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    unsigned int DoHashes;
  68
  69    unsigned long DeLinkLimit;
  70    string InternalPrefix;
  71
  72    virtual bool DoPackage(string FileName) = 0;
  73    bool RecursiveScan(string const &Dir);
  74    bool LoadFileList(string const &BaseDir,string const &File);
  75    void ClearPatterns() { Patterns.clear(); };
  76    void AddPattern(string const &Pattern) { Patterns.push_back(Pattern); };
  77    void AddPattern(char const *Pattern) { Patterns.push_back(Pattern); };
  78    void AddPatterns(std::vector<std::string> const &patterns) { Patterns.insert(Patterns.end(), patterns.begin(), patterns.end()); };
  79    bool SetExts(string const &Vals);
  80
  81    FTWScanner(FileFd * const Output, string const &Arch = string());
  82    virtual ~FTWScanner() {};
  83 };
  84
  85 class MultiCompress;
  86
  87 class TranslationWriter
  88 {
  89    MultiCompress *Comp;
  90    std::set<string> Included;
  91    unsigned short RefCounter;
  92    FileFd *Output;
  93
  94    public:
  95    void IncreaseRefCounter() { ++RefCounter; };
  96    unsigned short DecreaseRefCounter() { return (RefCounter == 0) ? 0 : --RefCounter; };
  97    unsigned short GetRefCounter() const { return RefCounter; };
  98    bool DoPackage(string const &Pkg, string const &Desc, string const &MD5);
  99
 100    TranslationWriter(string const &File, string const &TransCompress, mode_t const &Permissions);
 101    TranslationWriter() : Comp(NULL), RefCounter(0) {};
 102    ~TranslationWriter();
 103 };
 104
 105 class PackagesWriter : public FTWScanner
 106 {
 107    Override Over;
 108    CacheDB Db;
 109
 110    public:
 111
 112    // Some flags
 113    bool DoAlwaysStat;
 114    bool NoOverride;
 115    bool DoContents;
 116    bool LongDescription;
 117
 118    // General options
 119    string PathPrefix;
 120    string DirStrip;
 121    struct CacheDB::Stats &Stats;
 122    TranslationWriter *TransWriter;
 123
 124    inline bool ReadOverride(string const &File) {return Over.ReadOverride(File);};
 125    inline bool ReadExtraOverride(string const &File)
 126       {return Over.ReadExtraOverride(File);};
 127    virtual bool DoPackage(string FileName);
 128
 129    PackagesWriter(FileFd * const Output, string const &DB,
 130                   string const &Overrides,
 131                   string const &ExtOverrides = "",
 132                   string const &Arch = "");
 133    virtual ~PackagesWriter() {};
 134 };
 135
 136 class ContentsWriter : public FTWScanner
 137 {
 138    CacheDB Db;
 139
 140    GenContents Gen;
 141
 142    public:
 143
 144    // General options
 145    struct CacheDB::Stats &Stats;
 146    string Prefix;
 147
 148    bool DoPackage(string FileName,string Package);
 149    virtual bool DoPackage(string FileName)
 150              {return DoPackage(FileName,string());};
 151    bool ReadFromPkgs(string const &PkgFile,string const &PkgCompress);
 152
 153    void Finish() {Gen.Print(*Output);};
 154    inline bool ReadyDB(string const &DB) {return Db.ReadyDB(DB);};
 155
 156    ContentsWriter(FileFd * const Output, string const &DB, string const &Arch = string());
 157    virtual ~ContentsWriter() {};
 158 };
 159
 160 class SourcesWriter : public FTWScanner
 161 {
 162    CacheDB Db;
 163    Override BOver;
 164    Override SOver;
 165    char *Buffer;
 166    unsigned long long BufSize;
 167
 168    public:
 169
 170    bool NoOverride;
 171    bool DoAlwaysStat;
 172
 173    // General options
 174    string PathPrefix;
 175    string DirStrip;
 176    struct CacheDB::Stats &Stats;
 177
 178    virtual bool DoPackage(string FileName);
 179
 180    SourcesWriter(FileFd * const Output, string const &DB,string const &BOverrides,string const &SOverrides,
 181                  string const &ExtOverrides=string());
 182    virtual ~SourcesWriter() {free(Buffer);};
 183 };
 184
 185 class ReleaseWriter : public FTWScanner
 186 {
 187 public:
 188    ReleaseWriter(FileFd * const Output, string const &DB);
 189    virtual bool DoPackage(string FileName);
 190    void Finish();
 191
 192    // General options
 193    string PathPrefix;
 194    string DirStrip;
 195
 196    struct CheckSum
 197    {
 198       HashStringList Hashes;
 199       // Limited by FileFd::Size()
 200       unsigned long long size;
 201       ~CheckSum() {};
 202    };
 203 protected:
 204    map<string,struct CheckSum> CheckSums;
 205 };
 206
 207 #endif