]> git.saurik.com Git - apt-legacy.git/blob - apt-pkg/srcrecords.cc
6cac477ef6e4f6098769fa42eceaeedf4b81f37c
[apt-legacy.git] / apt-pkg / srcrecords.cc
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 #ifdef __GNUG__
15 #pragma implementation "apt-pkg/srcrecords.h"
16 #endif
17
18 #include <apt-pkg/srcrecords.h>
19 #include <apt-pkg/error.h>
20 #include <apt-pkg/sourcelist.h>
21 #include <apt-pkg/strutl.h>
22
23 #include <apti18n.h>
24 /*}}}*/
25
26 // SrcRecords::pkgSrcRecords - Constructor /*{{{*/
27 // ---------------------------------------------------------------------
28 /* Open all the source index files */
29 pkgSrcRecords::pkgSrcRecords(pkgSourceList &List) : Files(0), Current(0)
30 {
31 for (pkgSourceList::const_iterator I = List.begin(); I != List.end(); I++)
32 {
33 vector<pkgIndexFile *> *Indexes = (*I)->GetIndexFiles();
34 for (vector<pkgIndexFile *>::const_iterator J = Indexes->begin();
35 J != Indexes->end(); J++)
36 {
37 Parser* P = (*J)->CreateSrcParser();
38 if (_error->PendingError() == true)
39 return;
40 if (P != 0)
41 Files.push_back(P);
42 }
43 }
44
45 // Doesn't work without any source index files
46 if (Files.size() == 0)
47 {
48 _error->Error(_("You must put some 'source' URIs"
49 " in your sources.list"));
50 return;
51 }
52
53 Restart();
54 }
55 /*}}}*/
56 // SrcRecords::~pkgSrcRecords - Destructor /*{{{*/
57 // ---------------------------------------------------------------------
58 /* */
59 pkgSrcRecords::~pkgSrcRecords()
60 {
61 // Blow away all the parser objects
62 for(vector<Parser*>::iterator I = Files.begin(); I != Files.end(); ++I)
63 delete *I;
64 }
65 /*}}}*/
66 // SrcRecords::Restart - Restart the search /*{{{*/
67 // ---------------------------------------------------------------------
68 /* Return all of the parsers to their starting position */
69 bool pkgSrcRecords::Restart()
70 {
71 Current = Files.begin();
72 for (vector<Parser*>::iterator I = Files.begin();
73 I != Files.end(); I++)
74 (*I)->Restart();
75
76 return true;
77 }
78 /*}}}*/
79 // SrcRecords::Find - Find the first source package with the given name /*{{{*/
80 // ---------------------------------------------------------------------
81 /* This searches on both source package names and output binary names and
82 returns the first found. A 'cursor' like system is used to allow this
83 function to be called multiple times to get successive entries */
84 pkgSrcRecords::Parser *pkgSrcRecords::Find(const char *Package,bool SrcOnly)
85 {
86 if (Current == Files.end())
87 return 0;
88
89 while (true)
90 {
91 // Step to the next record, possibly switching files
92 while ((*Current)->Step() == false)
93 {
94 if (_error->PendingError() == true)
95 return 0;
96 Current++;
97 if (Current == Files.end())
98 return 0;
99 }
100
101 // IO error somehow
102 if (_error->PendingError() == true)
103 return 0;
104
105 // Source name hit
106 if ((*Current)->Package() == Package)
107 return *Current;
108
109 if (SrcOnly == true)
110 continue;
111
112 // Check for a binary hit
113 const char **I = (*Current)->Binaries();
114 for (; I != 0 && *I != 0; I++)
115 if (strcmp(Package,*I) == 0)
116 return *Current;
117 }
118 }
119 /*}}}*/
120 // Parser::BuildDepType - Convert a build dep to a string /*{{{*/
121 // ---------------------------------------------------------------------
122 /* */
123 const char *pkgSrcRecords::Parser::BuildDepType(unsigned char Type)
124 {
125 const char *fields[] = {"Build-Depends",
126 "Build-Depends-Indep",
127 "Build-Conflicts",
128 "Build-Conflicts-Indep"};
129 if (Type < 4)
130 return fields[Type];
131 else
132 return "";
133 }
134 /*}}}*/
135
136