apt-pkg/deb/dpkgpm.h

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: dpkgpm.h,v 1.8 2001/05/07 05:05:13 jgg Exp $
   4 /* ######################################################################
   5
   6    DPKG Package Manager - Provide an interface to dpkg
   7
   8    ##################################################################### */
   9                                                                         /*}}}*/
  10 #ifndef PKGLIB_DPKGPM_H
  11 #define PKGLIB_DPKGPM_H
  12
  13 #include <apt-pkg/packagemanager.h>
  14 #include <apt-pkg/pkgcache.h>
  15 #include <apt-pkg/macros.h>
  16
  17 #include <vector>
  18 #include <map>
  19 #include <stdio.h>
  20 #include <string>
  21
  22 #ifndef APT_10_CLEANER_HEADERS
  23 #include <apt-pkg/init.h>
  24 #endif
  25
  26 class pkgDepCache;
  27 namespace APT { namespace Progress { class PackageManager; } }
  28
  29 #ifndef APT_8_CLEANER_HEADERS
  30 using std::vector;
  31 using std::map;
  32 #endif
  33
  34 class pkgDPkgPMPrivate;
  35
  36
  37 class pkgDPkgPM : public pkgPackageManager
  38 {
  39    private:
  40    pkgDPkgPMPrivate * const d;
  41
  42    /** \brief record the disappear action and handle accordingly
  43
  44       dpkg let packages disappear then they have no files any longer and
  45       nothing depends on them. We need to collect this as dpkg as well as
  46       APT doesn't know beforehand that the package will disappear, so the
  47       only possible option is to tell the user afterwards about it.
  48       To enhance the experience we also try to forward the auto-install
  49       flag so the disappear-causer(s) are not autoremoved next time -
  50       for the transfer to happen the disappeared version needs to depend
  51       on the package the flag should be forwarded to and this package
  52       needs to declare a Replaces on the disappeared package.
  53       \param pkgname Name of the package that disappeared
  54    */
  55    APT_HIDDEN void handleDisappearAction(std::string const &pkgname);
  56
  57    protected:
  58    int pkgFailures;
  59
  60    // progress reporting
  61    struct DpkgState
  62    {
  63       const char *state;     // the dpkg state (e.g. "unpack")
  64       const char *str;       // the human readable translation of the state
  65    };
  66
  67    // the dpkg states that the pkg will run through, the string is
  68    // the package, the vector contains the dpkg states that the package
  69    // will go through
  70    std::map<std::string,std::vector<struct DpkgState> > PackageOps;
  71    // the dpkg states that are already done; the string is the package
  72    // the int is the state that is already done (e.g. a package that is
  73    // going to be install is already in state "half-installed")
  74    std::map<std::string,unsigned int> PackageOpsDone;
  75
  76    // progress reporting
  77    unsigned int PackagesDone;
  78    unsigned int PackagesTotal;
  79
  80    struct Item
  81    {
  82       enum Ops {Install, Configure, Remove, Purge, ConfigurePending, TriggersPending,
  83          RemovePending, PurgePending } Op;
  84       std::string File;
  85       PkgIterator Pkg;
  86       Item(Ops Op,PkgIterator Pkg,std::string File = "") : Op(Op),
  87             File(File), Pkg(Pkg) {};
  88       Item() {};
  89
  90    };
  91    std::vector<Item> List;
  92
  93    // Helpers
  94    bool RunScriptsWithPkgs(const char *Cnf);
  95    APT_DEPRECATED_MSG("Use SendPkgInfo with the version as parameter instead") bool SendV2Pkgs(FILE *F);
  96    bool SendPkgsInfo(FILE * const F, unsigned int const &Version);
  97    void WriteHistoryTag(std::string const &tag, std::string value);
  98    std::string ExpandShortPackageName(pkgDepCache &Cache,
  99                                       const std::string &short_pkgname);
 100
 101    // Terminal progress
 102    void SendTerminalProgress(float percentage);
 103
 104    // apport integration
 105    void WriteApportReport(const char *pkgpath, const char *errormsg);
 106
 107    // dpkg log
 108    bool OpenLog();
 109    bool CloseLog();
 110
 111    // helper
 112    void BuildPackagesProgressMap();
 113    void StartPtyMagic();
 114    void SetupSlavePtyMagic();
 115    void StopPtyMagic();
 116
 117    // input processing
 118    void DoStdin(int master);
 119    void DoTerminalPty(int master);
 120    void DoDpkgStatusFd(int statusfd);
 121    void ProcessDpkgStatusLine(char *line);
 122
 123    // The Actual installation implementation
 124    virtual bool Install(PkgIterator Pkg,std::string File) APT_OVERRIDE;
 125    virtual bool Configure(PkgIterator Pkg) APT_OVERRIDE;
 126    virtual bool Remove(PkgIterator Pkg,bool Purge = false) APT_OVERRIDE;
 127
 128    virtual bool Go(APT::Progress::PackageManager *progress) APT_OVERRIDE;
 129    virtual bool Go(int StatusFd=-1) APT_OVERRIDE;
 130
 131    virtual void Reset() APT_OVERRIDE;
 132
 133    public:
 134
 135    pkgDPkgPM(pkgDepCache *Cache);
 136    virtual ~pkgDPkgPM();
 137 };
 138
 139 void SigINT(int sig);
 140
 141 #endif