// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: apt-cache.cc,v 1.26 1999/02/15 04:48:09 jgg Exp $
+// $Id: apt-cache.cc,v 1.43 2000/05/12 04:00:59 jgg Exp $
/* ######################################################################
apt-cache - Manages the cache files
apt-cache provides some functions fo manipulating the cache files.
It uses the command line interface common to all the APT tools. The
only really usefull function right now is dumpavail which is used
- by the dselect method. Everything else is ment as a debug aide.
+ by the dselect method. Everything else is meant as a debug aide.
Returns 100 on failure, 0 on success.
#include <apt-pkg/sourcelist.h>
#include <apt-pkg/cmndline.h>
#include <apt-pkg/strutl.h>
+#include <apt-pkg/pkgrecords.h>
+#include <apt-pkg/srcrecords.h>
+#include <apt-pkg/version.h>
#include <config.h>
#include <iostream.h>
#include <unistd.h>
#include <errno.h>
+#include <regex.h>
+#include <stdio.h>
/*}}}*/
pkgCache *GCache = 0;
}
cout << "Reverse Provides: " << endl;
for (pkgCache::PrvIterator Prv = Pkg.ProvidesList(); Prv.end() != true; Prv++)
- cout << Prv.OwnerPkg().Name() << " " << Prv.OwnerVer().VerStr();
- cout << endl;
-
+ cout << Prv.OwnerPkg().Name() << " " << Prv.OwnerVer().VerStr() << endl;
}
return true;
return true;
}
/*}}}*/
-// GetCandidateVer - Returns the Candidate install version /*{{{*/
-// ---------------------------------------------------------------------
-/* This should really use the DepCache or something.. Copied from there. */
-static pkgCache::VerIterator GetCandidateVer(pkgCache::PkgIterator Pkg)
-{
- /* Not source/not automatic versions cannot be a candidate version
- unless they are already installed */
- for (pkgCache::VerIterator I = Pkg.VersionList(); I.end() == false; I++)
- {
- if (Pkg.CurrentVer() == I)
- return I;
- for (pkgCache::VerFileIterator J = I.FileList(); J.end() == false; J++)
- if ((J.File()->Flags & pkgCache::Flag::NotSource) == 0 &&
- (J.File()->Flags & pkgCache::Flag::NotAutomatic) == 0)
- return I;
- }
-
- return pkgCache::VerIterator(*GCache,0);
-}
- /*}}}*/
// DumpAvail - Print out the available list /*{{{*/
// ---------------------------------------------------------------------
/* This is needed to make dpkg --merge happy */
for (pkgCache::PkgIterator P = Cache.PkgBegin(); P.end() == false; P++)
{
// Find the proper version to use. We should probably use the DepCache.
- pkgCache::VerIterator V = GetCandidateVer(P);
+ pkgCache::VerIterator V = Cache.GetCandidateVer(P,false);
if (V.end() == true || V.FileList().File() != I)
continue;
}
}
+ return true;
+}
+ /*}}}*/
+// Depends - Print out a dependency tree /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool Depends(CommandLine &CmdL)
+{
+ pkgCache &Cache = *GCache;
+
+ for (const char **I = CmdL.FileList + 1; *I != 0; I++)
+ {
+ pkgCache::PkgIterator Pkg = Cache.FindPkg(*I);
+ if (Pkg.end() == true)
+ {
+ _error->Warning("Unable to locate package %s",*I);
+ continue;
+ }
+
+ pkgCache::VerIterator Ver = Pkg.VersionList();
+ if (Ver.end() == true)
+ {
+ cout << '<' << Pkg.Name() << '>' << endl;
+ continue;
+ }
+
+ cout << Pkg.Name() << endl;
+
+ for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; D++)
+ {
+ if ((D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or)
+ cout << " |";
+ else
+ cout << " ";
+
+ // Show the package
+ pkgCache::PkgIterator Trg = D.TargetPkg();
+ if (Trg->VersionList == 0)
+ cout << D.DepType() << ": <" << Trg.Name() << ">" << endl;
+ else
+ cout << D.DepType() << ": " << Trg.Name() << endl;
+
+ // Display all solutions
+ pkgCache::Version **List = D.AllTargets();
+ for (pkgCache::Version **I = List; *I != 0; I++)
+ {
+ pkgCache::VerIterator V(Cache,*I);
+ if (V != Cache.VerP + V.ParentPkg()->VersionList ||
+ V->ParentPkg == D->Package)
+ continue;
+ cout << " " << V.ParentPkg().Name() << endl;
+ }
+ delete [] List;
+ }
+ }
+
+ return true;
+}
+ /*}}}*/
+// Dotty - Generate a graph for Dotty /*{{{*/
+// ---------------------------------------------------------------------
+/* Dotty is the graphvis program for generating graphs. It is a fairly
+ simple queuing algorithm that just writes dependencies and nodes.
