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 #ifdef __GNUG__
  17 #endif
  18
  19 #include <string>
  20 #include <stdio.h>
  21 #include <iostream>
  22 #include <vector>
  23 #include <map>
  24
  25 #include "cachedb.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    const char *OriginalPath;
  40    char *RealPath;
  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 ReadLink);
  49
  50    bool Delink(string &FileName,const char *OriginalPath,
  51                unsigned long &Bytes,off_t FileSize);
  52
  53    inline void NewLine(unsigned Priority)
  54    {
  55       if (ErrorPrinted == false && Quiet <= Priority)
  56       {
  57          cout << 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 Dir);
  69    bool LoadFileList(string BaseDir,string File);
  70    void ClearPatterns() { Patterns.clear(); };
  71    void AddPattern(string Pattern) { Patterns.push_back(Pattern); };
  72    bool SetExts(string Vals);
  73
  74    FTWScanner();
  75    virtual ~FTWScanner() {delete [] RealPath;};
  76 };
  77
  78 class PackagesWriter : public FTWScanner
  79 {
  80    Override Over;
  81    CacheDB Db;
  82
  83    public:
  84
  85    // Some flags
  86    bool DoMD5;
  87    bool DoSHA1;
  88    bool DoSHA256;
  89    bool NoOverride;
  90    bool DoContents;
  91
  92    // General options
  93    string PathPrefix;
  94    string DirStrip;
  95    FILE *Output;
  96    struct CacheDB::Stats &Stats;
  97    string Arch;
  98
  99    inline bool ReadOverride(string File) {return Over.ReadOverride(File);};
 100    inline bool ReadExtraOverride(string File)
 101       {return Over.ReadExtraOverride(File);};
 102    virtual bool DoPackage(string FileName);
 103
 104    PackagesWriter(string DB,string Overrides,string ExtOverrides=string(),
 105                   string Arch=string());
 106    virtual ~PackagesWriter() {};
 107 };
 108
 109 class ContentsWriter : public FTWScanner
 110 {
 111    CacheDB Db;
 112
 113    GenContents Gen;
 114
 115    public:
 116
 117    // General options
 118    FILE *Output;
 119    struct CacheDB::Stats &Stats;
 120    string Prefix;
 121
 122    bool DoPackage(string FileName,string Package);
 123    virtual bool DoPackage(string FileName)
 124              {return DoPackage(FileName,string());};
 125    bool ReadFromPkgs(string PkgFile,string PkgCompress);
 126
 127    void Finish() {Gen.Print(Output);};
 128    inline bool ReadyDB(string DB) {return Db.ReadyDB(DB);};
 129
 130    ContentsWriter(string DB);
 131    virtual ~ContentsWriter() {};
 132 };
 133
 134 class SourcesWriter : public FTWScanner
 135 {
 136    Override BOver;
 137    Override SOver;
 138    char *Buffer;
 139    unsigned long BufSize;
 140
 141    public:
 142
 143    bool NoOverride;
 144
 145    // General options
 146    string PathPrefix;
 147    string DirStrip;
 148    FILE *Output;
 149    struct CacheDB::Stats Stats;
 150
 151    virtual bool DoPackage(string FileName);
 152
 153    SourcesWriter(string BOverrides,string SOverrides,
 154                  string ExtOverrides=string());
 155    virtual ~SourcesWriter() {free(Buffer);};
 156 };
 157
 158 class ReleaseWriter : public FTWScanner
 159 {
 160 public:
 161    ReleaseWriter(string DB);
 162    virtual bool DoPackage(string FileName);
 163    void Finish();
 164
 165    FILE *Output;
 166    // General options
 167    string PathPrefix;
 168    string DirStrip;
 169
 170 protected:
 171    struct CheckSum
 172    {
 173       string MD5;
 174       string SHA1;
 175       string SHA256;
 176       // Limited by FileFd::Size()
 177       unsigned long size;
 178       ~CheckSum() {};
 179    };
 180    map<string,struct CheckSum> CheckSums;
 181 };
 182
 183 #endif