apt-pkg/init.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: init.cc,v 1.20 2003/02/09 20:31:05 doogie Exp $
   4 /* ######################################################################
   5
   6    Init - Initialize the package library
   7
   8    ##################################################################### */
   9                                                                         /*}}}*/
  10 // Include files                                                        /*{{{*/
  11 #include<config.h>
  12
  13 #include <apt-pkg/init.h>
  14 #include <apt-pkg/fileutl.h>
  15 #include <apt-pkg/error.h>
  16 #include <apt-pkg/pkgsystem.h>
  17 #include <apt-pkg/configuration.h>
  18 #include <apt-pkg/macros.h>
  19
  20 #include <string.h>
  21 #include <string>
  22 #include <cstdlib>
  23
  24 #include <apti18n.h>
  25                                                                         /*}}}*/
  26
  27 #define Stringfy_(x) # x
  28 #define Stringfy(x)  Stringfy_(x)
  29 const char *pkgVersion = PACKAGE_VERSION;
  30 const char *pkgLibVersion = Stringfy(APT_PKG_MAJOR) "."
  31                             Stringfy(APT_PKG_MINOR) "."
  32                             Stringfy(APT_PKG_RELEASE);
  33
  34 // pkgInitConfig - Initialize the configuration class                   /*{{{*/
  35 // ---------------------------------------------------------------------
  36 /* Directories are specified in such a way that the FindDir function will
  37    understand them. That is, if they don't start with a / then their parent
  38    is prepended, this allows a fair degree of flexability. */
  39 bool pkgInitConfig(Configuration &Cnf)
  40 {
  41    // General APT things
  42    Cnf.CndSet("APT::Architecture", COMMON_ARCH);
  43    if (Cnf.Exists("APT::Build-Essential") == false)
  44       Cnf.Set("APT::Build-Essential::", "build-essential");
  45    Cnf.CndSet("APT::Install-Recommends", true);
  46    Cnf.CndSet("APT::Install-Suggests", false);
  47    Cnf.CndSet("Dir","/");
  48
  49    // State
  50    Cnf.CndSet("Dir::State","var/lib/apt/");
  51    Cnf.CndSet("Dir::State::lists","lists/");
  52    Cnf.CndSet("Dir::State::cdroms","cdroms.list");
  53    Cnf.CndSet("Dir::State::mirrors","mirrors/");
  54
  55    // Cache
  56    Cnf.CndSet("Dir::Cache","var/cache/apt/");
  57    Cnf.CndSet("Dir::Cache::archives","archives/");
  58    Cnf.CndSet("Dir::Cache::srcpkgcache","srcpkgcache.bin");
  59    Cnf.CndSet("Dir::Cache::pkgcache","pkgcache.bin");
  60
  61    // Configuration
  62    Cnf.CndSet("Dir::Etc","etc/apt/");
  63    Cnf.CndSet("Dir::Etc::sourcelist","sources.list");
  64    Cnf.CndSet("Dir::Etc::sourceparts","sources.list.d");
  65    Cnf.CndSet("Dir::Etc::vendorlist","vendors.list");
  66    Cnf.CndSet("Dir::Etc::vendorparts","vendors.list.d");
  67    Cnf.CndSet("Dir::Etc::main","apt.conf");
  68    Cnf.CndSet("Dir::Etc::netrc", "auth.conf");
  69    Cnf.CndSet("Dir::Etc::parts","apt.conf.d");
  70    Cnf.CndSet("Dir::Etc::preferences","preferences");
  71    Cnf.CndSet("Dir::Etc::preferencesparts","preferences.d");
  72    Cnf.CndSet("Dir::Etc::trusted", "trusted.gpg");
  73    Cnf.CndSet("Dir::Etc::trustedparts","trusted.gpg.d");
  74    Cnf.CndSet("Dir::Bin::methods","/usr/lib/apt/methods");
  75    Cnf.CndSet("Dir::Bin::solvers::","/usr/lib/apt/solvers");
  76    Cnf.CndSet("Dir::Media::MountPath","/media/apt");
  77
  78    // State
  79    Cnf.CndSet("Dir::Log","var/log/apt");
  80    Cnf.CndSet("Dir::Log::Terminal","term.log");
  81    Cnf.CndSet("Dir::Log::History","history.log");
