summaryrefslogtreecommitdiff
path: root/apt-pkg/srcrecords.cc
diff options
context:
space:
mode:
Diffstat (limited to 'apt-pkg/srcrecords.cc')
-rw-r--r--apt-pkg/srcrecords.cc139
1 files changed, 139 insertions, 0 deletions
diff --git a/apt-pkg/srcrecords.cc b/apt-pkg/srcrecords.cc
new file mode 100644
index 000000000..05be79a5a
--- /dev/null
+++ b/apt-pkg/srcrecords.cc
@@ -0,0 +1,139 @@
+// -*- mode: cpp; mode: fold -*-
+// Description /*{{{*/
+// $Id: srcrecords.cc,v 1.1 1999/04/04 01:17:29 jgg Exp $
+/* ######################################################################
+
+ Source Package Records - Allows access to source package records
+
+ Parses and allows access to the list of source records and searching by
+ source name on that list.
+
+ ##################################################################### */
+ /*}}}*/
+// Include Files /*{{{*/
+#ifdef __GNUG__
+#pragma implementation "apt-pkg/srcrecords.h"
+#endif
+
+#include <apt-pkg/srcrecords.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/debsrcrecords.h>
+ /*}}}*/
+
+// SrcRecords::pkgSrcRecords - Constructor /*{{{*/
+// ---------------------------------------------------------------------
+/* Open all the source index files */
+pkgSrcRecords::pkgSrcRecords(pkgSourceList &List) : Files(0), Current(0)
+{
+ pkgSourceList::const_iterator I = List.begin();
+
+ // Count how many items we will need
+ unsigned int Count = 0;
+ for (; I != List.end(); I++)
+ if (I->Type == pkgSourceList::Item::DebSrc)
+ Count++;
+
+ // Doesnt work without any source index files
+ if (Count == 0)
+ {
+ _error->Error("Sorry, you must put some 'source' uris"
+ " in your sources.list");
+ return;
+ }
+
+ Files = new Parser *[Count+1];
+ memset(Files,0,sizeof(*Files)*(Count+1));
+
+ // Create the parser objects
+ Count = 0;
+ string Dir = _config->FindDir("Dir::State::lists");
+ for (I = List.begin(); I != List.end(); I++)
+ {
+ if (I->Type != pkgSourceList::Item::DebSrc)
+ continue;
+
+ // Open the file
+ FileFd *FD = new FileFd(Dir + URItoFileName(I->PackagesURI()),
+ FileFd::ReadOnly);
+ if (_error->PendingError() == true)
+ {
+ delete FD;
+ return;
+ }
+
+ Files[Count] = new debSrcRecordParser(FD);
+ Count++;
+ }
+
+ Restart();
+}
+ /*}}}*/
+// SrcRecords::~pkgSrcRecords - Destructor /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+pkgSrcRecords::~pkgSrcRecords()
+{
+ if (Files == 0)
+ return;
+
+ // Blow away all the parser objects
+ for (unsigned int Count = 0; Files[Count] != 0; Count++)
+ delete Files[Count];
+}
+ /*}}}*/
+// SrcRecords::Restart - Restart the search /*{{{*/
+// ---------------------------------------------------------------------
+/* Return all of the parsers to their starting position */
+bool pkgSrcRecords::Restart()
+{
+ Current = Files;
+ for (Parser **I = Files; *I != 0; I++)
+ if ((*I)->Restart() == false)
+ return false;
+ return true;
+}
+ /*}}}*/
+// SrcRecords::Find - Find the first source package with the given name /*{{{*/
+// ---------------------------------------------------------------------
+/* This searches on both source package names and output binary names and
+ returns the first found. A 'cursor' like system is used to allow this
+ function to be called multiple times to get successive entries */
+pkgSrcRecords::Parser *pkgSrcRecords::Find(const char *Package,bool SrcOnly)
+{
+ if (*Current == 0)
+ return 0;
+
+ while (true)
+ {
+ // Step to the next record, possibly switching files
+ while ((*Current)->Step() == false)
+ {
+ if (_error->PendingError() == true)
+ return 0;
+ Current++;
+ if (*Current == 0)
+ return 0;
+ }
+
+ // IO error somehow
+ if (_error->PendingError() == true)
+ return 0;
+
+ // Source name hit
+ if ((*Current)->Package() == Package)
+ return *Current;
+
+ if (SrcOnly == true)
+ continue;
+
+ // Check for a binary hit
+ const char **I = (*Current)->Binaries();
+ for (; I != 0 && *I != 0; I++)
+ if (strcmp(Package,*I) == 0)
+ return *Current;
+ }
+}
+ /*}}}*/
+