| 1 | // -*- mode: cpp; mode: fold -*- |
| 2 | // Description /*{{{*/ |
| 3 | // $Id: srcrecords.cc,v 1.7.2.2 2003/12/26 16:27:34 mdz Exp $ |
| 4 | /* ###################################################################### |
| 5 | |
| 6 | Source Package Records - Allows access to source package records |
| 7 | |
| 8 | Parses and allows access to the list of source records and searching by |
| 9 | source name on that list. |
| 10 | |
| 11 | ##################################################################### */ |
| 12 | /*}}}*/ |
| 13 | // Include Files /*{{{*/ |
| 14 | #include<config.h> |
| 15 | |
| 16 | #include <apt-pkg/srcrecords.h> |
| 17 | #include <apt-pkg/error.h> |
| 18 | #include <apt-pkg/sourcelist.h> |
| 19 | #include <apt-pkg/metaindex.h> |
| 20 | #include <apt-pkg/indexfile.h> |
| 21 | #include <apt-pkg/macros.h> |
| 22 | |
| 23 | #include <string.h> |
| 24 | #include <string> |
| 25 | #include <vector> |
| 26 | |
| 27 | #include <apti18n.h> |
| 28 | /*}}}*/ |
| 29 | |
| 30 | // SrcRecords::pkgSrcRecords - Constructor /*{{{*/ |
| 31 | // --------------------------------------------------------------------- |
| 32 | /* Open all the source index files */ |
| 33 | pkgSrcRecords::pkgSrcRecords(pkgSourceList &List) : d(NULL), Files(0), Current(0) |
| 34 | { |
| 35 | for (pkgSourceList::const_iterator I = List.begin(); I != List.end(); ++I) |
| 36 | { |
| 37 | std::vector<pkgIndexFile *> *Indexes = (*I)->GetIndexFiles(); |
| 38 | for (std::vector<pkgIndexFile *>::const_iterator J = Indexes->begin(); |
| 39 | J != Indexes->end(); ++J) |
| 40 | { |
| 41 | Parser* P = (*J)->CreateSrcParser(); |
| 42 | if (_error->PendingError() == true) |
| 43 | return; |
| 44 | if (P != 0) |
| 45 | Files.push_back(P); |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | // Doesn't work without any source index files |
| 50 | if (Files.empty() == true) |
| 51 | { |
| 52 | _error->Error(_("You must put some 'source' URIs" |
| 53 | " in your sources.list")); |
| 54 | return; |
| 55 | } |
| 56 | |
| 57 | Restart(); |
| 58 | } |
| 59 | /*}}}*/ |
| 60 | // SrcRecords::~pkgSrcRecords - Destructor /*{{{*/ |
| 61 | // --------------------------------------------------------------------- |
| 62 | /* */ |
| 63 | pkgSrcRecords::~pkgSrcRecords() |
| 64 | { |
| 65 | // Blow away all the parser objects |
| 66 | for(std::vector<Parser*>::iterator I = Files.begin(); I != Files.end(); ++I) |
| 67 | delete *I; |
| 68 | } |
| 69 | /*}}}*/ |
| 70 | // SrcRecords::Restart - Restart the search /*{{{*/ |
| 71 | // --------------------------------------------------------------------- |
| 72 | /* Return all of the parsers to their starting position */ |
| 73 | bool pkgSrcRecords::Restart() |
| 74 | { |
| 75 | Current = Files.begin(); |
| 76 | for (std::vector<Parser*>::iterator I = Files.begin(); |
| 77 | I != Files.end(); ++I) |
| 78 | if ((*I)->Offset() != 0) |
| 79 | (*I)->Restart(); |
| 80 | |
| 81 | return true; |
| 82 | } |
| 83 | /*}}}*/ |
| 84 | // SrcRecords::Next - Step to the next Source Record /*{{{*/ |
| 85 | // --------------------------------------------------------------------- |
| 86 | /* Step to the next source package record */ |
| 87 | const pkgSrcRecords::Parser* pkgSrcRecords::Next() |
| 88 | { |
| 89 | if (Current == Files.end()) |
| 90 | return 0; |
| 91 | |
| 92 | // Step to the next record, possibly switching files |
| 93 | while ((*Current)->Step() == false) |
| 94 | { |
| 95 | if (_error->PendingError() == true) |
| 96 | return 0; |
| 97 | ++Current; |
| 98 | if (Current == Files.end()) |
| 99 | return 0; |
| 100 | } |
| 101 | |
| 102 | return *Current; |
| 103 | } |
| 104 | /*}}}*/ |
| 105 | // SrcRecords::Find - Find the first source package with the given name /*{{{*/ |
| 106 | // --------------------------------------------------------------------- |
| 107 | /* This searches on both source package names and output binary names and |
| 108 | returns the first found. A 'cursor' like system is used to allow this |
| 109 | function to be called multiple times to get successive entries */ |
| 110 | pkgSrcRecords::Parser *pkgSrcRecords::Find(const char *Package,bool const &SrcOnly) |
| 111 | { |
| 112 | while (true) |
| 113 | { |
| 114 | if(Next() == 0) |
| 115 | return 0; |
| 116 | |
| 117 | // IO error somehow |
| 118 | if (_error->PendingError() == true) |
| 119 | return 0; |
| 120 | |
| 121 | // Source name hit |
| 122 | if ((*Current)->Package() == Package) |
| 123 | return *Current; |
| 124 | |
| 125 | if (SrcOnly == true) |
| 126 | continue; |
| 127 | |
| 128 | // Check for a binary hit |
| 129 | const char **I = (*Current)->Binaries(); |
| 130 | for (; I != 0 && *I != 0; ++I) |
| 131 | if (strcmp(Package,*I) == 0) |
| 132 | return *Current; |
| 133 | } |
| 134 | } |
| 135 | /*}}}*/ |
| 136 | // Parser::BuildDepType - Convert a build dep to a string /*{{{*/ |
| 137 | // --------------------------------------------------------------------- |
| 138 | /* */ |
| 139 | const char *pkgSrcRecords::Parser::BuildDepType(unsigned char const &Type) |
| 140 | { |
| 141 | const char *fields[] = {"Build-Depends", |
| 142 | "Build-Depends-Indep", |
| 143 | "Build-Conflicts", |
| 144 | "Build-Conflicts-Indep"}; |
| 145 | if (unlikely(Type >= sizeof(fields)/sizeof(fields[0]))) |
| 146 | return ""; |
| 147 | return fields[Type]; |
| 148 | } |
| 149 | /*}}}*/ |
| 150 | |
| 151 | |