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

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

#include "cmRuntimeDependencyArchive.h"

#include <algorithm>

#include <sstream>

#include <string>

#include <utility>

#include <vector>

#include <cm/memory>

#include "cmBinUtilsLinuxELFLinker.h"

#include "cmBinUtilsMacOSMachOLinker.h"

#include "cmBinUtilsWindowsPELinker.h"

#include "cmExecutionStatus.h"

#include "cmList.h"

#include "cmMakefile.h"

#include "cmSystemTools.h"

#include "cmTargetTypes.h"

#if defined(_WIN32)

#  include "cmGlobalGenerator.h"

#  ifndef CMAKE_BOOTSTRAP

#    include "cmGlobalVisualStudioVersionedGenerator.h"

#  endif

#  include "cmsys/Glob.hxx"

#  include "cmVSSetupHelper.h"

#endif

#if defined(_WIN32)

static void AddVisualStudioPath(std::vector<std::string>& paths,

                                std::string const& prefix,

                                unsigned int version, cmGlobalGenerator* gg)

{

  // If generating for the VS IDE, use the same instance.

  std::string vsloc;

  bool found = false;

#  ifndef CMAKE_BOOTSTRAP

  if (cmHasPrefix(gg->GetName(), prefix)) {

    cmGlobalVisualStudioVersionedGenerator* vsgen =

      static_cast<cmGlobalVisualStudioVersionedGenerator*>(gg);

    if (vsgen->GetVSInstance(vsloc)) {

      found = true;

    }

  }

#  endif

  // Otherwise, find a VS instance ourselves.

  if (!found) {

    cmVSSetupAPIHelper vsSetupAPIHelper(version);

    if (vsSetupAPIHelper.GetVSInstanceInfo(vsloc)) {

      cmSystemTools::ConvertToUnixSlashes(vsloc);

      found = true;

    }

  }

  if (found) {

    cmsys::Glob glob;

    glob.SetListDirs(true);

    glob.FindFiles(vsloc + "/VC/Tools/MSVC/*");

    for (auto const& vcdir : glob.GetFiles()) {

      paths.push_back(vcdir + "/bin/Hostx64/x64");

      paths.push_back(vcdir + "/bin/Hostx86/x64");

      paths.push_back(vcdir + "/bin/Hostx64/x86");

      paths.push_back(vcdir + "/bin/Hostx86/x86");

    }

  }

}

static void AddRegistryPath(std::vector<std::string>& paths,

                            std::string const& path, cmMakefile* mf)

{

  // We should view the registry as the target application would view

  // it.

  cmSystemTools::KeyWOW64 view = cmSystemTools::KeyWOW64_32;

  cmSystemTools::KeyWOW64 other_view = cmSystemTools::KeyWOW64_64;

  if (mf->PlatformIs64Bit()) {

    view = cmSystemTools::KeyWOW64_64;

    other_view = cmSystemTools::KeyWOW64_32;

  }

  // Expand using the view of the target application.

  std::string expanded = path;

  cmSystemTools::ExpandRegistryValues(expanded, view);

  cmSystemTools::GlobDirs(expanded, paths);

  // Executables can be either 32-bit or 64-bit, so expand using the

  // alternative view.

  expanded = path;

  cmSystemTools::ExpandRegistryValues(expanded, other_view);

  cmSystemTools::GlobDirs(expanded, paths);

}

static void AddEnvPath(std::vector<std::string>& paths, std::string const& var,

                       std::string const& suffix)

{

  std::string value;

  if (cmSystemTools::GetEnv(var, value)) {

    paths.push_back(value + suffix);

  }

}

#endif

static cmsys::RegularExpression TransformCompile(std::string const& str)

{

  return cmsys::RegularExpression(str);

