package_meta.h

   1 /*
   2  * Copyright (c) 2001, Robert Collins.
   3  *
   4  *     This program is free software; you can redistribute it and/or modify
   5  *     it under the terms of the GNU General Public License as published by
   6  *     the Free Software Foundation; either version 2 of the License, or
   7  *     (at your option) any later version.
   8  *
   9  *     A copy of the GNU General Public License can be found at
  10  *     http://www.gnu.org/
  11  *
  12  * Written by Robert Collins  <rbtcollins@hotmail.com>
  13  *
  14  */
  15
  16 #ifndef _PACKAGE_META_H_
  17 #define _PACKAGE_META_H_
  18
  19 class packageversion;
  20 class packagemeta;
  21 class category;
  22
  23 /* Required to parse this completely */
  24 #include "list.h"
  25 #include "strings.h"
  26 #include "category.h"
  27
  28 /*
  29    For cleanliness this may need to be put in its own file later. */
  30 class CategoryPackage
  31 {
  32 public:
  33   CategoryPackage (Category & cat):key (cat), pkg (0)
  34   {
  35     next = cat.packages;
  36     cat.packages = this;
  37   };
  38   Category & key;
  39   CategoryPackage *next;        /* The next package pointer in the list */
  40   packagemeta *pkg;
  41 };
  42
  43
  44 /* NOTE: A packagemeta without 1 packageversion is invalid! */
  45 class packagemeta
  46 {
  47 public:
  48   packagemeta (char const *pkgname):installed_from (0),
  49     //versions (0),
  50 //    versioncount (0), versionspace (0),
  51   installed (0), prev (0), prevtimestamp (0), curr (0), currtimestamp (0),
  52     exp (0), exptimestamp (0), desired (0)
  53   {
  54     name = new char[strlen (pkgname) + 1];
  55       strcpy (name, pkgname);
  56   };
  57
  58   packagemeta (char const *pkgname,
  59                char const *installedfrom):installed_from (0),
  60     //versions (0),    versioncount (0), versionspace (0),
  61
  62     installed (0), prev (0), prevtimestamp (0), curr (0), currtimestamp (0),
  63     exp (0), exptimestamp (0), desired (0)
  64   {
  65     name = new char[strlen (pkgname) + 1];
  66     strcpy (name, pkgname);
  67     installed_from = new char[strlen (installedfrom) + 1];
  68     strcpy (installed_from, installedfrom);
  69   };
  70
  71
  72   ~packagemeta ()
  73   {
  74     delete name;
  75     if (installed_from)
  76       delete installed_from;
  77   };
  78
  79   void add_version (packageversion &);
  80   void set_installed (packageversion &);
  81   void uninstall ();
  82
  83   char *name;                   /* package name, like "cygwin" */
  84   /* legacy variable used to output data for installed.db versions <= 2 */
  85   char *installed_from;
  86   /* SDesc is global in theory, across all package versions.
  87      LDesc is not: it can be different per version */
  88   char const *SDesc ();
  89   /* what categories does this package belong in. Note that if multiple versions
  90    * of a package disagree.... the first one read in will take precedence.
  91    */
  92   void add_category (Category &);
  93   list < CategoryPackage, Category &, Categorycmp > Categories;
  94
  95   list < packageversion, char const *, strcasecmp > versions;
  96   /* which one is installed. */
  97   packageversion *installed;
  98   /* which one is listed as "prev" in our available packages db */
  99   packageversion *prev;
 100   /* And what was the timestamp of the ini it was found from */
 101   unsigned int prevtimestamp;
 102   /* ditto for current - stable */
 103   packageversion *curr;
 104   unsigned int currtimestamp;
 105   /* and finally the experimental version */
 106   packageversion *exp;
 107   unsigned int exptimestamp;
 108   /* Now for the user stuff :] */
 109   /* What version does the user want ? */
 110   packageversion *desired;
 111 };
 112
 113 #endif /* _PACKAGE_META_H_ */