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 *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    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} Op;
  83       std::string File;
  84       PkgIterator Pkg;
  85       Item(Ops Op,PkgIterator Pkg,std::string File = "") : Op(Op),
  86             File(File), Pkg(Pkg) {};
  87       Item() {};
  88
  89    };
  90    std::vector<Item> List;
  91
  92    // Helpers
  93    bool RunScriptsWithPkgs(const char *Cnf);
  94    APT_DEPRECATED bool SendV2Pkgs(FILE *F);
  95    bool SendPkgsInfo(FILE * const F, unsigned int const &Version);
  96    void WriteHistoryTag(std::string const &tag, std::string value);
  97    std::string ExpandShortPackageName(pkgDepCache &Cache,
  98                                       const std::string &short_pkgname);
  99
 100    // Terminal progress
 101    void SendTerminalProgress(float percentage);
 102
 103    // apport integration
 104    void WriteApportReport(const char *pkgpath, const char *errormsg);
 105
 106    // dpkg log
 107    bool OpenLog();
 108    bool CloseLog();
 109
 110    // helper
 111    void BuildPackagesProgressMap();
 112    void StartPtyMagic();
 113    void SetupSlavePtyMagic();
 114    void StopPtyMagic();
 115
 116    // input processing
 117    void DoStdin(int master);
 118    void DoTerminalPty(int master);
 119    void DoDpkgStatusFd(int statusfd);
 120    void ProcessDpkgStatusLine(char *line);
 121
 122    // The Actuall installation implementation
 123    virtual bool Install(PkgIterator Pkg,std::string File);
 124    virtual bool Configure(PkgIterator Pkg);
 125    virtual bool Remove(PkgIterator Pkg,bool Purge = false);
 126
 127    virtual bool Go(APT::Progress::PackageManager *progress);
 128    virtual bool Go(int StatusFd=-1);
 129
 130    virtual void Reset();
 131
 132    public:
 133
 134    pkgDPkgPM(pkgDepCache *Cache);
 135    virtual ~pkgDPkgPM();
 136 };
 137
 138 void SigINT(int sig);
 139
 140 #endif