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

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

#include "cmGlobalCommonGenerator.h"

#include <algorithm>

#include <memory>

#include <utility>

#include <cmext/algorithm>

#include <cmsys/Glob.hxx>

#include "cmGeneratorExpression.h"

#include "cmGeneratorTarget.h"

#include "cmLocalCommonGenerator.h"

#include "cmLocalGenerator.h"

#include "cmStateDirectory.h"

#include "cmStateSnapshot.h"

#include "cmStateTypes.h"

#include "cmStringAlgorithms.h"

#include "cmSystemTools.h"

#include "cmTargetTypes.h"

#include "cmValue.h"

#include "cmake.h"

cmGlobalCommonGenerator::cmGlobalCommonGenerator(cmake* cm)

  : cmGlobalGenerator(cm)

{

}

cmGlobalCommonGenerator::~cmGlobalCommonGenerator() = default;

std::map<std::string, cmGlobalCommonGenerator::DirectoryTarget>

cmGlobalCommonGenerator::ComputeDirectoryTargets() const

{

  std::map<std::string, DirectoryTarget> dirTargets;

  for (auto const& lg : this->LocalGenerators) {

    std::string currentBinaryDir =

      lg->GetStateSnapshot().GetDirectory().GetCurrentBinary();

    DirectoryTarget& dirTarget = dirTargets[currentBinaryDir];

    dirTarget.LG = lg.get();

    std::vector<std::string> const& configs =

      static_cast<cmLocalCommonGenerator const*>(lg.get())->GetConfigNames();

    // The directory-level rule should depend on the target-level rules

    // for all targets in the directory.

    for (auto const& gt : lg->GetGeneratorTargets()) {

      cm::TargetType const type = gt->GetType();

      if (type == cm::TargetType::GLOBAL_TARGET || !gt->IsInBuildSystem()) {

        continue;

      }

      DirectoryTarget::Target t;

      t.GT = gt.get();

      std::string const EXCLUDE_FROM_ALL("EXCLUDE_FROM_ALL");

      if (cmValue exclude = gt->GetProperty(EXCLUDE_FROM_ALL)) {

        for (std::string const& config : configs) {

          cmGeneratorExpressionInterpreter genexInterpreter(lg.get(), config,

                                                            gt.get());

          if (cmIsOn(genexInterpreter.Evaluate(*exclude, EXCLUDE_FROM_ALL))) {

            // This target has been explicitly excluded.

            t.ExcludedFromAllInConfigs.push_back(config);

          }

        }

        if (t.ExcludedFromAllInConfigs.empty()) {

          // This target has been explicitly un-excluded.  The directory-level

          // rule for every directory between this and the root should depend

          // on the target-level rule for this target.

          for (cmStateSnapshot dir =

                 lg->GetStateSnapshot().GetBuildsystemDirectoryParent();

               dir.IsValid(); dir = dir.GetBuildsystemDirectoryParent()) {

            std::string d = dir.GetDirectory().GetCurrentBinary();

            dirTargets[d].Targets.emplace_back(t);

          }

        }

      }

      dirTarget.Targets.emplace_back(t);

    }

    // The directory-level rule should depend on the directory-level

    // rules of the subdirectories.

    for (cmStateSnapshot const& state : lg->GetStateSnapshot().GetChildren()) {

      DirectoryTarget::Dir d;

      d.Path = state.GetDirectory().GetCurrentBinary();

      d.ExcludeFromAll =

        state.GetDirectory().GetPropertyAsBool("EXCLUDE_FROM_ALL");

      dirTarget.Children.emplace_back(std::move(d));

    }

  }

  return dirTargets;

}

bool cmGlobalCommonGenerator::IsExcludedFromAllInConfig(

  DirectoryTarget::Target const& t, std::string const& config)

{

  if (this->IsMultiConfig()) {

    return cm::contains(t.ExcludedFromAllInConfigs, config);

  }

  return !t.ExcludedFromAllInConfigs.empty();

}

std::string cmGlobalCommonGenerator::GetEditCacheCommand() const

{

  // If generating for an extra IDE, the edit_cache target cannot

  // launch a terminal-interactive tool, so always use cmake-gui.

  if (!this->GetExtraGeneratorName().empty()) {

    return cmSystemTools::GetCMakeGUICommand();

  }

  // Use an internal cache entry to track the latest dialog used

  // to edit the cache, and use that for the edit_cache target.

  cmake* cm = this->GetCMakeInstance();

  std::string editCacheCommand = cm->GetCMakeEditCommand();

  if (!cm->GetCacheDefinition("CMAKE_EDIT_COMMAND") ||

      !editCacheCommand.empty()) {

    if (this->SupportsDirectConsole() && editCacheCommand.empty()) {

      editCacheCommand = cmSystemTools::GetCMakeCursesCommand();

    }

    if (editCacheCommand.empty()) {

      editCacheCommand = cmSystemTools::GetCMakeGUICommand();

    }

    if (!editCacheCommand.empty()) {

      cm->AddCacheEntry("CMAKE_EDIT_COMMAND", editCacheCommand,

                        "Path to cache edit program executable.",

                        cmStateEnums::INTERNAL);

    }

  }

  cmValue edit_cmd = cm->GetCacheDefinition("CMAKE_EDIT_COMMAND");

  return edit_cmd ? *edit_cmd : std::string();

}

void cmGlobalCommonGenerator::RemoveUnknownClangTidyExportFixesFiles() const

{

  for (auto const& dir : this->ClangTidyExportFixesDirs) {

    cmsys::Glob g;

    g.SetRecurse(true);

    g.SetListDirs(false);

    g.FindFiles(cmStrCat(dir, "/*.yaml"));

    for (auto const& file : g.GetFiles()) {

      if (!this->ClangTidyExportFixesFiles.count(file) &&

          !std::any_of(this->ClangTidyExportFixesFiles.begin(),

                       this->ClangTidyExportFixesFiles.end(),

                       [&file](std::string const& knownFile) -> bool {

                         return cmSystemTools::SameFile(file, knownFile);

                       })) {

        cmSystemTools::RemoveFile(file);

      }

    }

  }

}