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
  17 #include <string>
  18 #include <stdio.h>
  19 #include <iostream>
  20 #include <vector>
  21 #include <map>
  22 #include <set>
  23
  24 #include "cachedb.h"
  25 #include "multicompress.h"
  26 #include "override.h"
  27 #include "apt-ftparchive.h"
  28
  29 using std::string;
  30 using std::cout;
  31 using std::endl;
  32 using std::vector;
  33 using std::map;
  34
  35 class FTWScanner
  36 {
  37    protected:
  38    vector<string> Patterns;
  39    string Arch;
  40    const char *OriginalPath;
  41    bool ErrorPrinted;
  42
  43    // Stuff for the delinker
  44    bool NoLinkAct;
  45
  46    static FTWScanner *Owner;
  47    static int ScannerFTW(const char *File,const struct stat *sb,int Flag);
  48    static int ScannerFile(const char *File, bool const &ReadLink);
  49
  50    bool Delink(string &FileName,const char *OriginalPath,
  51                unsigned long &Bytes,off_t const &FileSize);
  52
  53    inline void NewLine(unsigned const &Priority)
  54    {
  55       if (ErrorPrinted == false && Quiet <= Priority)
  56       {
  57          c1out << endl;
  58          ErrorPrinted = true;
  59       }
  60    }
  61
  62    public:
  63
  64    unsigned long DeLinkLimit;
  65    string InternalPrefix;
  66
  67    virtual bool DoPackage(string FileName) = 0;
  68    bool RecursiveScan(string const &Dir);
  69    bool LoadFileList(string const &BaseDir,string const &File);
  70    void ClearPatterns() { Patterns.clear(); };
  71    void AddPattern(string const &Pattern) { Patterns.push_back(Pattern); };
  72    bool SetExts(string const &Vals);
  73
  74    FTWScanner(string const &Arch = string());
  75 };
  76
  77 class TranslationWriter
  78 {
  79    MultiCompress *Comp;
  80    FILE *Output;
  81    std::set<string> Included;
  82    unsigned short RefCounter;
  83
  84    public:
  85    void IncreaseRefCounter() { ++RefCounter; };
  86    unsigned short DecreaseRefCounter() { return (RefCounter == 0) ? 0 : --RefCounter; };
  87    unsigned short GetRefCounter() const { return RefCounter; };
  88    bool DoPackage(string const &Pkg, string const &Desc, string const &MD5);
  89
  90    TranslationWriter(string const &File, string const &TransCompress, mode_t const &Permissions);
  91    TranslationWriter() : Comp(NULL), Output(NULL), RefCounter(0) {};
  92    ~TranslationWriter();
  93 };
  94
  95 class PackagesWriter : public FTWScanner
  96 {
  97    Override Over;
  98    CacheDB Db;
  99
 100    public:
 101
 102    // Some flags
 103    bool DoMD5;
 104    bool DoSHA1;
 105    bool DoSHA256;
 106    bool DoAlwaysStat;
 107    bool NoOverride;
 108    bool DoContents;
 109    bool LongDescription;
 110
 111    // General options
 112    string PathPrefix;
 113    string DirStrip;
 114    FILE *Output;
 115    struct CacheDB::Stats &Stats;
 116    TranslationWriter *TransWriter;
 117
 118    inline bool ReadOverride(string const &File) {return Over.ReadOverride(File);};
 119    inline bool ReadExtraOverride(string const &File)
 120       {return Over.ReadExtraOverride(File);};
 121    virtual bool DoPackage(string FileName);
 122
 123    PackagesWriter(string const &DB,string const &Overrides,string const &ExtOverrides=string(),
 124                   string const &Arch=string());
 125    virtual ~PackagesWriter() {};
 126 };
 127
 128 class ContentsWriter : public FTWScanner
 129 {
 130    CacheDB Db;
 131
 132    GenContents Gen;
 133
 134    public:
 135
 136    // General options
 137    FILE *Output;
 138    struct CacheDB::Stats &Stats;
 139    string Prefix;
 140
 141    bool DoPackage(string FileName,string Package);
 142    virtual bool DoPackage(string FileName)
 143              {return DoPackage(FileName,string());};
 144    bool ReadFromPkgs(string const &PkgFile,string const &PkgCompress);
 145
 146    void Finish() {Gen.Print(Output);};
 147    inline bool ReadyDB(string const &DB) {return Db.ReadyDB(DB);};
 148
 149    ContentsWriter(string const &DB, string const &Arch = string());
 150    virtual ~ContentsWriter() {};
 151 };
 152
 153 class SourcesWriter : public FTWScanner
 154 {
 155    Override BOver;
 156    Override SOver;
 157    char *Buffer;
 158    unsigned long BufSize;
 159
 160    public:
 161
 162    bool NoOverride;
 163
 164    // General options
 165    string PathPrefix;
 166    string DirStrip;
 167    FILE *Output;
 168    struct CacheDB::Stats Stats;
 169
 170    virtual bool DoPackage(string FileName);
 171
 172    SourcesWriter(string const &BOverrides,string const &SOverrides,
 173                  string const &ExtOverrides=string());
 174    virtual ~SourcesWriter() {free(Buffer);};
 175 };
 176
 177 class ReleaseWriter : public FTWScanner
 178 {
 179 public:
 180    ReleaseWriter(string const &DB);
 181    virtual bool DoPackage(string FileName);
 182    void Finish();
 183
 184    FILE *Output;
 185    // General options
 186    string PathPrefix;
 187    string DirStrip;
 188
 189 protected:
 190    struct CheckSum
 191    {
 192       string MD5;
 193       string SHA1;
 194       string SHA256;
 195       // Limited by FileFd::Size()
 196       unsigned long size;
 197       ~CheckSum() {};
 198    };
 199    map<string,struct CheckSum> CheckSums;
 200 };
 201
 202 #endif