools::GetCMakeCommand(), "-E", "touch", this->StampFile }));

    /* Create the target(Exclude from ALL_BUILD).

     *

     * The build tool, currently, does not support rereading the project files

     * if they get updated. So do not run this target as part of ALL_BUILD.

     */

    auto cc = cm::make_unique<cmCustomCommand>();

    cmTarget* tgt =

      lg.AddUtilityCommand(CHECK_BUILD_SYSTEM_TARGET, true, std::move(cc));

    auto ptr = cm::make_unique<cmGeneratorTarget>(tgt, &lg);

    auto* gt = ptr.get();

    lg.AddGeneratorTarget(std::move(ptr));

    // Add the rule.

    cc = cm::make_unique<cmCustomCommand>();

    cc->SetOutputs(this->StampFile);

    cc->SetDepends(listFiles);

    cc->SetCommandLines(commandLines);

    cc->SetComment("Checking Build System");

    cc->SetEscapeOldStyle(false);

    cc->SetStdPipesUTF8(true);

    if (cmSourceFile* file =

          lg.AddCustomCommandToOutput(std::move(cc), true)) {

      gt->AddSource(file->ResolveFullPath());

    } else {

      cmSystemTools::Error("Error adding rule for " + this->StampFile);

    }

    // Organize in the "predefined targets" folder:

    if (this->UseFolderProperty()) {

      tgt->SetProperty("FOLDER", this->GetPredefinedTargetsFolder());

    }

  }

  return true;

}

void cmGlobalGhsMultiGenerator::AddAllTarget()

{

  // Add a special target that depends on ALL projects for easy build

  // of one configuration only.

  for (auto const& it : this->ProjectMap) {

    std::vector<cmLocalGenerator*> const& gen = it.second;

    // add the ALL_BUILD to the first local generator of each project

    if (!gen.empty()) {

      // Use no actual command lines so that the target itself is not

      // considered always out of date.

      auto cc = cm::make_unique<cmCustomCommand>();

      cc->SetEscapeOldStyle(false);

      cc->SetComment("Build all projects");

      cmTarget* allBuild = gen[0]->AddUtilityCommand(this->GetAllTargetName(),

                                                     true, std::move(cc));

      gen[0]->AddGeneratorTarget(

        cm::make_unique<cmGeneratorTarget>(allBuild, gen[0]));

      // Organize in the "predefined targets" folder:

      if (this->UseFolderProperty()) {

        allBuild->SetProperty("FOLDER", this->GetPredefinedTargetsFolder());

      }

      // Now make all targets depend on the ALL_BUILD target

      for (cmLocalGenerator const* i : gen) {

        for (auto const& tgt : i->GetGeneratorTargets()) {

          // Skip global or imported targets

          if (tgt->GetType() == cmStateEnums::GLOBAL_TARGET ||

              tgt->IsImported()) {

            continue;

          }

          // Skip Exclude From All Targets

          if (!this->IsExcluded(gen[0], tgt.get())) {

            allBuild->AddUtility(tgt->GetName(), false);

          }

        }

      }

    }

  }

}

void cmGlobalGhsMultiGenerator::AddExtraIDETargets()

{

  // Add a special target that depends on ALL projects.

  this->AddAllTarget();

  /* Add Custom Target to check if CMake needs to be rerun.

   *

   * The build tool, currently, does not support rereading the project files

   * if they get updated.  So do not make the other targets dependent on this

   * check.

   */

  this->AddCheckTarget();

}