+ http://www.research.att.com/sw/tools/graphviz/ */
+bool Dotty(CommandLine &CmdL)
+{
+ pkgCache &Cache = *GCache;
+ bool GivenOnly = _config->FindB("APT::Cache::GivenOnly",false);
+
+ /* Normal packages are boxes
+ Pure Provides are triangles
+ Mixed are diamonds
+ Hexagons are missing packages*/
+ const char *Shapes[] = {"hexagon","triangle","box","diamond"};
+
+ /* Initialize the list of packages to show.
+ 1 = To Show
+ 2 = To Show no recurse
+ 3 = Emitted no recurse
+ 4 = Emitted
+ 0 = None */
+ enum States {None=0, ToShow, ToShowNR, DoneNR, Done};
+ enum TheFlags {ForceNR=(1<<0)};
+ unsigned char *Show = new unsigned char[Cache.Head().PackageCount];
+ unsigned char *Flags = new unsigned char[Cache.Head().PackageCount];
+ unsigned char *ShapeMap = new unsigned char[Cache.Head().PackageCount];
+
+ // Show everything if no arguments given
+ if (CmdL.FileList[1] == 0)
+ for (unsigned long I = 0; I != Cache.Head().PackageCount; I++)
+ Show[I] = ToShow;
+ else
+ for (unsigned long I = 0; I != Cache.Head().PackageCount; I++)
+ Show[I] = None;
+ memset(Flags,0,sizeof(*Flags)*Cache.Head().PackageCount);
+
+ // Map the shapes
+ for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); Pkg.end() == false; Pkg++)
+ {
+ if (Pkg->VersionList == 0)
+ {
+ // Missing
+ if (Pkg->ProvidesList == 0)
+ ShapeMap[Pkg->ID] = 0;
+ else
+ ShapeMap[Pkg->ID] = 1;
+ }
+ else
+ {
+ // Normal
+ if (Pkg->ProvidesList == 0)
+ ShapeMap[Pkg->ID] = 2;
+ else
+ ShapeMap[Pkg->ID] = 3;
+ }
+ }
+
+ // Load the list of packages from the command line into the show list
+ for (const char **I = CmdL.FileList + 1; *I != 0; I++)
+ {
+ // Process per-package flags
+ string P = *I;
+ bool Force = false;
+ if (P.length() > 3)
+ {
+ if (P.end()[-1] == '^')
+ {
+ Force = true;
+ P.erase(P.end()-1);
+ }
+
+ if (P.end()[-1] == ',')
+ P.erase(P.end()-1);
+ }
+
+ // Locate the package
+ pkgCache::PkgIterator Pkg = Cache.FindPkg(P);
+ if (Pkg.end() == true)
+ {
+ _error->Warning("Unable to locate package %s",*I);
+ continue;
+ }
+ Show[Pkg->ID] = ToShow;
+
+ if (Force == true)
+ Flags[Pkg->ID] |= ForceNR;
+ }
+
+ // Little header
+ printf("digraph packages {\n");
+ printf("concentrate=true;\n");
+ printf("size=\"30,40\";\n");
+
+ bool Act = true;
+ while (Act == true)
+ {
+ Act = false;
+ for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); Pkg.end() == false; Pkg++)
+ {
+ // See we need to show this package
+ if (Show[Pkg->ID] == None || Show[Pkg->ID] >= DoneNR)
+ continue;
+
+ // Colour as done
+ if (Show[Pkg->ID] == ToShowNR || (Flags[Pkg->ID] & ForceNR) == ForceNR)
+ {
+ // Pure Provides and missing packages have no deps!
