Working cache generator

Author: jgg
Date: 1998-07-16 06:08:36 GMT
Working cache generator

apt-pkg/contrib/strutl.cc

@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description								/*{{{*/
-// $Id: strutl.cc,v 1.1 1998/07/07 04:17:16 jgg Exp $
+// $Id: strutl.cc,v 1.2 1998/07/16 06:08:41 jgg Exp $
 /* ######################################################################
 
    String Util - Some usefull string functions.
@@ -226,7 +226,7 @@ string TimeToStr(unsigned long Sec)
 /* This replaces all occurances of Subst with Contents in Str. */
 string SubstVar(string Str,string Subst,string Contents)
 {
-   string::size_type Pos;
+   string::size_type Pos = 0;
    string::size_type OldPos = 0;
    string Temp;
    

apt-pkg/deb/deblistparser.cc

@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description								/*{{{*/
-// $Id: deblistparser.cc,v 1.6 1998/07/12 23:58:52 jgg Exp $
+// $Id: deblistparser.cc,v 1.7 1998/07/16 06:08:42 jgg Exp $
 /* ######################################################################
    
    Package Cache Generator - Generator for the cache structure.
@@ -162,7 +162,7 @@ bool debListParser::NewVersion(pkgCache::VerIterator Ver)
 
    if (ParseDepends(Ver,"Depends",pkgCache::Dep::Depends) == false)
       return false;
-   if (ParseDepends(Ver,"PreDepends",pkgCache::Dep::PreDepends) == false)
+   if (ParseDepends(Ver,"Pre-Depends",pkgCache::Dep::PreDepends) == false)
       return false;
    if (ParseDepends(Ver,"Suggests",pkgCache::Dep::Suggests) == false)
       return false;
@@ -426,13 +426,16 @@ bool debListParser::ParseDepends(pkgCache::VerIterator Ver,
    string Version;
    unsigned int Op;
 
-   while ((Start = ParseDepends(Start,Stop,Package,Version,Op)) != Stop)
+   while (1)
    {
+      Start = ParseDepends(Start,Stop,Package,Version,Op);
       if (Start == 0)
 	 return _error->Error("Problem parsing dependency %s",Tag);
-
+      
       if (NewDepends(Ver,Package,Version,Op,Type) == false)
 	 return false;
+      if (Start == Stop)
+	 break;
    }
    return true;
 }

apt-pkg/init.cc

@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description								/*{{{*/
-// $Id: init.cc,v 1.2 1998/07/12 23:58:26 jgg Exp $
+// $Id: init.cc,v 1.3 1998/07/16 06:08:36 jgg Exp $
 /* ######################################################################
 
    Init - Initialize the package library
@@ -11,12 +11,12 @@
 #include <apt-pkg/init.h>
 									/*}}}*/
 
-// pkglibInitialize - Initialize the configuration class		/*{{{*/
+// pkgInitialize - Initialize the configuration class			/*{{{*/
 // ---------------------------------------------------------------------
 /* Directories are specified in such a way that the FindDir function will
    understand them. That is, if they don't start with a / then their parent
    is prepended, this allows a fair degree of flexability. */
-bool pkglibInitialize(Configuration &Cnf)
+bool pkgInitialize(Configuration &Cnf)
 {
    // General APT things
    Cnf.Set("APT::Architecture","i386");

apt-pkg/init.h

@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description								/*{{{*/
-// $Id: init.h,v 1.2 1998/07/12 23:58:27 jgg Exp $
+// $Id: init.h,v 1.3 1998/07/16 06:08:37 jgg Exp $
 /* ######################################################################
 
    Init - Initialize the package library
@@ -16,6 +16,6 @@
 
 #include <apt-pkg/configuration.h>
 
-bool pkglibInitialize(Configuration &Cnf);
+bool pkgInitialize(Configuration &Cnf);
 
 #endif

apt-pkg/pkgcachegen.cc

@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description								/*{{{*/
-// $Id: pkgcachegen.cc,v 1.9 1998/07/12 23:58:34 jgg Exp $
+// $Id: pkgcachegen.cc,v 1.10 1998/07/16 06:08:38 jgg Exp $
 /* ######################################################################
    
    Package Cache Generator - Generator for the cache structure.
@@ -69,12 +69,8 @@ bool pkgCacheGenerator::MergeList(ListParser &List)
       // Get a pointer to the package structure
       string PackageName = List.Package();
       pkgCache::PkgIterator Pkg;
-      Cache.FindPkg(PackageName);
-      if (Pkg.end() == true)
-      {
-	 if (NewPackage(Pkg,PackageName) == false)
-	    return false;
-      }
+      if (NewPackage(Pkg,PackageName) == false)
+	 return false;
       
       /* Get a pointer to the version structure. We know the list is sorted
          so we use that fact in the search. Insertion of new versions is
@@ -132,6 +128,10 @@ bool pkgCacheGenerator::MergeList(ListParser &List)
 /* This creates a new package structure and adds it to the hash table */
 bool pkgCacheGenerator::NewPackage(pkgCache::PkgIterator &Pkg,string Name)
 {
+   Pkg = Cache.FindPkg(Name);
+   if (Pkg.end() == false)
+      return true;
+       
    // Get a structure
    unsigned long Package = Map.Allocate(sizeof(pkgCache::Package));
    if (Package == 0)
@@ -222,10 +222,9 @@ bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver,
    Dep->ID = Cache.HeaderP->DependsCount++;
    
