ftparchive/writer.h

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: writer.h,v 1.4.2.2 2003/12/26 22:55:43 mdz Exp $
   4 /* ######################################################################
   5
   6    Writer
   7
   8    The file writer classes. These write various types of output, sources,
   9    packages and contents.
  10
  11    ##################################################################### */
  12                                                                         /*}}}*/
  13 #ifndef WRITER_H
  14 #define WRITER_H
  15
  16 #include <apt-pkg/hashes.h>
  17
  18 #include <string>
  19 #include <stdio.h>
  20 #include <iostream>
  21 #include <vector>
  22 #include <map>
  23 #include <set>
  24 #include <stdlib.h>
  25 #include <sys/types.h>
  26
  27 #include "contents.h"
  28 #include "cachedb.h"
  29 #include "override.h"
  30 #include "apt-ftparchive.h"
  31
  32 using std::string;
  33 using std::cout;
  34 using std::endl;
  35 using std::vector;
  36 using std::map;
  37
  38 class FTWScanner
  39 {
  40    protected:
  41    vector<string> Patterns;
  42    string Arch;
  43    const char *OriginalPath;
  44    bool ErrorPrinted;
  45
  46    // Stuff for the delinker
  47    bool NoLinkAct;
  48
  49    static FTWScanner *Owner;
  50    static int ScannerFTW(const char *File,const struct stat *sb,int Flag);
  51    static int ScannerFile(const char *File, bool const &ReadLink);
  52
  53    bool Delink(string &FileName,const char *OriginalPath,
  54                unsigned long long &Bytes,unsigned long long const &FileSize);
  55
  56    inline void NewLine(unsigned const &Priority)
  57    {
  58       if (ErrorPrinted == false && Quiet <= Priority)
  59       {
  60          c1out << endl;
  61          ErrorPrinted = true;
  62       }
  63    }
  64
  65    public:
  66    FileFd *Output;
  67    bool OwnsOutput;
  68    unsigned int DoHashes;
  69
  70    unsigned long DeLinkLimit;
  71    string InternalPrefix;
  72
  73    virtual bool DoPackage(string FileName) = 0;
  74    bool RecursiveScan(string const &Dir);
  75    bool LoadFileList(string const &BaseDir,string const &File);
  76    void ClearPatterns() { Patterns.clear(); };
  77    void AddPattern(string const &Pattern) { Patterns.push_back(Pattern); };
  78    void AddPattern(char const *Pattern) { Patterns.push_back(Pattern); };
  79    void AddPatterns(std::vector<std::string> const &patterns) { Patterns.insert(Patterns.end(), patterns.begin(), patterns.end()); };
  80    bool SetExts(string const &Vals);
  81
  82    FTWScanner(FileFd * const Output, string const &Arch = string());
  83    virtual ~FTWScanner();
  84 };
  85
  86 class MultiCompress;
  87
  88 class TranslationWriter
  89 {
  90    MultiCompress *Comp;
  91    std::set<string> Included;
  92    FileFd *Output;
  93
  94    public:
  95    bool DoPackage(string const &Pkg, string const &Desc, string const &MD5);
  96
  97    TranslationWriter(string const &File, string const &TransCompress, mode_t const &Permissions);
  98    ~TranslationWriter();
  99 };
 100
 101 class PackagesWriter : public FTWScanner
 102 {
 103    Override Over;
 104    CacheDB Db;
 105
 106    public:
 107
 108    // Some flags
 109    bool DoAlwaysStat;
 110    bool NoOverride;
 111    bool DoContents;
 112    bool LongDescription;
 113
 114    // General options
 115    string PathPrefix;
 116    string DirStrip;
 117    struct CacheDB::Stats &Stats;
 118    TranslationWriter * const TransWriter;
 119
 120    inline bool ReadOverride(string const &File) {return Over.ReadOverride(File);};
 121    inline bool ReadExtraOverride(string const &File)
 122       {return Over.ReadExtraOverride(File);};
 123    virtual bool DoPackage(string FileName) APT_OVERRIDE;
 124
 125    PackagesWriter(FileFd * const Output, TranslationWriter * const TransWriter, string const &DB,
 126                   string const &Overrides,
 127                   string const &ExtOverrides = "",
 128                   string const &Arch = "");
 129    virtual ~PackagesWriter();
 130 };
 131
 132 class ContentsWriter : public FTWScanner
 133 {
 134    CacheDB Db;
 135
 136    GenContents Gen;
 137
 138    public:
 139
 140    // General options
 141    struct CacheDB::Stats &Stats;
 142    string Prefix;
 143
 144    bool DoPackage(string FileName,string Package);
 145    virtual bool DoPackage(string FileName) APT_OVERRIDE
 146              {return DoPackage(FileName,string());};
 147    bool ReadFromPkgs(string const &PkgFile,string const &PkgCompress);
 148
 149    void Finish() {Gen.Print(*Output);};
 150    inline bool ReadyDB(string const &DB) {return Db.ReadyDB(DB);};
 151
 152    ContentsWriter(FileFd * const Output, string const &DB, string const &Arch = string());
 153    virtual ~ContentsWriter() {};
 154 };
 155
 156 class SourcesWriter : public FTWScanner
 157 {
 158    CacheDB Db;
 159    Override BOver;
 160    Override SOver;
 161    char *Buffer;
 162    unsigned long long BufSize;
 163
 164    public:
 165
 166    bool NoOverride;
 167    bool DoAlwaysStat;
 168
 169    // General options
 170    string PathPrefix;
 171    string DirStrip;
 172    struct CacheDB::Stats &Stats;
 173
 174    virtual bool DoPackage(string FileName) APT_OVERRIDE;
 175
 176    SourcesWriter(FileFd * const Output, string const &DB,string const &BOverrides,string const &SOverrides,
 177                  string const &ExtOverrides=string());
 178    virtual ~SourcesWriter() {free(Buffer);};
 179 };
 180
 181 class ReleaseWriter : public FTWScanner
 182 {
 183 public:
 184    ReleaseWriter(FileFd * const Output, string const &DB);
 185    virtual bool DoPackage(string FileName) APT_OVERRIDE;
 186    void Finish();
 187
 188    // General options
 189    string PathPrefix;
 190    string DirStrip;
 191
 192    struct CheckSum
 193    {
 194       HashStringList Hashes;
 195       // Limited by FileFd::Size()
 196       unsigned long long size;
 197       ~CheckSum() {};
 198    };
 199 protected:
 200    map<string,struct CheckSum> CheckSums;
 201 };
 202
 203 #endif