+ if (ShapeMap[Pkg->ID] == 0 || ShapeMap[Pkg->ID] == 1)
+ Show[Pkg->ID] = Done;
+ else
+ Show[Pkg->ID] = DoneNR;
+ }
+ else
+ Show[Pkg->ID] = Done;
+ Act = true;
+
+ // No deps to map out
+ if (Pkg->VersionList == 0 || Show[Pkg->ID] == DoneNR)
+ continue;
+
+ pkgCache::VerIterator Ver = Pkg.VersionList();
+ for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; D++)
+ {
+ // See if anything can meet this dep
+ // Walk along the actual package providing versions
+ bool Hit = false;
+ pkgCache::PkgIterator DPkg = D.TargetPkg();
+ for (pkgCache::VerIterator I = DPkg.VersionList();
+ I.end() == false && Hit == false; I++)
+ {
+ if (pkgCheckDep(D.TargetVer(),I.VerStr(),D->CompareOp) == true)
+ Hit = true;
+ }
+
+ // Follow all provides
+ for (pkgCache::PrvIterator I = DPkg.ProvidesList();
+ I.end() == false && Hit == false; I++)
+ {
+ if (pkgCheckDep(D.TargetVer(),I.ProvideVersion(),D->CompareOp) == false)
+ Hit = true;
+ }
+
+ // Only graph critical deps
+ if (D.IsCritical() == true)
+ {
+ printf("\"%s\" -> \"%s\"",Pkg.Name(),D.TargetPkg().Name());
+
+ // Colour the node for recursion
+ if (Show[D.TargetPkg()->ID] <= DoneNR)
+ {
+ /* If a conflicts does not meet anything in the database
+ then show the relation but do not recurse */
+ if (Hit == false && D->Type == pkgCache::Dep::Conflicts)
+ {
+ if (Show[D.TargetPkg()->ID] == None &&
+ Show[D.TargetPkg()->ID] != ToShow)
+ Show[D.TargetPkg()->ID] = ToShowNR;
+ }
+ else
+ {
+ if (GivenOnly == true && Show[D.TargetPkg()->ID] != ToShow)
+ Show[D.TargetPkg()->ID] = ToShowNR;
+ else
+ Show[D.TargetPkg()->ID] = ToShow;
+ }
+ }
+
+ // Edge colour
+ switch(D->Type)
+ {
+ case pkgCache::Dep::Conflicts:
+ printf("[color=springgreen];\n");
+ break;
+
+ case pkgCache::Dep::PreDepends:
+ printf("[color=blue];\n");
+ break;
+
+ default:
+ printf(";\n");
+ break;
+ }
+ }
+ }
+ }
+ }
+
+ /* Draw the box colours after the fact since we can not tell what colour
+ they should be until everything is finished drawing */
+ for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); Pkg.end() == false; Pkg++)
+ {
+ if (Show[Pkg->ID] < DoneNR)
+ continue;
+
+ // Orange box for early recursion stoppage
+ if (Show[Pkg->ID] == DoneNR)
+ printf("\"%s\" [color=orange,shape=%s];\n",Pkg.Name(),
+ Shapes[ShapeMap[Pkg->ID]]);
+ else
+ printf("\"%s\" [shape=%s];\n",Pkg.Name(),
+ Shapes[ShapeMap[Pkg->ID]]);
+ }
+
+ printf("}\n");
return true;
}
/*}}}*/
GCache = &Gen.GetCache();
Stats(CmdL);
+ return true;
+}
+ /*}}}*/
+// DisplayRecord - Displays the complete record for the package /*{{{*/
+// ---------------------------------------------------------------------
+/* This displays the package record from the proper package index file.
+ It is not used by DumpAvail for performance reasons. */
+bool DisplayRecord(pkgCache::VerIterator V)
+{
+ // Find an appropriate file
+ pkgCache::VerFileIterator Vf = V.FileList();
+ for (; Vf.end() == false; Vf++)
+ if ((Vf.File()->Flags & pkgCache::Flag::NotSource) == 0)
+ break;
+ if (Vf.end() == true)
+ Vf = V.FileList();
+
+ // Check and load the package list file
+ pkgCache::PkgFileIterator I = Vf.File();
+ if (I.IsOk() == false)
+ return _error->Error("Package file %s is out of sync.",I.FileName());
+
+ FileFd PkgF(I.FileName(),FileFd::ReadOnly);
+ if (_error->PendingError() == true)
+ return false;
+
+ // Read the record and then write it out again.
