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 "override.h"
  26 #include "apt-ftparchive.h"
  27
  28 using std::string;
  29 using std::cout;
  30 using std::endl;
  31 using std::vector;
  32 using std::map;
  33
  34 class FTWScanner
  35 {
  36    protected:
  37    vector<string> Patterns;
  38    string Arch;
  39    const char *OriginalPath;
  40    bool ErrorPrinted;
  41
  42    // Stuff for the delinker
  43    bool NoLinkAct;
  44
  45    static FTWScanner *Owner;
  46    static int ScannerFTW(const char *File,const struct stat *sb,int Flag);
  47    static int ScannerFile(const char *File, bool const &ReadLink);
  48
  49    bool Delink(string &FileName,const char *OriginalPath,
  50                unsigned long long &Bytes,unsigned long long const &FileSize);
  51
  52    inline void NewLine(unsigned const &Priority)
  53    {
  54       if (ErrorPrinted == false && Quiet <= Priority)
  55       {
  56          c1out << endl;
  57          ErrorPrinted = true;
  58       }
  59    }
  60
  61    public:
  62    bool DoMD5;
  63    bool DoSHA1;
  64    bool DoSHA256;
  65    bool DoSHA512;
  66
  67    unsigned long DeLinkLimit;
  68    string InternalPrefix;
  69
  70    virtual bool DoPackage(string FileName) = 0;
  71    bool RecursiveScan(string const &Dir);
  72    bool LoadFileList(string const &BaseDir,string const &File);
  73    void ClearPatterns() { Patterns.clear(); };
  74    void AddPattern(string const &Pattern) { Patterns.push_back(Pattern); };
  75    void AddPattern(char const *Pattern) { Patterns.push_back(Pattern); };
  76    void AddPatterns(std::vector<std::string> const &patterns) { Patterns.insert(Patterns.end(), patterns.begin(), patterns.end()); };
  77    bool SetExts(string const &Vals);
  78
  79    FTWScanner(string const &Arch = string());
  80    virtual ~FTWScanner() {};
  81 };
  82
  83 class MultiCompress;
  84
  85 class TranslationWriter
  86 {
  87    MultiCompress *Comp;
  88    FILE *Output;
  89    std::set<string> Included;
  90    unsigned short RefCounter;
  91
  92    public:
  93    void IncreaseRefCounter() { ++RefCounter; };
  94    unsigned short DecreaseRefCounter() { return (RefCounter == 0) ? 0 : --RefCounter; };
  95    unsigned short GetRefCounter() const { return RefCounter; };
  96    bool DoPackage(string const &Pkg, string const &Desc, string const &MD5);
  97
  98    TranslationWriter(string const &File, string const &TransCompress, mode_t const &Permissions);
  99    TranslationWriter() : Comp(NULL), Output(NULL), RefCounter(0) {};
 100    ~TranslationWriter();
 101 };
 102
 103 class PackagesWriter : public FTWScanner
 104 {
 105    Override Over;
 106    CacheDB Db;
 107
 108    public:
 109
 110    // Some flags
 111    bool DoAlwaysStat;
 112    bool NoOverride;
 113    bool DoContents;
 114    bool LongDescription;
 115
 116    // General options
 117    string PathPrefix;
 118    string DirStrip;
 119    FILE *Output;
 120    struct CacheDB::Stats &Stats;
 121    TranslationWriter *TransWriter;
 122
 123    inline bool ReadOverride(string const &File) {return Over.ReadOverride(File);};
 124    inline bool ReadExtraOverride(string const &File)
 125       {return Over.ReadExtraOverride(File);};
 126    virtual bool DoPackage(string FileName);
 127
 128    PackagesWriter(string const &DB,string const &Overrides,string const &ExtOverrides=string(),
 129                   string const &Arch=string());
 130    virtual ~PackagesWriter() {};
 131 };
 132
 133 class ContentsWriter : public FTWScanner
 134 {
 135    CacheDB Db;
 136
 137    GenContents Gen;
 138
 139    public:
 140
 141    // General options
 142    FILE *Output;
 143    struct CacheDB::Stats &Stats;
 144    string Prefix;
 145
 146    bool DoPackage(string FileName,string Package);
 147    virtual bool DoPackage(string FileName)
 148              {return DoPackage(FileName,string());};
 149    bool ReadFromPkgs(string const &PkgFile,string const &PkgCompress);
 150
 151    void Finish() {Gen.Print(Output);};
 152    inline bool ReadyDB(string const &DB) {return Db.ReadyDB(DB);};
 153
 154    ContentsWriter(string const &DB, string const &Arch = string());
 155    virtual ~ContentsWriter() {};
 156 };
 157
 158 class SourcesWriter : public FTWScanner
 159 {
 160    Override BOver;
 161    Override SOver;
 162    char *Buffer;
 163    unsigned long long BufSize;
 164
 165    public:
 166
 167    bool NoOverride;
 168
 169    // General options
 170    string PathPrefix;
 171    string DirStrip;
 172    FILE *Output;
 173    struct CacheDB::Stats Stats;
 174
 175    virtual bool DoPackage(string FileName);
 176
 177    SourcesWriter(string const &BOverrides,string const &SOverrides,
 178                  string const &ExtOverrides=string());
 179    virtual ~SourcesWriter() {free(Buffer);};
 180 };
 181
 182 class ReleaseWriter : public FTWScanner
 183 {
 184 public:
 185    ReleaseWriter(string const &DB);
 186    virtual bool DoPackage(string FileName);
 187    void Finish();
 188
 189    FILE *Output;
 190    // General options
 191    string PathPrefix;
 192    string DirStrip;
 193
 194 protected:
 195    struct CheckSum
 196    {
 197       string MD5;
 198       string SHA1;
 199       string SHA256;
 200       string SHA512;
 201       // Limited by FileFd::Size()
 202       unsigned long long size;
 203       ~CheckSum() {};
 204    };
 205    map<string,struct CheckSum> CheckSums;
 206 };
 207
 208 #endif