}

cmRuntimeDependencyArchive::cmRuntimeDependencyArchive(

  cmExecutionStatus& status, std::vector<std::string> searchDirectories,

  std::string bundleExecutable,

  std::vector<std::string> const& preIncludeRegexes,

  std::vector<std::string> const& preExcludeRegexes,

  std::vector<std::string> const& postIncludeRegexes,

  std::vector<std::string> const& postExcludeRegexes,

  std::vector<std::string> postIncludeFiles,

  std::vector<std::string> postExcludeFiles,

  std::vector<std::string> postExcludeFilesStrict)

  : Status(status)

  , SearchDirectories(std::move(searchDirectories))

  , BundleExecutable(std::move(bundleExecutable))

  , PreIncludeRegexes(preIncludeRegexes.size())

  , PreExcludeRegexes(preExcludeRegexes.size())

  , PostIncludeRegexes(postIncludeRegexes.size())

  , PostExcludeRegexes(postExcludeRegexes.size())

  , PostIncludeFiles(std::move(postIncludeFiles))

  , PostExcludeFiles(std::move(postExcludeFiles))

  , PostExcludeFilesStrict(std::move(postExcludeFilesStrict))

{

  std::transform(preIncludeRegexes.begin(), preIncludeRegexes.end(),

                 this->PreIncludeRegexes.begin(), TransformCompile);

  std::transform(preExcludeRegexes.begin(), preExcludeRegexes.end(),

                 this->PreExcludeRegexes.begin(), TransformCompile);

  std::transform(postIncludeRegexes.begin(), postIncludeRegexes.end(),

                 this->PostIncludeRegexes.begin(), TransformCompile);

  std::transform(postExcludeRegexes.begin(), postExcludeRegexes.end(),

                 this->PostExcludeRegexes.begin(), TransformCompile);

}

bool cmRuntimeDependencyArchive::Prepare()

{

  std::string platform = this->GetMakefile()->GetSafeDefinition(

    "CMAKE_GET_RUNTIME_DEPENDENCIES_PLATFORM");

  if (platform.empty()) {

    std::string systemName =

      this->GetMakefile()->GetSafeDefinition("CMAKE_HOST_SYSTEM_NAME");

    if (systemName == "Windows") {

      platform = "windows+pe";

    } else if (systemName == "Darwin") {

      platform = "macos+macho";

    } else if (systemName == "Linux") {

      platform = "linux+elf";

    } else if (systemName == "FreeBSD") {

      platform = "freebsd+elf";

    }

  }

  if (platform == "linux+elf" || platform == "freebsd+elf") {

    this->Linker = cm::make_unique<cmBinUtilsLinuxELFLinker>(this);

  } else if (platform == "windows+pe") {

    this->Linker = cm::make_unique<cmBinUtilsWindowsPELinker>(this);

  } else if (platform == "macos+macho") {

    this->Linker = cm::make_unique<cmBinUtilsMacOSMachOLinker>(this);

  } else {

    std::ostringstream e;

    e << "Invalid value for CMAKE_GET_RUNTIME_DEPENDENCIES_PLATFORM: "

      << platform;

    this->SetError(e.str());

    return false;

  }

  return this->Linker->Prepare();

}

bool cmRuntimeDependencyArchive::GetRuntimeDependencies(

  std::vector<std::string> const& executables,

  std::vector<std::string> const& libraries,

  std::vector<std::string> const& modules)

{

  for (auto const& exe : executables) {

    if (!this->Linker->ScanDependencies(exe, cm::TargetType::EXECUTABLE)) {

      return false;

    }

  }

  for (auto const& lib : libraries) {

    if (!this->Linker->ScanDependencies(lib, cm::TargetType::SHARED_LIBRARY)) {

      return false;

    }

  }

  return std::all_of(modules.begin(), modules.end(),

                     [this](std::string const& mod) -> bool {

                       return this->Linker->ScanDependencies(

                         mod, cm::TargetType::MODULE_LIBRARY);

                     });

}

void cmRuntimeDependencyArchive::SetError(std::string const& e)

{

  this->Status.SetError(e);