  82
  83    Cnf.Set("Dir::Ignore-Files-Silently::", "~$");
  84    Cnf.Set("Dir::Ignore-Files-Silently::", "\\.disabled$");
  85    Cnf.Set("Dir::Ignore-Files-Silently::", "\\.bak$");
  86    Cnf.Set("Dir::Ignore-Files-Silently::", "\\.dpkg-[a-z]+$");
  87    Cnf.Set("Dir::Ignore-Files-Silently::", "\\.save$");
  88    Cnf.Set("Dir::Ignore-Files-Silently::", "\\.orig$");
  89    Cnf.Set("Dir::Ignore-Files-Silently::", "\\.distUpgrade$");
  90
  91    // Repository security
  92    // FIXME: this is set to "true" for backward compatibility, once
  93    //        jessie is out we want to change this to "false" to
  94    //        improve security
  95    Cnf.CndSet("Acquire::AllowInsecureRepositories", true);
  96    Cnf.CndSet("Acquire::AllowDowngradeToInsecureRepositories", false);
  97
  98    // Default cdrom mount point
  99    Cnf.CndSet("Acquire::cdrom::mount", "/media/cdrom/");
 100
 101    // The default user we drop to in the methods
 102    Cnf.CndSet("APT::Sandbox::User", "_apt");
 103
 104    bool Res = true;
 105
 106    // Read an alternate config file
 107    const char *Cfg = getenv("APT_CONFIG");
 108    if (Cfg != 0 && strlen(Cfg) != 0)
 109    {
 110       if (RealFileExists(Cfg) == true)
 111          Res &= ReadConfigFile(Cnf,Cfg);
 112       else
 113          _error->WarningE("RealFileExists",_("Unable to read %s"),Cfg);
 114    }
 115
 116    // Read the configuration parts dir
 117    std::string Parts = Cnf.FindDir("Dir::Etc::parts");
 118    if (DirectoryExists(Parts) == true)
 119       Res &= ReadConfigDir(Cnf,Parts);
 120    else
 121       _error->WarningE("DirectoryExists",_("Unable to read %s"),Parts.c_str());
 122
 123    // Read the main config file
 124    std::string FName = Cnf.FindFile("Dir::Etc::main");
 125    if (RealFileExists(FName) == true)
 126       Res &= ReadConfigFile(Cnf,FName);
 127
 128    if (Res == false)
 129       return false;
 130
 131    if (Cnf.FindB("Debug::pkgInitConfig",false) == true)
 132       Cnf.Dump();
 133
 134 #ifdef APT_DOMAIN
 135    if (Cnf.Exists("Dir::Locale"))
 136    {
 137       bindtextdomain(APT_DOMAIN,Cnf.FindDir("Dir::Locale").c_str());
 138       bindtextdomain(textdomain(0),Cnf.FindDir("Dir::Locale").c_str());
 139    }
 140 #endif
 141
 142    return true;
 143 }
 144                                                                         /*}}}*/
 145 // pkgInitSystem - Initialize the _system calss                         /*{{{*/
 146 // ---------------------------------------------------------------------
 147 /* */
 148 bool pkgInitSystem(Configuration &Cnf,pkgSystem *&Sys)
 149 {
 150    Sys = 0;
 151    std::string Label = Cnf.Find("Apt::System","");
 152    if (Label.empty() == false)
 153    {
 154       Sys = pkgSystem::GetSystem(Label.c_str());
 155       if (Sys == 0)
 156          return _error->Error(_("Packaging system '%s' is not supported"),Label.c_str());
 157    }
 158    else
 159    {
 160       signed MaxScore = 0;
 161       for (unsigned I = 0; I != pkgSystem::GlobalListLen; I++)
 162       {
 163          signed Score = pkgSystem::GlobalList[I]->Score(Cnf);
 164          if (Score > MaxScore)
 165          {
 166             MaxScore = Score;
 167             Sys = pkgSystem::GlobalList[I];
 168          }
 169       }
 170
 171       if (Sys == 0)
 172          return _error->Error(_("Unable to determine a suitable packaging system type"));
 173    }
 174
 175    return Sys->Initialize(Cnf);
 176 }
 177                                                                         /*}}}*/