+ unsigned char *Buffer = new unsigned char[GCache->HeaderP->MaxVerFileSize];
+ if (PkgF.Seek(V.FileList()->Offset) == false ||
+ PkgF.Read(Buffer,V.FileList()->Size) == false ||
+ write(STDOUT_FILENO,Buffer,V.FileList()->Size) != V.FileList()->Size)
+ {
+ delete [] Buffer;
+ return false;
+ }
+
+ delete [] Buffer;
+
+ return true;
+}
+ /*}}}*/
+// Search - Perform a search /*{{{*/
+// ---------------------------------------------------------------------
+/* This searches the package names and pacakge descriptions for a pattern */
+bool Search(CommandLine &CmdL)
+{
+ pkgCache &Cache = *GCache;
+ bool ShowFull = _config->FindB("APT::Cache::ShowFull",false);
+ bool NamesOnly = _config->FindB("APT::Cache::NamesOnly",false);
+
+ // Make sure there is at least one argument
+ if (CmdL.FileSize() != 2)
+ return _error->Error("You must give exactly one pattern");
+
+ // Compile the regex pattern
+ regex_t Pattern;
+ if (regcomp(&Pattern,CmdL.FileList[1],REG_EXTENDED | REG_ICASE |
+ REG_NOSUB) != 0)
+ return _error->Error("Regex compilation error");
+
+ // Create the text record parser
+ pkgRecords Recs(Cache);
+ if (_error->PendingError() == true)
+ return false;
+
+ // Search package names
+ pkgCache::PkgIterator I = Cache.PkgBegin();
+ for (;I.end() != true; I++)
+ {
+ // We search against the install version as that makes the most sense..
+ pkgCache::VerIterator V = Cache.GetCandidateVer(I);
+ if (V.end() == true)
+ continue;
+
+ pkgRecords::Parser &P = Recs.Lookup(V.FileList());
+
+ if (regexec(&Pattern,I.Name(),0,0,0) == 0 ||
+ (NamesOnly == false &&
+ regexec(&Pattern,P.LongDesc().c_str(),0,0,0) == 0))
+ {
+ if (ShowFull == true)
+ DisplayRecord(V);
+ else
+ cout << I.Name() << " - " << P.ShortDesc() << endl;
+ }
+ }
+
+ regfree(&Pattern);
+ return true;
+}
+ /*}}}*/
+// ShowPackage - Dump the package record to the screen /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool ShowPackage(CommandLine &CmdL)
+{
+ pkgCache &Cache = *GCache;
+ for (const char **I = CmdL.FileList + 1; *I != 0; I++)
+ {
+ pkgCache::PkgIterator Pkg = Cache.FindPkg(*I);
+ if (Pkg.end() == true)
+ {
+ _error->Warning("Unable to locate package %s",*I);
+ continue;
+ }
+
+ // Find the proper version to use. We should probably use the DepCache.
+ if (_config->FindB("APT::Cache::AllVersions","true") == true)
+ {
+ pkgCache::VerIterator V;
+ for (V = Pkg.VersionList(); V.end() == false; V++)
+ {
+ if (DisplayRecord(V) == false)
+ return false;
+ }
+ }
+ else
+ {
+ pkgCache::VerIterator V = Cache.GetCandidateVer(Pkg);
+ if (V.end() == true || V.FileList().end() == true)
+ continue;
+ if (DisplayRecord(V) == false)
+ return false;
+ }
+ }
+ return true;
+}
+ /*}}}*/
+// ShowPkgNames - Show package names /*{{{*/
+// ---------------------------------------------------------------------
+/* This does a prefix match on the first argument */
+bool ShowPkgNames(CommandLine &CmdL)
+{
+ pkgCache &Cache = *GCache;
+ pkgCache::PkgIterator I = Cache.PkgBegin();
+ bool All = _config->FindB("APT::Cache::AllNames","false");
+
+ if (CmdL.FileList[1] != 0)
+ {
+ for (;I.end() != true; I++)
+ {
+ if (All == false && I->VersionList == 0)
+ continue;
+
+ if (strncmp(I.Name(),CmdL.FileList[1],strlen(CmdL.FileList[1])) == 0)
+ cout << I.Name() << endl;
+ }
+
+ return true;
+ }
+
+ // Show all pkgs
+ for (;I.end() != true; I++)
+ {
+ if (All == false && I->VersionList == 0)
+ continue;
+ cout << I.Name() << endl;
+ }
+
+ return true;
+}
+ /*}}}*/
+// ShowSrcPackage - Show source package records /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool ShowSrcPackage(CommandLine &CmdL)
+{
+ pkgSourceList List;
+ List.ReadMainList();
+
+ // Create the text record parsers
+ pkgSrcRecords SrcRecs(List);