}

std::string const& cmRuntimeDependencyArchive::GetBundleExecutable() const

{

  return this->BundleExecutable;

}

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

cmRuntimeDependencyArchive::GetSearchDirectories() const

{

  return this->SearchDirectories;

}

std::string const& cmRuntimeDependencyArchive::GetGetRuntimeDependenciesTool()

  const

{

  return this->GetMakefile()->GetSafeDefinition(

    "CMAKE_GET_RUNTIME_DEPENDENCIES_TOOL");

}

bool cmRuntimeDependencyArchive::GetGetRuntimeDependenciesCommand(

  std::string const& search, std::vector<std::string>& command) const

{

  // First see if it was supplied by the user

  std::string toolCommand = this->GetMakefile()->GetSafeDefinition(

    "CMAKE_GET_RUNTIME_DEPENDENCIES_COMMAND");

  if (toolCommand.empty() && search == "objdump") {

    toolCommand = this->GetMakefile()->GetSafeDefinition("CMAKE_OBJDUMP");

  }

  if (!toolCommand.empty()) {

    cmExpandList(toolCommand, command);

    return true;

  }

  // Now go searching for it

  std::vector<std::string> paths;

#ifdef _WIN32

  cmGlobalGenerator* gg = this->GetMakefile()->GetGlobalGenerator();

  // Add newer Visual Studio paths

  AddVisualStudioPath(paths, "Visual Studio 18 ", 18, gg);

  AddVisualStudioPath(paths, "Visual Studio 17 ", 17, gg);

  AddVisualStudioPath(paths, "Visual Studio 16 ", 16, gg);

  AddVisualStudioPath(paths, "Visual Studio 15 ", 15, gg);

  // Add older Visual Studio paths

  AddRegistryPath(

    paths,

    "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\14.0;InstallDir]/"

    "../../VC/bin",

    this->GetMakefile());

  AddEnvPath(paths, "VS140COMNTOOLS", "/../../VC/bin");

  paths.push_back(

    "C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin");

  AddRegistryPath(

    paths,

    "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\12.0;InstallDir]/"

    "../../VC/bin",

    this->GetMakefile());

  AddEnvPath(paths, "VS120COMNTOOLS", "/../../VC/bin");

  paths.push_back(

    "C:/Program Files (x86)/Microsoft Visual Studio 12.0/VC/bin");

  AddRegistryPath(

    paths,

    "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\11.0;InstallDir]/"

    "../../VC/bin",

    this->GetMakefile());

  AddEnvPath(paths, "VS110COMNTOOLS", "/../../VC/bin");

  paths.push_back(

    "C:/Program Files (x86)/Microsoft Visual Studio 11.0/VC/bin");

  AddRegistryPath(

    paths,

    "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\10.0;InstallDir]/"

    "../../VC/bin",

    this->GetMakefile());

  AddEnvPath(paths, "VS100COMNTOOLS", "/../../VC/bin");

  paths.push_back(

    "C:/Program Files (x86)/Microsoft Visual Studio 10.0/VC/bin");

  AddRegistryPath(

    paths,

    "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\9.0;InstallDir]/"

    "../../VC/bin",

    this->GetMakefile());

  AddEnvPath(paths, "VS90COMNTOOLS", "/../../VC/bin");

  paths.push_back("C:/Program Files/Microsoft Visual Studio 9.0/VC/bin");

  paths.push_back("C:/Program Files (x86)/Microsoft Visual Studio 9.0/VC/bin");

  AddRegistryPath(

    paths,

    "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\8.0;InstallDir]/"

    "../../VC/bin",

    this->GetMakefile());

  AddEnvPath(paths, "VS80COMNTOOLS", "/../../VC/bin");

  paths.push_back("C:/Program Files/Microsoft Visual Studio 8/VC/BIN");

  paths.push_back("C:/Program Files (x86)/Microsoft Visual Studio 8/VC/BIN");

