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

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

#include "cmInstallDirectoryGenerator.h"

#include <algorithm>

#include <utility>

#include "cmDiagnosticContext.h"

#include "cmGeneratorExpression.h"

#include "cmInstallType.h"

#include "cmList.h"

#include "cmLocalGenerator.h"

#include "cmMakefile.h"

#include "cmStringAlgorithms.h"

#include "cmSystemTools.h"

cmInstallDirectoryGenerator::cmInstallDirectoryGenerator(

  std::vector<std::string> const& dirs, std::string const& dest,

  std::string filePermissions, std::string dirPermissions,

  std::vector<std::string> const& configurations, std::string const& component,

  MessageLevel message, bool excludeFromAll, std::string literalArgs,

  bool optional, cmDiagnosticContext context)

  : cmInstallGenerator(dest, configurations, component, message,

                       excludeFromAll, false, std::move(context))

  , Directories(dirs)

  , FilePermissions(std::move(filePermissions))

  , DirPermissions(std::move(dirPermissions))

  , LiteralArguments(std::move(literalArgs))

  , Optional(optional)

{

  // We need per-config actions if destination have generator expressions.

  if (cmGeneratorExpression::Find(this->Destination) != std::string::npos) {

    this->ActionsPerConfig = true;

  }

  // We need per-config actions if any directories have generator expressions.

  if (!this->ActionsPerConfig) {

    for (std::string const& dir : dirs) {

      if (cmGeneratorExpression::Find(dir) != std::string::npos) {

        this->ActionsPerConfig = true;

        break;

      }

    }

  }

}

cmInstallDirectoryGenerator::~cmInstallDirectoryGenerator() = default;

bool cmInstallDirectoryGenerator::Compute(cmLocalGenerator* lg)

{

  this->LocalGenerator = lg;

  return true;

}

std::vector<std::string> cmInstallDirectoryGenerator::GetDirectories(

  std::string const& config) const

{

  // If given only empty directories, collapse into a single specification to

  // avoid redundant calls. This supports the use case of installing an empty

  // directory into a destination when a directory is not specified.

  if (std::all_of(this->Directories.begin(), this->Directories.end(),

                  [](std::string const& d) { return d.empty(); })) {

    return std::vector<std::string>{ "" };

  }

  cmList directories;

  if (this->ActionsPerConfig) {

    for (std::string const& f : this->Directories) {

      directories.append(

        cmGeneratorExpression::Evaluate(f, this->LocalGenerator, config));

    }

  } else {

    directories = this->Directories;

  }

  return std::move(directories.data());

}

void cmInstallDirectoryGenerator::GenerateScriptActions(std::ostream& os,

                                                        Indent indent)

{

  if (this->ActionsPerConfig) {

    this->cmInstallGenerator::GenerateScriptActions(os, indent);

  } else {

    this->AddDirectoryInstallRule(os, "", indent, this->Directories);

  }

}

void cmInstallDirectoryGenerator::GenerateScriptForConfig(

  std::ostream& os, std::string const& config, Indent indent)

{

  std::vector<std::string> dirs = this->GetDirectories(config);

  if (!(dirs.size() == 1 && dirs[0].empty())) {

    // Make sure all dirs have absolute paths.

    cmMakefile const& mf = *this->LocalGenerator->GetMakefile();

    for (std::string& d : dirs) {

      if (!cmSystemTools::FileIsFullPath(d)) {

        d = cmStrCat(mf.GetCurrentSourceDirectory(), '/', d);

      }

    }

  }

  this->AddDirectoryInstallRule(os, config, indent, dirs);

}

void cmInstallDirectoryGenerator::AddDirectoryInstallRule(

  std::ostream& os, std::string const& config, Indent indent,

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

{

  // Write code to install the directories.

  char const* noRename = nullptr;

  this->AddInstallRule(os, this->GetDestination(config),

                       cmInstallType_DIRECTORY, dirs, this->Optional,

                       this->FilePermissions.c_str(),

                       this->DirPermissions.c_str(), noRename,

                       this->LiteralArguments.c_str(), indent);

}

std::string cmInstallDirectoryGenerator::GetDestination(

  std::string const& config) const

{

  std::string dest = cmGeneratorExpression::Evaluate(

    this->Destination, this->LocalGenerator, config);

  this->CheckAbsoluteDestination(dest, this->LocalGenerator);

  return dest;

}