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