pkgutil.h

   1 //
   2 //  pkgutils
   3 //
   4 //  Copyright (c) 2000-2005 Per Liden
   5 //  Copyright (c) 2006-2013 by CRUX team (http://crux.nu)
   6 //
   7 //  This program is free software; you can redistribute it and/or modify
   8 //  it under the terms of the GNU General Public License as published by
   9 //  the Free Software Foundation; either version 2 of the License, or
  10 //  (at your option) any later version.
  11 //
  12 //  This program is distributed in the hope that it will be useful,
  13 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 //  GNU General Public License for more details.
  16 //
  17 //  You should have received a copy of the GNU General Public License
  18 //  along with this program; if not, write to the Free Software
  19 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  20 //  USA.
  21 //
  22
  23 #ifndef PKGUTIL_H
  24 #define PKGUTIL_H
  25
  26 #include <string>
  27 #include <set>
  28 #include <map>
  29 #include <iostream>
  30 #include <stdexcept>
  31 #include <cerrno>
  32 #include <cstring>
  33 #include <sys/types.h>
  34 #include <dirent.h>
  35
  36 #define PKG_EXT         ".pkg.tar."
  37 #define PKG_DIR         "var/lib/pkg"
  38 #define PKG_DB          "var/lib/pkg/db"
  39 #define PKG_REJECTED    "var/lib/pkg/rejected"
  40 #define VERSION_DELIM   '#'
  41 #define LDCONFIG        "/sbin/ldconfig"
  42 #define LDCONFIG_CONF   "/etc/ld.so.conf"
  43
  44 using namespace std;
  45
  46 class pkgutil {
  47 public:
  48         struct pkginfo_t {
  49                 string version;
  50                 set<string> files;
  51         };
  52
  53         typedef map<string, pkginfo_t> packages_t;
  54
  55         explicit pkgutil(const string& name);
  56         virtual ~pkgutil() {}
  57         virtual void run(int argc, char** argv) = 0;
  58         virtual void print_help() const = 0;
  59         void print_version() const;
  60
  61 protected:
  62         // Database
  63         void db_open(const string& path);
  64         void db_commit();
  65         void db_add_pkg(const string& name, const pkginfo_t& info);
  66         bool db_find_pkg(const string& name);
  67         void db_rm_pkg(const string& name);
  68         void db_rm_pkg(const string& name, const set<string>& keep_list);
  69         void db_rm_files(set<string> files, const set<string>& keep_list);
  70         set<string> db_find_conflicts(const string& name, const pkginfo_t& info);
  71
  72         // Tar.gz
  73         pair<string, pkginfo_t> pkg_open(const string& filename) const;
  74         void pkg_install(const string& filename, const set<string>& keep_list, const set<string>& non_install_files) const;
  75         void pkg_footprint(string& filename) const;
  76         void ldconfig() const;
  77
  78         string utilname;
  79         packages_t packages;
  80         string root;
  81 };
  82
  83 class db_lock {
  84 public:
  85         db_lock(const string& root, bool exclusive);
  86         ~db_lock();
  87 private:
  88         DIR* dir;
  89 };
  90
  91 class runtime_error_with_errno : public runtime_error {
  92 public:
  93         explicit runtime_error_with_errno(const string& msg) throw()
  94                 : runtime_error(msg + string(": ") + strerror(errno)) {}
  95         explicit runtime_error_with_errno(const string& msg, int e) throw()
  96                 : runtime_error(msg + string(": ") + strerror(e)) {}
  97 };
  98
  99 // Utility functions
 100 void assert_argument(char** argv, int argc, int index);
 101 string itos(unsigned int value);
 102 string mtos(mode_t mode);
 103 string trim_filename(const string& filename);
 104 bool file_exists(const string& filename);
 105 bool file_empty(const string& filename);
 106 bool file_equal(const string& file1, const string& file2);
 107 bool permissions_equal(const string& file1, const string& file2);
 108 void file_remove(const string& basedir, const string& filename);
 109
 110 #endif /* PKGUTIL_H */