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
  22 /* Required to parse this completely */
  23 #include "category_list.h"
  24 #include "list.h"
  25 #include "strings.h"
  26
  27 /*
  28    For cleanliness this may need to be put in its own file later. */
  29 class CategoryPackage
  30 {
  31 public:
  32   CategoryPackage (packagemeta & package):next (0), pkg (package)
  33   {
  34   };
  35   CategoryPackage *next;        /* The next package pointer in the list */
  36   packagemeta & pkg;
  37 };
  38
  39
  40 /* NOTE: A packagemeta without 1 packageversion is invalid! */
  41 class packagemeta
  42 {
  43 public:
  44   packagemeta (char const *pkgname):installed_from (0),
  45     //versions (0),
  46 //    versioncount (0), versionspace (0),
  47   installed (0), prev (0), prevtimestamp (0), curr (0), currtimestamp (0),
  48     exp (0), exptimestamp (0), desired (0)
  49   {
  50     name = new char[strlen (pkgname) + 1];
  51       strcpy (name, pkgname);
  52   };
  53
  54   packagemeta (char const *pkgname,
  55                char const *installedfrom):installed_from (0),
  56     //versions (0),    versioncount (0), versionspace (0),
  57
  58     installed (0), prev (0), prevtimestamp (0), curr (0), currtimestamp (0),
  59     exp (0), exptimestamp (0), desired (0)
  60   {
  61     name = new char[strlen (pkgname) + 1];
  62     strcpy (name, pkgname);
  63     installed_from = new char[strlen (installedfrom) + 1];
  64     strcpy (installed_from, installedfrom);
  65   };
  66
  67
  68   ~packagemeta ()
  69   {
  70     delete name;
  71     if (installed_from)
  72       delete installed_from;
  73   };
  74
  75   void add_version (packageversion &);
  76   void set_installed (packageversion &);
  77   void uninstall ();
  78
  79   char *name;                   /* package name, like "cygwin" */
  80   /* legacy variable used to output data for installed.db versions <= 2 */
  81   char *installed_from;
  82   /* SDesc is global in theory, across all package versions.
  83      LDesc is not: it can be different per version */
  84   char const *SDesc ();
  85   /* what categories does this package belong in. Note that if multiple versions
  86    * of a package disagree.... the first one read in will take precedence.
  87    */
  88   CategoryList & Categories ()
  89   {
  90     return categories;
  91   };
  92   /* Add a known category to this objects category list.
  93    */
  94   void add_category (Category &);
  95
  96   list < packageversion, char const *, strcasecmp > versions;
  97   /* which one is installed. */
  98   packageversion *installed;
  99   /* which one is listed as "prev" in our available packages db */
 100   packageversion *prev;
 101   /* And what was the timestamp of the ini it was found from */
 102   unsigned int prevtimestamp;
 103   /* ditto for current - stable */
 104   packageversion *curr;
 105   unsigned int currtimestamp;
 106   /* and finally the experimental version */
 107   packageversion *exp;
 108   unsigned int exptimestamp;
 109   /* Now for the user stuff :] */
 110   /* What version does the user want ? */
 111   packageversion *desired;
 112 private:
 113   CategoryList categories;
 114 };
 115
 116 #endif /* _PACKAGE_META_H_ */