  AddRegistryPath(

    paths,

    "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\7.1;InstallDir]/"

    "../../VC7/bin",

    this->GetMakefile());

  AddEnvPath(paths, "VS71COMNTOOLS", "/../../VC7/bin");

  paths.push_back(

    "C:/Program Files/Microsoft Visual Studio .NET 2003/VC7/BIN");

  paths.push_back(

    "C:/Program Files (x86)/Microsoft Visual Studio .NET 2003/VC7/BIN");

#endif

  std::string program = cmSystemTools::FindProgram(search, paths);

  if (!program.empty()) {

    command = { program };

    return true;

  }

  // Couldn't find it

  return false;

}

bool cmRuntimeDependencyArchive::IsPreExcluded(std::string const& name) const

{

  cmsys::RegularExpressionMatch match;

  auto const regexMatch =

    [&match, name](cmsys::RegularExpression const& regex) -> bool {

    return regex.find(name.c_str(), match);

  };

  auto const regexSearch =

    [&regexMatch](

      std::vector<cmsys::RegularExpression> const& regexes) -> bool {

    return std::any_of(regexes.begin(), regexes.end(), regexMatch);

  };

  return !regexSearch(this->PreIncludeRegexes) &&

    regexSearch(this->PreExcludeRegexes);

}

bool cmRuntimeDependencyArchive::IsPostExcluded(std::string const& name) const

{

  cmsys::RegularExpressionMatch match;

  auto const regexMatch =

    [&match, name](cmsys::RegularExpression const& regex) -> bool {

    return regex.find(name.c_str(), match);

  };

  auto const regexSearch =

    [&regexMatch](

      std::vector<cmsys::RegularExpression> const& regexes) -> bool {

    return std::any_of(regexes.begin(), regexes.end(), regexMatch);

  };

  auto const fileMatch = [name](std::string const& file) -> bool {

    return cmSystemTools::SameFile(file, name);

  };

  auto const fileSearch =

    [&fileMatch](std::vector<std::string> const& files) -> bool {

    return std::any_of(files.begin(), files.end(), fileMatch);

  };

  return fileSearch(this->PostExcludeFilesStrict) ||

    (!(regexSearch(this->PostIncludeRegexes) ||

       fileSearch(this->PostIncludeFiles)) &&

     (regexSearch(this->PostExcludeRegexes) ||

      fileSearch(this->PostExcludeFiles)));

}

void cmRuntimeDependencyArchive::AddResolvedPath(

  std::string const& name, std::string const& path, bool& unique,

  std::vector<std::string> rpaths)

{

  auto it = this->ResolvedPaths.emplace(name, std::set<std::string>{}).first;

  unique = true;

  for (auto const& other : it->second) {

    if (cmSystemTools::SameFile(path, other)) {

      unique = false;

      break;

    }

  }

  it->second.emplace(path);

  this->RPaths[path] = std::move(rpaths);

}

void cmRuntimeDependencyArchive::AddUnresolvedPath(std::string const& name)

{

  this->UnresolvedPaths.insert(name);

}

cmMakefile* cmRuntimeDependencyArchive::GetMakefile() const

{

  return &this->Status.GetMakefile();

}

std::map<std::string, std::set<std::string>> const&

cmRuntimeDependencyArchive::GetResolvedPaths() const

{

  return this->ResolvedPaths;

}

std::set<std::string> const& cmRuntimeDependencyArchive::GetUnresolvedPaths()

  const

{

  return this->UnresolvedPaths;

}

std::map<std::string, std::vector<std::string>> const&

cmRuntimeDependencyArchive::GetRPaths() const

{

  return this->RPaths;

}

bool cmRuntimeDependencyArchive::PlatformSupportsRuntimeDependencies(

  std::string const& platform)

{

  static std::set<std::string> const supportedPlatforms = {

    "Windows",

    "Linux",

    "Darwin",

    "FreeBSD",

  };

  return supportedPlatforms.count(platform);

}