+ if (_error->PendingError() == true)
+ return false;
+
+ for (const char **I = CmdL.FileList + 1; *I != 0; I++)
+ {
+ SrcRecs.Restart();
+
+ pkgSrcRecords::Parser *Parse;
+ while ((Parse = SrcRecs.Find(*I,false)) != 0)
+ cout << Parse->AsStr();
+ }
return true;
}
/*}}}*/
cout << endl;
cout << "apt-cache is a low-level tool used to manipulate APT's binary" << endl;
cout << "cache files stored in " << _config->FindFile("Dir::Cache") << endl;
- cout << "It is not ment for ordinary use only as a debug aide." << endl;
+ cout << "It is not meant for ordinary use only as a debug aide." << endl;
cout << endl;
cout << "Commands:" << endl;
cout << " add - Add an package file to the source cache" << endl;
cout << " dumpavail - Print an available file to stdout" << endl;
cout << " unmet - Show unmet dependencies" << endl;
cout << " check - Check the cache a bit" << endl;
+ cout << " search - Search the package list for a regex pattern" << endl;
+ cout << " show - Show a readable record for the package" << endl;
+ cout << " depends - Show raw dependency information for a package" << endl;
+ cout << " pkgnames - List the names of all packages" << endl;
+ cout << " dotty - Generate package graphs for GraphVis" << endl;
cout << endl;
cout << "Options:" << endl;
cout << " -h This help text." << endl;
cout << " -q Disable progress indicator." << endl;
cout << " -i Show only important deps for the unmet command." << endl;
cout << " -c=? Read this configuration file" << endl;
- cout << " -o=? Set an arbitary configuration option, ie -o dir::cache=/tmp" << endl;
+ cout << " -o=? Set an arbitary configuration option, eg -o dir::cache=/tmp" << endl;
cout << "See the apt-cache(8) and apt.conf(5) manual pages for more information." << endl;
return 100;
}
{'s',"src-cache","Dir::Cache::srcpkgcache",CommandLine::HasArg},
{'q',"quiet","quiet",CommandLine::IntLevel},
{'i',"important","APT::Cache::Important",0},
+ {'f',"full","APT::Cache::ShowFull",0},
+ {'g',"no-generate","APT::Cache::NoGenerate",0},
+ {'a',"all-versions","APT::Cache::AllVersions",0},
+ {0,"names-only","APT::Cache::NamesOnly",0},
+ {0,"all-names","APT::Cache::AllNames",0},
{'c',"config-file",0,CommandLine::ConfigFile},
{'o',"option",0,CommandLine::ArbItem},
{0,0,0,0}};
CommandLine::Dispatch CmdsA[] = {{"help",&ShowHelp},
{"add",&DoAdd},
{"gencaches",&GenCaches},
+ {"showsrc",&ShowSrcPackage},
{0,0}};
CommandLine::Dispatch CmdsB[] = {{"showpkg",&DumpPackage},
{"stats",&Stats},
{"dumpavail",&DumpAvail},
{"unmet",&UnMet},
{"check",&Check},
+ {"search",&Search},
+ {"depends",&Depends},
+ {"dotty",&Dotty},
+ {"show",&ShowPackage},
+ {"pkgnames",&ShowPkgNames},
{0,0}};
CacheInitialize();
CmdL.FileSize() == 0)
return ShowHelp(CmdL);
+ // Deal with stdout not being a tty
+ if (ttyname(STDOUT_FILENO) == 0 && _config->FindI("quiet",0) < 1)
+ _config->Set("quiet","1");
+
if (CmdL.DispatchArg(CmdsA,false) == false && _error->PendingError() == false)
- {
- // Open the cache file
- FileFd CacheF(_config->FindFile("Dir::Cache::pkgcache"),FileFd::ReadOnly);
- MMap Map(CacheF,MMap::Public | MMap::ReadOnly);
+ {
+ MMap *Map;
+ if (_config->FindB("APT::Cache::NoGenerate",false) == true)
+ {
+ Map = new MMap(*new FileFd(_config->FindFile("Dir::Cache::pkgcache"),
+ FileFd::ReadOnly),MMap::Public|MMap::ReadOnly);
+ }
+ else
+ {
+ // Open the cache file
+ pkgSourceList List;
+ List.ReadMainList();
+
+ // Generate it and map it
+ OpProgress Prog;
+ Map = pkgMakeStatusCacheMem(List,Prog);
+ }
+
if (_error->PendingError() == false)
{
- pkgCache Cache(Map);
+ pkgCache Cache(*Map);
GCache = &Cache;
if (_error->PendingError() == false)
CmdL.DispatchArg(CmdsB);
- }
+ }
+ delete Map;
}
// Print any errors or warnings found during parsing
projects / apt.git / blobdiff