Source/cmCLocaleEnvironmentScope.cxx

   1 /* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   2    file Copyright.txt or https://cmake.org/licensing for details.  */
   3 #include "cmCLocaleEnvironmentScope.h"
   4
   5 #include <sstream>
   6 #include <utility>
   7
   8 #include "cmSystemTools.h"
   9
  10 cmCLocaleEnvironmentScope::cmCLocaleEnvironmentScope()
  11 {
  12   this->SetEnv("LANGUAGE", "");
  13   this->SetEnv("LC_MESSAGES", "C");
  14
  15   std::string lcAll = this->GetEnv("LC_ALL");
  16
  17   if (!lcAll.empty()) {
  18     this->SetEnv("LC_ALL", "");
  19     this->SetEnv("LC_CTYPE", lcAll);
  20   }
  21 }
  22
  23 std::string cmCLocaleEnvironmentScope::GetEnv(std::string const& key)
  24 {
  25   std::string value;
  26   cmSystemTools::GetEnv(key, value);
  27   return value;
  28 }
  29
  30 void cmCLocaleEnvironmentScope::SetEnv(std::string const& key,
  31                                        std::string const& value)
  32 {
  33   std::string oldValue = this->GetEnv(key);
  34
  35   this->EnvironmentBackup.insert(std::make_pair(key, oldValue));
  36
  37   if (value.empty()) {
  38     cmSystemTools::UnsetEnv(key.c_str());
  39   } else {
  40     std::ostringstream tmp;
  41     tmp << key << "=" << value;
  42     cmSystemTools::PutEnv(tmp.str());
  43   }
  44 }
  45
  46 cmCLocaleEnvironmentScope::~cmCLocaleEnvironmentScope()
  47 {
  48   for (auto const& envb : this->EnvironmentBackup) {
  49     std::ostringstream tmp;
  50     tmp << envb.first << "=" << envb.second;
  51     cmSystemTools::PutEnv(tmp.str());
  52   }
  53 }