    // Locate the target package
-   pkgCache::PkgIterator Pkg = Cache.FindPkg(PackageName);
-   if (Pkg.end() == true)
-      if (Owner->NewPackage(Pkg,PackageName) == false)
-	 return false;
+   pkgCache::PkgIterator Pkg;
+   if (Owner->NewPackage(Pkg,PackageName) == false)
+      return false;
    
    // Probe the reverse dependency list for a version string that matches
    if (Version.empty() == false)
@@ -257,10 +256,14 @@ bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver,
 // ---------------------------------------------------------------------
 /* */
 bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator Ver,
-					       string PackageName,
+					        string PackageName,
 						string Version)
 {
    pkgCache &Cache = Owner->Cache;
+
+   // We do not add self referencing provides
+   if (Ver.ParentPkg().Name() == PackageName)
+      return true;
    
    // Get a structure
    unsigned long Provides = Owner->Map.Allocate(sizeof(pkgCache::Provides));
@@ -276,10 +279,9 @@ bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator Ver,
       return false;
    
    // Locate the target package
-   pkgCache::PkgIterator Pkg = Cache.FindPkg(PackageName);
-   if (Pkg.end() == true)
-      if (Owner->NewPackage(Pkg,PackageName) == false)
-	 return false;
+   pkgCache::PkgIterator Pkg;
+   if (Owner->NewPackage(Pkg,PackageName) == false)
+      return false;
    
    // Link it to the package
    Prv->ParentPkg = Pkg.Index();
@@ -314,6 +316,7 @@ bool pkgCacheGenerator::SelectFile(string File,unsigned long Flags)
 
    if (CurrentFile->FileName == 0)
       return false;
+   return true;
 }
 									/*}}}*/
 // CacheGenerator::WriteUniqueString - Insert a unique string		/*{{{*/

apt-pkg/tagfile.cc

@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description								/*{{{*/
-// $Id: tagfile.cc,v 1.7 1998/07/12 23:58:39 jgg Exp $
+// $Id: tagfile.cc,v 1.8 1998/07/16 06:08:39 jgg Exp $
 /* ######################################################################
 
    Fast scanner for RFC-822 type header information
@@ -17,7 +17,6 @@
 
 #include <apt-pkg/tagfile.h>
 #include <apt-pkg/error.h>
-#include <apt-pkg/init.h>
 
 #include <string>
 #include <stdio.h>

apt-pkg/tagfile.h

@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description								/*{{{*/
-// $Id: tagfile.h,v 1.4 1998/07/12 23:58:40 jgg Exp $
+// $Id: tagfile.h,v 1.5 1998/07/16 06:08:40 jgg Exp $
 /* ######################################################################
 
    Fast scanner for RFC-822 type header information
@@ -50,7 +50,7 @@ class pkgTagSection
 
 class pkgTagFile
 {
-   File Fd;
+   File &Fd;
    char *Buffer;
    char *Start;
    char *End;

cmdline/apt-cache.cc

@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description								/*{{{*/
-// $Id: apt-cache.cc,v 1.1 1998/07/15 05:56:47 jgg Exp $
+// $Id: apt-cache.cc,v 1.2 1998/07/16 06:08:43 jgg Exp $
 /* ######################################################################
    
    apt-cache - Manages the cache file.
@@ -27,6 +27,7 @@
 #include <apt-pkg/error.h>
 #include <apt-pkg/pkgcachegen.h>
 #include <apt-pkg/deblistparser.h>
+#include <apt-pkg/init.h>
 
 #include <iostream.h>
 #include <fstream.h>
@@ -89,17 +90,19 @@ bool DoAdd(int argc,char *argv[])
    {
       if (SplitArg(argv[I],FileName,Dist,Ver) == false)
 	 return false;
+      cout << FileName << endl;
       
       // Do the merge
       File TagF(FileName.c_str(),File::ReadOnly);
       debListParser Parser(TagF);
       if (_error->PendingError() == true)
-	 return false;
+	 return _error->Error("Problem opening %s",FileName.c_str());
+      
       if (Gen.SelectFile(FileName) == false)
-	 return false;
+	 return _error->Error("Problem with SelectFile");
 	 
       if (Gen.MergeList(Parser) == false)
-	 return false;
+	 return _error->Error("Problem with MergeList");
    }
    
    return true;
@@ -157,7 +160,11 @@ bool DumpPackage(int argc,char *argv[])
 	 for (pkgCache::PrvIterator Prv = Cur.ProvidesList(); Prv.end() != true; Prv++)
 	    cout << Prv.ParentPkg().Name() << " ";
 	 cout << endl;
-      }      
+      }
+      cout << "Reverse Provides: " << endl;
+      for (pkgCache::PrvIterator Prv = Pkg.ProvidesList(); Prv.end() != true; Prv++)
+	 cout << Prv.OwnerPkg().Name() << " " << Prv.OwnerVer().VerStr();
+      cout << endl;
    }
 
    return true;
@@ -333,7 +340,8 @@ int main(int argc, char *argv[])
       cerr << "Usage is apt-cache add cache file1:dist:ver file2:dist:ver ..." << endl;
       return 100;
    }
-   
+
+   pkgInitialize(*_config);
    while (1)
    {
       if (strcmp(argv[1],"add") == 0)